Comparison

Interval Timer □ HIIT Timer vs GRIT

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

Head to head
About

Interval Timer □ HIIT Timer

Create custom workout timers with adjustable intervals for exercise and rest. Track your progress with detailed history and statistics, and repeat past workouts easily. Enjoy audio cues without interrupting your music.

Highlights
  • Customizable intervals
  • Workout and rest timers
  • Voice or beep guides
  • Background audio support
  • Workout history and statistics
  • Repeat previous workouts
Features
Read full description

A simple and beautiful interval timer. 1. Drag to set your custom intervals for workout, rest, rounds, etc 2. Tap to start. Interval Timer doesn't interfere with your music or other apps: ∙ Listen to your music apps while you workout. ∙ Voice or beep guides for every workout. ∙ You can leave the app and still listen to the audio guides, in order to follow a workout you found online. And no need to manually record your workouts: ∙ Detailed history and statistics pages to track your progress. ∙ Repeat a previous workout from your history, so you don't need to set it again. If you have any ideas for how to improve the app, just tap "Contact Support' inside the app and let us know! We are always trying to improve Interval Timer This app includes an optional auto-renewable subscription (Premium Pass): Premium Pass beings with a free trial period, then an auto-renewable monthly subscription when trial ends. Payment will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Any unused portion of the free initial period will be forfeited when you purchase a subscription. Privacy Policy: https://float.support/interval-timer/privacy Terms of Use: https://float.support/interval-timer/terms

About

GRIT

Features
Read full description

GRIT is a fast, focused WOD timer for functional fitness, garage gyms, coaches and athletes. Choose the format, set your workout and start. GRIT includes: • For Time • AMRAP • EMOM • Tabata • Custom work/rest intervals • Time-of-day clock BUILD COMPLETE WORKOUTS Combine For Time, AMRAP, EMOM, Tabata, Intervals and Rest blocks into one session. Reorder blocks, set each phase and run the complete workout without rebuilding the clock between sections. BUILT FOR THE GYM FLOOR Use GRIT on iPhone or iPad, or turn your device sideways for a large, high-contrast workout clock. Clear work, rest and countdown colors help you understand the phase while you are moving, and distinct audio cues keep the session on track. A connected AirPlay display can show a synchronized, read-only timer. FAST, FLEXIBLE SETUP Set the time cap, duration, rounds, work, rest and count-in for the workout in front of you. Fully custom sub-minute timers are supported, and the core timer modes are available without a subscription. GRIT WORKOUT LIBRARIES AND HISTORY Search GRIT Benchmarks and GRIT Tribute Workouts by workout or movement. Save your result, mark RX or scaled, add notes and keep your recent sessions on your phone. OPTIONAL APPLE HEALTH MATCHING If you choose to grant access, GRIT can match a saved result with a nearby Apple Health workout from your Apple Watch. Health access is optional. FREE AND PRIVATE BY DESIGN No account. No subscription. No advertising. Your saved results stay on your device. If you choose Send to a mate, the workout definition is uploaded to create a shareable link. Your personal result and session notes are not shared. Download GRIT, choose a mode and start the clock.

Screenshots

Interval Timer □ HIIT Timer4 screens
GRIT4 screens

Verdict

The call

The clearest difference is in-app purchases: GRIT at none against Interval Timer □ HIIT Timer's 5. GRIT also leads on update cadence (every 2 days vs every 5 weeks). Interval Timer □ HIIT Timer's advantage is iOS requirement (15.6 vs 18.0). On price, ads 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. Interval Timer □ HIIT Timer sells 5 in-app purchases, starting at $1.99 per month. GRIT asks for nothing beyond the download.

UpkeepUpdate frequency

Interval Timer □ HIIT Timer ships an update every 5 weeks, GRIT every 2 days. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
Interval Timer □ HIIT Timer versus GRIT: the parameters behind the verdict, then further details
ParameterInterval Timer □ HIIT TimerGRIT
PriceFreeFree
Rating4.8 (86K ratings) — better—
Positive reviews60.7% of reviews—
Number of ratings86K — better—
Update frequencyEvery 5 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.0
Further details — not scored
Size34 MB17 MB
Age rating4+4+
DeveloperFloat Tech, LLCAndrew Dunn

Bugs and requests

Interval Timer □ HIIT Timer

Reported bugs

3 issues
  • Timer not always accurate
  • Favorites/saved workouts feature not working
  • Inconsistent behavior when pausing/resuming

Requested features

3 requests
  • Ability to save and name custom workouts
  • More flexibility in exercise/rest time settings
  • Option to adjust volume of voice prompts

GRIT

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Interval Timer □ HIIT Timer

Subscriptions2
  • Premium Pass7 Days trial$1.991 Month
  • Premium Pass7 Days trial$2.991 Month
One-time3
  • Lifetime Pass$14.99
  • Lifetime Pass$19.99
  • Premium Forever Promo$29.99
None

GRIT

No in-app purchases

Questions

Is Interval Timer □ HIIT Timer free?
Interval Timer □ HIIT Timer is free to download, with in-app purchases available.
Is GRIT free?
GRIT is free to download, with no in-app purchases.
Do Interval Timer □ HIIT Timer or GRIT have ads?
Neither Interval Timer □ HIIT Timer nor GRIT shows ads.
Which is updated more often, Interval Timer □ HIIT Timer or GRIT?
Interval Timer □ HIIT Timer ships an update every 5 weeks, and GRIT every 2 days. Most recently, Interval Timer □ HIIT Timer was updated on October 20, 2026 and GRIT on October 13, 2026.

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