Comparison

RoundBell vs Tempo Interval

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

Head to head
About

RoundBell

This interval timer app is designed for boxing, kickboxing, and martial arts training. It offers customizable round times, audio cues, and voice alerts to keep you on track during workouts. Save your preferred settings for quick access and enjoy a clear, large display visible from a distance.

Highlights
  • Customizable round and interval times
  • Gong and horn sound alerts
  • Audio countdowns and voice notifications
  • Save and load custom presets
  • Haptic feedback for notifications
  • Screen wake lock for continuous display
Features
Read full description

RoundBell is the ultimate interval timer for boxing, kickboxing, and martial arts training. FEATURES: - Round Timer: Customize round time, interval time, and total rounds - Gong & Horn: Round start/end gong sounds and warning horn before round ends - Countdown Beeps: Audio countdown for the final 3 seconds - Voice Alerts: "1 minute remaining" and "30 seconds remaining" voice notifications - 6 Built-in Presets: Beginner 1min, Boxing 3min, Kickboxing 2min, HIIT 30s, MMA 5min, and Tabata 20/10 - Custom Presets: Save favorite settings and switch instantly - Training History: Review completed sessions, streaks, and total rounds - Apple Health: Optionally save completed workouts - Haptic Feedback: Vibration notifications when sound isn't enough - Screen Wake Lock: Screen stays on during your workout - Japanese/English support PERFECT FOR: - Boxing and kickboxing training - Pad work and heavy bag sessions - Sparring round management - HIIT and interval training Clean dark theme design with large, easy-to-read timer display - visible from across the gym.

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.

Screenshots

RoundBell3 screens
Tempo Interval4 screens

Verdict

The call

RoundBell and Tempo Interval are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

RoundBell ships an update every 6 days, Tempo Interval every 4 days. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

ScorecardNo meaningful differences
RoundBell versus Tempo Interval: the parameters behind the verdict, then further details
ParameterRoundBellTempo Interval
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 6 daysEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone
Requires iOS17.016.2 — better
Further details — not scored
Size3 MB2 MB
Age rating4+4+
DeveloperStarcrown IncMehdi Akbar Naqvi

Customer experience

RoundBell

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Tempo Interval

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

RoundBell

No in-app purchases

None

Tempo Interval

No in-app purchases

Questions

Is RoundBell free?
RoundBell is free to download, with no in-app purchases.
Is Tempo Interval free?
Tempo Interval is free to download, with no in-app purchases.
Do RoundBell or Tempo Interval have ads?
Neither RoundBell nor Tempo Interval shows ads.
Which is updated more often, RoundBell or Tempo Interval?
RoundBell ships an update every 6 days, and Tempo Interval every 4 days. Most recently, RoundBell was updated on October 19, 2026 and Tempo Interval on October 7, 2026.

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