# Sleep Diary by Psyktest vs Lev Mer

The clearest difference is in-app purchases: Sleep Diary by Psyktest at none against Lev Mer's 2. Sleep Diary by Psyktest also leads on ads (none vs shown) and iOS requirement (15.1 vs 26.4). Lev Mer's advantage is update cadence (weekly vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Lev Mer sells 2 in-app purchases, starting at $5.99 per month. Sleep Diary by Psyktest asks for nothing beyond the download.

Sleep Diary by Psyktest ships an update every 3 weeks, Lev Mer weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sleep Diary by Psyktest | Lev Mer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 57 MB | 34 MB |
| Requires iOS | **15.1** | 26.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Lavamilk AS](https://appshunter.io/developer/1832836684) | [LYNO AS](https://appshunter.io/developer/6773673032) |

## What reviewers say

### Sleep Diary by Psyktest

[App page](https://appshunter.io/ios/app/sleep-diary-by-psyktest/id6749919068)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lev Mer

[App page](https://appshunter.io/ios/app/lev-mer/id6773673030)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| levmer Pro (månedlig) | $5.99 | per month |
| levmer Pro (Yearly) | $59.99 | per year |


## Frequently asked questions

### Is Sleep Diary by Psyktest free?

Sleep Diary by Psyktest is free to download, with no in-app purchases.

### Is Lev Mer free?

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

### Do Sleep Diary by Psyktest or Lev Mer have ads?

Lev Mer shows ads; Sleep Diary by Psyktest does not.

### Which is updated more often, Sleep Diary by Psyktest or Lev Mer?

Sleep Diary by Psyktest ships an update every 3 weeks, and Lev Mer weekly. Most recently, Sleep Diary by Psyktest was updated on October 28, 2026 and Lev Mer 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.*