# Jellyfish Heaven vs Stack Pals

The clearest difference is rating: Stack Pals at 5.0 against Jellyfish Heaven's 4.2. Stack Pals also leads on update cadence (every 9 days vs every 3 months) and review sentiment (100% vs 71%). Jellyfish Heaven's advantage is ratings volume (422 vs 4) and iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Jellyfish Heaven sells 8 one-off in-app purchases and Stack Pals sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Stack Pals holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Jellyfish Heaven has 422 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 71% of Jellyfish Heaven's written reviews are positive against 100% of Stack Pals's.

Jellyfish Heaven ships an update every 3 months, Stack Pals every 9 days. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Jellyfish Heaven | Stack Pals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (422 ratings)](https://appshunter.io/ios/app/jellyfish-heaven-relax-time/id548498631/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/stack-pals/id6748839302/reviews)** |
| Number of ratings | **422** | 4 |
| Positive reviews | 71.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 66 MB | 227 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPod, Apple TV, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Daichi Sasaki](https://appshunter.io/developer/348827338) | [PillowBit Games](https://appshunter.io/developer/1827581143) |

## What reviewers say

### Jellyfish Heaven

[App page](https://appshunter.io/ios/app/jellyfish-heaven-relax-time/id548498631)

Experience the serene beauty of realistic jellyfish on your device. Choose from multiple species, control their numbers, and interact with them. Enjoy calming visuals and sounds to relax anytime, anywhere.

**Highlights:** Realistic jellyfish simulation, 6 species to choose from, Adjustable jellyfish count, Interactive jellyfish (color change), Apple Watch compatibility, Set as wallpaper, Share images

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ad | $0.99 | one-time |
| Diamond Jellyfish and Ad removal | $0.99 | one-time |
| Octopus Jellyfish and Ad removal | $0.99 | one-time |
| Red Jellyfish | $0.99 | one-time |
| Flower Hat Jelly | $0.99 | one-time |
| Upgrade to max 16 jellyfishes + landscape mode | $3.99 | one-time |
| PRO Upgrade | $4.99 | one-time |
| A lunch for developer | $4.99 | one-time |

**What reviewers like**

- 🌊 Realistic jellyfish movement
- 🎶 Soothing background music
- 👍 Calming and relaxing experience
- 🎨 Ability to change jellyfish colors

**What reviewers complain about**

- 💰 Paid features required to unlock more content
- 🔍 Limited free jellyfish options
- 🛑 Ads disrupt the relaxing experience
- 🤯 Compatibility issues on some devices

**Reported bugs**

- App crashes or freezes on certain devices
- Purchased features not working as expected
- Jellyfish disappearing from the screen

**Requested features**

- Add a sleep timer feature
- Allow customization of background music
- Expand the variety of free jellyfish options
- Improve full-screen support on tablets


### Stack Pals

[App page](https://appshunter.io/ios/app/stack-pals/id6748839302)

A charming tower-building game where players tap to drop blocks, aiming for perfect alignment to stack higher and earn rewards. Collect adorable pals, unlock new themes, and compete on global leaderboards for the ultimate stacking challenge.

**Highlights:** Tap to drop blocks, Perfect alignment bonuses, Collect and play with cute pals, Global leaderboards, Unlock themes and environments, Enter Fever Mode for rewards

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tiny Gold Pack | $0.99 | one-time |
| Small Gold Pack | $4.99 | one-time |
| Ad Skip | $5.99 | one-time |
| Starter Pack | $6.99 | one-time |
| Medium Gold Pack | $9.99 | one-time |
| Large Gold Pack | $19.99 | one-time |
| Huge Gold Pack | $49.99 | one-time |


## Frequently asked questions

### Is Jellyfish Heaven free?

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

### Is Stack Pals free?

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

### Which has better reviews, Jellyfish Heaven or Stack Pals?

Stack Pals is rated higher. Jellyfish Heaven averages 4.2 out of 5 from 422 ratings, while Stack Pals averages 5.0 from 4 ratings.

### Do Jellyfish Heaven or Stack Pals have ads?

Both Jellyfish Heaven and Stack Pals show ads.

### Which is updated more often, Jellyfish Heaven or Stack Pals?

Jellyfish Heaven ships an update every 3 months, and Stack Pals every 9 days. Most recently, Jellyfish Heaven was updated on October 18, 2026 and Stack Pals on October 10, 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.*