# SACNAS vs Cal

The clearest difference is update cadence: Cal at every 3 weeks against SACNAS's every 6 months. 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.

SACNAS ships an update every 6 months, Cal every 3 weeks. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | SACNAS | Cal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Size | 60 MB | 79 MB |
| Requires iOS | **17.0** | 17.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Society For Advancement Of Chicanos and Native Americans in Science, Inc.](https://appshunter.io/developer/1700715708) | [University of California, Irvine](https://appshunter.io/developer/643200027) |

## What reviewers say

### SACNAS

[App page](https://appshunter.io/ios/app/sacnas/id6456981839)

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

**In-app purchases:** none


### Cal

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

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

**In-app purchases:** none


## Frequently asked questions

### Is SACNAS free?

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

### Is Cal free?

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

### Do SACNAS or Cal have ads?

Neither SACNAS nor Cal shows ads.

### Which is updated more often, SACNAS or Cal?

SACNAS ships an update every 6 months, and Cal every 3 weeks. Most recently, SACNAS was updated on October 10, 2026 and Cal on October 20, 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.*