Comparison

RoundFlow vs Corner

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

Head to head
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

About

Corner

Features
Read full description

CORNER — THE BOXING ROUND TIMER YOU CAN READ ACROSS THE GYM Corner is a round and interval timer built for combat sports and high-intensity training. Big, bold, readable — from the ring, the bag, or the far side of the gym. FREE — A COMPLETE BOXING TIMER Start training in seconds with the classic boxing preset: 3:00 rounds, 1:00 rest, with prep, a 10-second warning, and the bell. Full-bleed phase colors — green to fight, amber for the last ten, red to rest — so you always know where you are at a glance. Works in portrait and landscape, keeps the screen awake, and sounds the bell even on silent or with the phone locked in your pocket. CORNER PRO — ONE-TIME UNLOCK, NO SUBSCRIPTION - Custom schemes — set your own rounds, work, rest, warning and prep for boxing, MMA, HIIT, Tabata or circuits - Voice call-outs — hear the round, the warning and the rest without looking down - Apple Watch app — start, pause and feel every round buzz on your wrist - Gym Clock mode — a full-screen landscape wall clock you can read across the room BUILT FOR THE WAY YOU TRAIN Boxing, kickboxing, Muay Thai, MMA, BJJ and wrestling — plus HIIT, Tabata, CrossFit and circuit training. Whether you're sparring, hitting the bag, shadowboxing or grinding conditioning rounds, Corner keeps the time so you can keep working. WHY CORNER - Read it from anywhere — giant digits, full-screen color - No ads, no subscription — Pro is a one-time purchase - Fully on-device — no account, no tracking, nothing collected - Accessible — color-blind mode adds words and patterns, VoiceOver announces every phase, Reduced Motion is respected Made for training. Not medical or professional-refereeing equipment. Terms of Use: https://arytec.ch/corner/terms Privacy Policy: https://arytec.ch/corner/privacy Support: https://arytec.ch/corner/support

Screenshots

RoundFlow4 screens
Corner4 screens

Verdict

The call

RoundFlow and Corner are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 and Corner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
RoundFlow versus Corner: the parameters behind the verdict, then further details
ParameterRoundFlowCorner
PriceFreeFree
Rating5.0 (1 ratings) — better
Number of ratings1 — better
Update frequencyWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS17.017.0
Further details — not scored
Size11 MB3 MB
Age rating4+4+
DeveloperZakaria ElkassmiLiridon Tahiraj

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
1 purchases

Corner

One-time1
  • Corner Pro$9.99

Questions

Is RoundFlow free?
RoundFlow is free to download, with in-app purchases available.
Is Corner free?
Corner is free to download, with in-app purchases available.
Do RoundFlow or Corner have ads?
Neither RoundFlow nor Corner shows ads.

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