SleepBytes vs Sleepillow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SleepBytes
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SleepBytes application which controls SleepBytes smart mattress will allow you to: - Configure your smart mattress. - View your data in real time. - View your reports (daily, weekly and monthly). - Receive advices to improve your sleep.
Sleepillow
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In order to promote sleep quality and mental health of the teenagers, Levelmind@JC cooperates with Hong Kong Playground Association to promote Sleepillow. Through this newly developed app, you can learn more about the sleep hygiene; use various means to reduce stress; record your sleeping time, and listen to emotion-calming audio. Sleepillow features: - Mindfulnesspractice audio - White noice player - Self-custermise playlist for sleeping - Sleepillow can be used in conjunction with Apple Health to synchronize and record your sleep in the sleep diary We will connect with HealthKit's sleep data. If you choose 'Allow,' we will use your sleep data in the app to display your sleep patterns. If you choose 'Don't Allow,' you won't be able to use this feature within the app.
Screenshots
Verdict
The clearest difference is update cadence: SleepBytes at every 3 months against Sleepillow's every 8 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
SleepBytes ships an update every 3 months, Sleepillow every 8 months. Both last shipped on November 7, 2026.
| Parameter | SleepBytes | Sleepillow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 66 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | SiliconeSignal Technologies | Hong Kong Playground Association |
In-app purchases
SleepBytes
No in-app purchases
Sleepillow
No in-app purchases
