Json2Toon vs OBD2 Ninja
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Json2Toon
Read full descriptionHide full description
Json2Toon converts JSON to TOON and back ā seamlessly. What is TOON? Token-Oriented Object Notation (TOON) is a compact, human-readable data format designed for LLM input. It combines YAML's clean structure with CSV-style tabular arrays to minimize tokens while maintaining clarity. In benchmarks, TOON achieves 40% fewer tokens and higher LLM accuracy than JSON. Why use Json2Toon? If you work with AI tools, APIs, or large datasets, you know tokens cost money and context windows have limits. TOON lets you pack more data into fewer tokens ā saving costs and improving results. Features ⢠Bidirectional conversion ā JSON to TOON and TOON to JSON ⢠Mixed content support ā paste text with embedded JSON/TOON blocks and convert only the structured data ⢠Syntax highlighting ā multiple color themes for readability ⢠Token counter ā see exactly how many tokens your data uses ⢠Keyboard shortcuts ā fast workflow with ā[ ā] ā§āV ā§āC ⢠Shortcuts integration ā build automation workflows on iOS and macOS ⢠Spotlight & Services ā convert data without leaving your current app (macOS) 100% Private All conversions happen locally on your device. No network requests, no data collection, no account required. Works completely offline.
OBD2 Ninja
Read full descriptionHide full description
Check engine light on? Find out whether it's serious before you book a shop visit or drive another mile. OBD2 Ninja reads your car's codes and rates every one Fix Now, Fix Soon, or Monitor for your year, make and model. Then it tells you what to check first. $0.99 once. No subscription, no account, no ads. OBD2 Ninja carries Apple's "Data Not Collected" privacy label, and everything works offline. In a parking garage, on the shoulder, with no signal at all. IS IT SERIOUS? Every code gets an urgency rating, not just a definition: ⢠Fix Now: stop driving or get it looked at today ⢠Fix Soon: safe to drive, book it this week ⢠Monitor: keep an eye on it Plus what usually causes it on your specific vehicle, and the cheapest thing to check first. READY FOR EMISSIONS? See all eight readiness monitors at a glance before you go to the test station. Know whether you'll pass, or how many more miles of driving you need, instead of paying to find out. READ AND CLEAR ⢠Stored, pending and permanent codes ⢠Freeze frame data captured when the fault tripped ⢠Clear codes and reset the light after you fix it ⢠Confirm the fix actually held LIVE DATA Watch coolant temp, fuel trims, O2 sensors, RPM, load and timing in real time. Pin down an intermittent fault the parts-store scanner can't see. WHAT YOU NEED Any ELM327 Bluetooth LE or Wi-Fi adapter, and a car built 1996 or later (2001+ petrol / 2004+ diesel in the EU). Tested and confirmed with: Carista, Vgate iCar Pro BLE, OBDLink MX+. Full list and setup guide at ninja-obd2.com. WHAT IT DOESN'T DO OBD2 Ninja reads the engine and emissions systems that every car is required to expose. That is what turns your check engine light on. It does not read ABS, airbag, transmission or body-module codes, and it can't do dealer-level coding. Those need manufacturer-specific tools. We'd rather tell you that now than after you've paid. PRIVACY No account. No sign-up. No analytics. Nothing leaves your phone. Apple's own privacy label on this page reads "Data Not Collected." Check it. SUPPORT A real person answers every email. support@ninja-obd2.com
Screenshots
Verdict
The clearest difference is price: Json2Toon at Free against OBD2 Ninja's $0.99. Json2Toon also leads on device support (4 vs 1). OBD2 Ninja's advantage is update cadence (every 3 days vs every 9 months). On ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Json2Toon is free to download; OBD2 Ninja costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Json2Toon ships an update every 9 months, OBD2 Ninja every 3 days. The most recent releases landed on October 28, 2026 and October 9, 2026 respectively.
| Parameter | Json2Toon | OBD2 Ninja |
|---|---|---|
| Price | Free ā better | $0.99 |
| Update frequency | Every 9 months | Every 3 days ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac, Vision Pro ā better | iPhone |
| Requires iOS | 18.6 | 18.0 ā better |
| Further details ā not scored | ||
| Size | 32 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | amir hayek | Cory Green |
In-app purchases
Json2Toon
No in-app purchases
OBD2 Ninja
No in-app purchases
Questions
Is Json2Toon free?
Is OBD2 Ninja free?
Do Json2Toon or OBD2 Ninja have ads?
Which is updated more often, Json2Toon or OBD2 Ninja?
Other comparisons















