# Sleep Well vs Formosa Explore

The clearest difference is update cadence: Sleep Well at every 6 days against Formosa Explore's every 3 months. 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.

Sleep Well ships an update every 6 days, Formosa Explore every 3 months. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Sleep Well | Formosa Explore |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 months |
| Size | 248 MB | 838 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [TAIPEI MEDICAL UNIVERSITY Psychosomatic Symptom Management Lab](https://appshunter.io/developer/1626612127) | [智遊科技服務股份有限公司](https://appshunter.io/developer/1724284475) |

## What reviewers say

### Sleep Well

[App page](https://appshunter.io/ios/app/sleep-well/id1626611885)

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

**In-app purchases:** none


### Formosa Explore

[App page](https://appshunter.io/ios/app/formosa-explore/id6478939807)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Well free?

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

### Is Formosa Explore free?

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

### Do Sleep Well or Formosa Explore have ads?

Neither Sleep Well nor Formosa Explore shows ads.

### Which is updated more often, Sleep Well or Formosa Explore?

Sleep Well ships an update every 6 days, and Formosa Explore every 3 months. Most recently, Sleep Well was updated on October 5, 2026 and Formosa Explore on October 4, 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.*