# Oh!Natto! ~納豆ネバネバシミュレーション~ vs Mystery Seed Lab

The clearest difference is rating: Mystery Seed Lab at 5.0 against Oh!Natto! ~納豆ネバネバシミュレーション~'s 1.0. Oh!Natto! ~納豆ネバネバシミュレーション~'s advantage is in-app purchases (none vs 7) and ads (none vs shown). On price, ratings volume and update cadence there is nothing between them.

Both are free to download. Mystery Seed Lab sells 7 one-off in-app purchases. Oh!Natto! ~納豆ネバネバシミュレーション~ asks for nothing beyond the download.

Mystery Seed Lab holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews complicate that: 100% of Oh!Natto! ~納豆ネバネバシミュレーション~'s written reviews are positive against 82% of Mystery Seed Lab's, so the app with the better star average is not the one people write more warmly about.

Oh!Natto! ~納豆ネバネバシミュレーション~ ships an update every 10 days, Mystery Seed Lab every 6 days. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Oh!Natto! ~納豆ネバネバシミュレーション~ | Mystery Seed Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ohnatto/id1457049172/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mystery-seed-lab/id6816447931/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 81.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 356 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Harumi Sagawa](https://appshunter.io/developer/1454250246) | [MCS Corp.](https://appshunter.io/developer/6799434414) |

## What reviewers say

### Oh!Natto! ~納豆ネバネバシミュレーション~

[App page](https://appshunter.io/ios/app/ohnatto/id1457049172)

Engage in a unique natto-mixing action game where you compete for scores based on how much you can eat. The mixing consistency affects its portability. Share your high scores on social media and potentially discover a new appreciation for natto.

**Highlights:** Natto mixing action, Score-based competition, Eat as much natto as possible, Mix consistency affects portability, Share high scores on SNS, Stress relief gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Mystery Seed Lab

[App page](https://appshunter.io/ios/app/mystery-seed-lab/id6816447931)

Nurture a unique seed with eyes by providing various stimuli like water, light, and warmth. Discover over 500 different flowers and creatures, crossbreed them, and track your progress in a detailed journal. Connect with friends for assistance and enjoy daily rewards.

**Highlights:** Grow seeds with unique needs, Discover over 500 flower and creature types, Crossbreed flowers to create hybrids, Track progress in a detailed journal, Daily login bonuses and research themes, Home screen widget for quick checks, Connect with friends for boosters

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold Tube×1 | $0.99 | one-time |
| Growth Booster×3 | $0.99 | one-time |
| Gold Tube×3 | $1.99 | one-time |
| Growth Booster×10 | $1.99 | one-time |
| Extra Dish (2nd) | $1.99 | one-time |
| Extra Dish (3rd) | $2.99 | one-time |
| Gold Tube×10 | $6.99 | one-time |


## Frequently asked questions

### Is Oh!Natto! ~納豆ネバネバシミュレーション~ free?

Oh!Natto! ~納豆ネバネバシミュレーション~ is free to download, with no in-app purchases.

### Is Mystery Seed Lab free?

Mystery Seed Lab is free to download, with in-app purchases available.

### Which has better reviews, Oh!Natto! ~納豆ネバネバシミュレーション~ or Mystery Seed Lab?

Mystery Seed Lab is rated higher. Oh!Natto! ~納豆ネバネバシミュレーション~ averages 1.0 out of 5 from 1 ratings, while Mystery Seed Lab averages 5.0 from 1 ratings.

### Do Oh!Natto! ~納豆ネバネバシミュレーション~ or Mystery Seed Lab have ads?

Mystery Seed Lab shows ads; Oh!Natto! ~納豆ネバネバシミュレーション~ does not.

### Which is updated more often, Oh!Natto! ~納豆ネバネバシミュレーション~ or Mystery Seed Lab?

Oh!Natto! ~納豆ネバネバシミュレーション~ ships an update every 10 days, and Mystery Seed Lab every 6 days. Most recently, Oh!Natto! ~納豆ネバネバシミュレーション~ was updated on November 2, 2026 and Mystery Seed Lab on November 6, 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.*