# Vertical Jump Trainer vs Calfmaxx

Vertical Jump Trainer and Calfmaxx 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. Vertical Jump Trainer sells 2 in-app purchases, starting at $19.99 per month and Calfmaxx sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Vertical Jump Trainer | Calfmaxx |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Size | 55 MB | 90 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Aneta M Nowakowske e/v de Groot](https://appshunter.io/developer/6772970263) | [Valet Hero LLC](https://appshunter.io/developer/1780020867) |

## What reviewers say

### Vertical Jump Trainer

[App page](https://appshunter.io/ios/app/vertical-jump-trainer-jumpkit/id6772970261)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $19.99 | per month |
| Annual | $59.99 | per year |


### Calfmaxx

[App page](https://appshunter.io/ios/app/calfmaxx/id6796440695)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $3.99 | per 7 days |
| Yearly Plan | $29.99 | per year |


## Frequently asked questions

### Is Vertical Jump Trainer free?

Vertical Jump Trainer is free to download, with in-app purchases available.

### Is Calfmaxx free?

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

### Do Vertical Jump Trainer or Calfmaxx have ads?

Neither Vertical Jump Trainer nor Calfmaxx 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.*