# ExtraPower vs Cart IoT

The clearest difference is monetization model: ExtraPower at free against Cart IoT's free with in-app purchases. ExtraPower also leads on iOS requirement (8.0 vs 16.6). 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.

ExtraPower ships an update every 5 weeks, Cart IoT monthly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ExtraPower | Cart IoT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cart-iot/id6755539461/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 8 MB |
| Requires iOS | **8.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [宗辉 姜](https://appshunter.io/developer/1547364363) | [Cart IoT](https://appshunter.io/developer/1854464570) |

## 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


### Cart IoT

[App page](https://appshunter.io/ios/app/cart-iot/id6755539461)

Monitor and control your golf cart chargers remotely. Get real-time insights into charge status, temperature, and voltage, with automatic safety cutoffs and instant alerts. Manage individual carts or entire fleets from anywhere.

**Highlights:** Real-time charge status monitoring, Temperature and voltage tracking, Remote control of chargers, Automatic safety cutoffs, Instant push notifications, Fleet management dashboard, Historical charging data

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ExtraPower free?

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

### Is Cart IoT free?

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

### Do ExtraPower or Cart IoT have ads?

Neither ExtraPower nor Cart IoT shows ads.

### Which is updated more often, ExtraPower or Cart IoT?

ExtraPower ships an update every 5 weeks, and Cart IoT monthly. Most recently, ExtraPower was updated on October 20, 2026 and Cart IoT on October 24, 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.*