KaView vs JSON Pilot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KaView
Explore and understand software code like reading a book. This app offers a guided learning experience with an AI tutor that explains code snippets directly on the page. It allows for offline access to courses and public repositories, and even enables light editing and committing changes to GitHub.
- Code reading with syntax highlighting
- AI tutor for code explanation
- Offline course access
- GitHub integration for editing and committing
- Repository browsing as chapters
- Multi-language support
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Learn anything, offline — on your iPad or iPhone. Starting with code. KaView's vision is a universal library you learn from offline. Today it teaches you to program from real projects: structured courses, hands-on practice in a real codebase, and an AI tutor that explains any line. It opens with Mastering Believe — Kalira's free reference curriculum (MIT-licensed): markdown lessons paired with runnable code, on agents, neural networks, algorithms, system design, and the craft of learning. Or open any GitHub project and study it like a book. No autoplay. No ads. No algorithm pulling you elsewhere. Just a real codebase and the quiet tools to understand it. LEARN, YOUR WAY, OFFLINE • Mastering Believe ships with the app, and five curated collections are ready on first launch — gentle starter paths, fully yours to edit: - First steps in Python - Understanding AI agents - Build an LLM from scratch - A tour of Swift - Essential algorithms • A dedicated Cours tab: one tap downloads a course to read • Go further: a marketplace of public repos by theme — AI, Python, Swift, web, books AN AI TUTOR THAT READS THE PAGE • Ask in plain words — "explain this like I'm new," "what does this term mean," "why is it written this way" • Tap any snippet for Explain, Complete, or Refactor • On-device when Apple Intelligence is on (iOS 26+): private, no connection needed • Or bring your own OpenAI or Anthropic key READ CODE LIKE A BOOK • Markdown and source side by side, syntax-highlighted • Progress is local to the module or folder you are in — n of total for that chapter, not hundreds of pages across a whole repo • Book-style chrome: aligned prev/next arrows, ⋯ menu beside next, large tap targets • Navigate sheet puts lessons first; exercises are listed separately • Changing chapter scrolls you back to the top • Dozens of languages, rendered cleanly PRACTICE IN A REAL EDITOR • Fix a typo, jot a note, save a TODO as you learn • Sign in with GitHub, clone, edit, commit, push — without leaving the app • Token stays in the iOS Keychain BUILT FOR iPHONE AND iPAD • Native iOS 26 design: Files, Page, Cours, Chat • iPad: three-column layout, Split View, Stage Manager • Dynamic Type, VoiceOver, hardware keyboards, VS Code–style shortcuts PRIVACY BY DESIGN • No analytics, no trackers, no ads, no telemetry, no account • Data Not Collected KaView is a place to learn — a reader, a light editor, and an AI tutor, not an IDE. It doesn't run code. iOS 18 minimum; the on-device tutor needs iOS 26+ with Apple Intelligence. Open a course. Ask a question. Understand the code.
JSON Pilot
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A native JSON viewer and editor for iPhone and iPad, with an on-device AI assistant that explains your data without sending a byte to the cloud. JSON Pilot opens any JSON — from Files, the share sheet, AirDrop, your clipboard, or an HTTP request you fire from inside the app — and gives you three ways to read it: a syntax-highlighted Tree, a tap-to-edit Fields drilldown, and a Text view with line numbers. Edit at any level, prettify or minify, validate with a precise line:col error, and save the edits back to the original file. Multi-megabyte files open, search and edit smoothly. — FREE FOREVER — The whole viewer and editor is free with no account, no nags, no cloud sync. View, edit, validate, format, minify, search, Save, Save to Files, Share, Copy. We never gate the basics. — ON-DEVICE AI ASSISTANT — Ask "What is this JSON?", "Find issues" or "Extract all emails" and JSON Pilot answers locally, in your language, using Apple Foundation Models. Your JSON, your prompts and the model's replies never leave your device. No server, no API key, no cloud fallback. (The AI assistant requires Apple Intelligence: iPhone 15 Pro or later, or an iPad with M1 or A17 Pro or later, in a language Apple Intelligence supports. On other devices the assistant is turned off automatically; everything else in the app still works.) — POWER TOOLS (PRO) — • JSON Diff — compare two payloads by structure. Reformatting is never a change, and array items are lined up. Summary view groups Changed / Added / Removed; Unified view shows a GitHub-style line diff. • JSONPath queries — $, ., [i], [*], .. and more. Matches highlight right on the Tree. • Format conversion — export to YAML, CSV or XML. • HTTP request tool — send GET / POST / PUT / PATCH / DELETE with custom headers and a JSON body, then open the response in the same workspace. • Auto-fix — repair broken JSON: trailing commas, single quotes, unquoted keys, comments, smart quotes. • Themes — accent color and three syntax palettes. — PRIVACY YOU CAN VERIFY — Zero analytics SDKs. Zero telemetry. Zero crash reporters. The only network traffic the app initiates is StoreKit (your purchases) and HTTP requests you send yourself — and their responses are never cached on disk. Recents are stored locally, CloudKit is explicitly disabled, and Clear Recents erases your history together with every local copy of your documents. JSON Pilot does not request Camera, Photos, Contacts, Microphone, Location or any other iOS permission. — UPGRADE TO PRO — Two ways to unlock the same Pro features: • Monthly subscription — billed monthly, cancel anytime. • Lifetime — one-time purchase, keep Pro forever. Both options unlock the same features. See the App Store listing for current pricing in your region. Manage or cancel anytime in Settings → Apple Account → Subscriptions. — REQUIREMENTS — iPhone or iPad with iOS or iPadOS 26.4 or later. AI features require Apple Intelligence. Available in English, Deutsch, Español, Français, Italiano, Português (Brasil), Русский, 日本語, 한국어 and 简体中文. — SUPPORT — Questions, bugs, ideas? Use the App Support link on this page — we read everything. — TERMS — Terms of Use: https://shilovskii.dev/apps/json-pilot/terms.html Privacy Policy: https://shilovskii.dev/apps/json-pilot/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: KaView at none against JSON Pilot's 2. KaView also leads on update cadence (every 10 days vs every 2 months) and iOS requirement (18.0 vs 26.4). On price, ads and device support 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 Pilot sells 2 in-app purchases, starting at $1.99 per month. KaView asks for nothing beyond the download.
KaView ships an update every 10 days, JSON Pilot every 2 months. The most recent releases landed on October 18, 2026 and October 23, 2026 respectively.
| Parameter | KaView | JSON Pilot |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 31 MB | 4 MB |
| Age rating | 4+ | 17+ |
| Developer | Anthony VON BIELER | Georgii Shilovskii |
In-app purchases
KaView
No in-app purchases
JSON Pilot
- Pro Monthly3 Days trial$1.991 Month
- Pro — Lifetime Unlock$6.99









