# Wattify vs Charge.AI

The clearest difference is update cadence: Wattify at monthly against Charge.AI's every 3 months. Charge.AI's advantage is iOS requirement (12.0 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.

Wattify ships an update monthly, Charge.AI every 3 months. Both last shipped on October 1, 2026.

## The numbers

| Metric | Wattify | Charge.AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Size | 69 MB | 64 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Wattify BV](https://appshunter.io/developer/1721711884) | [Mulytic Labs GmbH](https://appshunter.io/developer/1731763777) |

## What reviewers say

### Wattify

[App page](https://appshunter.io/ios/app/wattify/id6474477039)

**Features:** macOS Compatibility

**In-app purchases:** none


### Charge.AI

[App page](https://appshunter.io/ios/app/chargeai/id6478091732)

**In-app purchases:** none


## Frequently asked questions

### Is Wattify free?

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

### Is Charge.AI free?

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

### Do Wattify or Charge.AI have ads?

Neither Wattify nor Charge.AI shows ads.

### Which is updated more often, Wattify or Charge.AI?

Wattify ships an update monthly, and Charge.AI every 3 months. Most recently, Wattify was updated on October 1, 2026 and Charge.AI on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*