# PROTOCOL vs PATIENT ZERO

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

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

PROTOCOL ships an update every 3 days, PATIENT ZERO every 2 days. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | PROTOCOL | PATIENT ZERO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 259 MB | 54 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [SungGwon Han](https://appshunter.io/developer/1117887913) | [sehyun ban](https://appshunter.io/developer/6808124563) |

## 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 |


### PATIENT ZERO

[App page](https://appshunter.io/ios/app/patient-zero/id6822966489)

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

**In-app purchases:** none


## Frequently asked questions

### Is PROTOCOL free?

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

### Is PATIENT ZERO free?

PATIENT ZERO is free to download, with no in-app purchases.

### Do PROTOCOL or PATIENT ZERO have ads?

PROTOCOL shows ads; PATIENT ZERO does not.

### Which is updated more often, PROTOCOL or PATIENT ZERO?

PROTOCOL ships an update every 3 days, and PATIENT ZERO every 2 days. Most recently, PROTOCOL was updated on November 12, 2026 and PATIENT ZERO on November 13, 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.*