# ExtraPower vs W

The clearest difference is update cadence: ExtraPower at every 5 weeks against W's every 3 months. ExtraPower also leads on iOS requirement (8.0 vs 15.1). 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.

ExtraPower ships an update every 5 weeks, W every 3 months. The most recent releases landed on June 1, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | ExtraPower | W |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 18 MB | 47 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [宗辉 姜](https://appshunter.io/developer/1547364363) | [Western Co. S.r.l.](https://appshunter.io/developer/1088977465) |

## What reviewers say

### ExtraPower

[App page](https://appshunter.io/ios/app/extrapower/id1570376618)

Monitor your LiFePO4 batteries wirelessly from your phone or tablet. Track cycle life, view state of charge, voltage, current, and temperature. Connects via Bluetooth BLE 4.0 or later.

**Highlights:** Wireless battery connection, Cycle life tracking, State of Charge (SOC) percentage, Voltage, current, and temperature display, Bluetooth BLE 4.0+ connectivity, Up to 5-meter connectivity distance

**Features:** macOS Compatibility

**In-app purchases:** none


### W

[App page](https://appshunter.io/ios/app/w-cloud/id6738139152)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ExtraPower free?

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

### Is W free?

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

### Do ExtraPower or W have ads?

Neither ExtraPower nor W shows ads.

### Which is updated more often, ExtraPower or W?

ExtraPower ships an update every 5 weeks, and W every 3 months. Most recently, ExtraPower was updated on June 1, 2026 and W on September 13, 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.*