Comparison

Tempo Interval vs Box Timer

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

Head to head
About

Tempo Interval

This interval timer app offers guided routines for mobility, breathwork, and automatic training logs. It features lock screen control and subtle haptic feedback for seamless workouts. Enjoy customizable sound modes and privacy with no account or data collection.

Highlights
  • Interval timer with customizable cycles
  • Built-in mobility and breathwork routines
  • Automatic training log with streak tracking
  • Lock screen and Dynamic Island controls
  • Haptic feedback for phase changes
  • Multiple sound modes for different environments
Features
Read full description

Tempo is an interval timer with built-in mobility routines, breathwork, and an automatic training log. Set up a session in seconds, lock your phone, and let the timer run. WHAT'S INSIDE - Super Cycle — one interval repeated for N rounds - Cycle — work + rest, looped - Workout — guided bodyweight sequence - Flexibility + Mobility — joint mobility and recovery routines - Wind Down — a short breathing routine before sleep LOCK SCREEN + DYNAMIC ISLAND The timer runs as a Live Activity. Pause and resume from the lock screen or Dynamic Island without unlocking the phone or opening the app. SOUND + HAPTICS Subtle haptics on every phase change so you can train without looking at the screen. Three sound modes — Studio, Gym, Boxing — for different environments. Plays alongside Spotify and Apple Music without interrupting them. TRAINING LOG Every session you complete is logged automatically. Track your streak, see your last 28 days at a glance, and add workouts you did outside the app manually. DARK MODE Toggle in Settings. PRIVACY No accounts. No analytics. No data collection. Everything you log stays on your device. Tempo Interval — by Mehdi Naqvi.

About

Box Timer

Features
Read full description

FKN Timer is a training timer built around your own routine — from technical drills and conditioning to full rounds on the bag, pads or mat. Build a workout that matches how you train, start it in one tap, and keep your next move clear while you work. BUILD YOUR SESSION • Create and save workouts for boxing, Muay Thai, kickboxing, MMA, BJJ, wrestling and more • Combine warm-ups, drills, rounds, rest, cooldowns and repeat blocks • Browse exercises by discipline, set durations and repetitions, then arrange the session your way • Rename, duplicate and personalise workouts with your own icon and colour MAKE IT PERSONAL • Create custom exercises for your own drills and training methods • Add an icon, colour, description and optional photo or video link • Keep custom exercises alongside the built-in catalogue and reuse them in any workout STAY IN THE ROUND • See the current exercise, what comes next and the remaining workout time at a glance • Pause, resume, restart, skip forward or move back through a session • Use sound assistance and choose your preferred round bell • Keep an active workout visible on the Lock Screen, Live Activity and Dynamic Island • Control your session from Home Screen and Lock Screen widgets FINISH WITH THE NUMBERS • Review completed segments, total time and skipped time after each workout • Get an estimated calorie burn • Unlock and apply new timer styles as you train From shadowboxing and bag work to grappling drills and conditioning, FKN Timer gives your training a structure that is yours — then keeps you focused until the round is done.

Screenshots

Tempo Interval4 screens
Box Timer4 screens

Verdict

The call

The clearest difference is update cadence: Tempo Interval at every 4 days against Box Timer's every 9 days. Tempo Interval also leads on iOS requirement (16.2 vs 26.0). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Tempo Interval ships an update every 4 days, Box Timer every 9 days. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
Tempo Interval versus Box Timer: the parameters behind the verdict, then further details
ParameterTempo IntervalBox Timer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 days — betterEvery 9 days
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS16.2 — better26.0
Further details — not scored
Size2 MB21 MB
Age rating4+4+
DeveloperMehdi Akbar NaqviSvyatoslav Boiko

In-app purchases

None

Tempo Interval

No in-app purchases

None

Box Timer

No in-app purchases

Questions

Is Tempo Interval free?
Tempo Interval is free to download, with no in-app purchases.
Is Box Timer free?
Box Timer is free to download, with no in-app purchases.
Do Tempo Interval or Box Timer have ads?
Neither Tempo Interval nor Box Timer shows ads.
Which is updated more often, Tempo Interval or Box Timer?
Tempo Interval ships an update every 4 days, and Box Timer every 9 days. Most recently, Tempo Interval was updated on October 7, 2026 and Box Timer on October 1, 2026.

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