# CaseGrade vs Yikou

The clearest difference is in-app purchases: Yikou at none against CaseGrade's 3. Yikou also leads on update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CaseGrade sells 3 in-app purchases, starting at $59.99 per month. Yikou asks for nothing beyond the download.

CaseGrade ships an update every 4 months, Yikou fortnightly. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CaseGrade | Yikou |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/casegrade/id6766713468/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 0 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CaseGrade LLC](https://appshunter.io/developer/1896317733) | [Yeonni Lee](https://appshunter.io/developer/1710530643) |

## 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 |


### Yikou

[App page](https://appshunter.io/ios/app/yikou-learn-chinese/id6777601862)

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

**In-app purchases:** none


## Frequently asked questions

### Is CaseGrade free?

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

### Is Yikou free?

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

### Do CaseGrade or Yikou have ads?

Neither CaseGrade nor Yikou shows ads.

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

CaseGrade ships an update every 4 months, and Yikou fortnightly. Most recently, CaseGrade was updated on October 6, 2026 and Yikou on October 24, 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.*