# Smaint vs YMOBD

The clearest difference is rating: Smaint at 4.0 against YMOBD's 2.9. Smaint also leads on in-app purchases (none vs 4) and update cadence (every 3 weeks vs every 5 weeks). YMOBD's advantage is ads (none vs shown) and review sentiment (34% vs 0%). On price and device support there is nothing between them.

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

Smaint holds the better App Store score, 4.0 against 2.9. That said, the two scores are not equally well evidenced: YMOBD has 86 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of Smaint's written reviews are positive against 34% of YMOBD's, so the app with the better star average is not the one people write more warmly about.

Smaint ships an update every 3 weeks, YMOBD every 5 weeks. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Smaint | YMOBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/smaint/id1591332818/reviews)** | [2.9 (86 ratings)](https://appshunter.io/ios/app/ymobd/id1627949735/reviews) |
| Number of ratings | 1 | **86** |
| Positive reviews | 0.0% of reviews | **34.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 95 MB | 49 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [家宜 朱](https://appshunter.io/developer/1591330514) | [shenzhen yuming](https://appshunter.io/developer/1432795415) |

## What reviewers say

### Smaint

[App page](https://appshunter.io/ios/app/smaint/id1591332818)

This app provides simple, secure, and reliable smart security monitoring products and solutions. It's designed for various environments, from busy urban areas to remote rural locations, ensuring your assets are always under your control.

**Highlights:** Smart security monitoring, Reliable surveillance products, Solutions for urban and rural areas, Asset control and security, Easy-to-use interface

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Smaint free?

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

### Is YMOBD free?

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

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

Smaint is rated higher. Smaint averages 4.0 out of 5 from 1 ratings, while YMOBD averages 2.9 from 86 ratings.

### Do Smaint or YMOBD have ads?

Smaint shows ads; YMOBD does not.

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

Smaint ships an update every 3 weeks, and YMOBD every 5 weeks. Most recently, Smaint was updated on October 14, 2026 and YMOBD on October 13, 2026.

---

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