# Illini Sitters vs Cass District Library

The clearest difference is update cadence: Illini Sitters at every 3 days against Cass District Library's every 5 weeks. Illini Sitters also leads on iOS requirement (12.0 vs 15.6). 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.

Illini Sitters ships an update every 3 days, Cass District Library every 5 weeks. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Illini Sitters | Cass District Library |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 weeks |
| Size | 16 MB | 50 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Nannyville, LLC](https://appshunter.io/developer/1703856114) | [Cass District Library](https://appshunter.io/developer/1807037660) |

## What reviewers say

### Illini Sitters

[App page](https://appshunter.io/ios/app/illini-sitters/id6463043050)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Cass District Library

[App page](https://appshunter.io/ios/app/cass-district-library/id6744314871)

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

**In-app purchases:** none


## Frequently asked questions

### Is Illini Sitters free?

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

### Is Cass District Library free?

Cass District Library is free to download, with no in-app purchases.

### Do Illini Sitters or Cass District Library have ads?

Neither Illini Sitters nor Cass District Library shows ads.

### Which is updated more often, Illini Sitters or Cass District Library?

Illini Sitters ships an update every 3 days, and Cass District Library every 5 weeks. Most recently, Illini Sitters was updated on October 6, 2026 and Cass District Library 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.*