# RegEx Lab vs UDevice

The clearest difference is rating: RegEx Lab at 4.8 against UDevice's 4.4. RegEx Lab also leads on price ($0.99 vs $4.99) and review sentiment (95% vs 78%). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

RegEx Lab costs $0.99 and UDevice $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RegEx Lab holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 172 and 36 respectively. Written reviews point the same way: 95% of RegEx Lab's written reviews are positive against 78% of UDevice's.

RegEx Lab ships an update monthly, UDevice every 3 weeks. The most recent releases landed on September 26, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | RegEx Lab | UDevice |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| Rating | **[4.8 (172 ratings)](https://appshunter.io/ios/app/regex-lab-regular-expressions/id1252988123/reviews)** | [4.4 (36 ratings)](https://appshunter.io/ios/app/udevice-dev-assistant/id1608053878/reviews) |
| Number of ratings | **172** | 36 |
| Positive reviews | **95.0% of reviews** | 78.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Best chart rank | **#57** | #64 |
| Size | 5 MB | 159 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [sovio](https://appshunter.io/developer/1397333570) | [Gansu Zhenxian Network Technology Co., Ltd.](https://appshunter.io/developer/1616881226) |

## What reviewers say

### RegEx Lab

[App page](https://appshunter.io/ios/app/regex-lab-regular-expressions/id1252988123)

**Currently charting:** #57 Top Paid · Developer Tools (US App Store)

This app allows users to test and experiment with regular expressions. It offers syntax highlighting, customizable match colors, and a detailed results list. Features include a replace function, dark and light themes, and a helpful cheatsheet for quick reference.

**Highlights:** Regex syntax highlighting, Match and capture group highlighting, Customizable highlight colors, Results list view, Replace feature, Dark and light themes, Regular expression cheatsheet

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Beautifully designed UI
- 🚀 Simple and easy to use
- ⚡ Gets regular expression tasks done quickly
- 💡 Useful offline Regex tool
- 🛠️ Essential text tool for devs and writers

**What reviewers complain about**

- 🐛 Files are hidden and not found in Files app
- 🐛 Export option makes a mess
- 🐛 Mac version has no effort put into it
- 🐛 Takes a long time for load screen to go away
- 🐛 'Select this match' option often doesn't work

**Reported bugs**

- iPad's Files app cannot find the app or Regex files
- Export option creates messy files
- Mac version lacks developer effort
- Slow load screen when creating new expressions
- Select this match option is unreliable

**Requested features**

- Make app and Regex files visible in Files app
- Improve export option for Regex files
- Add a button to clear the text window
- Allow simultaneous viewing of text and replacement text
- Add a button to copy and replace text on the previous screen


### UDevice

[App page](https://appshunter.io/ios/app/udevice-dev-assistant/id1608053878)

**Currently charting:** #64 Top Paid · Developer Tools (US App Store)

This app offers a comprehensive suite of developer and testing tools. It includes network utilities like HTTP(s) capture and DNS parsing, alongside system information and file management capabilities. Ideal for development, testing, and device management.

**Highlights:** HTTP(s) Capture/Rewrite, SSH and Terminal access, Python3 interpreter, Cookie editing, Network utilities (Ping, DNS, Traceroute, Port Scan), File manager, Device fingerprinting and system info

**Features:** macOS Compatibility, Safari Extension, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RegEx Lab free?

RegEx Lab costs $0.99, with no in-app purchases.

### Is UDevice free?

UDevice costs $4.99, with no in-app purchases.

### Which has better reviews, RegEx Lab or UDevice?

RegEx Lab is rated higher. RegEx Lab averages 4.8 out of 5 from 172 ratings, while UDevice averages 4.4 from 36 ratings.

### Do RegEx Lab or UDevice have ads?

Neither RegEx Lab nor UDevice shows ads.

### Which is updated more often, RegEx Lab or UDevice?

RegEx Lab ships an update monthly, and UDevice every 3 weeks. Most recently, RegEx Lab was updated on September 26, 2026 and UDevice on September 27, 2026.

### Which is more popular, RegEx Lab or UDevice?

RegEx Lab currently peaks at #57 in the App Store charts, and UDevice at #64. Chart position reflects recent download velocity rather than total install base.

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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.*