# システム監査技術者 vs LingoLen

The clearest difference is update cadence: システム監査技術者 at every 2 days against LingoLen's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. システム監査技術者 sells 1 one-off in-app purchase and LingoLen sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

システム監査技術者 ships an update every 2 days, LingoLen weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | システム監査技術者 | LingoLen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/lingolen-language-learning/id6788663234/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 49 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) | [Sumaira Safdar](https://appshunter.io/developer/6786722197) |

## What reviewers say

### システム監査技術者

[App page](https://appshunter.io/ios/app/id6757284046)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| システム監査技術者 試験対策 | $1.99 | one-time |


### LingoLen

[App page](https://appshunter.io/ios/app/lingolen-language-learning/id6788663234)

Master new languages with engaging lessons and interactive exercises. Improve speaking, listening, reading, and writing skills across over 40 global languages. Track your progress and build confidence for travel, work, or personal growth.

**Highlights:** Learn over 40 global languages, Improve speaking, listening, reading, writing, Interactive lessons and quizzes, Personalized progress tracking, Learn multiple writing systems, Bite-sized lessons for motivation

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Monthly Subscription | $12.99 | per month |
| Yearly Subscription | $29.99 | per year |


## Frequently asked questions

### Is システム監査技術者 free?

システム監査技術者 is free to download, with in-app purchases available.

### Is LingoLen free?

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

### Do システム監査技術者 or LingoLen have ads?

Neither システム監査技術者 nor LingoLen shows ads.

### Which is updated more often, システム監査技術者 or LingoLen?

システム監査技術者 ships an update every 2 days, and LingoLen weekly. Most recently, システム監査技術者 was updated on October 25, 2026 and LingoLen 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.*