# SpeedOhMeter vs Quad Calcs

The clearest difference is in-app purchases: Quad Calcs at none against SpeedOhMeter's 1. Quad Calcs also leads on update cadence (every 2 weeks vs every 6 months). SpeedOhMeter's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.8.3). On price and device support there is nothing between them.

Both are free to download. SpeedOhMeter sells 1 one-off in-app purchase. Quad Calcs asks for nothing beyond the download.

SpeedOhMeter ships an update every 6 months, Quad Calcs every 2 weeks. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SpeedOhMeter | Quad Calcs |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Size | 45 MB | 36 MB |
| Requires iOS | **12.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aprilred SRL](https://appshunter.io/developer/1057855420) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### SpeedOhMeter

[App page](https://appshunter.io/ios/app/speedohmeter/id1642285328)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No ads | $6.99 | one-time |


### Quad Calcs

[App page](https://appshunter.io/ios/app/quad-calcs/id6741951453)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SpeedOhMeter free?

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

### Is Quad Calcs free?

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

### Do SpeedOhMeter or Quad Calcs have ads?

Quad Calcs shows ads; SpeedOhMeter does not.

### Which is updated more often, SpeedOhMeter or Quad Calcs?

SpeedOhMeter ships an update every 6 months, and Quad Calcs every 2 weeks. Most recently, SpeedOhMeter was updated on October 9, 2026 and Quad Calcs on October 4, 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.*