# First Derivative vs Brevia

The clearest difference is in-app purchases: Brevia at none against First Derivative's 9. Brevia also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. First Derivative sells 9 in-app purchases, starting at $1.99 per month. Brevia asks for nothing beyond the download.

First Derivative ships an update every 2 weeks, Brevia every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | First Derivative | Brevia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/first-derivative/id6758227291/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 72 MB | 23 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Edvard Bjarnason](https://appshunter.io/developer/1540586411) | [VALERIO MONTEFORTE](https://appshunter.io/developer/6775802412) |

## What reviewers say

### First Derivative

[App page](https://appshunter.io/ios/app/first-derivative/id6758227291)

This app analyzes global events and situations across geopolitics, markets, and risk. It models over 2,000 events daily from 100,000 articles to provide structured, forward-looking analysis with probable outcomes. Designed for decision-makers seeking context over noise.

**Highlights:** Daily event modeling from 100,000 articles, Structured analysis of situations, Forward-looking scenarios with probabilities, System dynamics modeling, Global risk radar, 14-day free trial

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free | $1.99 | per month |
| Analytics | $4.99 | per month |
| Ad-free + Analytics | $4.99 | per month |
| Ad-free | $19.99 | per year |
| Analytics | $49.99 | per year |
| Ad-free + Analytics | $49.99 | per year |
| Credits 20 | $9.99 | one-time |
| Credits 50 | $19.99 | one-time |
| Credits 100 | $34.99 | one-time |


### Brevia

[App page](https://appshunter.io/ios/app/brevia/id6775802410)

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

**In-app purchases:** none


## Frequently asked questions

### Is First Derivative free?

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

### Is Brevia free?

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

### Do First Derivative or Brevia have ads?

Neither First Derivative nor Brevia shows ads.

### Which is updated more often, First Derivative or Brevia?

First Derivative ships an update every 2 weeks, and Brevia every 4 days. Most recently, First Derivative was updated on October 28, 2026 and Brevia on October 31, 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.*