# Substrate Entity vs Eternity Nightfall

The clearest difference is in-app purchases: Substrate Entity at none against Eternity Nightfall's 4. Substrate Entity also leads on update cadence (every 3 days vs weekly). Eternity Nightfall's advantage is iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Eternity Nightfall sells 4 one-off in-app purchases. Substrate Entity asks for nothing beyond the download.

Substrate Entity ships an update every 3 days, Eternity Nightfall weekly. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Substrate Entity | Eternity Nightfall |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 136 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [DRO1D LABS LIMITED](https://appshunter.io/developer/1803083780) | [Mihail Prisacaru](https://appshunter.io/developer/6775416472) |

## What reviewers say

### Substrate Entity

[App page](https://appshunter.io/ios/app/substrate-entity/id6757655237)

**Features:** macOS Compatibility

**In-app purchases:** none


### Eternity Nightfall

[App page](https://appshunter.io/ios/app/eternity-nightfall/id6808540967)

Navigate a vast, first-person gothic maze filled with undead enemies. Find the chest, defeat its guardians, and collect loot. Customize your pistol with unlockable stickers.

**Highlights:** Vast 64x64 cell maze (100,000 m2), First-person pistol combat, Weapon sticker customization, Undead enemy encounters, Chest guarding sentinels, In-app coin purchases

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Coins | $0.99 | one-time |
| 500 Coins | $3.99 | one-time |
| Drakeborn pistol skin | $3.99 | one-time |
| 1000 Coins | $6.99 | one-time |


## Frequently asked questions

### Is Substrate Entity free?

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

### Is Eternity Nightfall free?

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

### Do Substrate Entity or Eternity Nightfall have ads?

Neither Substrate Entity nor Eternity Nightfall shows ads.

### Which is updated more often, Substrate Entity or Eternity Nightfall?

Substrate Entity ships an update every 3 days, and Eternity Nightfall weekly. Most recently, Substrate Entity was updated on October 3, 2026 and Eternity Nightfall 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.*