# AcornSleep vs Usay

The clearest difference is update cadence: AcornSleep at every 10 days against Usay's every 3 weeks. AcornSleep also leads on iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

AcornSleep ships an update every 10 days, Usay every 3 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AcornSleep | Usay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/usay/id6759780128/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 78 MB | 162 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Canoe LLC](https://appshunter.io/developer/1628260135) | [Fison Health Co., Limited](https://appshunter.io/developer/1880602351) |

## What reviewers say

### AcornSleep

[App page](https://appshunter.io/ios/app/acornsleep/id6443873278)

**In-app purchases:** none


### Usay

[App page](https://appshunter.io/ios/app/usay/id6759780128)

This app offers a silent companion for self-reflection, tracking emotional states, mental fluctuations, and energy rhythms. It uses advanced physiological sensing to help manage stress, improve sleep, and monitor energy levels, blending seamlessly into daily life.

**Highlights:** Emotional state observation, Mental fluctuation tracking, Energy rhythm monitoring, Stress management, Sleep improvement, Physiological sensing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AcornSleep free?

AcornSleep is free to download, with no in-app purchases.

### Is Usay free?

Usay is free to download, with no in-app purchases.

### Do AcornSleep or Usay have ads?

Neither AcornSleep nor Usay shows ads.

### Which is updated more often, AcornSleep or Usay?

AcornSleep ships an update every 10 days, and Usay every 3 weeks. Most recently, AcornSleep was updated on November 7, 2026 and Usay on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*