# SimpleFFT vs o46scope

The clearest difference is ads: o46scope at none against SimpleFFT's shown. o46scope also leads on update cadence (every 6 weeks vs every 18 months) and iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. SimpleFFT sells 1 one-off in-app purchase and o46scope sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

SimpleFFT ships an update every 18 months, o46scope every 6 weeks. The most recent releases landed on August 28, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SimpleFFT | o46scope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Every 6 weeks** |
| Size | 5 MB | 53 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HIROFUMI MARUO](https://appshunter.io/developer/667820705) | [Shinsuke Tsutsui](https://appshunter.io/developer/1707110915) |

## What reviewers say

### SimpleFFT

[App page](https://appshunter.io/ios/app/simplefft/id1239257017)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Functions | $0.49 | one-time |


### o46scope

[App page](https://appshunter.io/ios/app/o46scope/id6754371407)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $19.99 | per year |


## Frequently asked questions

### Is SimpleFFT free?

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

### Is o46scope free?

o46scope is free to download, with in-app purchases available.

### Do SimpleFFT or o46scope have ads?

SimpleFFT shows ads; o46scope does not.

### Which is updated more often, SimpleFFT or o46scope?

SimpleFFT ships an update every 18 months, and o46scope every 6 weeks. Most recently, SimpleFFT was updated on August 28, 2026 and o46scope 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.*