RunIntervals vs Sleep Sounds ..
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RunIntervals
Set custom interval timers with voice or tone alerts. This app seamlessly integrates with your existing audio and fitness apps, pausing or lowering music volume to ensure you never miss an alert.
- Customizable interval durations
- Voice and tone alerts
- Music volume lowering
- Spoken audio pausing
- Works with other apps
- No user data collection
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Just pick your interval durations and click GO! "Plays well with others," so if you have favorite apps for audio or fitness tracking it will work well alongside those. Audio voice alerts or tones will momentarily lower the volume of your music or briefly pause spoken audio just long enough to hear the alert, then let you get right back to listening! This app does not track or collect any user data.
Sleep Sounds ..
Create personalized soundscapes with a wide variety of high-definition nature sounds, rain, and white noise. Save your favorite mixes and use the built-in timer to automatically stop playback. Enjoy offline functionality and background mode for uninterrupted relaxation.
- HD sound collection
- Mixable soundscapes
- Customizable ambiences
- Favorite sound mixes
- Automatic timer
- Offline functionality
- Background mode
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This app brings great collection of HD sounds that can be mixed into the perfect relaxing ambiences. You can choose from different types of rain, nature sounds, white noise . Save your favorite sound mixes so they are always by hand with you. You can schedule the timer that will automatically stop the application. It does not require internet connection so you can use it anywhere without worrying about the data. It can work in background mode. You can also use with your apple watch
Screenshots
Verdict
The clearest difference is in-app purchases: Sleep Sounds .. at none against RunIntervals's 2. Sleep Sounds .. also leads on ratings volume (2.4K vs 123). RunIntervals's advantage is ads (none vs shown) and update cadence (every 3 months vs every 38 months). On price, rating, review sentiment 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
Both are free to download. RunIntervals sells 2 one-off in-app purchases. Sleep Sounds .. asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for RunIntervals against 4.8 for Sleep Sounds ... That said, the two scores are not equally well evidenced: Sleep Sounds .. has 2.4K ratings behind it against 123, so its average is the more settled of the two. Written reviews are what separate them: 90% of RunIntervals's written reviews are positive against 92% of Sleep Sounds ..'s.
RunIntervals ships an update every 3 months, Sleep Sounds .. every 38 months. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.
| Parameter | RunIntervals | Sleep Sounds .. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (123 ratings) | 4.8 (2.4K ratings) — better |
| Positive reviews | 90.4% of reviews | 91.9% of reviews — better |
| Number of ratings | 123 | 2.4K — better |
| Update frequency | Every 3 months — better | Every 38 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 11.3 — better | 13.0 |
| Further details — not scored | ||
| Size | 26 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Robotic Jam LLC | UniCom Technology |
Customer experience
RunIntervals
Sleep Sounds ..
User reviews
RunIntervals
From 123 App Store ratingsWhat we love
- 🚀 Perfect app
- 🚀 Great app
- 🚀 Simple and effective
- 🚀 Straightforward and easy to use
- 🚀 Does exactly what it needs to
Room to improve
- 🐛 Does not work
- 🐛 Tones fail
- 🐛 Alerts don't work
- 🐛 Stops randomly
- 🐛 No sound on watch
Sleep Sounds ..
From 2.4K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Customization options
- 💤 Helps with sleep
- 🎨 Variety of sounds
- 💰 Free app
Room to improve
- 🐛 Randomly shuts off
- 🔇 Lack of background playback
Bugs and requests
RunIntervals
Reported bugs
3 issues- Interval tones not working with podcast/music
- Interval tones not working on Apple Watch
- App randomly stops during workouts
Requested features
7 requests- Ability to swap run/walk intervals
- Option to start with walking
- Ability to set number of repeats
- Vibration alerts
- Longer interval options (up to 30/60/120 mins)
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- Repeat feature for intervals
- Total time limit for workout
Sleep Sounds ..
Reported bugs
2 issues- Randomly shuts off
- Incompatible with some devices
Requested features
2 requests- More sound options
- Improved background playback
In-app purchases
RunIntervals
- Small Tip$0.99
- Big Tip$2.99
Sleep Sounds ..
No in-app purchases
Questions
Is RunIntervals free?
Is Sleep Sounds .. free?
Which has better reviews, RunIntervals or Sleep Sounds ..?
Do RunIntervals or Sleep Sounds .. have ads?
Which is updated more often, RunIntervals or Sleep Sounds ..?
Other comparisons
