Comparison

Interval Timer Plus vs Justfit

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

Head to head
About

Interval Timer Plus

This versatile timer app offers a simple yet powerful way to manage timed activities. Customize multiple intervals with individual colors and sounds, and save them as presets for quick access. It's designed for ease of use and visibility, even from a distance, and works seamlessly in the background.

Highlights
  • Customizable intervals
  • Named intervals with voice readout
  • Individual colors and sounds
  • Count time or repetitions
  • Unlimited presets
  • Works in background
  • Full screen color coding
Features
Read full description

Free, simple and easy to use all purpose Interval Timer SIMPLE AND FREE INTERVAL TIMER + 1-Tap Quickstart + No signup required, download and get going immediately GLANCEABLE + Very Big Fonts, visible from everywhere + Full screen color coding, works like a traffic light right in front of you + Portrait or landscape, always uses the full screen space POWERFUL ADVANCED PRESETS + Multiple intervals, each individually customizable + Name your intervals and have Interval Timer read it out to you + Individual colors and sounds + Count time or repetitions + Unlimited amount of presets ACCESSIBLE + Works with locked screen or while in another app + Reads out the interval name, so you know exactly what’s on + Vibration or silent mode, for the times when you need to tune it down + Works great with headphones and your own music + Supports dark and light mode REPEAT YOUR ROUTINE + Prepare and save your settings in presets + Pick your presets and start with just 1-tap OPTIMIZE ALL OF YOUR ACTIVITIES + Tabata timer + HIIT training + Crossfit + Circuit training + Fitness routines + Home workouts + Boxing round timer + Calisthenics circuit timer

About

Justfit

This interval timer app allows users to create custom workout routines like Tabata, HIIT, or boxing circuits with customizable intervals and voice announcements. It offers background operation, Apple Watch integration, and detailed workout history.

Highlights
  • Unlimited custom intervals, sets, and rest periods
  • Voice announcements and countdowns
  • Background operation with large display
  • Apple Watch app and Lock Screen Live Activity
  • Workout history and weekly insights
  • Widgets and Siri integration
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

Interval Timer Plus4 screens
Justfit4 screens

Verdict

The call

The clearest difference is ads: Interval Timer Plus at none against Justfit's shown. Interval Timer Plus also leads on ratings volume (6.4K vs 1). Justfit's advantage is update cadence (every 3 days vs every 2 months). On price, rating, review sentiment 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Interval Timer Plus sells 1 one-off in-app purchase and Justfit sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Interval Timer Plus against 5.0 for Justfit. That said, the two scores are not equally well evidenced: Interval Timer Plus has 6.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 95% of Interval Timer Plus's written reviews are positive against 100% of Justfit's.

UpkeepUpdate frequency

Interval Timer Plus ships an update every 2 months, Justfit every 3 days. The most recent releases landed on November 5, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Interval Timer Plus versus Justfit: the parameters behind the verdict, then further details
ParameterInterval Timer PlusJustfit
PriceFreeFree
Rating4.9 (6.4K ratings)5.0 (1 ratings) — better
Positive reviews95.2% of reviews100.0% of reviews — better
Number of ratings6.4K — better1
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS15.015.0
Further details — not scored
Size24 MB116 MB
Age rating4+4+
DeveloperSu-Au HwangFerda Nahit Fidanci

Customer experience

Interval Timer Plus

All ratings6,252 ratings
Positive97.4%
Neutral1.1%
Negative1.5%
Written reviews687 reviews
Positive95.2%
Neutral2.0%
Negative2.8%

Justfit

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

Bugs and requests

Interval Timer Plus

Reported bugs

1 issue
  • Audio alerts not working when app is in the background

Requested features

2 requests
  • Support for Apple Watch integration
  • Ability to delete saved workouts

Justfit

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Interval Timer Plus

One-time1
  • Remove Ads$2.99
5 purchases

Justfit

Subscriptions3
  • Monthly$2.991 Month
  • Annual7 Days trial$14.991 Year
  • Justfit Pro Annual1 Year trial$14.991 Year
One-time2
  • Justfit Pro Lifetime$22.99
  • Lifetime access$29.99

Questions

Is Interval Timer Plus free?
Interval Timer Plus is free to download, with in-app purchases available.
Is Justfit free?
Justfit is free to download, with in-app purchases available.
Which has better reviews, Interval Timer Plus or Justfit?
Justfit is rated higher. Interval Timer Plus averages 4.9 out of 5 from 6.4K ratings, while Justfit averages 5.0 from 1 ratings.
Do Interval Timer Plus or Justfit have ads?
Justfit shows ads; Interval Timer Plus does not.
Which is updated more often, Interval Timer Plus or Justfit?
Interval Timer Plus ships an update every 2 months, and Justfit every 3 days. Most recently, Interval Timer Plus was updated on November 5, 2026 and Justfit on November 3, 2026.

Other comparisons