# Jumpjam vs U

The clearest difference is update cadence: U at weekly against Jumpjam's every 23 months. Jumpjam's advantage is iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Jumpjam ships an update every 23 months, U weekly. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Jumpjam | U |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Weekly** |
| Monetization | Free | — |
| Size | 49 MB | 77 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [The Jump Company (Bridgend) Ltd](https://appshunter.io/developer/1569013487) | [U-Test Diagnostics LTD](https://appshunter.io/developer/1856272129) |

## What reviewers say

### Jumpjam

[App page](https://appshunter.io/ios/app/jumpjam/id1218847680)

Discover and book sessions at Wales' largest trampoline park. Explore a variety of attractions like dodgeball, parkour, and climbing walls. The app also provides information on cafes, party rooms, and upcoming events.

**Highlights:** Book park sessions, View park facilities, Information on cafes and party rooms, Details on various attractions, Session and class information

**Features:** macOS Compatibility

**In-app purchases:** none


### U

[App page](https://appshunter.io/ios/app/u-test/id6755781754)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Jumpjam free?

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

### Is U free?

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

### Do Jumpjam or U have ads?

Neither Jumpjam nor U shows ads.

### Which is updated more often, Jumpjam or U?

Jumpjam ships an update every 23 months, and U weekly. Most recently, Jumpjam was updated on September 23, 2026 and U on September 21, 2026.

---

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