# Infinity vs Protocol 4

The clearest difference is ads: Infinity at none against Protocol 4's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Infinity sells 1 one-off in-app purchase and Protocol 4 sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Infinity ships an update every 4 months, Protocol 4 every 3 months. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Infinity | Protocol 4 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 8 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anand Raj R](https://appshunter.io/developer/514675684) | [HAKAN OZGER](https://appshunter.io/developer/1855495033) |

## What reviewers say

### Infinity

[App page](https://appshunter.io/ios/app/infinity-basic-math-questions/id6748877343)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Host a Party (Lifetime) | $1.99 | one-time |


### Protocol 4

[App page](https://appshunter.io/ios/app/protocol-4-code-breaker-pvp/id6755742805)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pocket Change | $0.99 | one-time |
| Starter Kit | $1.99 | one-time |
| Agent License | $2.99 | one-time |
| Hacker's Stash | $4.99 | one-time |
| Pro Kit | $4.99 | one-time |
| Trust Fund | $9.99 | one-time |
| Master Kit | $9.99 | one-time |


## Frequently asked questions

### Is Infinity free?

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

### Is Protocol 4 free?

Protocol 4 is free to download, with in-app purchases available.

### Do Infinity or Protocol 4 have ads?

Protocol 4 shows ads; Infinity does not.

### Which is updated more often, Infinity or Protocol 4?

Infinity ships an update every 4 months, and Protocol 4 every 3 months. Most recently, Infinity was updated on October 12, 2026 and Protocol 4 on October 8, 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.*