# AVR Tutorial Pro vs Campus Labs® Event Check

The clearest difference is price: Campus Labs® Event Check at Free against AVR Tutorial Pro's $1.99. Campus Labs® Event Check also leads on in-app purchases (none vs 10) and update cadence (monthly vs every 4 months). AVR Tutorial Pro's advantage is iOS requirement (9.0 vs 15.0). On ads and device support there is nothing between them.

Campus Labs® Event Check is free to download; AVR Tutorial Pro costs $1.99 up front. AVR Tutorial Pro sells 10 one-off in-app purchases. Campus Labs® Event Check asks for nothing beyond the download.

AVR Tutorial Pro ships an update every 4 months, Campus Labs® Event Check monthly. The most recent releases landed on October 10, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | AVR Tutorial Pro | Campus Labs® Event Check |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.8 (1.5K ratings)](https://appshunter.io/ios/app/campus-labs-event-check-in/id1221503400/reviews)** |
| Number of ratings | — | **1.5K** |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Free |
| Size | 33 MB | 31 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Campus Labs, Inc.](https://appshunter.io/developer/320512904) |

## What reviewers say

### AVR Tutorial Pro

[App page](https://appshunter.io/ios/app/avr-tutorial-pro/id1066643368)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SPI OLED | $1.99 | one-time |
| Wifi home automation | $1.99 | one-time |
| I2C OLED | $1.99 | one-time |
| 2.2" TFT | $1.99 | one-time |
| Lora home automation | $1.99 | one-time |
| gps project | $2.99 | one-time |
| Home automation using Siri | $2.99 | one-time |
| Home automation using Google | $2.99 | one-time |
| BT home automation | $4.99 | one-time |
| BLE home automation | $4.99 | one-time |


### Campus Labs® Event Check

[App page](https://appshunter.io/ios/app/campus-labs-event-check-in/id1221503400)

This app allows campus event hosts to securely check students into events using their mobile devices. It acts as a companion to a web application, streamlining the event attendance process for organizers.

**Highlights:** Mobile event check-in, Secure student entry, Companion to web app, Event host tool

**In-app purchases:** none


## Frequently asked questions

### Is AVR Tutorial Pro free?

AVR Tutorial Pro costs $1.99, and also offers in-app purchases.

### Is Campus Labs® Event Check free?

Campus Labs® Event Check is free to download, with no in-app purchases.

### Do AVR Tutorial Pro or Campus Labs® Event Check have ads?

Neither AVR Tutorial Pro nor Campus Labs® Event Check shows ads.

### Which is updated more often, AVR Tutorial Pro or Campus Labs® Event Check?

AVR Tutorial Pro ships an update every 4 months, and Campus Labs® Event Check monthly. Most recently, AVR Tutorial Pro was updated on October 10, 2026 and Campus Labs® Event Check on October 26, 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.*