Comparison

Strike Timer Interval Training vs RoundFlow

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

Head to head
About

Strike Timer Interval Training

Features
Read full description

Strike Timer is a precision interval training app built for combat sports athletes and fitness enthusiasts. Create custom round timers with work/rest phases, voice coaching cues, and premium sound packs. Track your training history, sync workouts to Apple Health, and control your timer from your Apple Watch. Features: - Customizable round timers with work, rest, prep & cooldown phases - Built-in boxing, Muay Thai, Tabata & HIIT presets - Voice coaching cues (male & female) - Apple Watch companion app - Apple Health integration - Workout history & streak tracking - Premium sound effects - Custom color themes - Shake to pause — hands-free control No ads. No tracking. Just a better timer. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://striketimer.com/privacy

About

RoundFlow

This app provides a customizable interval timer for various combat sports and fitness routines. It seamlessly integrates with music apps, allowing your playlist to continue uninterrupted during workouts. Features include coach voice prompts, combo calls, and workout tracking.

Highlights
  • Music integration with Spotify, Apple Music, YouTube Music
  • Customizable round, rest, and warm-up/cool-down timers
  • Recorded coach voice and combo callouts
  • Workout tracking with calendar and streaks
  • Apple Watch companion app with haptic feedback
  • Workout art generation for social sharing
  • Group session synchronization
Features
Read full description

RoundFlow is the round timer you can pay for once and keep forever, and it doesn't kill your music. It keeps timing with the screen locked, ducks your music for the bell, then hands the volume straight back. Start Spotify, Apple Music or YouTube Music, hit START, lock the phone and train. Your playlist never stops. A COACH IN YOUR CORNER • A real recorded coach voice calls your rounds, rests and the final "3-2-1" • Combo calls shout live combinations — "Jab, cross, hook!" • Bell, coach voice and haptics — or switch to a built-in system voice BUILT FOR EVERY ROUND • Boxing, Muay Thai, MMA, kickboxing, taekwondo, karate, CrossFit, HIIT, Tabata, sprints & running • Two custom profiles free, unlimited with Pro: rounds, round time, rest, warm-up, cool-down and warning • A big, glanceable timer ring you can read from across the gym RUN & SPRINT • Roadwork — a GPS run tracker built for fighters: distance, pace, kilometre splits and a goal for the session • Sprints — interval sprint sessions with the same bell, coach voice and rest countdown as your rounds • Every run lands in the same training log as your rounds MADE TO SHARE • Workout DNA — every session draws a one-of-a-kind piece of art from your training, ready for Instagram Stories • Your RoundFlow Year — a Wrapped-style recap of everything you've put in • Challenge a friend — send any workout as a link, then compare your scores TRAIN TOGETHER • Group sessions in perfect sync — everyone hears the bell at the same moment • Present mode — mirror the timer to a TV or projector for the whole class TRAIN WITHOUT LOOKING • Live Activity & Dynamic Island keep the round live on your Lock Screen • Apple Watch companion — a haptic on every bell, plus live heart rate, punch count and Effort Score. Leave the phone in your bag • Runs in the background with the screen off TRACK YOUR WORK • An automatic training log of every session, with a calendar and streaks • Stats: total workouts, time on the mat, weekly activity and trends • Earn belts and badges as you put in the rounds RoundFlow Pro unlocks unlimited profiles, the recorded coach voice and combo calls, the full Apple Watch experience (heart rate, punch tracking and Effort Score), group hosting, and complete stats and trends. Try Pro free for 7 days, or unlock everything forever with a one-time Lifetime purchase. The only timer that lets your music play. Ring the bell. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://zakin02.github.io/roundflow/privacy.html

Screenshots

Strike Timer Interval Training4 screens
RoundFlow4 screens

Verdict

The call

The clearest difference is update cadence: RoundFlow at weekly against Strike Timer Interval Training's every 3 weeks. Strike Timer Interval Training's advantage is iOS requirement (15.1 vs 17.0). 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. Strike Timer Interval Training sells 1 in-app purchase, starting at $14.99 per year and RoundFlow sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Strike Timer Interval Training ships an update every 3 weeks, RoundFlow weekly. The most recent releases landed on September 11, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 7 level
Strike Timer Interval Training versus RoundFlow: the parameters behind the verdict, then further details
ParameterStrike Timer Interval TrainingRoundFlow
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size47 MB11 MB
Age rating4+4+
DeveloperShannon KempenichZakaria Elkassmi

In-app purchases

1 purchases

Strike Timer Interval Training

Subscriptions1
  • Strike Timer Pro$14.991 Year
3 purchases

RoundFlow

Subscriptions2
  • RoundFlow Pro (Monthly)$2.991 Month
  • RoundFlow Pro (Yearly)$7.991 Year
One-time1
  • RoundFlow Pro (Lifetime)$24.99

Questions

Is Strike Timer Interval Training free?
Strike Timer Interval Training is free to download, with in-app purchases available.
Is RoundFlow free?
RoundFlow is free to download, with in-app purchases available.
Do Strike Timer Interval Training or RoundFlow have ads?
Neither Strike Timer Interval Training nor RoundFlow shows ads.
Which is updated more often, Strike Timer Interval Training or RoundFlow?
Strike Timer Interval Training ships an update every 3 weeks, and RoundFlow weekly. Most recently, Strike Timer Interval Training was updated on September 11, 2026 and RoundFlow on September 24, 2026.

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