# Strength Block Training App vs Flexibull

Strength Block Training 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.

Strength Block Training App ships an update every 2 weeks, Flexibull fortnightly. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Strength Block Training App | Flexibull |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 73 MB | 76 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Strength Block Limited](https://appshunter.io/developer/1709698225) | [Flexibull Fitness](https://appshunter.io/developer/1816282485) |

## What reviewers say

### Strength Block Training App

[App page](https://appshunter.io/ios/app/strength-block-training-app/id6468273580)

**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 Strength Block Training App free?

Strength Block Training App is free to download, with no in-app purchases.

### Is Flexibull free?

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

### Do Strength Block Training App or Flexibull have ads?

Neither Strength Block Training App nor Flexibull shows ads.

### Which is updated more often, Strength Block Training App or Flexibull?

Strength Block Training App ships an update every 2 weeks, and Flexibull fortnightly. Most recently, Strength Block Training App was updated on October 4, 2026 and Flexibull on October 13, 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.*