# Butterfly Challenge vs Chalkfit

The clearest difference is update cadence: Chalkfit at every 2 months against Butterfly Challenge's every 63 months. Butterfly Challenge's advantage is iOS requirement (13.0 vs 15.1). 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.

Butterfly Challenge ships an update every 63 months, Chalkfit every 2 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Butterfly Challenge | Chalkfit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (51 ratings)](https://appshunter.io/ios/app/butterfly-challenge/id1429201714/reviews)** | — |
| Number of ratings | **51** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 63 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 62 MB | 30 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [implicitli, LLC](https://appshunter.io/developer/1131851058) | [Nilabh Ohol](https://appshunter.io/developer/1896724307) |

## What reviewers say

### Butterfly Challenge

[App page](https://appshunter.io/ios/app/butterfly-challenge/id1429201714)

This program offers a 14-day challenge designed to improve goalie flexibility with daily 10-minute sessions. It focuses on four key pillars of flexibility, providing a structured approach to enhance performance and reduce injury risk.

**Highlights:** 14-day structured program, Daily 10-minute sessions, Focus on 4 pillars of flexibility, Goalie-specific drills, Video tutorials

**Features:** macOS Compatibility

**In-app purchases:** none


### Chalkfit

[App page](https://appshunter.io/ios/app/chalkfit/id6770208152)

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

**In-app purchases:** none


## Frequently asked questions

### Is Butterfly Challenge free?

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

### Is Chalkfit free?

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

### Do Butterfly Challenge or Chalkfit have ads?

Neither Butterfly Challenge nor Chalkfit shows ads.

### Which is updated more often, Butterfly Challenge or Chalkfit?

Butterfly Challenge ships an update every 63 months, and Chalkfit every 2 months. Most recently, Butterfly Challenge was updated on November 2, 2026 and Chalkfit on November 5, 2026.

---

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