Comparison

TimerFlex vs Boxing Timer · Rocky

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

Head to head
About

TimerFlex

This app uses AI to instantly create custom workout timers from whiteboard photos or text descriptions. It offers various pre-built formats, real-time heart rate tracking, and detailed workout history. Advanced features like Apple Watch sync and unlimited AI generation are available with a subscription.

Highlights
  • AI workout generation from photos/text
  • Apple Watch sync with haptic cues
  • Real-time heart rate and calorie tracking
  • 5 purpose-built workout formats (For Time, AMRAP, EMOM, Tabata, Custom)
  • 1RM calculator
  • Voice coach and audio cues
  • Workout history and monthly stats
Features
Read full description

TIMERFLEX – INTERVAL & WOD TIMER The smartest workout timer for serious athletes. Snap a photo of any whiteboard. Describe your session in plain text. TimerFlex builds the entire workout — rounds, intervals, rest — instantly with AI. ——— AI WORKOUT GENERATOR Point your camera at a gym whiteboard or type your workout. AI reads it and sets up the complete timer in seconds. No programming. No fumbling. Just press go. APPLE WATCH SYNC Full timer on your wrist the moment you start. See rounds, phases, and time remaining without touching your phone. Haptic cues keep you on pace. Start and pause from your wrist. REAL-TIME HEART RATE & CALORIES Live BPM and active energy during every session via HealthKit. Know exactly how hard you're working without leaving the timer. 5 PURPOSE-BUILT FORMATS Not a generic countdown. Each format knows exactly what it's doing: • For Time — race the clock, finish as fast as possible • AMRAP — maximum rounds in a fixed window • EMOM — new movement every minute, automatically • Tabata — 20s work, 10s rest, 8 rounds, handled • Custom — chain any combination into one session No manual resets. No counting rounds in your head. TimerFlex handles all of it. 1RM CALCULATOR Built into every setup screen. Enter your max and get instant percentage breakdowns for every lift. VOICE COACH & AUDIO CUES Countdown calls, phase announcements, halfway alerts. Eyes on your reps, not your screen. LARGE DISPLAY & LANDSCAPE MODE Numbers big enough to read from across the gym. Rotate for maximum visibility mid-set. WORKOUT HISTORY & MONTHLY STATS Every session logged automatically with mood, duration, and notes. Monthly Wrapped gives you your longest streak, total time, and favorite format so you can see your training compound over time. SAVE, FAVORITE & REBUILD Save any workout as a template. Favorite your go-to sessions. Retry any past workout in one tap. NOTES & PHOTO ATTACHMENTS Attach whiteboard photos or text notes to any session. Your workout context, always with your data. EXPORT & BACKUP Export your full history as CSV or JSON. Your data, your way, always portable. ——— BUILT FOR • CrossFit WODs & box sessions • HYROX training blocks • HIIT & interval circuits • Tabata (20s work / 10s rest) • EMOM (Every Minute on the Minute) • AMRAP (As Many Rounds As Possible) • Home gym, garage & travel workouts • Benchmark WODs: Murph, Cindy, Fran ——— TIMERFLEX PRO Unlock unlimited AI Generator, Custom Workout Builder, premium voices and sounds, heart rate insights, Monthly Wrapped, photo notes, workout export, Apple Watch sync, and zero ads. Monthly · Quarterly · Annual — your choice. ——— Privacy Policy: https://plainworks.co/timerflex/privacy-policy Terms of Use: https://plainworks.co/timerflex/terms

About

Boxing Timer · Rocky

This interval timer app is designed for various training styles, including boxing, HIIT, and combat sports. It features a customizable interface with a modern aesthetic and clear visual cues for work and rest periods. Track your progress with detailed statistics and history while focusing on your workout.

