# Cal vs Innovation Loop

The clearest difference is update cadence: Cal at every 3 weeks against Innovation Loop's every 6 months. Cal also leads on iOS requirement (15.1 vs 18.2). 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.

Cal ships an update every 3 weeks, Innovation Loop every 6 months. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Cal | Innovation Loop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Size | 63 MB | 88 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [University of California, Irvine](https://appshunter.io/developer/643200027) | [California State University, Northridge](https://appshunter.io/developer/677332864) |

## What reviewers say

### Cal

[App page](https://appshunter.io/ios/app/cal-bridge-program/id6475701864)

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

**In-app purchases:** none


### Innovation Loop

[App page](https://appshunter.io/ios/app/innovation-loop/id6749651668)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cal free?

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

### Is Innovation Loop free?

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

### Do Cal or Innovation Loop have ads?

Neither Cal nor Innovation Loop shows ads.

### Which is updated more often, Cal or Innovation Loop?

Cal ships an update every 3 weeks, and Innovation Loop every 6 months. Most recently, Cal was updated on October 4, 2026 and Innovation Loop on October 5, 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.*