# LunaDay vs Sleep Again

LunaDay and Sleep Again are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. LunaDay sells 1 one-off in-app purchase and Sleep Again sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

LunaDay ships an update every 2 weeks, Sleep Again every 11 days. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | LunaDay | Sleep Again |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lunaday/id6757979349/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 13 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [想 李](https://appshunter.io/developer/1867214616) | [Joakim Achren](https://appshunter.io/developer/1844852970) |

## What reviewers say

### LunaDay

[App page](https://appshunter.io/ios/app/lunaday/id6757979349)

A private, offline period tracker focused on digital minimalism. It offers a clean interface, smart predictions, and gentle reminders, with all data stored locally on your device. Enjoy a permanently ad-free experience with a one-time purchase for lifetime access.

**Highlights:** Absolute privacy with local data storage, Ultra-lightweight and fast performance, Permanently ad-free interface, Minimalist calendar view, Smart period prediction, Gentle reminders, iCloud sync for Apple devices

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 永久会员权益 | $0.99 | one-time |


### Sleep Again

[App page](https://appshunter.io/ios/app/sleep-again/id6759914968)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $9.99 | per year |


## Frequently asked questions

### Is LunaDay free?

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

### Is Sleep Again free?

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

### Do LunaDay or Sleep Again have ads?

Neither LunaDay nor Sleep Again shows ads.

### Which is updated more often, LunaDay or Sleep Again?

LunaDay ships an update every 2 weeks, and Sleep Again every 11 days. Most recently, LunaDay was updated on October 14, 2026 and Sleep Again on October 8, 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.*