Comparison

Walnut vs OBD BLE Debug

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • 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
Read full description

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

Walnut4 screens
OBD BLE Debug1 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Walnut sells 1 one-off in-app purchase. OBD BLE Debug asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

Scorecard4 real differences · 6 level
Walnut versus OBD BLE Debug: the parameters behind the verdict, then further details
ParameterWalnutOBD BLE Debug
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 4 days—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.416.0 — better
Further details — not scored
Size28 MB0 MB
Age rating17+4+
DeveloperJiwon ParkJEAN SCHURGER

Customer experience

Walnut

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

OBD BLE Debug

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Walnut

One-time1
  • Remove Ads$3.99
None

OBD BLE Debug

No in-app purchases

Questions

Is Walnut free?
Walnut is free to download, with in-app purchases available.
Is OBD BLE Debug free?
OBD BLE Debug is free to download, with no in-app purchases.
Which has better reviews, Walnut or OBD BLE Debug?
Walnut and OBD BLE Debug are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Walnut or OBD BLE Debug have ads?
Walnut shows ads; OBD BLE Debug does not.

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