IntervalFlow vs Between
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
IntervalFlow
Read full descriptionHide full description
A HIIT and interval timer that stays out of your way. No ads. No tracking. Nothing interrupts your workout. WHY INTERVALFLOW ⢠No ads, ever ā not a banner, not a video, not between rounds. Your countdown is never covered and your audio is never cut. ⢠No tracking ā no analytics, no advertising identifier, no account. Your workouts stay on your device. ⢠Live Activity and Dynamic Island ā your total time left stays on the Lock Screen and in the Dynamic Island. The screen stays awake while a workout is running, and when you return to the app the current phase is recalculated instantly, without replaying missed cues. BUILT FOR REAL WORKOUTS ⢠Ready-made presets: Tabata, HIIT 40/20, EMOM, boxing rounds, and multi-set circuits. ⢠Custom builder: prepare, work, rest, rounds, sets, rest between sets, and cooldown ā to the second. ⢠A countdown you can read across the room, with each phase in its own colour: work, rest, get ready, cooldown. ⢠Sound, haptics, and voice cues, so you can keep your eyes off the screen and on the set. IT KEEPS THE RECORD ⢠Every finished session is logged on its own ā time, rounds, and an estimate of calories. ⢠A daily streak and a weekly count, for the weeks when motivation needs a number. Made for HIIT, Tabata, cross-training, boxing, running intervals, stretching, EMOM, and circuits ā at the gym or on your living room floor. Open it, tap a preset, and start. That is the whole app.
Between
Read full descriptionHide full description
Between is the easiest way to time your workout. Log a set and keep track of your rest time automatically. Prefer intervals? Pick your work and rest times, then let the rounds run. No setup, no account, no learning curve. LIFTING, ONE TAP AT A TIME ⢠Tap log set when you rack the weight. Your rest timer countdown starts, with your set count right underneath. ⢠Choose a rest length with one tap: 45, 60, 90, or 120 seconds or create custom lengths that match best for your workouts. ⢠A chime plays when it's time to lift again. It plays over your music instead of pausing it. ⢠When your rest runs out, the clock starts counting your set from 0:00, so you always know where you are. ⢠One calm screen that stays put as you log. Nothing to dig through mid-workout. INTERVALS THAT RUN THEMSELVES ⢠Set your work time, rest time, and number of rounds, then press start. ⢠Everything runs on one ring: work, rest, round after round, from Tabata-style 20/10 to longer circuits of up to 50 rounds. ⢠A chime and a gentle tap mark every change, even with your phone locked, so you never need to look down. ON YOUR LOCK SCREEN AND WRIST ⢠The countdown stays on your Lock Screen and in the Dynamic Island, with logging your set just one tap away. No need to unlock. ⢠Your rest shows in the Apple Watch Smart Stack, so you can log the next set right from your wrist. In vibration mode, the watch buzzes 10 seconds before your rest ends and again at zero. No watch app to open. STAYS OUT OF YOUR WAY ⢠The rest counter keeps you on track, even when your phone is locked or you switch apps. ⢠Sound, haptics only, or silent: whatever suits your gym. ⢠No account, no sign-up. Open it and go. TRAIN TOGETHER ⢠Sharing equipment? Log up to four lifters on one phone. Between keeps everyone's count and shows whose rest is running. ⢠Training side by side? Link phones with friends doing the same sets. Anyone's Log set starts the same rest on every phone. Phones connect directly, the way AirDrop does, so it works in a basement gym with no Wi-Fi or signal. HANDS-FREE WITH SIRI Say "Log a set in Between," "Check my rest in Between," or "Rest 2 minutes in Between." Every answer is spoken, so your phone can stay in your pocket with AirPods in. The same actions work in Shortcuts, Spotlight, and on the Action Button. MAKE IT YOURS Four themes to match your mood: Night, Day, Navy, and Moss. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: IntervalFlow at none against Between's 2. IntervalFlow also leads on ads (none vs shown). Between's advantage is update cadence (daily vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Between sells 2 in-app purchases, starting at $2.99 per month. IntervalFlow asks for nothing beyond the download.
IntervalFlow ships an update every 3 weeks, Between daily. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.
| Parameter | IntervalFlow | Between |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Daily ā better |
| Ads | No ā better | Yes |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad ā better | iPhone |
| Requires iOS | 17.0 ā better | 18.0 |
| Further details ā not scored | ||
| Size | 2 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Hyunwoo Lee | Anthony Frigo |
In-app purchases
IntervalFlow
No in-app purchases
Between
- Between Plus Monthly7 Days trial$2.991 Month
- Between Plus Lifetime$19.99









