# illuminant app vs UDBapp

The clearest difference is update cadence: UDBapp at every 6 days against illuminant app's every 2 months. illuminant app's advantage is iOS requirement (15.0 vs 18.0). 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.

illuminant app ships an update every 2 months, UDBapp every 6 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | illuminant app | UDBapp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (162 ratings)](https://appshunter.io/ios/app/udbapp-powered-by-arc/id6762600003/reviews)** |
| Number of ratings | — | **162** |
| Positive reviews | — | 37.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | — | Free |
| Size | 25 MB | 43 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Varsity Music](https://appshunter.io/developer/1691309067) | [Ultimate Drill Book](https://appshunter.io/developer/1455826723) |

## What reviewers say

### illuminant app

[App page](https://appshunter.io/ios/app/illuminant-app/id6449975667)

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

**In-app purchases:** none


### UDBapp

[App page](https://appshunter.io/ios/app/udbapp-powered-by-arc/id6762600003)

This app allows users to view, edit, and manage drill formations for marching bands. It offers features for both performers and directors, including animated drills, coordinate sheets, and attendance tracking. The app supports offline access and integrates with drill design software.

**Highlights:** View drill animations from any perspective, Live updating coordinates and count sheets, Annotate directly on drills with notes, Attendance tracking and rehearsal schedules, Offline mode for drill access, Integration with drill design software

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

**In-app purchases:** none


## Frequently asked questions

### Is illuminant app free?

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

### Is UDBapp free?

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

### Do illuminant app or UDBapp have ads?

Neither illuminant app nor UDBapp shows ads.

### Which is updated more often, illuminant app or UDBapp?

illuminant app ships an update every 2 months, and UDBapp every 6 days. Most recently, illuminant app was updated on October 25, 2026 and UDBapp on October 28, 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.*