Acuity Scheduling vs Nexa The Real Comparison for Aquarium Designers
Acuity Scheduling
$34/mo ($408/yr)
VS
Nexa
$279 once — own forever
or 3 payments of $99
Break even: 8.2 months at Acuity Scheduling's current price.
Does Acuity Scheduling Fit Aquarium Designers? Our Read
What aquarium designers need from their software, from sources outside Acuity Scheduling and outside Nexa:
Some states license aquarium facilities, and the licence is tied to each store location. Minnesota's DNR requires a one-year aquarium facility licence ($90) for wholesale and retail aquarium facilities that sell fish able to live in state waters. Each store needs its own licence, and tropical, subtropical and saltwater fish and goldfish are exempt. A business therefore needs a record of which species it sells and which licence applies. (dnr.state.mn.us)
Where a licence covers regulated fish, records must be kept at the sale level. Minnesota requires a receipt or shipping document for each sale of DNR-regulated fish. It must show the facility name and licence number, the customer's name and address, and the number and species of fish sold. The licensee must also return an annual Aquarium Facility Report with the renewal, even if there were no sales. Fish bought from out of state and listed on the licence need a Live Fish Importation, Transportation, and Stocking Permit. (dnr.state.mn.us)
Sales tax on aquarium and aquatic-feature work depends on whether the equipment stays movable property, and on how the invoice is written. In a Virginia Tax Commissioner ruling (about pond and aquatic installations, not aquariums specifically), installation labor is exempt only if it is separately stated on the customer's invoice. If it is not separately stated, tax applies to the total charge. Fish sales are taxable sales of tangible personal property. If the equipment becomes part of real property, the customer charges are not taxable, and the contractor pays tax on its own purchases. Invoices should therefore itemize equipment, livestock and labor. Other states' rules differ. (tax.virginia.gov)
Moving or importing live aquatic animals across state lines can need permits that vary by state and species. In Iowa, anyone importing live aquatic animals for sale must also hold an aquaculture unit or baitfish licence, and an import permit is required for any aquaculture species not on the state list. The page does not say whether aquarium-trade sales are exempt. A designer who sources livestock out of state should track the permit or licence behind each shipment. (ncrac.org)
Acuity Scheduling covers booking well: online booking, class scheduling, intake forms, packages, deposits, gift certificates, cancelation policies and payments through Stripe, Square, PayPal or Venmo. Its Standard plan adds text reminders and an appointment waitlist. Nothing in its feature list covers what this trade is regulated on: a record of which species you sell, which store licence applies, a sale-level receipt for regulated fish, or invoices that itemize equipment, livestock and labor. It is a scheduling tool, not a compliance or invoicing record.
Nexa covers more of the paperwork side: invoices, estimates and quotes that convert to invoices, which suit itemizing equipment, livestock and labor. It also has sales tax tracking, expenses, jobs with costing, photos on each job, a public booking page with intake forms, and a client pay portal through your own Stripe account. Nexa does not have text messages, a waitlist, recurring booking series or Google Calendar sync. Its automated emails, including reminders, send only while Nexa is open on one of your devices. It is software you run yourself, with no hosted support desk. The clients in its CRM have no street-address field, which matters if you must put a customer's address on a receipt. Nothing in either tool is built around species lists, per-store licences or import permits.
Over three years Acuity's $34/month plan costs $1,224 ($408 a year). Nexa is $279 once, or 3 payments of $99, and $458.64 over three years with optional Cloud Sync at $4.99/month. If you only need booking and text reminders, stay with Acuity. If your pain is itemized invoicing and job costing, Nexa is much cheaper. Either way, keep your species, licence and permit records in a separate tool built for that.
Our read for aquarium designers: Neither tool covers the trade's core need, which is species-level licence, sale and permit records; use livestock and compliance record-keeping software for that, and keep Acuity only if you rely on its text reminders and waitlist.
Read on each linked page in October 2026. Check them again before you decide; vendors change plans often.
Bottom Line
Acuity Scheduling costs aquarium designers $408/year at today's list price. Nexa is $279 once for invoicing, scheduling, CRM, time tracking and accounting in one suite — so after 8.2 months it has cost less than Acuity Scheduling, and you own it after that. What it is not: hosted-for-you software with a support desk and a roadmap you can lobby. That is the trade, and the rest of this page is the detail behind it.
Can it pay for itself?
