# CS++ CS Foundations vs Firefly

The clearest difference is in-app purchases: Firefly at none against CS++ CS Foundations's 1. Firefly also leads on update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CS++ CS Foundations sells 1 one-off in-app purchase. Firefly asks for nothing beyond the download.

CS++ CS Foundations ships an update fortnightly, Firefly every 4 days. The most recent releases landed on October 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | CS++ CS Foundations | Firefly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/firefly-autism-play-support/id6804303032/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | — | Free |
| Size | 59 MB | 55 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Hare](https://appshunter.io/developer/1343264116) | [John Tran](https://appshunter.io/developer/6804303034) |

## What reviewers say

### CS++ CS Foundations

[App page](https://appshunter.io/ios/app/cs-plus-plus-cs-foundations/id6794195358)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full CS Foundations | $9.99 | one-time |


### Firefly

[App page](https://appshunter.io/ios/app/firefly-autism-play-support/id6804303032)

This app transforms everyday routines into short, playful activities designed to foster connection and communication with toddlers. It offers daily suggestions, simple steps, and a way to track observations, all while keeping your child's data private on your device.

**Highlights:** Short, 5-minute activities, Daily personalized suggestions, Simple step-by-step guides, Observation tracking, Gentle weekly planning, Data privacy on device, Bilingual support (English/Vietnamese)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CS++ CS Foundations free?

CS++ CS Foundations is free to download, with in-app purchases available.

### Is Firefly free?

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

### Do CS++ CS Foundations or Firefly have ads?

Neither CS++ CS Foundations nor Firefly shows ads.

### Which is updated more often, CS++ CS Foundations or Firefly?

CS++ CS Foundations ships an update fortnightly, and Firefly every 4 days. Most recently, CS++ CS Foundations was updated on October 29, 2026 and Firefly on October 7, 2026.

---

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