# Polish（ポリッシュ） vs Good sleep

Polish（ポリッシュ） and Good sleep are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Polish（ポリッシュ） ships an update every 24 months, Good sleep every 35 months. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Polish（ポリッシュ） | Good sleep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 24 months** | Every 35 months |
| Size | 4 MB | 3 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shigeki Hanai](https://appshunter.io/developer/1589186040) | [shingo kamei](https://appshunter.io/developer/1256845824) |

## What reviewers say

### Polish（ポリッシュ）

[App page](https://appshunter.io/ios/app/polish/id1589186038)

**In-app purchases:** none


### Good sleep

[App page](https://appshunter.io/ios/app/good-sleep/id6443669109)

**In-app purchases:** none


## Frequently asked questions

### Is Polish（ポリッシュ） free?

Polish（ポリッシュ） is free to download, with no in-app purchases.

### Is Good sleep free?

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

### Do Polish（ポリッシュ） or Good sleep have ads?

Neither Polish（ポリッシュ） nor Good sleep shows ads.

### Which is updated more often, Polish（ポリッシュ） or Good sleep?

Polish（ポリッシュ） ships an update every 24 months, and Good sleep every 35 months. Most recently, Polish（ポリッシュ） was updated on September 8, 2026 and Good sleep on September 10, 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.*