Comparison

Interval 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

This interval timer is designed for HIIT and interval training. Easily set work and rest periods, sets, and rounds to guide your workouts. It supports background operation and music playback, with an Apple Watch companion app for heart rate monitoring.

Highlights
  • Customizable work and rest periods
  • Set number of sets and rounds
  • Background operation support
  • Music playback compatibility
  • Apple Watch integration
  • Heart rate monitoring (Apple Watch)
Features
Read full description

This app is handy interval timer that helps you keep track of your work and rest periods during your HIIT interval training and workouts. The application is very easy to use, enter the Work, Rest, Sets, Rounds and start workout. You can listen to music during workouts or use the timer in the background. There is also app on the Apple Watch that will allow you to monitor your heart rate during workouts. Apple Watch app features: - iCloud sync with iPhone - integration with the Health app - monitoring heart rate during workouts

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 Timer4 screens
GRIT4 screens

Verdict

The call

The clearest difference is in-app purchases: GRIT at none against Interval Timer's 1. GRIT also leads on ads (none vs shown) and update cadence (every 2 days vs every 2 months). Interval Timer's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 18.0). On price 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 sells 1 one-off in-app purchase. GRIT asks for nothing beyond the download.

UpkeepUpdate frequency

Interval Timer ships an update every 2 months, GRIT every 2 days. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 5 level
Interval Timer versus GRIT: the parameters behind the verdict, then further details
ParameterInterval TimerGRIT
PriceFreeFree
Rating4.9 (246 ratings) — better—
Positive reviews83.5% of reviews—
Number of ratings246 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size12 MB17 MB
Age rating4+4+
DeveloperYosyp HameliakAndrew Dunn

In-app purchases

1 purchases

Interval Timer

One-time1
  • Remove Ads$4.99
None

GRIT

No in-app purchases

Questions

Is Interval Timer free?
Interval 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 or GRIT have ads?
Interval Timer shows ads; GRIT does not.
Which is updated more often, Interval Timer or GRIT?
Interval Timer ships an update every 2 months, and GRIT every 2 days. Most recently, Interval Timer was updated on October 19, 2026 and GRIT on October 13, 2026.

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