# QRCode Plus vs ViDiLabs Calc

The clearest difference is price: QRCode Plus at Free against ViDiLabs Calc's $18.99. QRCode Plus also leads on iOS requirement (7.0 vs 12.0). ViDiLabs Calc's advantage is update cadence (every 4 months vs every 16 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

QRCode Plus is free to download; ViDiLabs Calc costs $18.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.0 for QRCode Plus against 3.0 for ViDiLabs Calc. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

QRCode Plus ships an update every 16 months, ViDiLabs Calc every 4 months. The most recent releases landed on August 14, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | QRCode Plus | ViDiLabs Calc |
| --- | --- | --- |
| Price | **Free** | $18.99 |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/qrcode-plus/id937791963/reviews) | [3.0 (1 ratings)](https://appshunter.io/ios/app/vidilabs-calc/id1054879397/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 4 months** |
| Monetization | **Free** | Paid |
| Size | 4 MB | 9 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [典 熊](https://appshunter.io/developer/812126908) | [ViDi Labs Pty Ltd](https://appshunter.io/developer/1054879396) |

## What reviewers say

### QRCode Plus

[App page](https://appshunter.io/ios/app/qrcode-plus/id937791963)

This tool transforms your device into a code scanner and verifier. It can check ticket validity by scanning codes and submitting them to a specified URL, reacting based on the server's response. It also functions as a general scanner for various code types.

**Highlights:** Scan QR, Bar, and PDF417 codes, Verify ticket validity, Submit scanned codes to a URL, Customizable submission method and key, Reacts to server responses (accept/reject)

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

**In-app purchases:** none


### ViDiLabs Calc

[App page](https://appshunter.io/ios/app/vidilabs-calc/id1054879397)

This app calculates necessary camera lens focal lengths and object distances for optimal pixel density, aiding in compliance with surveillance standards. It also estimates storage capacity for video recordings and helps analyze moving object blur for clearer image capture.

**Highlights:** Calculate required focal length and object distance, Determine required storage capacity, Pixel density calculation for identification and recognition, Database of commercially available sensors, Manual entry for custom variables, Moving object blur analysis, Pre-set pixel densities for common projects

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

**In-app purchases:** none


## Frequently asked questions

### Is QRCode Plus free?

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

### Is ViDiLabs Calc free?

ViDiLabs Calc costs $18.99, with no in-app purchases.

### Which has better reviews, QRCode Plus or ViDiLabs Calc?

QRCode Plus and ViDiLabs Calc are both rated 3.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do QRCode Plus or ViDiLabs Calc have ads?

Neither QRCode Plus nor ViDiLabs Calc shows ads.

### Which is updated more often, QRCode Plus or ViDiLabs Calc?

QRCode Plus ships an update every 16 months, and ViDiLabs Calc every 4 months. Most recently, QRCode Plus was updated on August 14, 2026 and ViDiLabs Calc on September 15, 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.*