# Mellow Kingdom vs Nova Stack

Mellow Kingdom and Nova Stack are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Mellow Kingdom sells 8 one-off in-app purchases and Nova Stack sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mellow Kingdom ships an update every 5 days, Nova Stack weekly. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Mellow Kingdom | Nova Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Weekly |
| Size | 466 MB | 140 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bugra Suslu](https://appshunter.io/developer/1231760241) | [sung won kim](https://appshunter.io/developer/1849560098) |

## What reviewers say

### Mellow Kingdom

[App page](https://appshunter.io/ios/app/mellow-kingdom/id6758722401)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold Pack 1 | $0.99 | one-time |
| Gold Pack 2 | $2.99 | one-time |
| no ads | $4.99 | one-time |
| Gold Pack 3 | $5.49 | one-time |
| Royal Pass | $7.99 | one-time |
| Gold Pack 4 | $12.99 | one-time |
| Gold Pack 5 | $24.99 | one-time |
| Gold Pack 6 | $49.99 | one-time |


### Nova Stack

[App page](https://appshunter.io/ios/app/nova-stack/id6762187963)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Mellow Kingdom free?

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

### Is Nova Stack free?

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

### Do Mellow Kingdom or Nova Stack have ads?

Both Mellow Kingdom and Nova Stack show ads.

### Which is updated more often, Mellow Kingdom or Nova Stack?

Mellow Kingdom ships an update every 5 days, and Nova Stack weekly. Most recently, Mellow Kingdom was updated on October 6, 2026 and Nova Stack on October 7, 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.*