# OpenDNA vs シラス

OpenDNA and シラス both sit at 5.0 stars, but that hides the real split: 95% of OpenDNA's written reviews are positive against 45% of シラス's. OpenDNA also leads on iOS requirement (13.0 vs 17.6). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for OpenDNA against 5.0 for シラス. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews are what separate them: 95% of OpenDNA's written reviews are positive against 45% of シラス's.

OpenDNA ships an update monthly, シラス every 3 weeks. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | OpenDNA | シラス |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/opendna/id1620832341/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/id6450448654/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | **95.0% of reviews** | 45.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 116 MB | 49 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [OpenDNA Inc.](https://appshunter.io/developer/994101524) | [Shirasu LLC](https://appshunter.io/developer/1693341807) |

## What reviewers say

### OpenDNA

[App page](https://appshunter.io/ios/app/opendna/id1620832341)

Explore art and philosophy through engaging 5-minute lessons and daily activities. Develop your critical thinking skills by discovering new concepts and recording your insights in a personal notepad.

**Highlights:** 5-minute learning content, Daily unusual activities, Personal notepad for discoveries, Explore Cubism, Learn about Haiku, Study light and shade in art, Investigate Western philosophy

**Features:** Vision Pro support

**In-app purchases:** none


### シラス

[App page](https://appshunter.io/ios/app/id6450448654)

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

**In-app purchases:** none


## Frequently asked questions

### Is OpenDNA free?

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

### Is シラス free?

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

### Which has better reviews, OpenDNA or シラス?

OpenDNA and シラス are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.

### Do OpenDNA or シラス have ads?

Neither OpenDNA nor シラス shows ads.

### Which is updated more often, OpenDNA or シラス?

OpenDNA ships an update monthly, and シラス every 3 weeks. Most recently, OpenDNA was updated on September 9, 2026 and シラス on September 21, 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.*