Interval Timer vs Yollo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interval Timer
Organize your running and high-intensity interval training sessions with ease. Quickly set up custom time intervals for running, walking, warm-ups, and cool-downs. Receive voice and vibration notifications for interval changes, and enjoy background music playback.
- Intuitive design
- Customizable time intervals
- Warm-up and cool-down timers
- Voice and vibration notifications
- Background music support
- Foreground/background operation
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Interval Run is a running interval timer for iPhone and Apple Watch. Create run/walk intervals, sprint sessions, and HIIT workouts in seconds. Train with voice announcements and haptic cues, control workouts from Apple Watch, save sessions to Apple Health, and track your workout history. Choose from 25+ ready-made running workouts or build your own. Follow intervals from the Lock Screen and Dynamic Island, and focus on your run. 25+ READY-MADE RUNNING WORKOUTS • Explore run/walk workouts, running intervals, sprints, hill repeats, tempo runs, fartlek sessions, ladders, pyramids, and more • Find workouts for speed, endurance, recovery, and different training goals • Start any workout immediately or customize it to match your training • Save your favorites to My Workouts for quick access BUILD YOUR OWN INTERVAL WORKOUT • Create simple run/walk intervals or advanced multi-step workouts • Add warm-up, running, walking, recovery, rest, and cool-down sections • Set a custom duration for every step • Repeat intervals and complete workout blocks • Add custom cues to guide you through each workout step • Build sprint, HIIT, cardio, and structured running sessions • Save multiple workouts and reuse them anytime • Preview the complete workout before you start VOICE & HAPTIC INTERVAL CUES • Hear clear voice announcements at every interval transition • Feel haptic cues when it’s time to run, walk, recover, or rest • Keep your workout active while your iPhone is locked or the app is in the background • Follow your current interval from the Lock Screen and Dynamic Island with Live Activities • Listen to music, podcasts, or audiobooks while you train RUN WITH APPLE WATCH • Sync workouts to Apple Watch • Start, pause, and control workouts directly from your wrist • Run phone-free with your workouts ready on Apple Watch • Follow interval progress without repeatedly checking your phone • Track heart rate, distance, and active energy during your workout • Get haptic interval cues directly on your Watch • Save completed workouts to Apple Health TRACK YOUR TRAINING • Browse completed workouts in calendar and history views • Review workout duration, intervals, distance, and active energy • Look back at your running and interval training over time • Share your workout results • Export and restore backups of your workout data MADE FOR RUNNERS WHO TRAIN WITH INTERVALS Whether you’re starting with beginner run/walk intervals, adding speed work to your weekly training, preparing for a 5K or another race, or creating a challenging HIIT session, Interval Run keeps every interval clear from start to finish. Use it as a simple run/walk timer, a running interval timer for speed training, an Apple Watch interval timer for phone-free workouts, or a flexible workout builder for more advanced structured sessions. From beginner run/walk workouts to sprints, tempo runs, hill repeats, fartlek training, and custom multi-step sessions, Interval Run adapts to the way you train. Start with one of 25+ ready-made workouts or create your own. Interval Run handles the timing so you can focus on your training. Some features shown, including the full workout library, advanced workout creation, multiple saved workouts, and full workout history, require Interval Run Pro. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Yollo
This app helps you create custom interval running routines with adjustable voice guidance. It also features social connections, appointment scheduling for runs, and integration with health data.
- Customizable interval running courses
- Adjustable voice guidance frequency
- Music playback without interruption
- Run appointment scheduling
- Follow nearby runners
- Direct messaging with connections
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*The best interval running timer app Yollo that provides you with the best running experience! - An app that allows you to set up the optimal interval running courses and adjust the frequency of voice guidance for your needs. *Clean Voice Coaching Running App - A running app with a no-frills voice coach that allows you to run while listening to music uninterrupted. *Appointments - A way to not procrastinate running! - Make appointments to run at the same time at your respective locations. *Social - Follow nearby runners and stimulate your running instincts. *Dating - If you follow each other, you can chat. Yollo Subscription • Get customized interval runs even after free use of 1 month. • Unlimited access to view runner profiles. • Unlimited access to view distance/rankings on the ranking list. • Create appointments with others without restriction. • Create clubs without restriction. • Invite club members without restriction. Yollo uses HealthKit to export your Yollo activities to the Health app and read heart rate and biometric data. You can subscribe and pay through your iTunes account. Payment will be charged to your iTunes account at confirmation of purchase. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. Subscriptions may be managed by the user and auto-renew may be turned off after purchase by going to the 'Manage Subscription' page in settings. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. The subscription will renew at the same cost. Terms of Service: https://support.yolloapp.com/terms Privacy Policy: https://support.yolloapp.com/
Screenshots
Verdict
The clearest difference is review sentiment: Yollo at 74% against Interval Timer's 21%. Yollo also leads on rating (5.0 vs 4.5) and update cadence (every 4 weeks vs every 3 months). Interval Timer's advantage is ratings volume (534 vs 15). On price, ads, in-app purchases and monetization model 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. Interval Timer sells 3 in-app purchases, starting at $2.99 per month and Yollo sells 2 in-app purchases, starting at $39.99 per year. Whichever you choose, the download price is not the number that matters.
Yollo holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Interval Timer has 534 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 21% of Interval Timer's written reviews are positive against 74% of Yollo's.
Interval Timer ships an update every 3 months, Yollo every 4 weeks. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.
| Parameter | Interval Timer | Yollo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (534 ratings) | 5.0 (15 ratings) — better |
| Positive reviews | 21.1% of reviews | 74.2% of reviews — better |
| Number of ratings | 534 — better | 15 |
| Update frequency | Every 3 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Requires iOS | 26.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 203 MB |
| Age rating | 4+ | 4+ |
| Developer | Roma Sosnovsky | Studio Y Inc. |
Customer experience
Interval Timer
Yollo
Bugs and requests
Interval Timer
Reported bugs
4 issues- Timer resets or freezes during workout
- Prompts not working when phone is locked or in pocket
- Unexpected interval changes or duration changes
- Compatibility issues with music playback
Requested features
6 requests- Option to pause/resume timer
- Larger time remaining display
- Apple Watch app
- Ability to play audio prompts even with screen off
- More interval options (run/walk/jog)
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- Congratulatory audio cue at the end
Yollo
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Interval Timer
- Interval Run Pro Monthly$2.991 Month
- Interval Run Pro Annual7 Days trial$19.991 Year
- Full Version$2.99
Yollo
- Yearly Subscription$39.991 Year
- Coach$1.99
Questions
Is Interval Timer free?
Is Yollo free?
Which has better reviews, Interval Timer or Yollo?
Do Interval Timer or Yollo have ads?
Which is updated more often, Interval Timer or Yollo?
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