# Rompi vs Pre Calculus

The clearest difference is in-app purchases: Rompi at none against Pre Calculus's 8. Rompi also leads on iOS requirement (8.0 vs 15.6). Pre Calculus's advantage is update cadence (every 5 weeks vs every 20 months). On price, ads and device support there is nothing between them.

Both are free to download. Pre Calculus sells 8 in-app purchases, starting at $1.99 per 7 days. Rompi asks for nothing beyond the download.

Rompi ships an update every 20 months, Pre Calculus every 5 weeks. Both last shipped on October 2, 2026.

## The numbers

| Metric | Rompi | Pre Calculus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/pre-calculus/id6503323104/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 5 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 89 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Enrique Ruiz Velasco Sanchez](https://appshunter.io/developer/1498238762) | [Mehmet Demir](https://appshunter.io/developer/1522952577) |

## What reviewers say

### Rompi

[App page](https://appshunter.io/ios/app/rompi/id1498238763)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pre Calculus

[App page](https://appshunter.io/ios/app/pre-calculus/id6503323104)

This AI-powered app helps with math homework by solving problems from photos and offering chat-based explanations. It allows users to save solutions, use voice commands, and receive answers formatted in LaTeX. It aims to make learning math easier and more engaging.

**Highlights:** Solve math homework from photos, Chat with AI for explanations, Save solved homework questions, LaTeX formatted answers, Read aloud solutions, Speech to text for voice commands

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Question Solver Math Weekly | $1.99 | per 7 days |
| Math Solver | $3.99 | per month |
| Math AI helper Super Math | $5.99 | per 7 days |
| Math Solver Weekly | $5.99 | per 7 days |
| Math AI Solver Homework Helper | $8.99 | per month |
| Homework Helper Super Math ai+ | $8.99 | per month |
| Solver Mah Premium Yearly | $44.99 | per year |
| Math Question Solver Premium | $49.99 | per year |


## Frequently asked questions

### Is Rompi free?

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

### Is Pre Calculus free?

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

### Do Rompi or Pre Calculus have ads?

Neither Rompi nor Pre Calculus shows ads.

### Which is updated more often, Rompi or Pre Calculus?

Rompi ships an update every 20 months, and Pre Calculus every 5 weeks. Most recently, Rompi was updated on October 2, 2026 and Pre Calculus on October 2, 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.*