# PROTOCOL vs SuperNova Defense

The clearest difference is in-app purchases: SuperNova Defense at none against PROTOCOL's 10. SuperNova Defense also leads on iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. PROTOCOL sells 10 one-off in-app purchases. SuperNova Defense asks for nothing beyond the download.

## The numbers

| Metric | PROTOCOL | SuperNova Defense |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | — |
| Size | 259 MB | 89 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [SungGwon Han](https://appshunter.io/developer/1117887913) | [家傲 郭](https://appshunter.io/developer/1801216745) |

## What reviewers say

### PROTOCOL

[App page](https://appshunter.io/ios/app/protocol-zero-rift/id6740158945)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Beginner Package 1 | $0.99 | one-time |
| Sale Package 3 | $1.99 | one-time |
| Sale Package 1 | $2.99 | one-time |
| Sale Package 2 | $4.99 | one-time |
| Beginner Package 2 | $4.99 | one-time |
| Remove Ad | $5.99 | one-time |
| Daily Special Mission Ticket | $7.99 | one-time |
| Mission Energy Booster (30 Days) | $9.99 | one-time |
| Stage Pass | $9.99 | one-time |
| Beginner Package 3 | $14.99 | one-time |


### SuperNova Defense

[App page](https://appshunter.io/ios/app/supernova-defense/id6749136469)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PROTOCOL free?

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

### Is SuperNova Defense free?

SuperNova Defense is free to download, with no in-app purchases.

### Do PROTOCOL or SuperNova Defense have ads?

Both PROTOCOL and SuperNova Defense show ads.

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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.*