# Resilience Performance App vs Flexibull

Resilience Performance App and Flexibull are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Resilience Performance App | Flexibull |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 71 MB | 73 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Resilience Performance](https://appshunter.io/developer/1709681619) | [Flexibull Fitness](https://appshunter.io/developer/1816282485) |

## What reviewers say

### Resilience Performance App

[App page](https://appshunter.io/ios/app/resilience-performance-app/id6468266920)

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

**In-app purchases:** none


### Flexibull

[App page](https://appshunter.io/ios/app/flexibull/id6746347632)

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

**In-app purchases:** none


## Frequently asked questions

### Is Resilience Performance App free?

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

### Is Flexibull free?

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

### Do Resilience Performance App or Flexibull have ads?

Neither Resilience Performance App nor Flexibull shows ads.

### Which is updated more often, Resilience Performance App or Flexibull?

Resilience Performance App ships an update fortnightly, and Flexibull fortnightly. Most recently, Resilience Performance App was updated on September 11, 2026 and Flexibull on September 9, 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.*