# polon vs tunas 公式アプリ

The clearest difference is update cadence: tunas 公式アプリ at every 15 months against polon's every 38 months. On price, ads, in-app purchases and device support there is nothing between them.

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

polon ships an update every 38 months, tunas 公式アプリ every 15 months. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | polon | tunas 公式アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 15 months** |
| Size | 15 MB | 37 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KAZUKI UZAWA](https://appshunter.io/developer/1473796835) | [YUMI IMACHI](https://appshunter.io/developer/1479502019) |

## What reviewers say

### polon

[App page](https://appshunter.io/ios/app/polon/id1473796836)

**In-app purchases:** none


### tunas 公式アプリ

[App page](https://appshunter.io/ios/app/tunas/id1479502020)

**In-app purchases:** none


## Frequently asked questions

### Is polon free?

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

### Is tunas 公式アプリ free?

tunas 公式アプリ is free to download, with no in-app purchases.

### Do polon or tunas 公式アプリ have ads?

Neither polon nor tunas 公式アプリ shows ads.

### Which is updated more often, polon or tunas 公式アプリ?

polon ships an update every 38 months, and tunas 公式アプリ every 15 months. Most recently, polon was updated on October 10, 2026 and tunas 公式アプリ on October 9, 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.*