# Slice Reactor vs Final Fortress

The clearest difference is update cadence: Slice Reactor at every 4 days against Final Fortress's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Slice Reactor sells 1 one-off in-app purchase and Final Fortress sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Slice Reactor ships an update every 4 days, Final Fortress weekly. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Slice Reactor | Final Fortress |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Size | 9 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [Ahmad AlBarqawi](https://appshunter.io/developer/1500625654) | [Dmitrii Dark](https://appshunter.io/developer/1870629778) |

## What reviewers say

### Slice Reactor

[App page](https://appshunter.io/ios/app/slice-reactor-space-reflex/id6782610372)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporter Pack | $2.99 | one-time |


### Final Fortress

[App page](https://appshunter.io/ios/app/final-fortress/id6802020790)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Amber Phosphor | $0.99 | one-time |
| Emerald Phosphor | $0.99 | one-time |
| The Long Dark | $0.99 | one-time |
| Memory Chip | $2.99 | one-time |


## Frequently asked questions

### Is Slice Reactor free?

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

### Is Final Fortress free?

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

### Do Slice Reactor or Final Fortress have ads?

Neither Slice Reactor nor Final Fortress shows ads.

### Which is updated more often, Slice Reactor or Final Fortress?

Slice Reactor ships an update every 4 days, and Final Fortress weekly. Most recently, Slice Reactor was updated on October 21, 2026 and Final Fortress on October 16, 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.*