tunlr vs JSON View
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
tunlr
This app provides a full SSH terminal experience on your mobile device. It offers advanced features like biometric-protected keys, tmux session management, and on-device voice dictation for commands. Designed for developers and sysadmins, it prioritizes privacy with no accounts or tracking.
- Full PTY terminal emulation
- xterm-256color support
- Biometric-protected keys
- Tmux session attach
- On-device voice dictation
- Customizable keyboard toolbar
- 24 color themes
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SSH terminal in your pocket. Full xterm-256color emulation, biometric-protected keys, tmux session attach, and on-device voice dictation. No accounts, no tracking β everything stays on your device. tunlr is built for developers, sysadmins, and DevOps engineers who need real terminal access on iPhone and iPad. β TERMINAL β Full PTY terminal emulation powered by SwiftTerm. xterm-256color support. Configurable scrollback buffer up to 50,000 lines. Optional Metal GPU-accelerated rendering. Works in portrait and landscape on both iPhone and iPad. β TMUX SESSIONS β Pick up right where you left off. After connecting, tunlr lists the tmux sessions running on the server: attach to one, start a new one, or set a connection to always open the same session. When you return to the app, tunlr reconnects and re-attaches to the same session. Experimental support for zmx and agterm sessions. β AUTHENTICATION β Three ways to authenticate, all protected by Face ID or Touch ID: Secure Enclave keys β generate a P-256 ECDSA key that never leaves your device's Secure Enclave. The private key is inaccessible even to the app itself. Imported keys β bring your own Ed25519, ECDSA, or RSA keys. Stored in the iOS Keychain with biometric protection. Passwords β stored in the Keychain, never in plain text. β HOST VERIFICATION β Trust-on-first-use (TOFU) host key verification. tunlr saves the server fingerprint on first connection and warns you if it ever changes. Import fingerprints by scanning a QR code to skip the initial trust step. β VOICE INPUT β Dictate terminal commands with on-device speech recognition powered by WhisperKit. All audio processing happens on your device β nothing is sent to any server. β KEYBOARD TOOLBAR β Customizable keyboard toolbar with sticky modifier keys. Shortcut packs for Shell, Tmux, Vim, and Claude Code workflows. Save your own favorites. β CONNECTIONS β Save server profiles with hostname, port, username, and authentication method. Connect with a single tap. Auto-reconnect restores your session when you return to the app, with configurable keepalive intervals. β APPEARANCE β 24 color themes, dark and light: Default Dark, Solarized Dark, Solarized Light, Dracula, Nord, Monokai, One Dark, One Light, GitHub Dark, GitHub Light, Gruvbox Dark, Gruvbox Light, Catppuccin Mocha, Catppuccin Latte, Tokyo Night, Tokyo Night Day, RosΓ© Pine, RosΓ© Pine Dawn, Everforest Dark, Ayu Mirage, Night Owl, Tomorrow Night, Synthwave, and Kanagawa. Four monospace fonts and adjustable font size. β PRIVACY β No accounts. No analytics. No tracking. No data collection. Everything runs on your device. SSH connections go directly to your servers β tunlr never contacts any third-party service.
JSON View
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JSON View is a clean JSON viewer and editor. Open, view, edit, format, and validate JSON files β all offline, no account required, no ads. Whether you're a developer debugging an API response, a data analyst inspecting config files, a student learning JSON syntax, or someone who just received a .json file and needs to read it β JSON View handles it efficiently. TREE VIEW β EXPLORE JSON VISUALLY Navigate complex, deeply nested JSON with a collapsible tree view. Each node shows the key name, value type, and child count at a glance. Tap to expand or collapse any object or array. Color-coded types make it easy to spot strings, numbers, booleans, and null values without reading every line. Auto-expands the first two levels when you open a file β so you see structure immediately, not a wall of collapsed nodes. TEXT VIEW β READ & EDIT WITH SYNTAX HIGHLIGHTING Switch to a full syntax-highlighted text view with line numbers. Every key, string, number, boolean, and bracket is color-coded for quick scanning. Edit your JSON directly in the text editor β fix typos, update values, restructure data. JSON View gives you both a visual tree view AND a real text editing mode with syntax highlighting, giving you the flexibility to work exactly how you want. FORMAT & BEAUTIFY Beautify messy, minified JSON into a clean, readable structure with one tap. Choose your indentation β 2 spaces, 4 spaces, or tabs. Minify bloated JSON into compact single-line output for APIs or configs. Sort keys alphabetically to organize your data. VALIDATE BEFORE YOU SAVE Real-time JSON validation catches syntax errors before you save. See exactly which line and column has the problem β no more guessing. JSON View validates your file every time you save, so you never accidentally corrupt a file. Auto-fix common mistakes like trailing commas, missing quotes, and extra brackets. OPEN JSON FROM ANYWHERE Pick a .json file from your device storage using the built-in file browser. Paste JSON directly from your clipboard β no file needed. Load JSON from any URL (paste an API endpoint and see the response). Receive JSON shared from other apps. Start from scratch with a blank file or use starter templates (API Mock, package.json, Config Map). JSON View works with the Files app β tap any JSON file and open it directly in JSON View. SAVE, SHARE & EXPORT Save changes back to the original file. Save as a new .json file anywhere on your device. Export to XML or PDF for sharing with non-technical colleagues. Share formatted JSON as text to any messaging or note-taking app. Copy the entire file to your clipboard with one tap. CONVERT BETWEEN FORMATS Convert JSON to XML and XML to JSON with a single tap. Useful when you need to switch between data formats for different systems, APIs, or team members. Transform key casing β convert between camelCase, snake_case, and PascalCase across all keys in your file. DESIGNED FOR REAL USE Modern, clean interface optimized for your device. Dark mode and light mode with system-aware auto-switching. Works completely offline β no internet connection needed. No account, no sign-up, no login. No data collection β your JSON files never leave your device. Handles deeply nested structures and large files smoothly. Built by Garoono β indie developers who ship useful tools for real people. Have feedback? We read every message. Contact: garoono.digital@gmail.com Website: garoono.in Privacy Policy: https://sites.google.com/view/jsonview-privacy/privacypolicy Terms of Use: https://sites.google.com/view/jsonview-eula/privacypolicy
Screenshots
Verdict
The clearest difference is iOS requirement: JSON View at 15.0 against tunlr's 17.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | tunlr | JSON View |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Every 5 weeks | β |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 17.0 | 15.0 β better |
| Further details β not scored | ||
| Size | 11 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Anastasiia Trofimova | Gautam Singh Rathor |
In-app purchases
tunlr
No in-app purchases
JSON View
No in-app purchases









