RegExp vs Semantic Developer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RegExp
This tool allows developers to test and explore regular expression patterns across various programming language syntaxes. It offers advanced configuration options and synchronization across devices, making it ideal for learning and building complex patterns.
- Multiple regex engine support
- Advanced Swift regex engine
- Save and organize regex patterns
- iCloud sync across devices
- Supports Swift, Objective-C, ECMAScript, and Go regex flavors
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RegExp is a regular expression tester for developers, on Mac, iPhone and iPad. Write a pattern, paste your text, and see every match and capture group as you type, with the same engine your code uses. Six flavors, real engines: • Swift Regex • NSRegularExpression (Objective-C and Swift) • JavaScript (ECMAScript) • PCRE2, the engine of PHP • Go and Go (POSIX) Write and understand patterns: • Matches and capture groups highlighted in the test string, with their names • Errors marked right in the pattern, unbalanced brackets too • Substitution with each engine's replacement syntax, and a list mode that extracts one line per match • A quick reference of each flavor's syntax: select an item to insert it • Copy the pattern as ready-to-use Swift, Objective-C, JavaScript, Go or PHP code • Jump between matches; slow patterns time out instead of freezing the app Keep your patterns: • Sessions and folders, your own regex notebook, synced with iCloud across your devices • Search, duplicate, export and import sessions, or open one in its own window • Shortcuts actions, Spotlight search, and a Services menu item on the Mac for selected text Most of RegExp is free. RegExp Pro, a one-time purchase that works with Family Sharing, adds: • Explain: what every part of a pattern does, in plain language, and what the selected flavor doesn't support • Test cases: strings a pattern must or must not match, checked on every run • Apple Intelligence: write a pattern from a description, or get a summary of one (on supported devices) • The advanced options of every flavor RegExp speaks English, German, French, Spanish, Italian, Portuguese, Ukrainian, Russian, Japanese and Chinese. Made by an independent developer. Questions or ideas? Write to support@loshadki.app.
Semantic Developer
This app provides a professional SSH terminal for AI-assisted development. It offers full terminal emulation, multi-tab workflows, and the ability to connect to remote servers from your iPhone or iPad. Persisted sessions are available with the Pro version.
- AI-assisted SSH terminal
- Full xterm-256color emulation
- Multi-tab and side-by-side sessions
- Persisted sessions with Pro
- Hardware and software keyboard support
- Git status sidebar
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Semantic Developer is a professional SSH terminal built for AI-assisted development workflows. Connect to remote servers, run Claude Code, Codex CLI, or any long-running shell tool, and monitor your work from iPhone or iPad. **SSH terminal for real development** Connect with password or private-key authentication, verify known hosts, and save the connection profiles you use every day. Credentials stay in Apple Keychain, while saved connection metadata remains separate from secrets. **Full terminal emulation** A from-scratch xterm-256color emulator renders your shell output faithfully: 256-color and true-color SGR, bold, italic, dim, inverse, alternate screen, scroll regions, reverse index, DEC line drawing, and application cursor key mode. vim, htop, Claude Code, and other TUI tools render correctly. **Multi-tab workflow** Open multiple SSH sessions as tabs, and on wider layouts view two sessions side by side. Each tab has an activity indicator so you can see output arriving in background sessions without switching away. **Persisted sessions with Pro** Semantic Developer Pro can install an optional helper on a server you control. With your approval, the helper keeps a remote shell running between connections so you can reattach after closing the app, switching networks, or stepping away. **iOS and iPadOS companion** Use the iPhone and iPad app to monitor and interact with remote sessions while away from your desk. A full terminal surface with hardware keyboard support, a software keyboard with terminal-specific accessory keys (Escape, Tab, Ctrl, arrows), and adaptive layout for all screen sizes and orientations. **Built for developers** - SSH with password or private key authentication - Known-hosts verification with configurable policy - xterm-256color and true-color rendering - OSC 7 current directory tracking per tab - OSC 2 window title capture with per-tab display - Git status sidebar for quick diff review - Free edition includes 1 saved connection - Pro unlocks unlimited saved connections and persisted sessions
Screenshots
Verdict
The clearest difference is update cadence: Semantic Developer at every 10 days against RegExp's every 6 months. Semantic Developer also leads on iOS requirement (16.0 vs 18.1). On price, review sentiment, ads and in-app purchases 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. RegExp sells 1 one-off in-app purchase and Semantic Developer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
RegExp ships an update every 6 months, Semantic Developer every 10 days. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.
| Parameter | RegExp | Semantic Developer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.1 | 16.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 60 MB |
| Age rating | +4 | 4+ |
| Developer | Loshadki, LLC | John Abbott |
Customer experience
RegExp
Semantic Developer
In-app purchases
RegExp
- Pro Features$2.99
Semantic Developer
- Semantic Developer Pro$9.99
Questions
Is RegExp free?
Is Semantic Developer free?
Do RegExp or Semantic Developer have ads?
Which is updated more often, RegExp or Semantic Developer?
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