# Butterfly Challenge vs SHIFT Performance

Butterfly Challenge and SHIFT Performance are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Butterfly Challenge | SHIFT Performance |
| --- | --- | --- |
| 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 | — |
| Monetization | Free | — |
| Size | 62 MB | 35 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [implicitli, LLC](https://appshunter.io/developer/1131851058) | [11852680 Canada Inc.](https://appshunter.io/developer/1806217733) |

## 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


### SHIFT Performance

[App page](https://appshunter.io/ios/app/shift-performance/id6744127298)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Butterfly Challenge free?

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

### Is SHIFT Performance free?

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

### Do Butterfly Challenge or SHIFT Performance have ads?

Neither Butterfly Challenge nor SHIFT Performance shows ads.

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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.*