# ProGraph Calculator vs Quad Map

The clearest difference is ads: ProGraph Calculator at none against Quad Map's shown. Quad Map's advantage is update cadence (every 2 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ProGraph Calculator ships an update every 3 months, Quad Map every 2 weeks. Both last shipped on October 5, 2026.

## The numbers

| Metric | ProGraph Calculator | Quad Map |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 1 MB | 35 MB |
| Requires iOS | 16.0 | **15.8.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Pingleton](https://appshunter.io/developer/1584719976) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### ProGraph Calculator

[App page](https://appshunter.io/ios/app/prograph-calculator/id1629338359)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quad Map

[App page](https://appshunter.io/ios/app/quad-map/id6742085652)

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

**In-app purchases:** none


## Frequently asked questions

### Is ProGraph Calculator free?

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

### Is Quad Map free?

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

### Do ProGraph Calculator or Quad Map have ads?

Quad Map shows ads; ProGraph Calculator does not.

### Which is updated more often, ProGraph Calculator or Quad Map?

ProGraph Calculator ships an update every 3 months, and Quad Map every 2 weeks. Most recently, ProGraph Calculator was updated on October 5, 2026 and Quad Map on October 5, 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.*