Zatrovo vs Gymdesk: Booking, Billing, and Member Management Compared

Run the Seat-Curve Test before you compare a single feature. Plot your active-member count 18 months out, then price both platforms at each point. Gymdesk publishes tiered pricing that steps from $75 to $200 a month as your roster grows (Gymdesk pricing). Zatrovo charges one flat rate. That curve decides most studios.

Disclosure: Zatrovo publishes this blog and is one option discussed below. We have represented every competitor as fairly as we can. Pricing is sourced from vendor websites as of 2026-08-26 and linked below.

Below is the operator version of this comparison: what each system does at the front desk on a Tuesday evening, not what the feature grid claims.

What is the fastest way to choose between Zatrovo and Gymdesk?

Price both at your projected 18-month member count first. Gymdesk bills by active-member tier; Zatrovo bills one flat rate regardless of headcount.

The Seat-Curve Test takes about ten minutes. Open your last 12 months of month-end active counts. Fit the trend forward 18 months. Then mark where that line crosses 50, 100, 200, and 400, because those are Gymdesk's published tier boundaries.

A studio sitting at 46 active members pays $75 per month on Gymdesk's entry tier and $89 on Zatrovo. Gymdesk is cheaper. Add five members and the same studio crosses into the next tier at $100. The order reverses on the strength of one new sign-up.

The number that matters is not today's roster. It is the roster you are building toward. If your growth plan is flat, tiered pricing is often the better deal. If you are running intro offers and expect a step change, a flat rate removes the moment where growth costs you money.

One more input: seasonal churn. Studios that shed 15% of the roster every August and rebuild it in January can bounce across a tier boundary twice a year. Check whether your vendor prorates that down as well as up.

How do the published price lists compare at your member count?

Gymdesk's published tiers run $75, $100, $150, and $200 per month by active-member count. Zatrovo lists a single $89 per month rate with no tiers.

Read the add-on rows carefully, because that is where a quoted price and an invoiced price diverge. A 24-hour access gym at 180 active members on Gymdesk's $150 tier, with three doors and a branded app, publishes at $350 per month. That is not hidden pricing; it is on the page. It is simply not the number anyone quotes in a demo.

Which system handles class booking the way a front desk actually needs?

Both cover capacity, waitlists, and reminders. The separation shows up in cancellation-window rules, late-cancel fees, and what happens to a class pack credit.

Gymdesk states that members can join a waitlist when a session is full, that booking and cancellation windows are configurable by session capacity and membership type, and that staff can see who did not show and re-engage them.

Here is the test that actually separates booking systems. Set a 12-hour cancellation window on a 6:00 a.m. class. Have a test member cancel at 7:00 p.m. the night before. Then ask three questions. Did the credit return to the member's pack, or was it burned? Did the waitlist promote the next person automatically, and how quickly? Did the promoted member get a notification they would plausibly see before 6:00 a.m.?

Most demos never run that sequence. It is where a 14-person reformer class quietly runs at 11 because the waitlist promoted someone at 2:00 a.m. with no push notification.

Set your auto-promotion cutoff to stop at the cancellation window, not at class start. Promoting someone 20 minutes before a class they cannot reach turns a waitlist into a second no-show. For appointment-led businesses, the equivalent test is studio scheduling with per-technician service durations, which behaves nothing like a class grid.

How do billing and failed payments differ in practice?

Gymdesk publishes exact processing rates and payout timings. That transparency is worth real money, because ACH versus card is the single largest controllable cost line.

Gymdesk Payments charges 2.9% plus $0.30 per card transaction, 3.5% plus $0.30 for American Express, and 1% for ACH capped at $5. Card payouts settle at T+2 business days, ACH at T+4. Zatrovo does not publish a rate on its pricing page, so get it in writing before you sign.

Do the arithmetic on your own roster. A studio with 200 members at $180 per month collects $36,000. All on card, processing runs about $1,104. All on ACH at 1%, where every charge sits under the $5 cap, it runs about $360. That is roughly $3.70 per member, or about $740 a month. The gap widens above a $500 price point, where the ACH cap bites and the card fee keeps scaling, which is why the ACH versus credit card decision for studios matters more for a $2,400 annual prepay than for a $19 drop-in.

The failed-payment procedure matters more than the rate. Set retries to day 1, day 4, and day 8, not three consecutive days, because most card declines are expiry or issuer-fraud holds that a same-week retry will not clear. Call, do not email, on the second failure. A card that fails twice and is never spoken to becomes a cancellation about six weeks later.

What happens when a member wants to cancel?

Cancellation flow is now a compliance question, not a design preference. California requires cancellation through the same medium used to sign up.

California's AB 2863 amended the state's Automatic Renewal Law and took effect in 2025. It applies to contracts entered into, amended, or extended on or after its operative date, so check the current text against your own sign-up dates (California Legislative Information). A member who signed up online must be able to cancel online, with a prominent direct link or button, presented alongside any retention offer rather than buried behind it.

