# kotomoことばのおとも vs NihongoShadow

The clearest difference is update cadence: NihongoShadow at every 2 days against kotomoことばのおとも's every 2 weeks. 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.

kotomoことばのおとも ships an update every 2 weeks, NihongoShadow every 2 days. Both last shipped on October 12, 2026.

## The numbers

| Metric | kotomoことばのおとも | NihongoShadow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 58 MB | 37 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SPI株式会社](https://appshunter.io/developer/1808633490) | [MIKIO MOCHIZUKI](https://appshunter.io/developer/6790101638) |

## What reviewers say

### kotomoことばのおとも

[App page](https://appshunter.io/ios/app/kotomo/id6761351778)

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

**In-app purchases:** none


### NihongoShadow

[App page](https://appshunter.io/ios/app/nihongoshadow/id6790101636)

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

**In-app purchases:** none


## Frequently asked questions

### Is kotomoことばのおとも free?

kotomoことばのおとも is free to download, with no in-app purchases.

### Is NihongoShadow free?

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

### Do kotomoことばのおとも or NihongoShadow have ads?

Neither kotomoことばのおとも nor NihongoShadow shows ads.

### Which is updated more often, kotomoことばのおとも or NihongoShadow?

kotomoことばのおとも ships an update every 2 weeks, and NihongoShadow every 2 days. Most recently, kotomoことばのおとも was updated on October 12, 2026 and NihongoShadow on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*