Walnut vs OBD BLE Debug
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Walnut
This app allows developers to test WKWebView and SFSafariViewController configurations in real-time. It offers built-in DevTools for console, network, storage, and performance analysis, along with JavaScript injection and accessibility auditing.
- Real-time WKWebView configuration testing
- Built-in DevTools (Console, Network, Storage)
- JavaScript injection and execution
- SFSafariViewController testing with content blockers
- Accessibility auditing (axe-core)
- Responsive viewport and device emulation
- Bookmark management
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The ultimate developer tool for testing WKWebView and SFSafariViewController configurations in real-time. KEY FEATURES WKWebView Testing • Real-time configuration testing with 20+ options • Built-in DevTools: Console, Network, Storage, Performance, Sources, Accessibility • JavaScript injection and snippet execution • Custom User-Agent emulation • Viewport and device emulation SFSafariViewController Testing • Native Safari experience with content blockers • Reader mode and responsive size control • Customizable bar colors and dismiss button styles Developer Tools • Console: Capture console.log with %c CSS styling support • Network: Monitor fetch/XHR requests with timing data • Storage: View/edit localStorage, sessionStorage, cookies • Performance: Web Vitals (LCP, FID, CLS) and Navigation Timing • Sources: DOM tree inspection, stylesheets, scripts • Accessibility: axe-core based accessibility auditing Additional Features • Bookmark management for quick URL access • Responsive viewport resizing (iPhone, iPad, Desktop presets) • Screenshot capture • API capability detection • Dark mode support Perfect for iOS developers who need to test web content rendering, debug JavaScript, analyze network requests, and ensure accessibility compliance.
OBD BLE Debug
This tool allows developers and researchers to debug and explore OBD-II adapters using Bluetooth Low Energy. It facilitates direct interaction with ELM327 adapters, analyzes communications, and identifies supported PIDs for vehicles.
- Discover and connect to BLE devices
- ELM327 adapter initialization
- Automated PID scan
- Send raw OBD-II hex commands
- Bluetooth service and characteristic exploration
- Comprehensive communication log
- Export logs
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OBD BLE Debug is a debugging and exploration tool for OBD-II adapters connected via Bluetooth Low Energy (BLE). Designed for developers and researchers, this app lets you interact directly with ELM327 and compatible adapters, analyze communications, and discover PIDs supported by a vehicle. FEATURES • Discover and connect to nearby BLE devices with RSSI and advertised services display • One-tap ELM327 adapter initialization (AT commands) • Automated PID scan with real-time progress tracking • Send raw OBD-II hex commands • Detailed Bluetooth service and characteristic exploration (Read, Write, Notify, Indicate) • Comprehensive communication log with timestamps and color coding (TX, RX, ERR, DBG) • Export logs for external analysis via the iOS share sheet DISCLAIMER This application is intended for educational and research & development purposes only. It is NOT a vehicle diagnostic tool.
Screenshots
Verdict
The clearest difference is in-app purchases: OBD BLE Debug at none against Walnut's 1. OBD BLE Debug also leads on ads (none vs shown) and iOS requirement (16.0 vs 18.4). On price, rating, ratings volume 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. Walnut sells 1 one-off in-app purchase. OBD BLE Debug asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Walnut against 5.0 for OBD BLE Debug. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
| Parameter | Walnut | OBD BLE Debug |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 4 days | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.4 | 16.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 0 MB |
| Age rating | 17+ | 4+ |
| Developer | Jiwon Park | JEAN SCHURGER |
Customer experience
Walnut
OBD BLE Debug
In-app purchases
Walnut
- Remove Ads$3.99
OBD BLE Debug
No in-app purchases









