# RE vs Wattsup!

The clearest difference is update cadence: Wattsup! at monthly against RE's every 4 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.

RE ships an update every 4 months, Wattsup! monthly. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | RE | Wattsup! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Size | 119 MB | 116 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Silver Rock Capital Sarl](https://appshunter.io/developer/1820588682) | [MOTIONLABS](https://appshunter.io/developer/1827161663) |

## What reviewers say

### RE

[App page](https://appshunter.io/ios/app/re-volt/id6747282745)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Wattsup!

[App page](https://appshunter.io/ios/app/wattsup/id6748716768)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is RE free?

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

### Is Wattsup! free?

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

### Do RE or Wattsup! have ads?

Neither RE nor Wattsup! shows ads.

### Which is updated more often, RE or Wattsup!?

RE ships an update every 4 months, and Wattsup! monthly. Most recently, RE was updated on September 10, 2026 and Wattsup! on September 21, 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.*