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 app provides a customizable timer for high-intensity interval training (HIIT), Tabata, and other workout styles. It offers clear visual cues and sound notifications to guide users through work and rest periods, allowing them to focus on their exercise. Users can save routines, set reminders, and integrate with music playback.

Highlights
  • Customizable work and rest intervals
  • Sound cues for phase transitions
  • Background operation
  • Landscape mode support
  • Save custom routines
  • Workout reminders
  • Clear phase color indicators
Features
Read full description

Set your work and rest intervals, press start, and focus on your workout. PureHIIT is a simple timer for HIIT, Tabata, EMOM, circuits, and boxing rounds. • Adjust work, rest, and round settings to suit your session. • Follow sound cues as you move from one phase to the next. • Keep listening to your music while you train. • Use the timer in the background or in landscape mode. • Start with a prebuilt routine or save your own. • Set workout reminders to help you keep a routine. Getting started is simple: choose a routine or set your intervals, check the number of rounds, and press start. Clear phase colors help you see when to work and when to rest. Free to download, with optional in-app purchases. Apple Watch features require Premium. On Apple Watch, the app integrates with Health to record heart rate and energy used. Make time for your next workout with PureHIIT. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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. Interval Timer's advantage is device support (4 vs 2). On price, update cadence, in-app purchases and iOS requirement 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 7 in-app purchases, starting at $3.99 per month 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 fortnightly, BoxBell weekly. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Interval Timer versus BoxBell: the parameters behind the verdict, then further details
ParameterInterval TimerBoxBell
PriceFreeFree
Rating4.8 (297 ratings) — better—
Positive reviews73.3% of reviews—
Number of ratings297 — better—
Update frequencyFortnightlyWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size45 MB30 MB
Age rating+44+
DeveloperMiklos PavelNurshat Bakytzhan

Bugs and requests

Interval Timer

Reported bugs

2 issues
  • Advertisements still present after paying for removal
  • App requires premium to start timer (recent change)

Requested features

8 requests
  • Remove the cap on rounds
  • Add a background click feature (e.g., every second)
  • More sound options
  • Option for more than one workout
  • Add a halfway beep
Show 3 more
  • Add a countdown for the workout interval
  • Beep once at 15 seconds for a 30-second workout interval
  • Countdown the last 3 seconds of a workout interval

BoxBell

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Interval Timer

Subscriptions2
  • Monthly$3.991 Month
  • Yearly7 Days trial$19.991 Year
One-time5
  • Remove Ads$1.99
  • Custom sounds$1.99
  • Premium features$4.99
Show 2 more
  • Premium features$9.99
  • Premium features$14.99
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 fortnightly, and BoxBell weekly. Most recently, Interval Timer was updated on November 2, 2026 and BoxBell on October 29, 2026.

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