# SwiftMath vs lemma

The clearest difference is device support: lemma at 3 against SwiftMath's 1. lemma also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. SwiftMath sells 2 in-app purchases, starting at $1.99 per 7 days and lemma sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SwiftMath ships an update every 4 days, lemma every 3 days. The most recent releases landed on September 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SwiftMath | lemma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lemma-comp-math-trainer/id6770669166/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 31 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Thomas van Os](https://appshunter.io/developer/1869312189) | [Roger You](https://appshunter.io/developer/1804598101) |

## What reviewers say

### SwiftMath

[App page](https://appshunter.io/ios/app/swiftmath-mental-math-pro/id6757859918)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $1.99 | per 7 days |
| Pro Lifetime | $8.99 | one-time |


### lemma

[App page](https://appshunter.io/ios/app/lemma-comp-math-trainer/id6770669166)

This app provides focused, daily practice for quantitative interviews, featuring timed sprints of math and probability problems. It tracks your skill across disciplines with adaptive difficulty and offers hints and solutions to help you improve. Designed for those preparing for trading firm interviews or seeking to build a quantitative thinking habit.

**Highlights:** Daily timed problem sprints, Per-category ELO skill tracking, Adaptive difficulty, Hints and step-through solutions, Streaks, XP, and achievements, Leaderboard

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lemma Premium | $6.99 | per 7 days |
| Lemma Premium | $9.99 | per month |
| Lemma Premium | $59.99 | per year |


## Frequently asked questions

### Is SwiftMath free?

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

### Is lemma free?

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

### Do SwiftMath or lemma have ads?

Neither SwiftMath nor lemma shows ads.

### Which is updated more often, SwiftMath or lemma?

SwiftMath ships an update every 4 days, and lemma every 3 days. Most recently, SwiftMath was updated on September 25, 2026 and lemma on October 12, 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.*