Comparison

The Wolff Timer vs Strike Timer Interval Training

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

Head to head
About

The Wolff Timer

Features
Read full description

The Wolff Timer is a beautifully designed interval timer built for circuit training, HIIT, Tabata, and any workout that needs precise timing. SIMPLE & POWERFUL Set your work time, rest time, rounds, and sets. Tap start. That's it. No complicated menus, no subscriptions, no ads. LIVE ACTIVITY See your timer right on your Lock Screen and Dynamic Island. Always know what's coming next without unlocking your phone. WORKS WITH YOUR MUSIC Audio cues automatically lower your music volume during beeps, then restore it. Your Spotify, Apple Music, or podcasts keep playing. BACKGROUND RELIABLE The timer keeps running accurately even when your phone is locked or you're using other apps. Never miss a transition. PERFECT FOR • Circuit training • HIIT workouts • Tabata protocols • Boxing rounds • CrossFit WODs • Yoga flows • Any interval-based training FEATURES • Customizable work and rest intervals • Multiple sets with rest between sets • Live Activity on Lock Screen & Dynamic Island • Audio cues that respect your music • Clean, distraction-free interface • No account required • No subscription • No ads Built by someone who actually uses it.

About

Strike Timer Interval Training

Features
Read full description

Strike Timer is a precision interval training app built for combat sports athletes and fitness enthusiasts. Create custom round timers with work/rest phases, voice coaching cues, and premium sound packs. Track your training history, sync workouts to Apple Health, and control your timer from your Apple Watch. Features: - Customizable round timers with work, rest, prep & cooldown phases - Built-in boxing, Muay Thai, Tabata & HIIT presets - Voice coaching cues (male & female) - Apple Watch companion app - Apple Health integration - Workout history & streak tracking - Premium sound effects - Custom color themes - Shake to pause — hands-free control No ads. No tracking. Just a better timer. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://striketimer.com/privacy

Screenshots

The Wolff Timer2 screens
Strike Timer Interval Training4 screens

Verdict

The call

The clearest difference is in-app purchases: The Wolff Timer at none against Strike Timer Interval Training's 1. Strike Timer Interval Training's advantage is iOS requirement (15.1 vs 17.2). On price, update cadence, 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. Strike Timer Interval Training sells 1 in-app purchase, starting at $14.99 per year. The Wolff Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on September 11, 2026.

Scorecard2 real differences · 4 level
The Wolff Timer versus Strike Timer Interval Training: the parameters behind the verdict, then further details
ParameterThe Wolff TimerStrike Timer Interval Training
PriceFreeFree
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPod, Apple Watch — better
Requires iOS17.215.1 — better
Further details — not scored
Size3 MB47 MB
Age rating4+4+
DeveloperJimmi WolffShannon Kempenich

In-app purchases

None

The Wolff Timer

No in-app purchases

1 purchases

Strike Timer Interval Training

Subscriptions1
  • Strike Timer Pro$14.991 Year

Questions

Is The Wolff Timer free?
The Wolff Timer is free to download, with no in-app purchases.
Is Strike Timer Interval Training free?
Strike Timer Interval Training is free to download, with in-app purchases available.
Do The Wolff Timer or Strike Timer Interval Training have ads?
Neither The Wolff Timer nor Strike Timer Interval Training shows ads.
Which is updated more often, The Wolff Timer or Strike Timer Interval Training?
The Wolff Timer ships an update every 3 weeks, and Strike Timer Interval Training every 3 weeks. Most recently, The Wolff Timer was updated on September 11, 2026 and Strike Timer Interval Training on September 11, 2026.

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