# Underisland vs Deepfall

The clearest difference is ads: Deepfall at none against Underisland's shown. Underisland's advantage is update cadence (every 4 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Underisland sells 10 in-app purchases, starting at $4.99 per 7 days and Deepfall sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Underisland ships an update every 4 days, Deepfall every 2 weeks. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Underisland | Deepfall |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.1 (8 ratings)](https://appshunter.io/ios/app/deepfall-idle/id6753289940/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 217 MB | 265 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Ruslan Abdullakh](https://appshunter.io/developer/1821467214) | [YAMY STUDIO YAZILIM VE OYUN GELISTIRME ANONIM SIRKETI](https://appshunter.io/developer/1533940116) |

## What reviewers say

### Underisland

[App page](https://appshunter.io/ios/app/underisland-mining-adventure/id6747443897)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Legends' Subscription | $4.99 | per 7 days |
| Planks | $0.99 | one-time |
| Planks | $3.99 | one-time |
| Starter Pack | $5.99 | one-time |
| Pile of Coins | $7.99 | one-time |
| Planks | $7.99 | one-time |
| Ingots | $7.99 | one-time |
| No Ads | $9.99 | one-time |
| Plenty of Magic Threads | $19.99 | one-time |
| Barrel of Gems | $19.99 | one-time |


### Deepfall

[App page](https://appshunter.io/ios/app/deepfall-idle/id6753289940)

Descend into an endless pit, breaking cubes for resources and fighting enemies at night. Build a stairway to escape the depths, upgrading your gear and abilities as you progress. Enjoy a blend of active and idle gameplay with a dynamic day-night cycle.

**Highlights:** Idle and arcade hybrid gameplay, Dynamic day-night system, Real-time combat with idle progression, Upgradeable weapons and abilities, Resource gathering and crafting, Exploration and discovery

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $3.99 | one-time |
| Gem Pack 1 | $4.99 | one-time |
| Gem Pack 2 | $8.99 | one-time |
| Premium Pack | $9.99 | one-time |
| Special Machine 1 | $14.99 | one-time |
| Special Gun 1 | $14.99 | one-time |
| Gem Pack 3 | $19.99 | one-time |
| Special Gun 2 | $19.99 | one-time |
| Special Machine 2 | $19.99 | one-time |


## Frequently asked questions

### Is Underisland free?

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

### Is Deepfall free?

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

### Do Underisland or Deepfall have ads?

Underisland shows ads; Deepfall does not.

### Which is updated more often, Underisland or Deepfall?

Underisland ships an update every 4 days, and Deepfall every 2 weeks. Most recently, Underisland was updated on October 9, 2026 and Deepfall on October 24, 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.*