# Planet Sylvia vs Nihongo Explorer

The clearest difference is in-app purchases: Nihongo Explorer at none against Planet Sylvia's 6. Nihongo Explorer also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Planet Sylvia sells 6 one-off in-app purchases. Nihongo Explorer asks for nothing beyond the download.

Planet Sylvia ships an update every 3 days, Nihongo Explorer every 4 days. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Planet Sylvia | Nihongo Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 4 days |
| Monetization | Free with in-app purchases | — |
| Size | 514 MB | 771 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ali YUCE](https://appshunter.io/developer/1653452885) | [KEI NAGASE](https://appshunter.io/developer/1784427302) |

## What reviewers say

### Planet Sylvia

[App page](https://appshunter.io/ios/app/planet-sylvia/id6680194211)

Embark on a cosmic adventure to colonize planets, build bases, and upgrade your spacecraft. Explore a vast universe, gather resources, and uncover the secrets of uncharted worlds.

**Highlights:** Establish bases on uncharted worlds, Gather and manage resources, Upgrade and customize spacecraft, Unlock and customize specialized ships, Explore unique planets and their mysteries, Develop adaptive strategies for diverse environments

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diamond Pack 1 | $0.99 | one-time |
| Diamond Pack 2 | $3.99 | one-time |
| Promo Pack | $4.99 | one-time |
| Diamond Pack 3 | $9.99 | one-time |
| Diamond Pack 4 | $19.99 | one-time |
| Diamond Pack 5 | $39.99 | one-time |


### Nihongo Explorer

[App page](https://appshunter.io/ios/app/nihongo-explorer/id6749262478)

**In-app purchases:** none


## Frequently asked questions

### Is Planet Sylvia free?

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

### Is Nihongo Explorer free?

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

### Do Planet Sylvia or Nihongo Explorer have ads?

Both Planet Sylvia and Nihongo Explorer show ads.

### Which is updated more often, Planet Sylvia or Nihongo Explorer?

Planet Sylvia ships an update every 3 days, and Nihongo Explorer every 4 days. Most recently, Planet Sylvia was updated on October 17, 2026 and Nihongo Explorer on October 7, 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.*