Comparison

Intervals vs Justfit

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Intervals

This app provides a straightforward interval timer for structured training sessions like HIIT, boxing, or circuit training. It offers customizable timer profiles, clear visual and audio cues for transitions, and tracks your workout statistics. It can also function as a Pomodoro timer for focused work blocks.

Highlights
  • Customizable timer profiles
  • Clear visual countdown ring
  • Audio and haptic alerts
  • Session statistics tracking
  • Screen stays awake during sessions
  • Pomodoro timer functionality
Features
Read full description

Intervals is a beautifully simple interval timer built for anyone who trains with structure — whether that's a HIIT session, boxing rounds, circuit training, or a focused Pomodoro work block. Set your work time, set your rest time, and hit Start. Intervals handles the rest — counting down each phase, signalling transitions with audio and haptic cues, and tracking your session as you go. Multiple Timer Profiles Create and save as many named timer profiles as you need. Switch between "Boxing Rounds", "HIIT", "Pomodoro", or any custom setup in seconds. Your profiles are always one tap away. Clear Visual Feedback A large countdown ring fills as each phase progresses. The entire screen shifts — green for work, red for rest — so you always know exactly where you are, even at a glance from across the room. Audio & Haptic Alerts A countdown tone plays 3 seconds before each transition, so you're never caught off guard. Haptic feedback keeps you in the loop when the screen isn't visible. Session Stats See your work periods, rest periods, and total elapsed time at a glance. Stay motivated as those numbers climb. Built for Focus Keep your screen awake during sessions so Intervals is always there when you look up. No subscriptions. No ads. Just a timer that stays out of your way. Works as a Pomodoro Timer too Set 25 minutes of work and a 5-minute rest for the classic Pomodoro technique — or any work/break ratio that suits your flow.

About

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

Intervals4 screens
Justfit4 screens

Verdict

The call

The clearest difference is review sentiment: Justfit at 100% against Intervals's 45%. Justfit also leads on update cadence (every 3 days vs every 3 months) and iOS requirement (15.0 vs 26.0). Intervals's advantage is monetization model (free vs freemium). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Intervals sells 4 one-off in-app purchases and Justfit sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Intervals ships an update every 3 months, Justfit every 3 days. The most recent releases landed on September 21, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
Intervals versus Justfit: the parameters behind the verdict, then further details
ParameterIntervalsJustfit
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews45.5% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, iPod, Apple Watch — better
Requires iOS26.015.0 — better
Further details — not scored
Size4 MB104 MB
Age rating4+4+
DeveloperRGB Consulting LimitedFerda Nahit Fidanci

Customer experience

Intervals

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews11 reviews
Positive45.5%
Neutral0.0%
Negative54.5%

Justfit

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Intervals

One-time4
  • Small Tip$0.99
  • Remove Ads$0.99
  • Medium Tip$1.99
Show 1 more
  • Large Tip$3.99
4 purchases

Justfit

Subscriptions2
  • Monthly$1.991 Month
  • Annual$7.991 Year
One-time2
  • Lifetime Access$3.99
  • Lifetime Access$7.99

Questions

Is Intervals free?
Intervals is free to download, with in-app purchases available.
Is Justfit free?
Justfit is free to download, with in-app purchases available.
Do Intervals or Justfit have ads?
Neither Intervals nor Justfit shows ads.
Which is updated more often, Intervals or Justfit?
Intervals ships an update every 3 months, and Justfit every 3 days. Most recently, Intervals was updated on September 21, 2026 and Justfit on October 3, 2026.

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