# Predicate Logic Foundations vs Trivium

The clearest difference is in-app purchases: Predicate Logic Foundations at none against Trivium's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Trivium sells 2 in-app purchases, starting at $3.99 per month. Predicate Logic Foundations asks for nothing beyond the download.

## The numbers

| Metric | Predicate Logic Foundations | Trivium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trivium-communication-skills/id6785628457/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Freemium |
| Size | 38 MB | 84 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AFTW LLC](https://appshunter.io/developer/1886356149) | [Aurea Via LTD](https://appshunter.io/developer/1566227056) |

## What reviewers say

### Predicate Logic Foundations

[App page](https://appshunter.io/ios/app/predicate-logic-foundations/id6773451459)

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

**In-app purchases:** none


### Trivium

[App page](https://appshunter.io/ios/app/trivium-communication-skills/id6785628457)

This app teaches French and English through the classical arts of grammar, logic, and rhetoric. It focuses on understanding and speaking, offering a 52-week course with daily lessons and AI-powered feedback. Users can also build a personal lexicon and invite friends for extended access.

**Highlights:** Classical language learning (Grammar, Logic, Rhetoric), AI-powered speaking and writing practice, Spaced repetition for retention, Personalized lexicon building, Friend invitation for extended access, 52-week structured course

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trivium Scholar — Monthly | $3.99 | per month |
| Trivium Scholar — Annual | $29.99 | per year |


## Frequently asked questions

### Is Predicate Logic Foundations free?

Predicate Logic Foundations is free to download, with no in-app purchases.

### Is Trivium free?

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

### Do Predicate Logic Foundations or Trivium have ads?

Neither Predicate Logic Foundations nor Trivium shows ads.

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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.*