# SMART BMS vs E

The clearest difference is review sentiment: E at 100% against SMART BMS's 17%. E also leads on rating (3.5 vs 2.2). SMART BMS's advantage is ratings volume (78 vs 2). 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.

E holds the better App Store score, 3.5 against 2.2. That said, the two scores are not equally well evidenced: SMART BMS has 78 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 17% of SMART BMS's written reviews are positive against 100% of E's.

SMART BMS ships an update every 6 weeks, E every 3 weeks. The most recent releases landed on October 22, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SMART BMS | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (78 ratings)](https://appshunter.io/ios/app/smart-bms/id1519968339/reviews) | **[3.5 (2 ratings)](https://appshunter.io/ios/app/e-bike-firmware-update/id6449957197/reviews)** |
| Number of ratings | **78** | 2 |
| Positive reviews | 17.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 65 MB | 39 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [所兵 邱](https://appshunter.io/developer/1519230775) | [CYC Motor Ltd.](https://appshunter.io/developer/1450795611) |

## What reviewers say

### 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


### E

[App page](https://appshunter.io/ios/app/e-bike-firmware-update/id6449957197)

This utility app allows users to update the firmware for CYC Motor and EBMX controllers. It ensures your electric bike's control system is running the latest software for optimal performance.

**Highlights:** Firmware updates, CYC Motor controller support, EBMX controller support, Software for electric bikes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMART BMS free?

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

### Is E free?

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

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

E is rated higher. SMART BMS averages 2.2 out of 5 from 78 ratings, while E averages 3.5 from 2 ratings.

### Do SMART BMS or E have ads?

Neither SMART BMS nor E shows ads.

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

SMART BMS ships an update every 6 weeks, and E every 3 weeks. Most recently, SMART BMS was updated on October 22, 2026 and E on October 7, 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.*