Comparison

GRIT vs Interval Timer by STRNTH

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

Head to head
About

GRIT

Features
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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: โ€ข For Time โ€ข AMRAP โ€ข EMOM โ€ข Tabata โ€ข Custom work/rest intervals โ€ข 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.

About

Interval Timer by STRNTH

Features
Read full description

Interval Timer by STRNTH is a free interval timer for HIIT, Tabata, EMOM, AMRAP, boxing rounds, running intervals, stretching and more. Build any timer you want with no fixed structure, then run it hands-free and read it from across the room. BUILD ANY TIMER - Add as many steps as you like, each with its own label, duration, colour, sound and voice. - Group steps into repeat blocks so a round loops as many times as you need. - Link separate timers together to chain a warm-up, workout and cool-down into one session. - Start from a template: Couch to 5K, Tabata, HIIT, 7 minute workout, EMOM, AMRAP, boxing rounds, Pomodoro, box breathing and full body stretch. RUN IT HANDS-FREE - A giant readout inside a progress ring, sized to read from across the gym. - Full-screen colour per step so you know your phase at a glance. - Voice reads each step and announces what is next before it arrives. - Sound cues on the last three seconds, plus beep, go, switch, rest, bell, horn, gong and whistle tones. Import your own sounds too. - Optional spoken 3-2-1 countdown, a cadence metronome from 60 to 180 BPM and haptic feedback. - Choose what the screen shows: interval time, total time, interval count, the clock or heart rate. MORE TOOLS - A countdown tab with quick presets for a fast single timer. - A stopwatch with laps that highlight your fastest and slowest split. - Light and dark themes and your own custom step colours. - Share a timer as a link or a file, and import timers others send you. ACROSS YOUR DEVICES - An Apple Watch companion runs your timers on the wrist with colour and haptics. - Pair a Bluetooth heart rate strap to see live BPM, zones and more while you train. - Save finished sessions to Apple Health as workouts. - Back up your timers to your private iCloud. FREE, WITH A ONE-TIME UPGRADE Interval Timer is free and supported by ads. A single 9.99 purchase removes ads for good. No accounts, no subscriptions, no cloud sign-in. Your timers stay on your device. Part of the STRNTH family of training apps.

Screenshots

GRIT4 screens
Interval Timer by STRNTH4 screens

Verdict

The call

The clearest difference is in-app purchases: GRIT at none against Interval Timer by STRNTH's 1. GRIT also leads on ads (none vs shown) and update cadence (every 2 days vs every 10 days). Interval Timer by STRNTH's advantage is device support (4 vs 2) and iOS requirement (15.1 vs 18.0). On price there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Interval Timer by STRNTH sells 1 one-off in-app purchase. GRIT asks for nothing beyond the download.

UpkeepUpdate frequency

GRIT ships an update every 2 days, Interval Timer by STRNTH every 10 days. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

Scorecard5 real differences ยท 1 level
GRIT versus Interval Timer by STRNTH: the parameters behind the verdict, then further details
ParameterGRITInterval Timer by STRNTH
PriceFreeFree
Update frequencyEvery 2 days โ€” betterEvery 10 days
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch โ€” better
Requires iOS18.015.1 โ€” better
Further details โ€” not scored
Size17 MB55 MB
Age rating4+12+
DeveloperAndrew DunnNext Big Leap Ltd

In-app purchases

None

GRIT

No in-app purchases

1 purchases

Interval Timer by STRNTH

One-time1
  • Remove ads$9.99

Questions

Is GRIT free?
GRIT is free to download, with no in-app purchases.
Is Interval Timer by STRNTH free?
Interval Timer by STRNTH is free to download, with in-app purchases available.
Do GRIT or Interval Timer by STRNTH have ads?
Interval Timer by STRNTH shows ads; GRIT does not.
Which is updated more often, GRIT or Interval Timer by STRNTH?
GRIT ships an update every 2 days, and Interval Timer by STRNTH every 10 days. Most recently, GRIT was updated on October 13, 2026 and Interval Timer by STRNTH on October 5, 2026.

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