# CAScience vs Roster

The clearest difference is update cadence: Roster at daily against CAScience's fortnightly. CAScience's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

CAScience ships an update fortnightly, Roster daily. Both last shipped on September 14, 2026.

## The numbers

| Metric | CAScience | Roster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Size | 53 MB | 52 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [California Science Teachers Association](https://appshunter.io/developer/1479599097) | [Tony Liu](https://appshunter.io/developer/1883428498) |

## What reviewers say

### CAScience

[App page](https://appshunter.io/ios/app/cascience/id1479599098)

**Features:** macOS Compatibility

**In-app purchases:** none


### Roster

[App page](https://appshunter.io/ios/app/roster-community-builder/id6787161499)

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

**In-app purchases:** none


## Frequently asked questions

### Is CAScience free?

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

### Is Roster free?

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

### Do CAScience or Roster have ads?

Neither CAScience nor Roster shows ads.

### Which is updated more often, CAScience or Roster?

CAScience ships an update fortnightly, and Roster daily. Most recently, CAScience was updated on September 14, 2026 and Roster on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*