# Perform Under the Sea vs ADJN

The clearest difference is update cadence: ADJN at every 2 weeks against Perform Under the Sea's every 39 months. Perform Under the Sea's advantage is iOS requirement (12.1 vs 14.0). 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.

Perform Under the Sea ships an update every 39 months, ADJN every 2 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Perform Under the Sea | ADJN |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 294 MB | 34 MB |
| Requires iOS | **12.1** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Perform](https://appshunter.io/developer/666961872) | [TvStartup Inc.](https://appshunter.io/developer/991223339) |

## What reviewers say

### Perform Under the Sea

[App page](https://appshunter.io/ios/app/perform-under-the-sea/id849138239)

Explore a vibrant underwater world filled with creative activities for children. Engage in educational games focusing on math and coordination, solve puzzles, and enjoy imaginative videos with songs and dances.

**Highlights:** Creative expression activities, Math skill games, Coordination challenges, Jigsaw puzzles, Educational videos, Songs and dances

**Features:** macOS Compatibility

**In-app purchases:** none


### ADJN

[App page](https://appshunter.io/ios/app/adjn/id6752879696)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Perform Under the Sea free?

Perform Under the Sea is free to download, with no in-app purchases.

### Is ADJN free?

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

### Do Perform Under the Sea or ADJN have ads?

Neither Perform Under the Sea nor ADJN shows ads.

### Which is updated more often, Perform Under the Sea or ADJN?

Perform Under the Sea ships an update every 39 months, and ADJN every 2 weeks. Most recently, Perform Under the Sea was updated on November 1, 2026 and ADJN on October 30, 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.*