# TPMSII vs SMART BMS

The clearest difference is rating: TPMSII at 3.7 against SMART BMS's 2.1. TPMSII also leads on review sentiment (35% vs 11%) and iOS requirement (9.0 vs 11.0). SMART BMS's advantage is ratings volume (76 vs 6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TPMSII holds the better App Store score, 3.7 against 2.1. That said, the two scores are not equally well evidenced: SMART BMS has 76 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 35% of TPMSII's written reviews are positive against 11% of SMART BMS's.

TPMSII ships an update every 2 months, SMART BMS every 6 weeks. The most recent releases landed on June 11, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | TPMSII | SMART BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/tpmsii/id1436006976/reviews)** | [2.1 (76 ratings)](https://appshunter.io/ios/app/smart-bms/id1519968339/reviews) |
| Number of ratings | 6 | **76** |
| Positive reviews | **35.3% of reviews** | 11.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 124 MB | 65 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Chaoyue Technology Development Co.,Ltd](https://appshunter.io/developer/1223781320) | [所兵 邱](https://appshunter.io/developer/1519230775) |

## What reviewers say

### TPMSII

[App page](https://appshunter.io/ios/app/tpmsii/id1436006976)

Monitor your car's tire pressure and temperature in real-time using your smartphone. Receive timely alerts for abnormal conditions to ensure safer driving. Requires Bluetooth 4.0 and a compatible sensor.

**Highlights:** Real-time tire pressure monitoring, Real-time tire temperature monitoring, Bluetooth sensor integration, Abnormal data alerts, Background monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### SMART BMS

[App page](https://appshunter.io/ios/app/smart-bms/id1519968339)

Connect to and manage your lithium battery via Bluetooth. Monitor battery status, query information, and set safety parameters. Receive alerts for battery faults and track their occurrences.

**Highlights:** Bluetooth battery connection, Battery status query, Fault alarm monitoring, Safety parameter settings, Password protection for settings

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Functional app
- 👍 Easy to use
- 🔋 Works with lithium batteries
- 💡 Displays cell balance information

**What reviewers complain about**

- 🐛 Connection issues
- 🐛 Crashes and freezes
- 🐛 Unreliable data
- 🐛 Compatibility problems with updates
- 🔋 Drains phone battery

**Reported bugs**

- Bluetooth connectivity problems
- Incorrect series/parallel configuration display
- Firmware update issues
- Inconsistent data readings
- Inability to change settings

**Requested features**

- Dark mode option
- Logging and historical data
- Better parameter customization
- Improved battery monitoring metrics
- Apple Watch support


## Frequently asked questions

### Is TPMSII free?

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

### Is SMART BMS free?

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

### Which has better reviews, TPMSII or SMART BMS?

TPMSII is rated higher. TPMSII averages 3.7 out of 5 from 6 ratings, while SMART BMS averages 2.1 from 76 ratings.

### Do TPMSII or SMART BMS have ads?

Neither TPMSII nor SMART BMS shows ads.

### Which is updated more often, TPMSII or SMART BMS?

TPMSII ships an update every 2 months, and SMART BMS every 6 weeks. Most recently, TPMSII was updated on June 11, 2026 and SMART BMS on September 14, 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.*