Regex Parse & Replace Dev Tool vs Brain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Regex Parse & Replace Dev Tool
This tool validates regular expressions, highlights matches in text, and summarizes captured groups. It also allows for text replacement based on defined regex patterns and replacement strings.
- Regex validation
- Highlight regex matches
- Summarize captured groups
- Text replacement
- Input text highlighting
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Regex Validator and Replacement tool. This app can highlight regex in a given text and summarize recognized groups as well as replace text based on your regular expression and replacement input.
Brain
Quickly capture and organize your project ideas with a structured approach. This app offers a clean interface for managing features, design, bugs, and notes, all stored locally for privacy and speed.
- Instant idea capture
- Structured project categories (Features, Design, Bugs, Notes)
- On-device data storage
- Customizable themes and accent colors
- Haptic feedback and animations
- Multi-language support
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Project Brain is the fastest way to capture and organize ideas for your projects. Whether you're building an app, designing a product, or simply collecting thoughts — Project Brain keeps everything structured and beautiful. HOW IT WORKS Create a project in seconds: name, emoji icon, status. Then start dropping ideas in instantly. Each project includes four categories: • Features — what you want to build • Design — how it should look • Bugs — what needs fixing • Notes — everything else Tap an idea to add a description. Mark it as done. Swipe left to delete. BUILT FOR CREATORS • Dark and light themes • 6 accent color presets • Animated neon background • Spring animations on every button • Haptic feedback • 7 languages — English, Russian, Ukrainian, Spanish, German, French, Portuguese • Onboarding tutorial for new users • Animated launch screen NO CLUTTER No accounts. No cloud. No subscriptions. No ads. Everything stays on your device — private and instant. Start organizing your next big project today.
Screenshots
Verdict
The clearest difference is iOS requirement: Brain at 15.1 against Regex Parse & Replace Dev Tool's 26.0. On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Regex Parse & Replace Dev Tool | Brain |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 10 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Marvin Krueger | Yuliia Aliekseienko |
Customer experience
Regex Parse & Replace Dev Tool
Brain
In-app purchases
Regex Parse & Replace Dev Tool
No in-app purchases
Brain
No in-app purchases
Questions
Is Regex Parse & Replace Dev Tool free?
Is Brain free?
Do Regex Parse & Replace Dev Tool or Brain have ads?
Other comparisons