Nexa is $279 once, about $23 a month over its first year. Its Drain Guard reads your expenses (from a linked bank, an imported statement, or ones you type in), finds the charges that repeat, and adds them up by the month. Keep or Cut then walks you through them one at a time. Cancel $23 a month of charges you'd forgotten about and Nexa has paid for itself inside the first year, before you count the Acuity Scheduling bill you'd stop paying.
It depends on what you find and what you cancel, so we don't promise a number. In our demo data, Drain Guard finds 5 subscriptions adding up to $110.13 a month. That is sample data, not a customer's.
The verdict for aquarium designers: Neither Acuity Scheduling nor Nexa is the main system for this work; start with software built for it. Nexa only makes sense beside it, at $279 once against $1,224 for Acuity Scheduling over three years.
Choose Nexa if:
You're done paying monthly forever
You're a solo operator or small team (1-5)
You need scheduler, connect crm and invoicing in one tool
You're tired of price increases
You want to own your tools like you own your equipment
Choose Acuity Scheduling if:
You have a large team (10+) needing enterprise features
You're deeply invested in Acuity Scheduling's specific workflow
You need a feature Nexa doesn't have yet
Sound Familiar?
Half the job is build and half is keeping things alive. A design day starts at a client's home or lobby, measuring the wall, checking whether the floor can carry a 300-gallon tank full of water and rock, and sketching how the sump and plumbing will hide in the cabinet below. Back at the shop you fabricate or fit the tank, rig the filtration, the skimmer, the return pumps, and the controller that'll text you if a parameter drifts. Install day is heavy and precise: leveling a tank that can't ever be moved once it's full, running RO water, aquascaping live rock and substrate into something that looks natural. Then comes the part clients hate, the wait, because a new system has to cycle for weeks before fish can survive in it, and you're the one explaining that no, we can't stock it tomorrow. The rest of the week is service routes: testing water, scraping algae, dosing, swapping filter media, and quietly catching the small failures before they become a tank crash. A dead pump overnight can kill a reef worth more than a used car, so the unglamorous maintenance is really the whole business.
Designing a tank to fit a client's wall and floor load when a large aquarium weighs as much as a car
Cycling a brand-new system for weeks before a single fish can go in, while the client wants it stocked now
Building reliable life support so a pump failure on a $20,000 reef doesn't wipe it out overnight
Juggling install days against tank maintenance routes for clients who pay you to keep their systems alive
Scheduling, client records and invoicing are the pieces of that day. Some tools rent you each piece separately. A few — Nexa among them — bundle the lot and carry their own booking link, with no per-appointment cut. The sections below price both routes honestly.
None of that is a software problem you can buy your way out of in one click — it is why the tool you pick matters more than what it costs. Acuity Scheduling solves some of it. So does Nexa. The difference is what you are left holding in three years.
What Acuity Scheduling Actually Costs Aquarium Designers
Today's list price is $34/month — $408 a year, from Acuity Scheduling's own pricing page. Every figure below is that price, multiplied. Nothing is projected.
Three years at today's price
Year 1$408
Year 2$408
Year 3$408
Three years of Acuity Scheduling$1,224
Nexa: $279 once (or 3 × $99). Over the same three years, that is $945 less.
If Acuity Scheduling raises its price, the three-year cost goes up; if it cuts it, the cost comes down. We don't guess which. Add-ons, extra seats and card-processing fees are not included, on either side.
Feature-by-Feature
Feature
Acuity Scheduling
Nexa
Invoicing
✗
✓
Scheduling
✓
✓
CRM
✗
✓
Time Tracking
✗
✓
Full Accounting
✗
✓ (SIMPL)
Task Management
✗
✓
Works offline
—
✓
Price
$34/mo
$279 once or 3 × $99
3-Year Total
$1,224
$279
You own it?
No — stop paying, lose access
Yes — forever
✓ and ✗ for Acuity Scheduling come from its own published feature list. — means the feature isn't in that list, which is not the same as Acuity Scheduling lacking it: check with them. Three years is at today's price.
What "$279 Once" Does And Doesn't Buy
It buys the software, not a service contract. You install Nexa and it runs on your machine. There is no seat count, and nothing stops working if you stop paying, because there is nothing to stop paying.
Acuity Scheduling's monthly fee is not only rent. It pays for their hosting, their support desk, and their engineers shipping changes every week. If those matter to how you work, that is a real thing you would be giving up.
Cross-device sync is the one optional extra — $4.99/month if you want your data mirrored between machines. Skip it and Nexa still works; you just sync manually.
