JSON Master vs MindWiki
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JSON Master
This offline iOS tool formats, views, validates, and converts JSON data. It supports large files and offers privacy-safe, local processing for developers needing to debug API responses or transform data formats.
- Offline JSON formatting and beautifying
- Tree and text view for JSON visualization
- Instant JSON syntax validation
- JSON to CSV, XML, Excel conversion
- Large file support
- Import from clipboard and files
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JSON Master is a professional JSON Formatter / Viewer / Converter for developers (offline iOS tool). Three key points upfront: 100% offline processing, privacy-safe, large file support — your data is never uploaded to any server. Core Features (Developer Favorites): JSON Formatter & Beautifier: One-click format/beautify/minify, with syntax highlighting support. JSON Viewer: Tree View / Text views for clear structure visualization. JSON Validator: Instant syntax error detection (with line numbers) for quick API response debugging. Fast Converter: Bidirectional JSON ↔ CSV / XML / Excel (.xlsx) conversion. Large File Support: Smoothly open and edit large files. Import Anywhere: Import from Clipboard / Files for debugging anytime. Why Choose JSON Master? • Privacy First: All formatting, validation, and conversion happen locally on your device. • Focused & Distraction-Free: Clean interface with no redundant steps, perfect for quick data inspection and fixing. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://legal.rkvpxdr.com/privacy.html
MindWiki
This app acts as a personal knowledge base, allowing you to capture, organize, and connect your notes. It enables AI assistants to understand your context by accessing your private vault of plain text information. Syncs seamlessly across devices.
- Quick capture of thoughts, links, and photos
- Voice capture with transcription
- AI-powered conversations based on your notes
- Connect any AI assistant to your vault
- Wikilinks for connecting pages
- Full-text and semantic search
- Plain markdown export
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MindWiki is the external memory and knowledge vault for the AI tools you use. Capture ideas, decisions, documents, voice notes, links, photos, and files in one private, searchable system. Connect compatible AI tools and agents when you want them to retrieve approved context or capture new knowledge. Your AI conversations end. Your knowledge does not. BUILD YOUR AI MEMORY • Capture thoughts instantly from the iPhone app • Speak naturally and turn voice into searchable text • Save links, photos, audio, documents, and other files • Keep ideas, decisions, research, and project context together TALK TO YOUR KNOWLEDGE • Ask MindWiki AI questions grounded in your own pages • Open cited sources directly from an answer • Use Live Conversation for spoken questions and responses • Focus AI on a specific file or folder when you need precision CONNECT AI TO YOUR VAULT MindWiki is not another AI assistant. It is the memory layer that gives compatible AI systems useful context from knowledge you control. • Connect compatible AI tools through a secure Model Context Protocol (MCP) endpoint • Let connected tools search and read relevant vault context • Capture new information back into MindWiki during a workflow • Keep access and changes under your control A CONNECTED SECOND BRAIN • Link related pages with [[wikilinks]] and backlinks • Find exact words with full-text search • Find related ideas with semantic search • Organize with folders, properties, and tags • Build a knowledge graph that grows with your thinking ONE KNOWLEDGE SYSTEM, EVERYWHERE Capture on iPhone, edit deeply on Mac, and reach the same synced vault from the web. Your knowledge remains available across supported MindWiki experiences instead of being trapped in one conversation or model. OWN YOUR KNOWLEDGE Every MindWiki page is plain markdown. Export your complete vault when you need it and keep control of the knowledge you build over time. The core vault is free. Optional subscriptions unlock additional AI, voice, transcription, automation, and connector capabilities. Build the memory layer for your AI future. Terms of Use (EULA): https://mindwiki.io/terms End User License Agreement: https://mindwiki.io/eula Privacy Policy: https://mindwiki.io/privacy
Screenshots
Verdict
The clearest difference is ads: MindWiki at none against JSON Master's shown. MindWiki also leads on rating (5.0 vs 4.6) and update cadence (every 4 days vs every 9 days). JSON Master's advantage is device support (3 vs 1). On price, review sentiment, ratings volume 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. JSON Master sells 3 in-app purchases, starting at $2.99 per 7 days and MindWiki sells 4 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.
MindWiki holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
JSON Master ships an update every 9 days, MindWiki every 4 days. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.
| Parameter | JSON Master | MindWiki |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (5 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 — better | 4 |
| Update frequency | Every 9 days | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 41 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Tianjin Illuso Information Technology Co., Ltd. | Keaton Williams |
Customer experience
JSON Master
MindWiki
In-app purchases
JSON Master
- JSON Master Pro (Weekly)3 Days trial$2.997 Days
- Pro (Yearly)$14.991 Year
- JSON Master Pro Lifetime$17.99
MindWiki
- MindWiki Pro (Monthly)$12.991 Month
- MindWiki Power (Monthly)$29.991 Month
- MindWiki Pro (Yearly)$129.001 Year
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- MindWiki Power (Yearly)$299.001 Year









