# SEC DigiLib vs Kanji Lock

The clearest difference is in-app purchases: SEC DigiLib at none against Kanji Lock's 1. SEC DigiLib also leads on iOS requirement (16.0 vs 26.4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Kanji Lock sells 1 in-app purchase, starting at $1.99 per month. SEC DigiLib asks for nothing beyond the download.

SEC DigiLib ships an update every 2 weeks, Kanji Lock weekly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | SEC DigiLib | Kanji Lock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 71 MB | 33 MB |
| Requires iOS | **16.0** | 26.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Odilo](https://appshunter.io/developer/976580041) | [AYA FUNAKI](https://appshunter.io/developer/6804565359) |

## What reviewers say

### SEC DigiLib

[App page](https://appshunter.io/ios/app/sec-digilib/id1642897137)

**In-app purchases:** none


### Kanji Lock

[App page](https://appshunter.io/ios/app/kanji-lock/id6813785839)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |


## Frequently asked questions

### Is SEC DigiLib free?

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

### Is Kanji Lock free?

Kanji Lock is free to download, with in-app purchases available.

### Do SEC DigiLib or Kanji Lock have ads?

Neither SEC DigiLib nor Kanji Lock shows ads.

### Which is updated more often, SEC DigiLib or Kanji Lock?

SEC DigiLib ships an update every 2 weeks, and Kanji Lock weekly. Most recently, SEC DigiLib was updated on October 24, 2026 and Kanji Lock on October 22, 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.*