# Flexi vs bld

The clearest difference is device support: Flexi at 3 against bld's 1. Flexi also leads on iOS requirement (15.1 vs 18.2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Flexi sells 3 in-app purchases, starting at $7.99 per month and bld sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Flexi | bld |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 46 MB | 53 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Simen Mathiesen](https://appshunter.io/developer/1875543632) | [Ayman Hobani](https://appshunter.io/developer/1895303698) |

## What reviewers say

### Flexi

[App page](https://appshunter.io/ios/app/flexi-workout-tracker/id6758888461)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flexi Pro Monthly | $7.99 | per month |
| Flexi Pro Annual | $49.99 | per year |
| Flexi Pro Lifetime | $59.99 | one-time |


### bld

[App page](https://appshunter.io/ios/app/bld-hypertrophy-periodization/id6763415239)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Self coaching | $7.99 | per month |
| Full Access | $34.99 | per month |
| Consultation with Coach | $19.99 | one-time |
| Plan Regeneration Token | $22.99 | one-time |


## Frequently asked questions

### Is Flexi free?

Flexi is free to download, with in-app purchases available.

### Is bld free?

bld is free to download, with in-app purchases available.

### Do Flexi or bld have ads?

Neither Flexi nor bld shows ads.

### Which is updated more often, Flexi or bld?

Flexi ships an update weekly, and bld weekly. Most recently, Flexi was updated on October 8, 2026 and bld on October 16, 2026.

---

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