# E vs REM INVERTER

The clearest difference is update cadence: E at every 5 weeks against REM INVERTER's every 5 months. E also leads on iOS requirement (12.0 vs 15.6). 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.

E ships an update every 5 weeks, REM INVERTER every 5 months. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | E | REM INVERTER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Size | 33 MB | 32 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [建军 刘](https://appshunter.io/developer/1718671617) | [无锡乐伏网络科技有限公司](https://appshunter.io/developer/1197246083) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-bms/id6473353474)

**Features:** macOS Compatibility

**In-app purchases:** none


### REM INVERTER

[App page](https://appshunter.io/ios/app/rem-inverter/id6757182278)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is REM INVERTER free?

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

### Do E or REM INVERTER have ads?

Neither E nor REM INVERTER shows ads.

### Which is updated more often, E or REM INVERTER?

E ships an update every 5 weeks, and REM INVERTER every 5 months. Most recently, E was updated on October 17, 2026 and REM INVERTER on October 12, 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.*