Comparison

Interval Timer vs BoxBell

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

BoxBell

Features
Read full description

Pay once. No ads. No subscription. No account. Ever. BoxBell is a boxing round timer that does one job properly. Set three numbers — rounds, round length, rest length — hit START, and train. The countdown fills the screen so you can read it from across the gym: green for work, red for rest. A real boxing bell rings every round in and every round out, and a wooden clacker warns you at the last 10 seconds. FREE, FOREVER · Classic 3:00 rounds with 1:00 rest, any number of rounds · The full-screen countdown, the real bell, the 10-second warning · A 10-second prep countdown before round one · Bell volume, haptics, sounds on or off · No ads. Not now, not later. BOXBELL PRO — ONE PAYMENT, US$5.99 · Custom round and rest lengths · Saved presets · Sound packs — Deep and Bright bells alongside Classic · Voice round announcements One payment. Yours forever. No subscription, no renewal, nothing to cancel. (US price; your store shows your local price.) IT DOESN'T DIE MID-ROUND Keeps running with the screen locked, in the background, with your music playing. The bell ducks your music for a moment, then hands it straight back. The bell rings even with the silent switch on. The clock is built on elapsed time, not ticks, so it can't drift or skip while your phone sleeps. WHO IT'S FOR Boxing, kickboxing, Muay Thai, MMA. Shadowboxing, heavy bag, pad work, sparring rounds. HIIT and circuit work too — any interval that needs a bell and a number you can read from the floor. WHAT IT DOESN'T DO No workout logging. No coaching content. No social feed. No account, no sign-up, no email. No ads, and no ad identifiers in the app at all. It sends crash reports and basic usage counts so I can fix what breaks — that's the whole list, and it's in the privacy policy. Built by one person who got tired of paying for a timer twice.

Screenshots

Interval Timer4 screens
BoxBell4 screens

Verdict

The call

The clearest difference is ads: BoxBell at none against Interval Timer's shown. BoxBell also leads on update cadence (weekly vs every 2 months). Interval Timer's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 15.0). On price and in-app purchases 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 and BoxBell sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Timer ships an update every 2 months, BoxBell weekly. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Timer versus BoxBell: the parameters behind the verdict, then further details
ParameterInterval TimerBoxBell
PriceFreeFree
Rating4.9 (250 ratings) — better—
Positive reviews84.1% of reviews—
Number of ratings250 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size12 MB30 MB
Age rating4+4+
DeveloperYosyp HameliakNurshat Bakytzhan

Bugs and requests

Interval Timer

Reported bugs

9 issues
  • App pauses when phone is locked
  • Sound notifications are inconsistent
  • App doesn't run in background
  • Watch app not opening or syncing
  • In-app purchase issues
Show 4 more
  • Timer not counting when phone is locked
  • Voice/sound stops during exercises
  • Incorrect number of sets displayed
  • App crashes or freezes

Requested features

12 requests
  • Option for different/upbeat voice
  • Ability to reorder saved timers
  • Larger font size option
  • Vibrate option
  • Naming individual sets/exercises
Show 7 more
  • Audio configuration for set completion
  • Syncing workouts with health apps
  • Option to keep app running when phone is locked
  • Customizable warm-up per saved timer
  • Option for giant font size for numbers
  • Ability to move saved timers
  • More sound options

BoxBell

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Interval Timer

One-time1
  • Remove Ads$4.99
1 purchases

BoxBell

One-time1
  • BoxBell Pro$5.99

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is BoxBell free?
BoxBell is free to download, with in-app purchases available.
Do Interval Timer or BoxBell have ads?
Interval Timer shows ads; BoxBell does not.
Which is updated more often, Interval Timer or BoxBell?
Interval Timer ships an update every 2 months, and BoxBell weekly. Most recently, Interval Timer was updated on November 3, 2026 and BoxBell on October 29, 2026.

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