# SIGMA vs FrescobaldiAgenti

The clearest difference is update cadence: FrescobaldiAgenti at every 3 months against SIGMA's every 10 months. SIGMA's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SIGMA ships an update every 10 months, FrescobaldiAgenti every 3 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SIGMA | FrescobaldiAgenti |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Size | 22 MB | 165 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ID&A S.r.l.](https://appshunter.io/developer/1446283055) | [Adiacent Spa Società Benefit](https://appshunter.io/developer/1792208343) |

## What reviewers say

### SIGMA

[App page](https://appshunter.io/ios/app/sigma-aamps/id1446283056)

**Features:** macOS Compatibility

**In-app purchases:** none


### FrescobaldiAgenti

[App page](https://appshunter.io/ios/app/frescobaldiagenti/id6468922826)

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

**In-app purchases:** none


## Frequently asked questions

### Is SIGMA free?

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

### Is FrescobaldiAgenti free?

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

### Do SIGMA or FrescobaldiAgenti have ads?

Neither SIGMA nor FrescobaldiAgenti shows ads.

### Which is updated more often, SIGMA or FrescobaldiAgenti?

SIGMA ships an update every 10 months, and FrescobaldiAgenti every 3 months. Most recently, SIGMA was updated on October 26, 2026 and FrescobaldiAgenti 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.*