ZTF vs PureGym US
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZTF
This fitness application assists personal trainers in monitoring their clients' progress and ensuring accountability. It provides a platform for trainers to manage client relationships and drive adherence to fitness plans.
- Client accountability tracking
- Personal trainer tools
- Fitness plan management
- Progress monitoring
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Zero Tolerance Fitness(ZTF), is a fitness app that helps personal trainers hold their clients accountable.
PureGym US
Manage your fitness journey with this gym companion app. Easily check in, handle your membership, and stay updated on gym news. It helps you stay active by integrating with health data.
- Mobile check-in
- Membership management
- Guest invitations
- Billing and balance updates
- HealthKit integration
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PureGym Feel Good Fitness for Every Body Welcome to the official PureGym US app, your all-in-one fitness companion with everything you need to crush your goals. Easily check in to the gym, manage your membership, get updates, and more. With the PureGym US app, you can stay on top of your fitness anytime, anywhere. Free with your PureGym membership! Top Features: Mobile Check-In. Scan the QR code on the home screen for easy, contactless entry. Secure Login Simple, secure access keeps your account and personal info safe. Bring a Guest Fitness is better with friends, so invite a guest to work out with you. Manage Your Membership Update billing, pay balances, and stay on top of your account. APPLE HEALTHKIT We also use HealthKit to allow users to share their activity and workout data with the app. This data is used to incentivise users to stay active.
Screenshots
Verdict
The clearest difference is review sentiment: ZTF at 100% against PureGym US's 10%. ZTF also leads on rating (5.0 vs 4.6). PureGym US's advantage is ratings volume (18K vs 4) and monetization model (free vs ad-supported). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ZTF holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: PureGym US has 18K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of ZTF's written reviews are positive against 10% of PureGym US's.
ZTF ships an update monthly, PureGym US every 5 weeks. The most recent releases landed on October 30, 2026 and November 1, 2026 respectively.
| Parameter | ZTF | PureGym US |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.6 (18K ratings) |
| Positive reviews | 100.0% of reviews — better | 10.0% of reviews |
| Number of ratings | 4 | 18K — better |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 58 MB | 115 MB |
| Age rating | 12+ | 4+ |
| Developer | Manoel Fangmo Djouokep | Blink Holdings Inc. |
Customer experience
ZTF
PureGym US
Bugs and requests
ZTF
Not enough reviews yet to summarise bugs or requests.
PureGym US
Reported bugs
5 issues- Login not working
- Password reset not working
- Registration not working
- Incorrect gym location
- Membership information not transferring
Requested features
5 requests- Ability to login with correct credentials
- Proper password reset functionality
- Seamless account registration
- Accurate gym location selection
- Membership information transfer
In-app purchases
ZTF
No in-app purchases
PureGym US
No in-app purchases
