# FIRE vs CompoundFX

The clearest difference is update cadence: FIRE at every 10 days against CompoundFX's every 2 months. FIRE also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. FIRE sells 2 in-app purchases, starting at $4.99 per month and CompoundFX sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

FIRE ships an update every 10 days, CompoundFX every 2 months. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | FIRE | CompoundFX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Size | 45 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Max McGregor](https://appshunter.io/developer/1862820410) | [Origin Software, Inc.](https://appshunter.io/developer/1895882631) |

## What reviewers say

### FIRE

[App page](https://appshunter.io/ios/app/fire-retirement-projection/id6761552465)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FIRE Projection Premium | $4.99 | per month |
| Premium Yearly | $12.99 | per year |


### CompoundFX

[App page](https://appshunter.io/ios/app/compoundfx-compound-interest/id6764695879)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CompoundFX Pro | $4.99 | one-time |


## Frequently asked questions

### Is FIRE free?

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

### Is CompoundFX free?

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

### Do FIRE or CompoundFX have ads?

Neither FIRE nor CompoundFX shows ads.

### Which is updated more often, FIRE or CompoundFX?

FIRE ships an update every 10 days, and CompoundFX every 2 months. Most recently, FIRE was updated on October 21, 2026 and CompoundFX on October 25, 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.*