The honest risk of buying once: you are betting on us still being here to improve it. The honest risk of renting: the price is theirs to raise, and the graveyard section below is a record of tools that did exactly that.
What Acuity Scheduling Does Better
Straight from Acuity Scheduling's own feature set. If one of these is the reason you pay them, that reason does not disappear because Nexa is cheaper.
Intake forms
Package and subscription billing
Gift certificates
HIPAA compliance (Powerhouse)
Squarespace integration
A smaller bill up front: plans start at $20/month, against $279 paid once for Nexa.
Acuity Scheduling is the better call if you need intake forms specifically, or if your team is large enough that per-seat pricing still beats buying software outright.
What Acuity Scheduling Is Built For
Acuity says it is for "anyone in the business of time," from solo practitioners to multi-location teams. It lists beauty, business services (consulting, coaching), wellness, fitness, visual and performing arts, and education. (acuityscheduling.com)
The Starter plan costs $16/month billed annually ($20 monthly) and includes 1 calendar, client self-scheduling, email reminders, custom client forms and automatic time zone conversion. (acuityscheduling.com)
Payments run through Stripe, Square, PayPal or Venmo on all plans. The Standard plan ($27/month annual, up to 6 calendars) adds text reminders, an appointment waitlist, memberships and packages, and gift certificates. (acuityscheduling.com)
The Premium plan ($49/month annual, up to 36 calendars) adds an AI Booking Assistant, a Business Associate Agreement for HIPAA compliance, removal of the Acuity logo, multiple time zones for staff or locations, and custom API and CSS access. Unlimited calendars require the Enterprise team. (acuityscheduling.com)
All plans have a 7-day free trial with no credit card required. There is no free plan beyond the trial. (acuityscheduling.com)
The site lists 15 integrations, including Google Calendar, Apple Calendar, Stripe, Square, PayPal, QuickBooks, Zoom, Google Meet, Zapier, Mailchimp and Squarespace. (acuityscheduling.com)
Named features include online booking, class scheduling, packages, subscriptions, gift certificates, coupons, deposits, custom intake forms, cancelation policies, a mobile app and a website builder. The site is offered in 6 languages. (acuityscheduling.com)
What people outside Acuity Scheduling and outside Nexa say:
Software Finder shows a 4.5 rating from 25 reviews, with category scores of 9/10 for ease of use, value for money, customer support and functionality. The most-cited strengths are ease of use, integrations, automated email and text reminders that reviewers credit with reducing no-shows, and customizable emails and calendar views. (softwarefinder.com)
Software Finder reviewers also raise drawbacks. Some small businesses find it expensive, and one reported unresolved booking issues and slow support replies. Booking form appearance is limited, and add-ons are checkboxes only, so customers can't choose quantities. Stripe refunds need a separate login to Stripe. One business said it lacked features as its staff and resources grew, and a healthcare reviewer said it isn't suited to HIPAA-regulated practices. (softwarefinder.com)
Secret's page has no user reviews. Its editorial text calls the product user-friendly, customizable and affordable. It also lists as cons that pricing may be expensive for tight budgets, advanced features are limited, and some third-party integrations may be lacking. (joinsecret.com)
Read on each linked page in October 2026. Check them again before you decide; vendors change plans often.
Where business tools fit — for an aquarium designer
Software doesn't do your clients — it automates the business around it. And that part is the same for every aquarium designer: find the work, manage it, bill for it, get paid. Each step has a tool — and the right single tool runs the whole loop, so the handoffs are automatic and you get back to your clients. Tap a step to see what gets automated.
1
Find the work
Get booked
↓
A new client finds you and books a time — no phone tag, no double-booking.
CRM / contacts
Estimates & proposals
Booking / scheduling
then ↓
2
Manage the work
Deliver the service
↓
The session itself — with the client history, notes, packages, and add-ons right there instead of in three different places.
Job / project tracking
Time tracking
Expenses, materials & add-ons
then ↓
3
Bill for it
Send the bill
↓
The work becomes the invoice — the hours, the add-ons, the materials, the deposit credited — totaled and sent, instead of re-typed at 9pm.
Invoicing
Deposits & credits
then ↓
4
Get paid
Collect payment
↓
Paid by card or link, the deposit credited, and what's overdue chased — without you doing it by hand.
