# Campus Labs® Event Check vs Standard Notation Calculator

The clearest difference is update cadence: Campus Labs® Event Check at monthly against Standard Notation Calculator's every 9 months. Standard Notation Calculator's advantage is iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Campus Labs® Event Check ships an update monthly, Standard Notation Calculator every 9 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Campus Labs® Event Check | Standard Notation Calculator |
| --- | --- | --- |
| Price | Free | 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 | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 9 months |
| Monetization | Free | — |
| Size | 31 MB | 28 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Campus Labs, Inc.](https://appshunter.io/developer/320512904) | [Ahmad Sattar](https://appshunter.io/developer/1458483953) |

## What reviewers say

### 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


### Standard Notation Calculator

[App page](https://appshunter.io/ios/app/standard-notation-calculator/id1601032021)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Campus Labs® Event Check free?

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

### Is Standard Notation Calculator free?

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

### Do Campus Labs® Event Check or Standard Notation Calculator have ads?

Neither Campus Labs® Event Check nor Standard Notation Calculator shows ads.

### Which is updated more often, Campus Labs® Event Check or Standard Notation Calculator?

Campus Labs® Event Check ships an update monthly, and Standard Notation Calculator every 9 months. Most recently, Campus Labs® Event Check was updated on October 29, 2026 and Standard Notation Calculator on October 27, 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.*