# Trading Interview Math Trainer vs Variance

The clearest difference is in-app purchases: Trading Interview Math Trainer at none against Variance's 2. Trading Interview Math Trainer also leads on iOS requirement (15.1 vs 26.0). Variance's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Variance sells 2 in-app purchases, starting at $24.99 per month. Trading Interview Math Trainer asks for nothing beyond the download.

Trading Interview Math Trainer ships an update every 5 months, Variance every 2 weeks. The most recent releases landed on September 18, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Trading Interview Math Trainer | Variance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/variance-the-quant-prep-app/id6760629839/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 33 MB | 18 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Trading Interview B.V.](https://appshunter.io/developer/1856959369) | [Benjamin Kawano](https://appshunter.io/developer/1885410913) |

## What reviewers say

### Trading Interview Math Trainer

[App page](https://appshunter.io/ios/app/trading-interview-math-trainer/id6755886895)

**Features:** macOS Compatibility

**In-app purchases:** none


### Variance

[App page](https://appshunter.io/ios/app/variance-the-quant-prep-app/id6760629839)

Prepare for quantitative finance interviews with this app. Practice probability, mental math, logic puzzles, and more with detailed solutions and progress tracking. Sharpen your mathematical intuition and problem-solving skills for trading and research roles.

**Highlights:** Probability practice, Mental math exercises, Logic puzzles, Detailed solutions, Progress tracking, Topic-specific practice

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Variance Pro Monthly | $24.99 | per month |
| Variance Pro Yearly | $99.99 | per year |


## Frequently asked questions

### Is Trading Interview Math Trainer free?

Trading Interview Math Trainer is free to download, with no in-app purchases.

### Is Variance free?

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

### Do Trading Interview Math Trainer or Variance have ads?

Neither Trading Interview Math Trainer nor Variance shows ads.

### Which is updated more often, Trading Interview Math Trainer or Variance?

Trading Interview Math Trainer ships an update every 5 months, and Variance every 2 weeks. Most recently, Trading Interview Math Trainer was updated on September 18, 2026 and Variance on September 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.*