# SIGMA GEOFOR vs CERULEO

The clearest difference is update cadence: CERULEO at weekly against SIGMA GEOFOR's every 21 months. 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 GEOFOR ships an update every 21 months, CERULEO weekly. The most recent releases landed on September 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SIGMA GEOFOR | CERULEO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Weekly** |
| Size | 22 MB | 133 MB |
| Requires iOS | **11.0** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ID&A S.r.l.](https://appshunter.io/developer/1446283055) | [Antonio Maria Russo](https://appshunter.io/developer/1625169466) |

## What reviewers say

### SIGMA GEOFOR

[App page](https://appshunter.io/ios/app/sigma-geofor/id1673506472)

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

**In-app purchases:** none


### CERULEO

[App page](https://appshunter.io/ios/app/ceruleo/id6747738754)

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

**In-app purchases:** none


## Frequently asked questions

### Is SIGMA GEOFOR free?

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

### Is CERULEO free?

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

### Do SIGMA GEOFOR or CERULEO have ads?

Neither SIGMA GEOFOR nor CERULEO shows ads.

### Which is updated more often, SIGMA GEOFOR or CERULEO?

SIGMA GEOFOR ships an update every 21 months, and CERULEO weekly. Most recently, SIGMA GEOFOR was updated on September 21, 2026 and CERULEO on October 24, 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.*