# Stable T1D vs Dawn Phenomenon

The clearest difference is in-app purchases: Dawn Phenomenon at none against Stable T1D's 2. Dawn Phenomenon also leads on update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Stable T1D sells 2 in-app purchases, starting at $11.99 per month. Dawn Phenomenon asks for nothing beyond the download.

Stable T1D ships an update every 3 weeks, Dawn Phenomenon weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Stable T1D | Dawn Phenomenon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 47 MB | 3 MB |
| Requires iOS | **26.1** | 26.5 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Jessica Cilia Baldacchino](https://appshunter.io/developer/1891629801) | [Robert Darwin Johnston](https://appshunter.io/developer/1809584193) |

## What reviewers say

### Stable T1D

[App page](https://appshunter.io/ios/app/stable-t1d-type-1-diabetes/id6762518247)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stable Unlimited Monthly | $11.99 | per month |
| Stable Unlimited Yearly | $99.99 | per year |


### Dawn Phenomenon

[App page](https://appshunter.io/ios/app/dawn-phenomenon/id6777555174)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stable T1D free?

Stable T1D is free to download, with in-app purchases available.

### Is Dawn Phenomenon free?

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

### Do Stable T1D or Dawn Phenomenon have ads?

Neither Stable T1D nor Dawn Phenomenon shows ads.

### Which is updated more often, Stable T1D or Dawn Phenomenon?

Stable T1D ships an update every 3 weeks, and Dawn Phenomenon weekly. Most recently, Stable T1D was updated on October 31, 2026 and Dawn Phenomenon on November 5, 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.*