Interval Timer □ HIIT Timer vs Polysthenics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interval Timer □ HIIT Timer
Easily set up custom workout intervals with a simple drag-and-tap interface. This app provides audio cues and detailed history to track your fitness progress, even while listening to music.
- Customizable intervals
- Drag-and-tap interface
- Voice and beep guides
- Background audio support
- Detailed workout history
- Repeat previous workouts
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A simple and beautiful interval timer. 1. Drag to set your custom intervals for workout, rest, rounds, etc 2. Tap to start. Interval Timer doesn't interfere with your music or other apps: ∙ Listen to your music apps while you work out. ∙ Voice or beep guides for every workout. ∙ You can leave the app and still listen to the audio guides, in order to follow a workout you found online. And no need to manually record your workouts: ∙ Detailed history and statistics pages to track your progress. ∙ Repeat a previous workout from your history, so you don't need to set it again. If you have any ideas for how to improve the app, just tap "Contact Support" inside the app and let us know! We are always trying to improve Interval Timer. This app offers an optional auto-renewable subscription, Premium Pass (monthly), and a one-time Lifetime Pass. Premium Pass starts with a 1-week free trial for eligible new subscribers, then renews automatically every month at the price shown in the app until you cancel. Payment is charged to your Apple Account when you confirm the purchase or, with a free trial, when the trial ends. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for the renewal within 24 hours before the end of the current period. You can manage the subscription and turn off auto-renewal at any time in your Apple Account settings. Cancelling stops the next renewal, and Premium stays active until the end of the period you've paid for. Any unused part of a free trial ends when you buy a subscription. Privacy Policy: https://float.support/interval-timer/privacy Terms of Use: https://float.support/interval-timer/terms
Polysthenics
Easily plan and schedule your fitness classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location details. Optimize your time and enjoy the convenience of managing your fitness activities on the go.
- View class schedules
- Sign up for classes
- Access studio location
- Optimize time management
- Convenient mobile access
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Download the Polysthenics App today to plan and schedule your classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s location information. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!
Screenshots
Verdict
Interval Timer □ HIIT Timer and Polysthenics both sit at 4.8 stars, but that hides the real split: 100% of Polysthenics's written reviews are positive against 61% of Interval Timer □ HIIT Timer's. Polysthenics also leads on in-app purchases (none vs 5). Interval Timer □ HIIT Timer's advantage is ads (none vs shown) and ratings volume (88K vs 1). On price, rating, update cadence and device support 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. Interval Timer □ HIIT Timer sells 5 in-app purchases, starting at $1.99 per month. Polysthenics asks for nothing beyond the download.
Polysthenics holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Interval Timer □ HIIT Timer has 88K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 61% of Interval Timer □ HIIT Timer's written reviews are positive against 100% of Polysthenics's.
Interval Timer □ HIIT Timer ships an update every 5 weeks, Polysthenics monthly. The most recent releases landed on November 14, 2026 and November 4, 2026 respectively.
| Parameter | Interval Timer □ HIIT Timer | Polysthenics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (88K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 88K — better | 1 |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 155 MB |
| Age rating | 4+ | 4+ |
| Developer | Float Tech, LLC | Polysthenics LLC |
Customer experience
Interval Timer □ HIIT Timer
Polysthenics
Bugs and requests
Interval Timer □ HIIT Timer
Reported bugs
3 issues- Timer not always accurate
- Favorites/saved workouts feature not working
- Inconsistent behavior when pausing/resuming
Requested features
3 requests- Ability to save and name custom workouts
- More flexibility in exercise/rest time settings
- Option to adjust volume of voice prompts
Polysthenics
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Interval Timer □ HIIT Timer
- Premium Pass7 Days trial$1.991 Month
- Premium Pass7 Days trial$2.991 Month
- Lifetime Pass$14.99
- Lifetime Pass$19.99
- Premium Forever Promo$29.99
Polysthenics
No in-app purchases
Questions
Is Interval Timer □ HIIT Timer free?
Is Polysthenics free?
Which has better reviews, Interval Timer □ HIIT Timer or Polysthenics?
Do Interval Timer □ HIIT Timer or Polysthenics have ads?
Which is updated more often, Interval Timer □ HIIT Timer or Polysthenics?
Other comparisons
