Developer Tools vs MCP Replay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Developer Tools
This app consolidates over 30 essential developer utilities into a single, offline application. It provides tools for formatting, encoding, decoding, generating data, and testing code snippets without needing an internet connection. Enjoy a privacy-first approach with a one-time purchase and extensive customization options.
- Over 30 offline developer tools
- JSON formatter and converter
- Base64 encoder/decoder
- Fake data generator
- Regular expression evaluator
- REST API client
- Customizable themes and highlighting
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Exabox puts over 30 essential developer utilities in a single offline app. Stop searching for random websites every time you need to format JSON, decode Base64, generate dummy data, or test a regular expression. AVAILABLE TOOLS: • Backslash Escaper/Unescaper • Base64 Encoder/Decoder • Color Formats Converter • Cookie Builder • Cookie Parser • Date & Time Parser • Fake Data Generator • Hash Generator • Hexadecimal Encoder/Decoder • HTML Escaper/Unescaper • JSON Formatter • JSON/YAML/TOML/GSON Converter • JWT Token Parser • Math Expression Evaluator • Number Base Converter • QR Code Generator • Regular Expression Evaluator • REST API Client • Text Comparator • Text Inspector • Text Transformer • Timezone Comparator • URL Builder • URL Encoder/Decoder • URL Parser • UUID Parser & Generator BENEFITS: • Works 100% offline - your data stays on your device • Privacy-first approach with no data collection • One-time purchase, no subscriptions • 60+ app themes and 90+ code highlighting options • Instant tool search functionality Get all your dev tools in one secure, professional workspace.
MCP Replay
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MCP Replay is a trace viewer for the Model Context Protocol, the open standard AI agents use to call tools. Record a session with the free mcp-tape command line tool, then open it on your phone: every request, response, error, and latency, organized and searchable. WHAT YOU CAN DO - Open .jsonl traces from Files, AirDrop, or any share sheet - Follow a replay link someone sent you, or paste a bare share ID - Watch a live session streaming from mcp-tape on your own network - See paired tool calls with latencies, and per-tool stats (count, errors, avg, p95) - Filter the timeline by tool or method - Share a trace as a link that expires after 30 days, with a delete token so you stay in control BUILT FOR PRIVACY Traces stay on your phone. Nothing is uploaded unless you explicitly share a trace, and there are no accounts, no analytics, and no tracking. Live mode connects directly to your own computer; the stream never touches a server. FOR ANYONE BUILDING WITH AGENTS If you use Claude, ChatGPT, or any MCP-compatible agent framework and have ever asked "what did it actually do?", this is the answer. Record with one command: npx mcp-tape -- your-mcp-server-command Then open the trace here or at mcpreplay.dev. MCP Replay is open source and independent. It works with any tool that emits the open mcp-tape trace format.
Screenshots
Verdict
The clearest difference is in-app purchases: MCP Replay at none against Developer Tools's 1. Developer Tools's advantage is device support (4 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads 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. Developer Tools sells 1 one-off in-app purchase. MCP Replay asks for nothing beyond the download.
| Parameter | Developer Tools | MCP Replay |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 102 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Alberto Malagoli | craig merry |
In-app purchases
Developer Tools
- Lifetime$4.99
MCP Replay
No in-app purchases









