# 正規表現(Regular Expression) vs IT単：IT単語帳

The clearest difference is update cadence: IT単：IT単語帳 at monthly against 正規表現(Regular Expression)'s every 8 months. 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.

正規表現(Regular Expression) ships an update every 8 months, IT単：IT単語帳 monthly. Both last shipped on September 26, 2026.

## The numbers

| Metric | 正規表現(Regular Expression) | IT単：IT単語帳 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 14 MB | 36 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hiroki Sato](https://appshunter.io/developer/1514602166) | [Creatopia Inc.](https://appshunter.io/developer/1523447963) |

## What reviewers say

### 正規表現(Regular Expression)

[App page](https://appshunter.io/ios/app/regular-expression/id1529795657)

**Features:** macOS Compatibility

**In-app purchases:** none


### IT単：IT単語帳

[App page](https://appshunter.io/ios/app/itit/id6503707445)

Learn essential IT terms to improve your understanding of news, conversations with colleagues, and professional confidence. This app offers a curated list of approximately 1,000 IT words across 20 categories, with a review function to reinforce learning.

**Highlights:** Curated IT vocabulary list, Approximately 1,000 words, 20+ categories, Level-based learning, Review function, User-inputted word data

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

**In-app purchases:** none


## Frequently asked questions

### Is 正規表現(Regular Expression) free?

正規表現(Regular Expression) is free to download, with no in-app purchases.

### Is IT単：IT単語帳 free?

IT単：IT単語帳 is free to download, with no in-app purchases.

### Do 正規表現(Regular Expression) or IT単：IT単語帳 have ads?

Both 正規表現(Regular Expression) and IT単：IT単語帳 show ads.

### Which is updated more often, 正規表現(Regular Expression) or IT単：IT単語帳?

正規表現(Regular Expression) ships an update every 8 months, and IT単：IT単語帳 monthly. Most recently, 正規表現(Regular Expression) was updated on September 26, 2026 and IT単：IT単語帳 on September 26, 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.*