Comparison

Justfit vs HIIT Timer

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

Head to head
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

About

HIIT Timer

Features
Read full description

Train smarter, not harder — with your personal interval trainer. Build your perfect interval timer for HIIT, boxing, or strength & cardio training. Customize every detail — from sets and rest to sounds and colors — for your ideal rhythm. Features • Custom Workout Setup – Freely adjust the number of sets, workout and rest durations, and round counts. • Fully Personalizable – Rename stages, assign colors, and fine-tune timing for each phase. • Clean, Distraction-Free Interface – Focus only on your workout without unnecessary elements. • Dark & Light Modes – Switch easily based on your environment or time of day. • Alarm Sound Options – Choose from multiple clear tones or add your own custom sounds. • Background Music Compatibility – Alarms work seamlessly with your favorite playlists. • Save Unlimited Profiles – Store all your routines and access them anytime. Clarity, rhythm, and control — everything you need to stay consistent and motivated. Start now. Train your way.

Screenshots

Justfit4 screens
HIIT Timer4 screens

Verdict

The call

The clearest difference is ads: HIIT Timer at none against Justfit's shown. HIIT Timer also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, 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. Justfit sells 5 in-app purchases, starting at $2.99 per month and HIIT Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Justfit ships an update every 3 days, HIIT Timer weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Justfit versus HIIT Timer: the parameters behind the verdict, then further details
ParameterJustfitHIIT Timer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 days — betterWeekly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size116 MB44 MB
Age rating4+4+
DeveloperFerda Nahit FidanciJunhyong Park

In-app purchases

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
1 purchases

HIIT Timer

One-time1
  • Pro Upgrade$1.99

Questions

Is Justfit free?
Justfit is free to download, with in-app purchases available.
Is HIIT Timer free?
HIIT Timer is free to download, with in-app purchases available.
Do Justfit or HIIT Timer have ads?
Justfit shows ads; HIIT Timer does not.
Which is updated more often, Justfit or HIIT Timer?
Justfit ships an update every 3 days, and HIIT Timer weekly. Most recently, Justfit was updated on October 30, 2026 and HIIT Timer on October 25, 2026.

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