# YMOBD vs Tkeeper

The clearest difference is rating: YMOBD at 2.9 against Tkeeper's 2.0. YMOBD also leads on ratings volume (85 vs 3). Tkeeper's advantage is in-app purchases (none vs 4) and review sentiment (50% vs 34%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. YMOBD sells 4 one-off in-app purchases. Tkeeper asks for nothing beyond the download.

YMOBD holds the better App Store score, 2.9 against 2.0. That said, the two scores are not equally well evidenced: YMOBD has 85 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 34% of YMOBD's written reviews are positive against 50% of Tkeeper's, so the app with the better star average is not the one people write more warmly about.

YMOBD ships an update every 5 weeks, Tkeeper every 3 weeks. The most recent releases landed on September 25, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | YMOBD | Tkeeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (85 ratings)](https://appshunter.io/ios/app/ymobd/id1627949735/reviews)** | [2.0 (3 ratings)](https://appshunter.io/ios/app/tkeeper/id6466933990/reviews) |
| Number of ratings | **85** | 3 |
| Positive reviews | 34.3% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 49 MB | 51 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [shenzhen yuming](https://appshunter.io/developer/1432795415) | [鲜境电子有限公司](https://appshunter.io/developer/1683983410) |

## What reviewers say

### YMOBD

[App page](https://appshunter.io/ios/app/ymobd/id1627949735)

This tool connects to your car's OBD adapter via Bluetooth to collect real-time engine data, read fault codes, and provide solutions. It also records driving data, analyzes performance, and offers a HUD display for a safer and more enjoyable driving experience.

**Highlights:** Real-time engine data collection, Vehicle fault code reading and solutions, Driving data recording and analysis, Vehicle performance testing (acceleration, braking), HUD display function, Day and night modes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 车辆年检模拟 | $0.99 | one-time |
| YMOBD-business expansion | $1.99 | one-time |
| YMOBD-Battery monitoring | $2.99 | one-time |
| Super Car Sound | $5.99 | one-time |

**What reviewers like**

- 👍 Works well with Toyota
- 👍 Accurate with many functions
- 👍 Amazing for fixing cars
- 👍 Useful for live data monitoring
- 👍 Great and very detailed

**What reviewers complain about**

- 🐛 Scam, pay again for add-on
- 🐛 Crashes on iPhone 17 Pro
- 🐛 Requires personal info sharing
- 🐛 Does not connect at all
- 🐛 Junk, doesn't read OBD2 reader

**Reported bugs**

- App crashes on iPhone 17 Pro
- Purchased add-on requires payment again
- Contact section not working
- App crashes every time on iPhone 17 Pro
- Does not connect at all

**Requested features**

- Dark Mode support
- Landscape mode support
- Store data for comparison over time
- Summary of vehicle diagnostics without connection
- Run in background feature


### Tkeeper

[App page](https://appshunter.io/ios/app/tkeeper/id6466933990)

This app connects to Bluetooth temperature and humidity data loggers to synchronize historical data. It allows configuration of device parameters for data collection and exports reports in PDF and CSV formats. Data and user information can be synchronized to cloud storage via user accounts.

**Highlights:** Connect Bluetooth data loggers, Synchronize history data, Configure device parameters, Export PDF and CSV reports, Cloud data synchronization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is YMOBD free?

YMOBD is free to download, with in-app purchases available.

### Is Tkeeper free?

Tkeeper is free to download, with no in-app purchases.

### Which has better reviews, YMOBD or Tkeeper?

YMOBD is rated higher. YMOBD averages 2.9 out of 5 from 85 ratings, while Tkeeper averages 2.0 from 3 ratings.

### Do YMOBD or Tkeeper have ads?

Neither YMOBD nor Tkeeper shows ads.

### Which is updated more often, YMOBD or Tkeeper?

YMOBD ships an update every 5 weeks, and Tkeeper every 3 weeks. Most recently, YMOBD was updated on September 25, 2026 and Tkeeper on September 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*