# Deep Sleep App vs RedBird

The clearest difference is update cadence: RedBird at every 5 days against Deep Sleep App's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Deep Sleep App sells 2 in-app purchases, starting at $5.99 per month and RedBird sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Deep Sleep App ships an update every 3 months, RedBird every 5 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Deep Sleep App | RedBird |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 43 MB | 6 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [QUINTIN GEORGE XAVIER THIELE](https://appshunter.io/developer/1861958852) | [stephanie Macmillan](https://appshunter.io/developer/1895999153) |

## What reviewers say

### Deep Sleep App

[App page](https://appshunter.io/ios/app/deep-sleep-app/id6756632449)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscriber | $5.99 | per month |
| Deep Sleeper | $59.99 | per year |


### RedBird

[App page](https://appshunter.io/ios/app/redbird-period-tracker/id6765581577)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RedBird Monthly | $2.99 | per month |
| RedBird Premium Monthly | $3.99 | per month |
| RedBird Yearly | $14.99 | per year |
| RedBird Premium Yearly | $19.99 | per year |


## Frequently asked questions

### Is Deep Sleep App free?

Deep Sleep App is free to download, with in-app purchases available.

### Is RedBird free?

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

### Do Deep Sleep App or RedBird have ads?

Neither Deep Sleep App nor RedBird shows ads.

### Which is updated more often, Deep Sleep App or RedBird?

Deep Sleep App ships an update every 3 months, and RedBird every 5 days. Most recently, Deep Sleep App was updated on October 28, 2026 and RedBird on October 25, 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.*