Card / online payments
Automatic reminders
You can stitch four separate subscriptions across these four steps, or run one tool that does the whole flow so a booking becomes a job becomes an invoice becomes a payment without re-typing. Either way the goal is the same: less time on the business of the business, more on your clients. (Nexa is built to be the one — but the honest options for each step are above and below.)
Watch a job become an invoice
This is the connection that makes the rest worth it. A aquarium designer's job already holds the services, the hours, the add-ons, and the materials — so the invoice builds itself from the work instead of you re-typing it at 9pm. Toggle an add-on or nudge the hours and watch it recompute.
The job 125-gallon freshwater planted tank build
ServiceAquascape design1 × $350$350
TimeLabor — tracked on the job
8 hrs× $85/hr$680
MaterialsTank, stand, canister filter, lighting and CO2$1,800
MaterialsHardscape rock, substrate and plants$450
→
The invoice builds itself
Subtotal$3,580
Deposit credited−$1,500
Invoice total$2,080
You didn't write this invoice — the job did.
Calculate Your Full Stack
Acuity Scheduling plus whatever else you're paying for:
Email yourself this comparison?
Switching from Acuity Scheduling
1
Export your data — Go to Settings → Export. Download your client list and appointment history.
2
Set up Nexa Scheduler — 15-minute setup. Import clients and recreate your appointment types.
3
Update your links — Replace your Acuity booking link everywhere — website, email, social.
4
Cancel Acuity — Cancel Squarespace subscription. Download a final backup of your data.
✓ 30-day money-back guarantee. Zero risk.
What This Means for Aquarium Designers
The median Aquarium Designer earns $32,000/year. At $408/year, Acuity Scheduling is a recurring slice of that — paid again every year, whether the year was good or not. Owning the same jobs outright is $279 once, and the slice stops.
Nexa is $279 once. Invoicing, scheduling, CRM, time tracking, accounting — all connected, built for aquarium designers. You own it like you own your Acrylic and glass fabrication tools for building and bonding custom tanks.
Is Nexa actually right for an aquarium designer?
An honest fit check — because the wrong tool is worse than no tool.
Right for you if
You run solo or a small team — like the 15,000 aquarium designers in the US who do, and you wear every hat.
You're tired of paying every month for a monthly subscription stack and a pile of apps that don't talk to each other.
You want invoicing, scheduling, and client tracking in one place — not scattered across five apps.
You'd rather own your software once, the way you own your Acrylic and glass fabrication tools for building and bonding custom tanks.
Look elsewhere if
You have a large team that needs enterprise seats, granular roles, and dedicated admin staff — Nexa is built for solo and small operators (1–5), and a bigger platform will serve you better.
You need full payroll for a large team or deep, SKU-level inventory — that's not what Nexa is for.
You're genuinely happy paying monthly and don't mind stitching tools together. No tool fixes a workflow you already like.
The honest fit: if you're a solo or small aquarium designers business that owns its tools and is sick of renting software, Nexa replaces your whole stack for $279 once. If you're scaling into a large team with dedicated admin staff, a bigger platform may fit better — and we'd rather tell you that now than sell you the wrong thing.
Scheduling, client records and invoicing are the pieces of that day. Some tools rent you each piece separately. A few — Nexa among them — bundle the lot and carry their own booking link, with no per-appointment cut. The sections below price both routes honestly.
What aquarium designers actually deal with
Designing a tank to fit a client's wall and floor load when a large aquarium weighs as much as a car
Cycling a brand-new system for weeks before a single fish can go in, while the client wants it stocked now
Building reliable life support so a pump failure on a $20,000 reef doesn't wipe it out overnight
Juggling install days against tank maintenance routes for clients who pay you to keep their systems alive
A day in the life of a aquarium designer
Half the job is build and half is keeping things alive. A design day starts at a client's home or lobby, measuring the wall, checking whether the floor can carry a 300-gallon tank full of water and rock, and sketching how the sump and plumbing will hide in the cabinet below. Back at the shop you fabricate or fit the tank, rig the filtration, the skimmer, the return pumps, and the controller that'll text you if a parameter drifts. Install day is heavy and precise: leveling a tank that can't ever be moved once it's full, running RO water, aquascaping live rock and substrate into something that looks natural. Then comes the part clients hate, the wait, because a new system has to cycle for weeks before fish can survive in it, and you're the one explaining that no, we can't stock it tomorrow. The rest of the week is service routes: testing water, scraping algae, dosing, swapping filter media, and quietly catching the small failures before they become a tank crash. A dead pump overnight can kill a reef worth more than a used car, so the unglamorous maintenance is really the whole business.
