# Paper Strike vs Aetherline Protocol

The clearest difference is in-app purchases: Paper Strike at none against Aetherline Protocol's 4. Paper Strike also leads on update cadence (every 3 days vs every 9 days) and iOS requirement (15.6 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Aetherline Protocol sells 4 one-off in-app purchases. Paper Strike asks for nothing beyond the download.

Paper Strike ships an update every 3 days, Aetherline Protocol every 9 days. The most recent releases landed on September 9, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Paper Strike | Aetherline Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 9 days |
| Monetization | Ad-supported | — |
| Size | 68 MB | 31 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Halil Dikisli](https://appshunter.io/developer/1721582705) | [Le Nguyen](https://appshunter.io/developer/1871997463) |

## What reviewers say

### Paper Strike

[App page](https://appshunter.io/ios/app/paper-strike/id6670428787)

Engage in a 2D survival shooter set on a paper battlefield. Move, shoot automatically, and defeat endless waves of enemies. Enjoy a unique hand-drawn visual style and challenging gameplay.

**Highlights:** Simple one-touch controls, Endless enemy waves, Score tracking, Unique hand-drawn visuals, Challenging progression

**Features:** macOS Compatibility

**In-app purchases:** none


### Aetherline Protocol

[App page](https://appshunter.io/ios/app/aetherline-protocol/id6786246670)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aether Cache | $0.99 | one-time |
| Aether Vault | $4.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Aether Reactor | $9.99 | one-time |


## Frequently asked questions

### Is Paper Strike free?

Paper Strike is free to download, with no in-app purchases.

### Is Aetherline Protocol free?

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

### Do Paper Strike or Aetherline Protocol have ads?

Both Paper Strike and Aetherline Protocol show ads.

### Which is updated more often, Paper Strike or Aetherline Protocol?

Paper Strike ships an update every 3 days, and Aetherline Protocol every 9 days. Most recently, Paper Strike was updated on September 9, 2026 and Aetherline Protocol on September 6, 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.*