# Fretionary Bass vs Quick Theory

The clearest difference is device support: Quick Theory at 2 against Fretionary Bass's —. Fretionary Bass's advantage is iOS requirement (15.1 vs 18.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Fretionary Bass sells 2 in-app purchases, starting at $7.99 per month and Quick Theory sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Fretionary Bass ships an update every 2 weeks, Quick Theory every 3 weeks. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Fretionary Bass | Quick Theory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 53 MB | 87 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Brandon Sumner](https://appshunter.io/developer/1889019674) | [HANOCH YOSEF LIB](https://appshunter.io/developer/6788600007) |

## What reviewers say

### Fretionary Bass

[App page](https://appshunter.io/ios/app/fretionary-bass/id6780226014)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fretionary Bass Pro Monthly | $7.99 | per month |
| Fretionary Bass Pro Lifetime | $44.99 | one-time |


### Quick Theory

[App page](https://appshunter.io/ios/app/quick-theory/id6790213145)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $29.99 | per year |
| Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Fretionary Bass free?

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

### Is Quick Theory free?

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

### Which is updated more often, Fretionary Bass or Quick Theory?

Fretionary Bass ships an update every 2 weeks, and Quick Theory every 3 weeks. Most recently, Fretionary Bass was updated on October 18, 2026 and Quick Theory on October 19, 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.*