# Sleep Meister Lite vs EIR

The clearest difference is ads: EIR at none against Sleep Meister Lite's shown. EIR also leads on iOS requirement (11.0 vs 26.0). Sleep Meister Lite's advantage is update cadence (every 2 months vs every 38 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sleep Meister Lite ships an update every 2 months, EIR every 38 months. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Sleep Meister Lite | EIR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (633 ratings)](https://appshunter.io/ios/app/sleep-meister-lite/id599456380/reviews)** | — |
| Number of ratings | **633** | — |
| Positive reviews | 83.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 38 months |
| Monetization | Ad-supported | — |
| Size | 19 MB | 39 MB |
| Requires iOS | 26.0 | **11.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Naoya Araki](https://appshunter.io/developer/435849505) | [WADA SACHIKO](https://appshunter.io/developer/1540547579) |

## What reviewers say

### Sleep Meister Lite

[App page](https://appshunter.io/ios/app/sleep-meister-lite/id599456380)

This app monitors your sleep cycles using your device's accelerometer to wake you during your lightest sleep phase. It offers features like sleep talking recording, sleep data visualization, and automatic music player shutdown. Wake up feeling more refreshed with intelligent alarm management.

**Highlights:** Sleep cycle monitoring, Lightest sleep phase alarm, Sleep talking recording, Health app integration, Automatic music player stop, Sleep data visualization

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate sleep tracking
- 👍 Gentle alarm wakes you up
- 💡 Useful sleep data and insights
- 🎶 Customizable alarm sounds
- 📊 Detailed sleep charts and graphs

**What reviewers complain about**

- 🐛 Crashes and alarms not working
- 🔋 Battery drain issues
- 🕰️ Inaccurate sleep time recording
- 🤖 Poor English translations

**Reported bugs**

- Alarm not going off as scheduled
- App shutting down unexpectedly
- Sleep data not recording properly
- Compatibility issues with iOS updates

**Requested features**

- Add deep sleep percentage
- Ability to set multiple alarms
- Option to disable ads
- Improved sleep talk recording
- Sync with other health apps


### EIR

[App page](https://appshunter.io/ios/app/eir/id1540547577)

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Meister Lite free?

Sleep Meister Lite is free to download, with no in-app purchases.

### Is EIR free?

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

### Do Sleep Meister Lite or EIR have ads?

Sleep Meister Lite shows ads; EIR does not.

### Which is updated more often, Sleep Meister Lite or EIR?

Sleep Meister Lite ships an update every 2 months, and EIR every 38 months. Most recently, Sleep Meister Lite was updated on October 15, 2026 and EIR on October 2, 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.*