# SM Signal vs EE

The clearest difference is update cadence: EE at every 2 months against SM Signal's every 11 months. SM Signal's advantage is iOS requirement (8.0 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SM Signal ships an update every 11 months, EE every 2 months. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SM Signal | EE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.1 (10 ratings)](https://appshunter.io/ios/app/ee-bms/id1558940642/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 5 MB | 7 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Foshan Sanmak Lighting](https://appshunter.io/developer/1276059187) | [步泽 王](https://appshunter.io/developer/1517358781) |

## What reviewers say

### SM Signal

[App page](https://appshunter.io/ios/app/sm-signal/id1260416403)

**Features:** macOS Compatibility

**In-app purchases:** none


### EE

[App page](https://appshunter.io/ios/app/ee-bms/id1558940642)

This application serves as a battery management system, acting as a crucial link between batteries and users. It focuses on protecting secondary batteries by preventing overcharging and over-discharging, thereby enhancing battery utilization. It is suitable for various lithium battery products like electric vehicles, scooters, robots, and drones.

**Highlights:** Battery protection, Prevents overcharging, Prevents over-discharging, Increases battery utilization, Supports various lithium batteries, Ideal for EVs and drones

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SM Signal free?

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

### Is EE free?

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

### Do SM Signal or EE have ads?

Neither SM Signal nor EE shows ads.

### Which is updated more often, SM Signal or EE?

SM Signal ships an update every 11 months, and EE every 2 months. Most recently, SM Signal was updated on October 26, 2026 and EE on October 21, 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.*