# Flexibull vs BUILTFROMZERO TRAINING APP

Flexibull and BUILTFROMZERO TRAINING APP 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 October 13, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Flexibull | BUILTFROMZERO TRAINING APP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 76 MB | 75 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Flexibull Fitness](https://appshunter.io/developer/1816282485) | [Built From Zero](https://appshunter.io/developer/1852255975) |

## What reviewers say

### Flexibull

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

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

**In-app purchases:** none


### BUILTFROMZERO TRAINING APP

[App page](https://appshunter.io/ios/app/builtfromzero-training-app/id6755150902)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flexibull free?

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

### Is BUILTFROMZERO TRAINING APP free?

BUILTFROMZERO TRAINING APP is free to download, with no in-app purchases.

### Do Flexibull or BUILTFROMZERO TRAINING APP have ads?

Neither Flexibull nor BUILTFROMZERO TRAINING APP shows ads.

### Which is updated more often, Flexibull or BUILTFROMZERO TRAINING APP?

Flexibull ships an update fortnightly, and BUILTFROMZERO TRAINING APP fortnightly. Most recently, Flexibull was updated on October 13, 2026 and BUILTFROMZERO TRAINING APP on September 28, 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.*