# Quant Data vs Scar

The clearest difference is in-app purchases: Scar at none against Quant Data's 4. Scar also leads on update cadence (weekly vs every 3 weeks). Quant Data's advantage is chart position (#191 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Quant Data sells 4 in-app purchases, starting at $74.99 per month. Scar asks for nothing beyond the download.

Quant Data ships an update every 3 weeks, Scar weekly. The most recent releases landed on October 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Quant Data | Scar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (43 ratings)](https://appshunter.io/ios/app/quant-data/id1602108613/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#191** | — |
| Size | 75 MB | 44 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Quant Data LLC](https://appshunter.io/developer/1602108615) | [QuantSignals, Inc.](https://appshunter.io/developer/1543121585) |

## What reviewers say

### Quant Data

[App page](https://appshunter.io/ios/app/quant-data/id1602108613)

**Currently charting:** #191 Top Grossing · Finance (US App Store)

Access real-time options order flow, including off-exchange trades and Dark Pool prints. This platform provides algorithmic scans and quantitative reports to give retail traders an edge in the options market.

**Highlights:** Real-time options order flow, Dark & Lit Pool prints, Algorithmic Quant Alerts, News + Sentiment analysis, Customizable filters & watchlist, Quantitative stock reports

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $74.99 | per month |
| Monthly Subscription (Trial) | $74.99 | per month |
| Yearly Subscription | $799.99 | per year |
| Yearly Subscription (Trial) | $799.99 | per year |


### Scar

[App page](https://appshunter.io/ios/app/scar-trading-journal/id6791444917)

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

**In-app purchases:** none


## Frequently asked questions

### Is Quant Data free?

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

### Is Scar free?

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

### Do Quant Data or Scar have ads?

Neither Quant Data nor Scar shows ads.

### Which is updated more often, Quant Data or Scar?

Quant Data ships an update every 3 weeks, and Scar weekly. Most recently, Quant Data was updated on October 10, 2026 and Scar on September 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.*