# WattUp vs Realm App

The clearest difference is review sentiment: Realm App at 100% against WattUp's 0%. WattUp's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (12.4 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

WattUp ships an update every 5 weeks, Realm App every 3 months. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | WattUp | Realm App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/wattup/id1576818379/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 22 MB | 60 MB |
| Requires iOS | **12.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Energous Corporation](https://appshunter.io/developer/1576818381) | [Globalstar Inc](https://appshunter.io/developer/881495413) |

## What reviewers say

### WattUp

[App page](https://appshunter.io/ios/app/wattup/id1576818379)

This application allows users to scan for and connect to wireless charging devices using Bluetooth. It enables configuration, control, and monitoring of transmitters and receivers, along with software updates for enabled devices.

**Highlights:** Scan for WattUp enabled devices, Connect via Bluetooth Low Energy (BLE), Configure transmitters and receivers, Control charging devices, Monitor device status, Update device software

**Features:** Vision Pro support

**In-app purchases:** none


### Realm App

[App page](https://appshunter.io/ios/app/realm-app/id6443846471)

Configure and update your ST150 Satellite Transmitter with this application. It provides essential tools for managing your device's settings and ensuring it's running the latest software.

**Highlights:** Update ST150 Satellite Transmitter, Configure device settings, Manage transmitter configuration, Access device updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WattUp free?

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

### Is Realm App free?

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

### Do WattUp or Realm App have ads?

Neither WattUp nor Realm App shows ads.

### Which is updated more often, WattUp or Realm App?

WattUp ships an update every 5 weeks, and Realm App every 3 months. Most recently, WattUp was updated on September 21, 2026 and Realm App on September 16, 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.*