# RainWave vs mEinstein

The clearest difference is ads: RainWave at none against mEinstein's shown. RainWave also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.6). mEinstein's advantage is update cadence (every 2 weeks vs every 5 months). On price and in-app purchases there is nothing between them.

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

RainWave ships an update every 5 months, mEinstein every 2 weeks. Both last shipped on September 29, 2026.

## The numbers

| Metric | RainWave | mEinstein |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/meinstein/id6446581528/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | — | Ad-supported |
| Size | 14 MB | 469 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [yuanmei](https://appshunter.io/developer/1439548474) | [mEinstein LLC](https://appshunter.io/developer/1529132342) |

## What reviewers say

### RainWave

[App page](https://appshunter.io/ios/app/rainwave/id1470984270)

**Features:** macOS Compatibility

**In-app purchases:** none


### mEinstein

[App page](https://appshunter.io/ios/app/meinstein/id6446581528)

This app empowers users to control and monetize their personal data through an ethical marketplace. It also acts as an AI companion, offering personalized insights and recommendations powered by generative models. Your data is stored locally, ensuring privacy and security.

**Highlights:** Ethical data marketplace, AI companion with LLM, Personalized recommendations, Data ownership and control, Local data storage, Transparent data monetization

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is RainWave free?

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

### Is mEinstein free?

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

### Do RainWave or mEinstein have ads?

mEinstein shows ads; RainWave does not.

### Which is updated more often, RainWave or mEinstein?

RainWave ships an update every 5 months, and mEinstein every 2 weeks. Most recently, RainWave was updated on September 29, 2026 and mEinstein on September 29, 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.*