# Trigonométrie vs BDnF

The clearest difference is iOS requirement: Trigonométrie at 10.0 against BDnF's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Trigonométrie ships an update every 4 months, BDnF every 6 months. The most recent releases landed on October 29, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Trigonométrie | BDnF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (5 ratings)](https://appshunter.io/ios/app/bdnf-the-comics-factory/id1495820149/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 20.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | — | Free |
| Size | 24 MB | 235 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christophe Auclair](https://appshunter.io/developer/1333526155) | [Bibliotheque nationale de France](https://appshunter.io/developer/501800444) |

## What reviewers say

### Trigonométrie

[App page](https://appshunter.io/ios/app/trigonometrie/id1442521895)

**Features:** macOS Compatibility

**In-app purchases:** none


### BDnF

[App page](https://appshunter.io/ios/app/bdnf-the-comics-factory/id1495820149)

This application allows users to create comics, graphic novels, and storyboards by combining images and text. It offers tools for composing innovative formats, making it suitable for both casual fun and aspiring comic creators.

**Highlights:** Create comics, Create graphic novels, Create storyboards, Combine images and text, Compose innovative formats

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trigonométrie free?

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

### Is BDnF free?

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

### Do Trigonométrie or BDnF have ads?

Neither Trigonométrie nor BDnF shows ads.

### Which is updated more often, Trigonométrie or BDnF?

Trigonométrie ships an update every 4 months, and BDnF every 6 months. Most recently, Trigonométrie was updated on October 29, 2026 and BDnF on November 3, 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.*