# Convertools vs ChargeWatt

The clearest difference is in-app purchases: Convertools at none against ChargeWatt's 1. Convertools also leads on iOS requirement (12.0 vs 18.0). ChargeWatt's advantage is update cadence (every 2 days vs every 39 months). On price, ads and device support there is nothing between them.

Both are free to download. ChargeWatt sells 1 one-off in-app purchase. Convertools asks for nothing beyond the download.

Convertools ships an update every 39 months, ChargeWatt every 2 days. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Convertools | ChargeWatt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chargewatt-charging-speed/id6820282553/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 56 MB | 32 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ying Pheng Neoh](https://appshunter.io/developer/1641223056) | [Osman Cengeri](https://appshunter.io/developer/1807592099) |

## What reviewers say

### Convertools

[App page](https://appshunter.io/ios/app/convertools/id6444143677)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChargeWatt

[App page](https://appshunter.io/ios/app/chargewatt-charging-speed/id6820282553)

Monitor your iPhone's charging speed in watts and track your charging history. Compare chargers, analyze battery health, and receive notifications when your desired charge level is reached. Features include Live Activity, widgets, and Siri integration.

**Highlights:** Real-time charging speed in watts, Charge history recording, Charger comparison, Battery health tracking, Customizable charge alarms, Live Activity and widgets, Data export to CSV

**Features:** Family Sharing, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChargeWatt Pro | $4.99 | one-time |


## Frequently asked questions

### Is Convertools free?

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

### Is ChargeWatt free?

ChargeWatt is free to download, with in-app purchases available.

### Do Convertools or ChargeWatt have ads?

Neither Convertools nor ChargeWatt shows ads.

### Which is updated more often, Convertools or ChargeWatt?

Convertools ships an update every 39 months, and ChargeWatt every 2 days. Most recently, Convertools was updated on November 7, 2026 and ChargeWatt on November 10, 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.*