# Weakness vs FF Source

The clearest difference is in-app purchases: Weakness at none against FF Source's 1. Weakness also leads on iOS requirement (12.0 vs 15.0). FF Source's advantage is ads (none vs shown) and update cadence (every 5 months vs every 10 months). On price and device support there is nothing between them.

Both are free to download. FF Source sells 1 one-off in-app purchase. Weakness asks for nothing beyond the download.

Weakness ships an update every 10 months, FF Source every 5 months. The most recent releases landed on September 13, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Weakness | FF Source |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/weakness-ffxi-proc-triggers/id645244423/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 5 months** |
| Monetization | Ad-supported | — |
| Size | 26 MB | 44 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [RARE BEAR SOFTWARE LTD](https://appshunter.io/developer/645244426) | [Asylzhan Salimkhan](https://appshunter.io/developer/1088922611) |

## What reviewers say

### Weakness

[App page](https://appshunter.io/ios/app/weakness-ffxi-proc-triggers/id645244423)

This app provides a comprehensive guide to Final Fantasy XI's weakness triggers for various in-game content. Quickly find the right weaponskills, magic, and abilities to achieve red, yellow, and blue PROCs.

**Highlights:** Weakness trigger guide, Abyssea, Dynamis, Voidwatch monsters, Weaponskill reference, Magic spell reference, Ninjutsu reference, Job ability reference

**In-app purchases:** none


### FF Source

[App page](https://appshunter.io/ios/app/ff-source/id6503000581)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Compare Weapons | $7.99 | one-time |


## Frequently asked questions

### Is Weakness free?

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

### Is FF Source free?

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

### Do Weakness or FF Source have ads?

Weakness shows ads; FF Source does not.

### Which is updated more often, Weakness or FF Source?

Weakness ships an update every 10 months, and FF Source every 5 months. Most recently, Weakness was updated on September 13, 2026 and FF Source on September 21, 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.*