Justfit vs Interval Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Justfit
This app provides customizable interval timers for various activities like HIIT, Tabata, meditation, and studying. Track your progress with detailed history and analytics, and personalize your experience with custom sounds and colors.
- Fully customizable interval timers
- Full-screen circular countdown/countup stopwatch
- Pre-made templates for HIIT, Tabata, Meditation
- Customizable audio for intervals, sets, and rest
- Detailed progress tracking and analytics
- Timer sharing via export/import
- Multilanguage support
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Justfit is the interval timer that stays out of your way. Build a circuit, Tabata, HIIT or boxing timer in seconds and let it run in the background with big, readable digits. WHAT YOU GET • Unlimited intervals, sets and rest — name and color each one • Voice announcements and 3-2-1 countdown, so you never look at the screen • Sounds that cut through your music, then get out of the way • Apple Watch app and complication, Live Activity on the Lock Screen • History, streaks and weekly insights • Widgets and Siri: "Start Tabata in Justfit" FREE VS PRO Free: 3 timers, all basic sounds, 7-day history. Pro unlocks unlimited timers, templates, premium sounds and full insights — monthly, yearly or one-time. PRIVACY No account, no tracking. Your timers stay on your device and, if you choose, in your iCloud. Terms of Use (EULA): https://www.nahitfidanci.com/justfit/terms Privacy Policy: https://www.nahitfidanci.com/justfit/privacy
Interval Trainer
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With Interval Trainer, you can create timed interval exercise workouts, and do the workouts with both a visual workout countdown display and voice prompts to help you know where you are in your workout.
Screenshots
Verdict
The clearest difference is in-app purchases: Interval Trainer at none against Justfit's 4. Justfit's advantage is update cadence (every 3 days vs every 15 months). On price, ads, device support and iOS requirement 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. Justfit sells 4 in-app purchases, starting at $1.99 per month. Interval Trainer asks for nothing beyond the download.
Justfit ships an update every 3 days, Interval Trainer every 15 months. The most recent releases landed on October 3, 2026 and September 28, 2026 respectively.
| Parameter | Justfit | Interval Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days — better | Every 15 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 104 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Ferda Nahit Fidanci | Luke Taylor |
In-app purchases
Justfit
- Monthly$1.991 Month
- Annual$7.991 Year
- Lifetime Access$3.99
- Lifetime Access$7.99
Interval Trainer
No in-app purchases
Questions
Is Justfit free?
Is Interval Trainer free?
Do Justfit or Interval Trainer have ads?
Which is updated more often, Justfit or Interval Trainer?
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