# Campus Labs® Event Check vs Delta

The clearest difference is rating: Campus Labs® Event Check at 4.8 against Delta's 3.1. Campus Labs® Event Check also leads on in-app purchases (none vs 3) and ratings volume (1.5K vs 7). Delta's advantage is review sentiment (67% vs 43%) and iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Delta sells 3 one-off in-app purchases. Campus Labs® Event Check asks for nothing beyond the download.

Campus Labs® Event Check holds the better App Store score, 4.8 against 3.1. That said, the two scores are not equally well evidenced: Campus Labs® Event Check has 1.5K ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 43% of Campus Labs® Event Check's written reviews are positive against 67% of Delta's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Campus Labs® Event Check | Delta |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.5K ratings)](https://appshunter.io/ios/app/campus-labs-event-check-in/id1221503400/reviews)** | [3.1 (7 ratings)](https://appshunter.io/ios/app/delta-algorithms/id1436506800/reviews) |
| Number of ratings | **1.5K** | 7 |
| Positive reviews | 42.9% of reviews | **66.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | **Free** | Freemium |
| Size | 31 MB | 5 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Campus Labs, Inc.](https://appshunter.io/developer/320512904) | [Groupe MINASTE](https://appshunter.io/developer/1378426984) |

## 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


### Delta

[App page](https://appshunter.io/ios/app/delta-algorithms/id1436506800)

This app helps users solve math problems by creating and executing algorithms. It offers tools for homework checking, test preparation, and creating custom quizzes. Users can save, share, and download algorithms via the cloud.

**Highlights:** Create algorithms with natural language, Execute algorithms to solve math problems, Create and download custom quizzes, Save and share algorithms, Cloud synchronization for algorithms

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation 1 | $0.99 | one-time |
| Donation 2 | $2.99 | one-time |
| Donation 3 | $4.99 | one-time |


## Frequently asked questions

### Is Campus Labs® Event Check free?

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

### Is Delta free?

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

### Which has better reviews, Campus Labs® Event Check or Delta?

Campus Labs® Event Check is rated higher. Campus Labs® Event Check averages 4.8 out of 5 from 1.5K ratings, while Delta averages 3.1 from 7 ratings.

### Do Campus Labs® Event Check or Delta have ads?

Neither Campus Labs® Event Check nor Delta shows ads.

### Which is updated more often, Campus Labs® Event Check or Delta?

Campus Labs® Event Check ships an update monthly, and Delta monthly. Most recently, Campus Labs® Event Check was updated on November 6, 2026 and Delta on November 2, 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.*