# KotobaFlow vs YomiNavi

The clearest difference is update cadence: YomiNavi at every 3 days against KotobaFlow's every 3 months. YomiNavi also leads on iOS requirement (15.5 vs 17.0). 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.

KotobaFlow ships an update every 3 months, YomiNavi every 3 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | KotobaFlow | YomiNavi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 24 MB | 145 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [明昊 赫](https://appshunter.io/developer/1895791374) | [NIPPON SOSHIN K.K.](https://appshunter.io/developer/6778437621) |

## What reviewers say

### KotobaFlow

[App page](https://appshunter.io/ios/app/kotobaflow/id6765609800)

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

**In-app purchases:** none


### YomiNavi

[App page](https://appshunter.io/ios/app/yominavi/id6778437619)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KotobaFlow free?

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

### Is YomiNavi free?

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

### Do KotobaFlow or YomiNavi have ads?

Neither KotobaFlow nor YomiNavi shows ads.

### Which is updated more often, KotobaFlow or YomiNavi?

KotobaFlow ships an update every 3 months, and YomiNavi every 3 days. Most recently, KotobaFlow was updated on November 5, 2026 and YomiNavi on October 31, 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.*