# BizMath vs lemma

The clearest difference is update cadence: lemma at every 3 days against BizMath's every 2 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. BizMath sells 1 in-app purchase, starting at $3.99 per month 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.

On the App Store both sit at effectively the same score — 5.0 for BizMath against 5.0 for lemma. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

BizMath ships an update every 2 months, lemma every 3 days. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | BizMath | lemma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/bizmath/id6759557274/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/lemma-comp-math-trainer/id6770669166/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 36 MB | 31 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [BRENDAN JAMES WILCOX](https://appshunter.io/developer/1879492037) | [Roger You](https://appshunter.io/developer/1804598101) |

## What reviewers say

### BizMath

[App page](https://appshunter.io/ios/app/bizmath/id6759557274)

This app trains mental math skills essential for consulting and finance interviews. It offers unique arithmetic and word problems with realistic business scenarios, estimation, and timed practice modes. Track your progress and access reference guides for shortcuts and concepts.

**Highlights:** Unique arithmetic and word problems, Business scenario templates, Estimation and timed practice modes, Expert difficulty levels, Progress tracking, Built-in reference guides

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited | $3.99 | per month |


### 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 BizMath free?

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

### Is lemma free?

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

### Which has better reviews, BizMath or lemma?

BizMath and lemma are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do BizMath or lemma have ads?

Neither BizMath nor lemma shows ads.

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

BizMath ships an update every 2 months, and lemma every 3 days. Most recently, BizMath was updated on September 18, 2026 and lemma on September 19, 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.*