At the federal level the picture is looser. The FTC's amended Negative Option Rule, the one carrying the click-to-cancel requirement, was vacated by the Eighth Circuit in July 2025, reinstating the earlier version of the rule (Federal Trade Commission). The FTC continues to take complaints, and further rulemaking remains possible.

The operator translation: do not rely on the federal rule to tell you what your cancellation flow needs. Build to the strictest state you operate in, then apply it everywhere. It is one flow instead of five.

Which platform fits martial arts, and which fits beauty and spa?

Gymdesk originated in martial arts software and carries rank and belt tracking. Zatrovo covers appointment-led beauty verticals alongside class-based fitness.

If you run a dojo, the belt question is not cosmetic. Rank tracking tied to attendance counts means the system tells you who is eligible for the next grading instead of a coach counting cards. That is a weekly workflow, and Gymdesk's history in that vertical shows.

If you run a lash studio, a nail bar, or a spa, the workflow is different in kind. You need per-technician service durations, processing-time gaps where the room is occupied but the technician is free, and add-on services that extend an existing appointment without creating a second booking. Class-grid logic does not model any of that.

The mixed case is the interesting one: a pilates studio that also sells one-to-one reformer sessions and infrared sauna slots. Roughly a third of revenue moves through an appointment calendar rather than a class schedule. Test that third specifically. Book a 50-minute session with a 10-minute room turnaround, then try to book the room again 55 minutes later and see whether the system stops you.

How hard is the migration, and what actually breaks?

Data moves easily. Payment credentials do not. Budget two weeks of parallel running and expect to re-collect payment details from part of your roster.

Gymdesk states there are no data export fees and that member records, attendance history, and payment records export in standard formats when you leave. Take that at face value; it is a fair policy and not every vendor matches it.

The breakage is on the money side. Card tokens are held by the processor, not the software, and they rarely move between processors. ACH mandates generally need fresh authorization. So the migration plan is:

1. Export members, attendance, and open packs in week one. Import and reconcile counts before touching billing.
2. Send the re-authorization request on a Tuesday or Wednesday morning. Weekend sends underperform badly.
3. Run both systems through one complete billing cycle. Reconcile the two charge lists line by line.
4. Chase non-responders by phone from day 5, not day 20. A membership with no live payment method for three weeks is functionally canceled.
5. Only then switch off the old system.

Treat the re-authorization request like a checkout you are trying to save. The same tactics that work for recovering abandoned checkouts work here: short message, one link, one action, a follow-up 48 hours later.

What do the reports tell you about members about to quit?

Both give attendance and revenue reporting. The question is whether the system surfaces a silent member before the cancellation email, or after.

Industry-wide, non-attendance is low: the Health & Fitness Association reports that fewer than 5% of members did not visit their facility at all during 2025, across a US membership base above 80 million (Health & Fitness Association). That is encouraging for the industry and useless as a management tool, because the members you lose are almost never the zero-visit ones. They are the ones who went from 8 visits a month to 3.

So build the rule on a rate change, not an absolute. Flag any member whose 30-day visit count is below half their prior 90-day monthly average. Review that list every Monday morning. Gymdesk exposes no-show data and re-engagement prompts; whichever platform you pick, the report you need is a declining-frequency list, and if the system will not produce one, export attendance to a spreadsheet and build it yourself. The full method is in at-risk member detection.

Call the flagged members within 48 hours of the Monday review. A studio that batches these calls to the end of the month is calling people who already decided.

How should you run a two-week head-to-head trial?

Use the 40-Ticket Trial. Load 40 real historical front-desk events into both systems, in the same order, and time how long each takes.

Gymdesk offers a 30-day free trial with no credit card. Zatrovo offers 14 days on the same terms. That asymmetry is fine, because 14 days is enough if the trial is structured.

Pull 40 events from your last month: 12 bookings, 6 late cancellations, 4 no-shows, 5 failed payments, 4 membership freezes, 3 pack expirations, 3 refunds, 2 family-account changes, and 1 full cancellation. Real names, real dates, real amounts.

Run all 40 through each platform. Record two things per event: seconds to complete, and whether it took a manager or a front-desk hire could do it alone. The second column is the one that predicts your actual cost, because a system only a manager can operate is a system that hires a manager.

Who should pick Gymdesk, and who should pick Zatrovo?

Gymdesk fits sub-50-member gyms, martial arts schools, and any facility needing integrated door access. Zatrovo fits growing and multi-service studios wanting flat pricing.

Pick Gymdesk if you are under 50 active members and expect to stay there, if belt and rank tracking is a weekly workflow, or if you need software-controlled door access for 24-hour entry. The $75 entry tier is genuinely low, the 30-day trial is generous, and published processing rates plus a no-fee export policy are signs of a vendor that does not trap customers.

Pick Zatrovo if you are above roughly 100 active members and growing, if you run appointment-based services alongside classes, or if you want the price you sign to be the price you pay at 400 members. Also weigh the staffing side either way, since payroll structure and 1099 versus W-2 classification for instructors drives more of your cost base than software ever will.

If you are somewhere in the middle at 60 to 90 members, run the Seat-Curve Test and the 40-Ticket Trial. Two hours of work beats a year on the wrong platform.