# CaseGrade vs lemma

The clearest difference is update cadence: lemma at every 3 days against CaseGrade's every 4 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. CaseGrade sells 3 in-app purchases, starting at $59.99 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 CaseGrade against 5.0 for lemma. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CaseGrade ships an update every 4 months, lemma every 3 days. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | CaseGrade | lemma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/casegrade/id6766713468/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/lemma-comp-math-trainer/id6770669166/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 27 MB | 31 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [CaseGrade LLC](https://appshunter.io/developer/1896317733) | [Roger You](https://appshunter.io/developer/1804598101) |

## What reviewers say

### CaseGrade

[App page](https://appshunter.io/ios/app/casegrade/id6766713468)

Prepare for consulting interviews with adaptive drills and practice systems tailored to your target firms. Master mental math, quantitative cases, market sizing, synthesis, and frameworks. Track your progress and build the skills needed to land your offer.

**Highlights:** Adaptive practice system, Mental math drills, Quantitative case practice, Market sizing exercises, Synthesis and recommendation practice, Frameworks and structures, Progress tracking and skill reports

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ascend | $59.99 | per month |
| Apex | $119.99 | per month |
| Partner Track | $299.99 | 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 CaseGrade free?

CaseGrade 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, CaseGrade or lemma?

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

### Do CaseGrade or lemma have ads?

Neither CaseGrade nor lemma shows ads.

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

CaseGrade ships an update every 4 months, and lemma every 3 days. Most recently, CaseGrade was updated on October 6, 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.*