# WALT Calculator vs QuickScan Pro

The clearest difference is in-app purchases: WALT Calculator at none against QuickScan Pro's 1. WALT Calculator also leads on ads (none vs shown) and iOS requirement (8.0 vs 14.0). QuickScan Pro's advantage is update cadence (every 3 days vs every 3 months). On price and device support there is nothing between them.

Both are free to download. QuickScan Pro sells 1 in-app purchase, starting at $0.99 per month. WALT Calculator asks for nothing beyond the download.

WALT Calculator ships an update every 3 months, QuickScan Pro every 3 days. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | WALT Calculator | QuickScan Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/walt-calculator/id815488678/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 14 MB | 15 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeff McClay](https://appshunter.io/developer/815488681) | [Moca LLC](https://appshunter.io/developer/1442554084) |

## What reviewers say

### WALT Calculator

[App page](https://appshunter.io/ios/app/walt-calculator/id815488678)

This utility app offers a suite of specialized calculators for weather, location, and target-related computations. Features include density altitude, field elevation, geographic coordinate conversion, distance calculation, and a target calculator for shooting sports.

**Highlights:** Density Altitude Calculator, Field Elevation Calculator, Geographic Coordinates Converter, Geographic Distance Calculator, Target Calculator

**Features:** macOS Compatibility

**In-app purchases:** none


### QuickScan Pro

[App page](https://appshunter.io/ios/app/quickscan-pro-qr-code-reader/id6503713080)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | per month |


## Frequently asked questions

### Is WALT Calculator free?

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

### Is QuickScan Pro free?

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

### Do WALT Calculator or QuickScan Pro have ads?

QuickScan Pro shows ads; WALT Calculator does not.

### Which is updated more often, WALT Calculator or QuickScan Pro?

WALT Calculator ships an update every 3 months, and QuickScan Pro every 3 days. Most recently, WALT Calculator was updated on October 5, 2026 and QuickScan Pro on October 6, 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.*