# Hemi vs Kyomei

The clearest difference is in-app purchases: Kyomei at none against Hemi's 2. Hemi's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (15.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Hemi sells 2 in-app purchases, starting at $14.99 per month. Kyomei asks for nothing beyond the download.

Hemi ships an update every 2 weeks, Kyomei monthly. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Hemi | Kyomei |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (2.5K ratings)](https://appshunter.io/ios/app/hemi-sync-flow/id1398928728/reviews)** | — |
| Number of ratings | **2.5K** | — |
| Positive reviews | 32.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Subscription | — |
| Size | 94 MB | 2 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Interstate Industries, Inc.](https://appshunter.io/developer/514852942) | [Jun-seob Byun](https://appshunter.io/developer/1759088435) |

## What reviewers say

### Hemi

[App page](https://appshunter.io/ios/app/hemi-sync-flow/id1398928728)

Explore consciousness with a curated selection of audio tracks. Access over 300 titles, including guided exercises, and create custom soundscapes. Meditate, sleep, concentrate, or relax with this comprehensive audio experience.

**Highlights:** Curated audio library, Over 300 titles, Gateway Experience exercises, Custom track mixer, Free DailySync feature, Meditate, sleep, concentrate, relax

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $14.99 | per month |
| Annual Subscription | $89.99 | per year |

**What reviewers like**

- 🌟 Helpful for meditation and mental health
- 🔊 High-quality audio
- 💻 Broad selection of content
- 🕰️ Useful for daily routines

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🤔 Confusing navigation and organization
- 💰 Expensive subscription
- 📼 Limited access to full-length tracks
- 🔍 Lack of clear information about content

**Reported bugs**

- Audio playback issues and abrupt stops
- Login and account syncing problems
- Compatibility issues on certain devices
- Glitches in the app's core functionality

**Requested features**

- Offline listening capability
- Better progress tracking and personalization
- Improved search and filtering options
- More detailed track descriptions


### Kyomei

[App page](https://appshunter.io/ios/app/kyomei/id6762557760)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hemi free?

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

### Is Kyomei free?

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

### Do Hemi or Kyomei have ads?

Neither Hemi nor Kyomei shows ads.

### Which is updated more often, Hemi or Kyomei?

Hemi ships an update every 2 weeks, and Kyomei monthly. Most recently, Hemi was updated on October 17, 2026 and Kyomei 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.*