Justfit vs Intervl
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
Intervl
This app provides a customizable interval timer for various activities like workouts, cooking, and focus sessions. It features large, readable displays, voice cues, and the ability to create and chain multiple routines. Track your progress and stay on schedule with ease.
- Customizable phase names
- Large, readable display
- Voice and beep cues
- Lock screen and Live Activity support
- Routine chaining
- Activity tracking
- Timer import/export
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Intervl is an interval timer you can read from across the room. Build any routine of repeating phases, start it with one tap, and let the cues carry you, even with your phone locked. Use it for anything that repeats • Workouts: Tabata, HIIT, EMOM, circuits and boxing rounds • Running: run and walk repeats • Stretching and breathwork • Focus and study: Pomodoro sessions • Cooking: sourdough folds, steak flips, anything on a schedule Name your own phases Work and Rest can become Stir and Simmer, Focus and Break, or Breathe in and Breathe out. Your names show on the timer, in the voice cues, on the lock screen and in the Live Activity. Read it from across the room The phase color fills the screen and the countdown is huge. "Next" tells you what's coming, and the big pause button sits right under your thumb. Cues that keep going Beeps and an optional voice keep playing when your phone is locked, alongside your music. Choose Voice, Beeps or Silent for each timer. Every timer at a glance Each timer is drawn as a strip of its phases, to scale, so you can tell a Tabata from a boxing session before reading a word. Set work, rest, rounds and sets with steppers and watch the total update as you go. Routines Play timers back to back: a warm-up, three rounds of intervals, a cool down. Put them in any order and repeat a timer as often as you like. Your week Activity shows your minutes per day, your streak and every finished session. Also • Live Activity on the lock screen and in the Dynamic Island • Open-ended timers that repeat until you stop, with your best set count • Export and import your timers • iPhone and iPad, light and dark mode, large text Free, with no ads, no account and no tracking.
Screenshots
Verdict
The clearest difference is in-app purchases: Intervl at none against Justfit's 7. Intervl also leads on ads (none vs shown). Justfit's advantage is update cadence (every 3 days vs every 12 months) and device support (4 vs 2). On price, rating and ratings volume 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 7 in-app purchases, starting at $2.99 per month. Intervl asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Justfit against 5.0 for Intervl. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Justfit ships an update every 3 days, Intervl every 12 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | Justfit | Intervl |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 days — better | Every 12 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 116 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Ferda Nahit Fidanci | Jinnius Labs Inc. |
Customer experience
Justfit
Intervl
In-app purchases
Justfit
- Monthly$2.991 Month
- Annual7 Days trial$14.991 Year
- Justfit Pro Annual1 Year trial$14.991 Year
- Lifetime Access$3.99
- Lifetime Access$7.99
- Justfit Pro Lifetime$22.99
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- Lifetime access$29.99
Intervl
No in-app purchases









