# EnerKey vs Octopus BMS Lite

The clearest difference is update cadence: EnerKey at every 2 months against Octopus BMS Lite's every 12 months. 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.

EnerKey ships an update every 2 months, Octopus BMS Lite every 12 months. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | EnerKey | Octopus BMS Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/enerkey/id6447932138/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 12 months |
| Monetization | Free | — |
| Size | 31 MB | 32 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Jinwei Power Source Technology Co., Ltd](https://appshunter.io/developer/1683049152) | [Shanghai Xinzhiheng Electronic Technology Co., Ltd.](https://appshunter.io/developer/1745374020) |

## What reviewers say

### EnerKey

[App page](https://appshunter.io/ios/app/enerkey/id6447932138)

Monitor and control your lithium battery system in real-time. View current status, historical data, and adjust protective parameters to ensure safe operation. Receive instant alerts for any abnormal conditions.

**Highlights:** Real-time battery monitoring, Historical data inquiry, Parameter setting, Alarm notifications, Voltage, current, and temperature display

**Features:** macOS Compatibility

**In-app purchases:** none


### Octopus BMS Lite

[App page](https://appshunter.io/ios/app/octopus-bms-lite/id6505063095)

**In-app purchases:** none


## Frequently asked questions

### Is EnerKey free?

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

### Is Octopus BMS Lite free?

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

### Do EnerKey or Octopus BMS Lite have ads?

Neither EnerKey nor Octopus BMS Lite shows ads.

### Which is updated more often, EnerKey or Octopus BMS Lite?

EnerKey ships an update every 2 months, and Octopus BMS Lite every 12 months. Most recently, EnerKey was updated on June 1, 2026 and Octopus BMS Lite on September 9, 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.*