# E_Test vs SMART BMS

The clearest difference is rating: SMART BMS at 2.1 against E_Test's 1.8. E_Test's advantage is iOS requirement (9.0 vs 11.0). On price, review sentiment, ratings volume and ads there is nothing between them.

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

SMART BMS holds the better App Store score, 2.1 against 1.8. Both are backed by a comparable volume of ratings — 31 and 76 respectively. Written reviews point the same way: 15% of E_Test's written reviews are positive against 17% of SMART BMS's.

## The numbers

| Metric | E_Test | SMART BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (31 ratings)](https://appshunter.io/ios/app/e-test/id1478623332/reviews) | **[2.1 (76 ratings)](https://appshunter.io/ios/app/smart-bms/id1519968339/reviews)** |
| Number of ratings | 31 | **76** |
| Positive reviews | 15.4% of reviews | **17.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Monetization | Free | Free |
| Size | 20 MB | 65 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杰 唐](https://appshunter.io/developer/1475646045) | [所兵 邱](https://appshunter.io/developer/1519230775) |

## What reviewers say

### E_Test

[App page](https://appshunter.io/ios/app/e-test/id1478623332)

This app connects to Bluetooth meters to display real-time voltage, current, and power consumption. It allows users to view historical data through curves and supports DC, AC, and USB meters for simple, direct connection.

**Highlights:** Real-time voltage, current, power display, View power consumption curves, Connects to DC, AC, USB meters, Simple Bluetooth connection, Historical data viewing

**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 E_Test free?

E_Test 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, E_Test or SMART BMS?

SMART BMS is rated higher. E_Test averages 1.8 out of 5 from 31 ratings, while SMART BMS averages 2.1 from 76 ratings.

### Do E_Test or SMART BMS have ads?

Neither E_Test nor SMART BMS shows ads.

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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.*