# Ohmly vs Chargemetrix

The clearest difference is update cadence: Chargemetrix at every 5 days against Ohmly's every 3 weeks. Chargemetrix also leads on iOS requirement (15 vs 26.0). 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.

Ohmly ships an update every 3 weeks, Chargemetrix every 5 days. The most recent releases landed on October 27, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Ohmly | Chargemetrix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 7 MB | 24 MB |
| Requires iOS | 26.0 | **15** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Adam Wilkie](https://appshunter.io/developer/893612520) | [Metrix Advanced Technologies](https://appshunter.io/developer/1666953245) |

## What reviewers say

### Ohmly

[App page](https://appshunter.io/ios/app/ohmly-electrical-calculator/id6447774551)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Chargemetrix

[App page](https://appshunter.io/ios/app/chargemetrix/id6478617031)

**In-app purchases:** none


## Frequently asked questions

### Is Ohmly free?

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

### Is Chargemetrix free?

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

### Do Ohmly or Chargemetrix have ads?

Neither Ohmly nor Chargemetrix shows ads.

### Which is updated more often, Ohmly or Chargemetrix?

Ohmly ships an update every 3 weeks, and Chargemetrix every 5 days. Most recently, Ohmly was updated on October 27, 2026 and Chargemetrix on September 20, 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.*