DND vs Ratchet AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DND
This tool helps you understand your vehicle's health and diagnose issues. It provides comprehensive diagnostic services, maintenance guidance, and real-time sensor data monitoring, making car care accessible even for beginners.
- OBD functionality
- Enhanced diagnosis
- Vehicle maintenance guidance
- Locate malfunction causes
- AI services
- Abnormal warnings
- Real-time sensor data monitoring
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DND is a professional vehicle diagnostic tool that provides comprehensive services such as OBD functionality, enhanced diagnosis, and vehicle maintenance, saving users time and money. It allows you to easily check the health status of your vehicle without having to go to a repair shop, quickly locate the cause of vehicle malfunctions, and provide users with comprehensive application services such as AI services and abnormal warnings. Get to know your vehicle better Become more knowledgeable about your vehicle and take good care of it. Gain greater confidence and peace of mind with Echo diagnostic tool and DND App in your pocket. Diagnose and repair with DND Discover why the Check Engine Light is on, provide maintenance guidance and reset the Diagnostic Trouble Codes. Save time and money by diagnosing the root cause without visiting a mechanic. Easily used even for beginners You can easily have professional repair and maintenance knowledge with intelligent by services, it can be easily used even for beginners. Monitor real-time sensor data Maintain the health of the your vehicle by monitoring the engine and various systems in real-time. Improve efficiency and prevent malfunctions.
Ratchet AI
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Ratchet AI Mechanic helps you understand what is happening with your car before you spend money at a shop. Connect a supported OBD2 adapter, scan for fault codes, view live engine data, and ask Ratchet for plain-English diagnostic guidance. Ratchet can explain codes, symptoms, sensor readings, likely causes, repair difficulty, and fair price ranges. Terms of Use (EULA): https://www.tryratchet.com/tos Privacy Policy: https://www.tryratchet.com/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: DND at none against Ratchet AI's 4. On price, update cadence, 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. Ratchet AI sells 4 in-app purchases, starting at $12.99 per month. DND asks for nothing beyond the download.
DND ships an update every 8 days, Ratchet AI every 10 days. Both last shipped on October 24, 2026.
| Parameter | DND | Ratchet AI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 8 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 339 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | MATL TECH INC. | Mark Tse |
In-app purchases
DND
No in-app purchases
Ratchet AI
- Ratchet Pro Monthly$12.991 Month
- Ratchet Unlimited Monthly$19.991 Month
- Ratchet Pro Annual$89.991 Year
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- Ratchet Unlimited Annual$149.991 Year









