# P.TOS vs Fate Engine

The clearest difference is in-app purchases: P.TOS at none against Fate Engine's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Fate Engine sells 3 in-app purchases, starting at $1.99 per month. P.TOS asks for nothing beyond the download.

P.TOS ships an update every 2 weeks, Fate Engine every 8 days. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | P.TOS | Fate Engine |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Size | 94 MB | 23 MB |
| Requires iOS | **15.5** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Phoenixdarts Co., Ltd.](https://appshunter.io/developer/435063659) | [艳青 蔡](https://appshunter.io/developer/1854271802) |

## What reviewers say

### P.TOS

[App page](https://appshunter.io/ios/app/ptos/id6505145997)

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

**In-app purchases:** none


### Fate Engine

[App page](https://appshunter.io/ios/app/fate-engine-random-picker/id6761009796)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Yearly | $12.99 | per year |
| Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is P.TOS free?

P.TOS is free to download, with no in-app purchases.

### Is Fate Engine free?

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

### Do P.TOS or Fate Engine have ads?

Neither P.TOS nor Fate Engine shows ads.

### Which is updated more often, P.TOS or Fate Engine?

P.TOS ships an update every 2 weeks, and Fate Engine every 8 days. Most recently, P.TOS was updated on September 20, 2026 and Fate Engine on September 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.*