Comparison

Interval Timer vs Boulder Strength

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

Head to head
About

Interval Timer

Create custom interval timers for workouts, focus sessions, or meditation. Get audio, visual, and haptic cues to stay on track without watching the clock. Track performance and share timers with others.

Highlights
  • Customizable interval timers
  • Multiple intervals, rounds, warm-up, rest
  • Audio, visual, and haptic alerts
  • 14 ready-made presets
  • Performance tracking and lap recording
  • Timer sharing
  • Apple Watch sync
Features
Read full description

From the developer of Mila's Tools — Apple Staff Pick, 4.8* from 1,200+ reviews. BeepWatch is the interval timer trusted by athletes, coaches, and everyday users for over a decade. Build custom HIIT, Tabata, boxing, and circuit timers with multiple intervals, rounds, warm-up, and rest periods — then let audio beeps, visual cues, and haptic feedback keep you on track so you never have to watch the clock. APPLE HEALTH INTEGRATION Completed timers can save as workouts in Apple Health and contribute to your Activity Rings. Opt in once, tag the timers you want to track (HIIT, Boxing, Yoga, and more), and BeepWatch credits the rings — even when you start the timer on iPhone. Heart rate and active energy from your Apple Watch attach automatically. GET STARTED IN SECONDS Choose from 15 ready-made presets including HIIT, Tabata, Boxing Rounds, Pomodoro Focus, Meditation, and more. Or build your own timer in under a minute. CUSTOM INTERVAL TIMERS * Add as many intervals as you need, each with its own duration, name, sound, and warning * Set total rounds or run infinitely * Add warm-up time before your first interval * Add rest time between rounds * Count up or count down — six display modes to choose from AUDIO, VISUAL & HAPTIC ALERTS * Choose from beeps, buzzes, clicks, gongs, whistles, and more * Set warning alerts before an interval ends * Flash the screen on interval changes * Haptic vibration feedback * Independent volume control for interval and control sounds * Background tick audio to confirm your timer is running TRACK YOUR PERFORMANCE * Automatic and manual lap recording * View split times and deltas * Share lap data with your coach or training partner BEAUTIFUL THEMES & PROGRESS BARS * 20+ color themes including Neon, Aurora, and Sunset * Circle, rows, chronograph, and box progress indicators * Precision timing up to 3 decimal places APPLE WATCH * Full timer sync between iPhone and Apple Watch * Run timers independently on your wrist, or remote-control the timers on your iPhone * Workouts save to Apple Health from either device, with cross-device dedup so you never get double entries * Optimized Watch interface NOT JUST FOR WORKOUTS BeepWatch works for anything you time: Pomodoro focus blocks, study sprints, meditation, sport drills, public-speaking practice, recipe steps, and getting kids through morning routines. SHARE TIMERS * Share any timer via link or file * Recipients preview and import with one tap * Perfect for coaches, trainers, and workout groups NOW IN 12 LANGUAGES BeepWatch speaks Spanish, French, German, Japanese, Korean, Portuguese, Russian, Italian, Hindi, Indonesian, English, and Simplified Chinese. BeepWatch is the timer app you've been looking for! - - - - - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Boulder Strength

Features
Read full description

Boulder Strength is a training log built for climbers who care about finger strength, pulling power, and repeaters — not generic gym tracking. Train Build workouts exercise by exercise: max hangs, repeaters, weighted pulls, mobility, and more. Log working sets with the metrics that matter (load, reps, time, edges, grips). Exercise can track edge MM, grip attachments and grip variations, need to track an 8mm crimp? No problem. Optional last-session hints so you can match or nudge your previous protocol. Works offline; sign in to sync across devices. Progress See personal bests by exercise (weight, volume, hangs, repeaters) without drowning in duplicate rows. Weekly charts for hang time and pull peaks. Optional bodyweight-relative stats when you save weight at workout finish. Recovery Quick daily check-ins for soreness, sleep, and stress — turned into a simple readiness view. Readiness can link to finished sessions so you see how you felt on hard days. Accounts Sign in with Apple or Google — no extra passwords. Built for real sessions Dark, focused UI; collapsible blocks so long workouts stay scannable. Training and recovery notes in the app are for your own planning only — they are not medical advice.

Screenshots

Interval Timer4 screens
Boulder Strength4 screens

Verdict

The call

The clearest difference is update cadence: Interval Timer at every 4 days against Boulder Strength's every 3 months. Boulder Strength's advantage is iOS requirement (15.1 vs 18.6). 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. Interval Timer sells 4 in-app purchases, starting at $2.99 per month and Boulder Strength sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Timer ships an update every 4 days, Boulder Strength every 3 months. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 8 level
Interval Timer versus Boulder Strength: the parameters behind the verdict, then further details
ParameterInterval TimerBoulder Strength
PriceFreeFree
Rating4.8 (161 ratings) — better—
Positive reviews92.0% of reviews—
Number of ratings161 — better—
Update frequencyEvery 4 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.615.1 — better
Further details — not scored
Size20 MB36 MB
Age rating4+4+
DeveloperScott DeSapioDylan Stables

Bugs and requests

Interval Timer

Reported bugs

2 issues
  • Unlock Pro feature not working for some users
  • Timers getting deleted unexpectedly

Requested features

3 requests
  • Ability to save/load custom timer settings
  • Option to set countdown before timer starts
  • Integration with wearable devices

Boulder Strength

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Interval Timer

Subscriptions2
  • BeepWatch PRO Monthly$2.991 Month
  • BeepWatch PRO Annual$14.991 Year
One-time2
  • BeepWatch 2 PRO$0.99
  • BeepWatch PRO Lifetime$19.99
2 purchases

Boulder Strength

Subscriptions2
  • Monthly14 Days trial$3.991 Month
  • Annual14 Days trial$39.991 Year

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Boulder Strength free?
Boulder Strength is free to download, with in-app purchases available.
Do Interval Timer or Boulder Strength have ads?
Neither Interval Timer nor Boulder Strength shows ads.
Which is updated more often, Interval Timer or Boulder Strength?
Interval Timer ships an update every 4 days, and Boulder Strength every 3 months. Most recently, Interval Timer was updated on September 26, 2026 and Boulder Strength on September 21, 2026.

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