# MoodLens vs Drowsa

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

Both are free to download. Drowsa sells 2 in-app purchases, starting at $4.99 per month. MoodLens asks for nothing beyond the download.

MoodLens ships an update every 3 days, Drowsa every 3 weeks. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | MoodLens | Drowsa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 5 MB | 3 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GetDeAddicted LLC](https://appshunter.io/developer/1887948082) | [Jiandou Technology Co., Ltd.](https://appshunter.io/developer/985566466) |

## What reviewers say

### MoodLens

[App page](https://appshunter.io/ios/app/moodlens-emotion-tracker/id6762069227)

**Features:** macOS Compatibility

**In-app purchases:** none


### Drowsa

[App page](https://appshunter.io/ios/app/drowsa-night-shift-sleep/id6773168860)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drowsa Pro Monthly | $4.99 | per month |
| Drowsa Pro Annual | $29.99 | per year |


## Frequently asked questions

### Is MoodLens free?

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

### Is Drowsa free?

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

### Do MoodLens or Drowsa have ads?

Neither MoodLens nor Drowsa shows ads.

### Which is updated more often, MoodLens or Drowsa?

MoodLens ships an update every 3 days, and Drowsa every 3 weeks. Most recently, MoodLens was updated on September 14, 2026 and Drowsa on September 18, 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.*