Comparison

Shadow Timer vs RoundFlow

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

Head to head
About

Shadow Timer

Features
Read full description

Take your boxing training to the next level with the ultimate boxing timer app. Whether you’re a beginner or a seasoned fighter, our app helps you master your rounds, combos, and rest intervals - all in one place. Why you’ll love it: Customizable Timer - Set rounds, rest periods, and total workout length to match your style. Combo Training - Pre-set or create your own punch combinations to improve speed, technique, and coordination. Workout Flexibility - Train anywhere, anytime, with routines built for all skill levels. Voice Cues & Sounds - Stay focused without watching the screen. Whether you’re training for fitness, competition, or just to feel stronger, this app is your corner coach in your pocket. Every second counts - make every round count too. Get ready, step into the ring, and train like a champion.

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

Shadow Timer4 screens
RoundFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: Shadow Timer at none against RoundFlow's 3. Shadow Timer also leads on iOS requirement (15.1 vs 17.0). On price, ads 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. RoundFlow sells 3 in-app purchases, starting at $2.99 per month. Shadow Timer asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Shadow Timer versus RoundFlow: the parameters behind the verdict, then further details
ParameterShadow TimerRoundFlow
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size30 MB11 MB
Age rating4+4+
DeveloperManuel MatosevicZakaria Elkassmi

In-app purchases

None

Shadow Timer

No in-app purchases

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 Shadow Timer free?
Shadow Timer is free to download, with no in-app purchases.
Is RoundFlow free?
RoundFlow is free to download, with in-app purchases available.
Do Shadow Timer or RoundFlow have ads?
Neither Shadow Timer nor RoundFlow shows ads.

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