Boxing Timer vs RoundFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Boxing Timer
This interval timer is designed for combat sports and HIIT workouts. It offers customizable round timers with authentic sound cues and visual indicators. Track your training progress with detailed statistics and view your timer on your Lock Screen or Dynamic Island.
- Authentic boxing round timer with bell sounds
- Customizable workout profiles for various training styles
- Live Activities and Dynamic Island integration
- Detailed training statistics and progress tracking
- Color-coded visuals for phase indication
- Adjustable round, work, rest, and prepare times
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Your corner. Your rules. Your timer. CornerSense is the boxing timer and interval timer built for fighters. Whether you're hitting the heavy bag, shadow boxing, training Muay Thai, or doing a HIIT workout — CornerSense keeps your rounds tight and your rest on point. PROFESSIONAL BOXING TIMER Authentic boxing round timer with real bell sounds and round voiceovers. Set your round duration from 30 seconds to 5 minutes, choose your rest intervals, and train like a pro. Prepare phase, work phase, rest phase — all timed to perfection with color-coded visuals so you always know where you stand. FULLY CUSTOMIZABLE PROFILES Create unlimited workout timer profiles for every style of training. Boxing fundamentals, HIIT circuits, kickboxing drills, Muay Thai rounds, conditioning work — save each setup and switch between them in a tap. Adjust rounds, work time, rest time, and prepare time with an intuitive rotating dial. LIVE ACTIVITIES & DYNAMIC ISLAND See your boxing timer right on your Lock Screen and Dynamic Island. Never miss a round change even when your phone is across the gym. Your current phase, round number, and countdown — always visible at a glance. DETAILED TRAINING STATS Track every session automatically. See daily, weekly, monthly, and yearly breakdowns of your training. Activity heatmaps, streak tracking, personal bests, peak training hours, and sparkline comparisons — all to keep you accountable and motivated. Privacy Policy: https://www.cornersense.com/privacy Terms of Use: https://www.cornersense.com/terms EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
- 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
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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
Verdict
The clearest difference is update cadence: Boxing Timer at every 2 days against RoundFlow's weekly. Boxing Timer also leads on iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and ads 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
Both are free to download. Boxing Timer sells 3 in-app purchases, starting at $3.99 per month 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.
On the App Store both sit at effectively the same score — 5.0 for Boxing Timer against 5.0 for RoundFlow. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Boxing Timer ships an update every 2 days, RoundFlow weekly. Both last shipped on September 24, 2026.
| Parameter | Boxing Timer | RoundFlow |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 54 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Alizandro Lopez | Zakaria Elkassmi |
Customer experience
Boxing Timer
RoundFlow
In-app purchases
Boxing Timer
- CornerSense Pro Monthly$3.991 Month
- CornerSense Pro Yearly$19.991 Year
- CornerSense Pro Lifetime$49.99
RoundFlow
- RoundFlow Pro (Monthly)$2.991 Month
- RoundFlow Pro (Yearly)$7.991 Year
- RoundFlow Pro (Lifetime)$24.99