The tools a working aquarium designer actually owns
Acrylic and glass fabrication tools for building and bonding custom tanks
Sump, protein skimmer, and canister-filter components for life-support builds
Reverse-osmosis/deionization water system and a refractometer for salinity
Aquascaping kit (long tweezers, scissors, substrate, live rock, hardscape)
Controller and test kits for pH, ammonia, nitrate, and reef parameters
Local aquarium designers on Nexa
Real aquarium designers near you who run their business on Nexa — book directly, no platform fee.
Are you an aquarium designer? Post your business and get found in your area — $2.99 one-time.
Or browse every aquarium designer on Nexa →
The kit a working aquarium designer owns
The tools of the trade — each a one-time buy that earns its keep for years.
Core kitEssential
Acrylic and glass bonding tools
$80–$350
Core kitEssential
RO/DI water system
$200–$800
Core kitEssential
Refractometer and test kits
$30–$150
Core kitEssential
Aquascaping tool kit
$30–$120
Core kitEssential
Reef controller and monitoring
$300–$1,200
Core kitEssential
Protein skimmer and sump components
$200–$900
Core kitEssential
Canister filtration and return pumps
$150–$700
Upgrade
Lighting systems
$200–$1,200
The core kit, bought once$990–$4,220
Here's the bar that matters: you spent $990–$4,220 on tools that last for years, and never thought twice. So why should the software cost more than your whole kit — every single year? Hold it to the same standard as a good tool: $279, once.
How To Read This Page
We make Nexa. It is one of the two options compared here, so read this with that in mind. We have tried to make Acuity Scheduling's case the way we would want ours made — their strengths above are their own published feature list, not our summary of it.
The prices are Acuity Scheduling's published list prices, checked on the date shown in the sources below. Plans change; check theirs before you decide.
No customer quotes appear on this page because we do not have any from aquarium designers we can verify. For user testimony, read the independent reviews — Acuity Scheduling on G2 and on Capterra — where the reviewers are not selling you anything.
Check the price yourself:Acuity Scheduling's own pricing page is the source for every figure above, read on the date shown in the sources section below.
We are not neutral about subscriptions, and that is the argument, not a hidden assumption: software you pay for once is cheaper over three years than software you rent, unless you need something only the rented one does.
How we put this guide together
We build an aquarium designer's guide the same way every time, and we'd rather you trust it than take it on faith. Nexa is our product, so the test we hold ourselves to is simple: a tool only "wins" a job here when it genuinely does that job better for an aquarium designer — and where something free, open-source, or buy-once does it better, we say so and link you to it. Where Nexa falls short (payroll is the honest example), we name the alternative outright.
Where the numbers come from
Vendor pricingAcuity Scheduling $408/yr, Square, Vagaro $600/yr, Wave $228/yr — taken from each company's published plans, last verified September 2026. Pricing moves; each name above links straight to that vendor’s own pricing page so you can confirm it before you decide.
Income contextThe $32,000 median we cite for the typical aquarium designer is occupational median annual pay from the U.S. Bureau of Labor Statistics (Occupational Employment & Wage Statistics), compiled April 2026. We use it only to show software spend as a share of real income — your own numbers will differ.
Three-year mathMulti-year totals are today's list price multiplied by the number of years. No price rise is projected, so the figure can be checked against the vendor's own pricing page; if they raise it, the real cost is higher.
Found something out of date? Prices change and we don't catch every move the day it happens. This guide is published and maintained by the Nexa team; if a figure here is wrong, tell us and we'll fix it — getting it right matters more to us than the sale.
FAQ
Is Nexa really a Acuity Scheduling replacement?
For solo aquarium designers and small teams, yes. invoicing, scheduling, CRM, time tracking, task management, and full accounting — all for $279 once. Acuity Scheduling may be better if you have a large team (10+) or need enterprise-specific features.
What does Acuity Scheduling do that Nexa doesn't?
Acuity Scheduling has features like Intake forms and Package and subscription billing that some businesses rely on. For most solo aquarium designers, these aren't dealbreakers.
How fast does Nexa pay for itself?
At $34/month, Nexa pays for itself in 8.2 months. After that: $408 saved every year.
Can I pay in installments?
Yes. Nexa is $279 as a one-time payment, or 3 payments of $99 ($297 total). Either way it's a one-time purchase — no subscription, no recurring fees ever.