Highlights
  • Professional boxing interval timer
  • Customizable rounds, work, and rest intervals
  • Quick presets for Boxing, MMA, and Tabata
  • Works in the background
  • Progress tracking with stats and history
  • Sleek 'Liquid Glass' Dark Mode interface
Features
Read full description

Train with structure. Stay focused on every round. Rocky is a boxing round and interval timer built for fighters, coaches, and anyone training at home or in the gym. Set up a session in seconds, press start, and let clear bells and audio alerts guide you through work and rest. BUILT FOR COMBAT TRAINING • Boxing and heavy bag workouts • MMA, Muay Thai, kickboxing and BJJ • Sparring, shadowboxing and pad work • HIIT, Tabata and circuit training EVERYTHING YOU NEED • Customize rounds, work time, rest time and preparation • Hear clear audio alerts without watching the screen • Keep the timer running in the background or with the screen locked • Continue listening to your music while you train • Save favorite workout configurations for faster starts • See workout history, statistics and training streaks • Follow a large countdown with clear work and rest colors Rocky replaces a physical gym timer with a simple timer you can always carry. It works for quick solo sessions, structured fight training, coaching and group workouts. Set your rounds. Start the timer. Focus on training. Rocky Pro unlocks unlimited workouts, complete history and statistics, plus all premium features. Monthly and lifetime purchase options may be available. Privacy Policy: https://www.studiojb.app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

TimerFlex4 screens
Boxing Timer · Rocky4 screens

Verdict

The call

The clearest difference is rating: Boxing Timer · Rocky at 4.8 against TimerFlex's 3.0. Boxing Timer · Rocky also leads on ads (none vs shown) and ratings volume (37 vs 2). TimerFlex's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and monetization model 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. TimerFlex sells 7 in-app purchases, starting at $1.49 per 7 days and Boxing Timer · Rocky sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Boxing Timer · Rocky holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Boxing Timer · Rocky has 37 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

TimerFlex ships an update weekly, Boxing Timer · Rocky every 2 weeks. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

Scorecard5 real differences · 5 level
TimerFlex versus Boxing Timer · Rocky: the parameters behind the verdict, then further details
ParameterTimerFlexBoxing Timer · Rocky
PriceFreeFree
Rating3.0 (2 ratings)4.8 (37 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings237 — better
Update frequencyWeekly — betterEvery 2 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS26.018.0 — better
Further details — not scored
Size79 MB19 MB
Age rating12+4+
DeveloperPlainworks Teknoloji Limited Sirketijean-baptiste delcros

Customer experience

TimerFlex

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews12 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Boxing Timer · Rocky

All ratings37 ratings
Positive94.6%
Neutral0.0%
Negative5.4%

In-app purchases

7 purchases

TimerFlex

Subscriptions5
  • Weekly subscription$1.497 Days
  • TimerFlex Monthly$3.491 Month
  • 3 Months subscription$8.493 Months
Show 2 more
  • TimerFlex Annual Offer$12.991 Year
  • TimerFlex Annual3 Days trial$24.991 Year
One-time2
  • Ad-Free$0.99
  • TimerFlex Lifetime$34.99
4 purchases

Boxing Timer · Rocky

Subscriptions2
  • Monthly plan7 Days trial$2.991 Month
  • Weekly plan$6.997 Days
One-time2
  • Lifetime Access$9.99
  • Lifetime Access$19.99

Questions

Is TimerFlex free?
TimerFlex is free to download, with in-app purchases available.
Is Boxing Timer · Rocky free?
Boxing Timer · Rocky is free to download, with in-app purchases available.
Which has better reviews, TimerFlex or Boxing Timer · Rocky?
Boxing Timer · Rocky is rated higher. TimerFlex averages 3.0 out of 5 from 2 ratings, while Boxing Timer · Rocky averages 4.8 from 37 ratings.
Do TimerFlex or Boxing Timer · Rocky have ads?
TimerFlex shows ads; Boxing Timer · Rocky does not.
Which is updated more often, TimerFlex or Boxing Timer · Rocky?
TimerFlex ships an update weekly, and Boxing Timer · Rocky every 2 weeks. Most recently, TimerFlex was updated on September 21, 2026 and Boxing Timer · Rocky on September 17, 2026.

Other comparisons