# Lit Files vs Math. Trainer App

The clearest difference is in-app purchases: Lit Files at none against Math. Trainer App's 1. Lit Files also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.6). Math. Trainer App's advantage is update cadence (every 3 weeks vs every 6 months). On price and ads there is nothing between them.

Both are free to download. Math. Trainer App sells 1 one-off in-app purchase. Lit Files asks for nothing beyond the download.

Lit Files ships an update every 6 months, Math. Trainer App every 3 weeks. The most recent releases landed on September 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Lit Files | Math. Trainer App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/math-trainer-app/id6757082686/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 101 MB | 39 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tinashe Chisango](https://appshunter.io/developer/1601620568) | [Blatt, Inc](https://appshunter.io/developer/1779835943) |

## What reviewers say

### Lit Files

[App page](https://appshunter.io/ios/app/lit-files-study-and-revision/id6443919088)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math. Trainer App

[App page](https://appshunter.io/ios/app/math-trainer-app/id6757082686)

This app helps high school students memorize math formulas quickly for exams and homework. It features a formula bank, trainer mode with spaced repetition, and progress tracking to build long-term memory and confidence.

**Highlights:** Formula Bank (Algebra, Geometry, Trigonometry), Trainer Mode with Spaced Repetition, Adaptive Learning, Progress Tracking, Customizable Repetitions

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Removing ads | $1.99 | one-time |


## Frequently asked questions

### Is Lit Files free?

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

### Is Math. Trainer App free?

Math. Trainer App is free to download, with in-app purchases available.

### Do Lit Files or Math. Trainer App have ads?

Both Lit Files and Math. Trainer App show ads.

### Which is updated more often, Lit Files or Math. Trainer App?

Lit Files ships an update every 6 months, and Math. Trainer App every 3 weeks. Most recently, Lit Files was updated on September 11, 2026 and Math. Trainer App on September 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*