# HypeRate vs 妙算21

The clearest difference is rating: 妙算21 at 5.0 against HypeRate's 2.7. 妙算21 also leads on in-app purchases (none vs 6). HypeRate's advantage is ads (none vs shown) and ratings volume (25 vs 1). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. HypeRate sells 6 in-app purchases, starting at $0.99 per month. 妙算21 asks for nothing beyond the download.

妙算21 holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: HypeRate has 25 ratings behind it against 1, so its average is the more settled of the two.

HypeRate ships an update every 10 days, 妙算21 weekly. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | HypeRate | 妙算21 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (25 ratings)](https://appshunter.io/ios/app/hyperate/id1537526153/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/21/id6743411073/reviews)** |
| Number of ratings | **25** | 1 |
| Positive reviews | 52.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Subscription | **Ad-supported** |
| Size | 80 MB | 69 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Laura Hendrikje Alexis Wagner](https://appshunter.io/developer/1853386360) | [抗抗 韩](https://appshunter.io/developer/1681688691) |

## What reviewers say

### HypeRate

[App page](https://appshunter.io/ios/app/hyperate/id1537526153)

Enhance your live streams by displaying real-time heart rate and other IRL data. Automatically capture and share exciting moments with instant Twitch highlights. Integrates seamlessly with popular streaming tools.

**Highlights:** Live heart rate display on stream, IRL data widgets (weather, speed, G-force), Automatic Twitch highlight creation, Session stats summary, 20+ service integrations, Easy setup in under 2 minutes

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Custom ID | $0.99 | per month |
| Monthly | $3.99 | per month |
| IRL Monthly | $3.99 | per month |
| IRL Yearly | $19.99 | per year |
| Yearly | $19.99 | per year |
| Custom ID | $0.99 | one-time |


### 妙算21

[App page](https://appshunter.io/ios/app/21/id6743411073)

A simple and fun number addition elimination game. Enjoy endless entertainment with this addictive puzzle experience.

**Highlights:** Number addition, Elimination mechanics, Simple gameplay, Addictive puzzle, Casual entertainment

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HypeRate free?

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

### Is 妙算21 free?

妙算21 is free to download, with no in-app purchases.

### Which has better reviews, HypeRate or 妙算21?

妙算21 is rated higher. HypeRate averages 2.7 out of 5 from 25 ratings, while 妙算21 averages 5.0 from 1 ratings.

### Do HypeRate or 妙算21 have ads?

妙算21 shows ads; HypeRate does not.

### Which is updated more often, HypeRate or 妙算21?

HypeRate ships an update every 10 days, and 妙算21 weekly. Most recently, HypeRate was updated on October 11, 2026 and 妙算21 on October 3, 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.*