# Steel Data vs CardAlign

The clearest difference is in-app purchases: Steel Data at none against CardAlign's 6. Steel Data also leads on device support (3 vs 1) and iOS requirement (10.0 vs 17.0). CardAlign's advantage is update cadence (every 4 days vs monthly). On price and ads there is nothing between them.

Both are free to download. CardAlign sells 6 one-off in-app purchases. Steel Data asks for nothing beyond the download.

Steel Data ships an update monthly, CardAlign every 4 days. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Steel Data | CardAlign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/steel-data/id1255989099/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free | — |
| Size | 32 MB | 264 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Huaping Ye](https://appshunter.io/developer/1639123510) | [海鹏 丁](https://appshunter.io/developer/6798921001) |

## What reviewers say

### Steel Data

[App page](https://appshunter.io/ios/app/steel-data/id1255989099)

This app offers a comprehensive reference for various steel types, sizes, and unit weights. It's designed to assist professionals in the construction industry with quick access to essential steel data.

**Highlights:** Extensive steel type catalog, Detailed size information, Unit weight calculations, Construction industry focus, General reference tool

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

**In-app purchases:** none


### CardAlign

[App page](https://appshunter.io/ios/app/cardalign/id6798984060)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 AI Scores – First Purchase | $2.99 | one-time |
| 10 AI Card Condition Scores | $5.99 | one-time |
| 30 AI Scores – First PurchaseF | $7.49 | one-time |
| 30 AI Card Condition Scores | $14.99 | one-time |
| 100 AI Scores – First Purchase | $19.99 | one-time |
| 100 AI Card Condition Scores | $39.99 | one-time |


## Frequently asked questions

### Is Steel Data free?

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

### Is CardAlign free?

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

### Do Steel Data or CardAlign have ads?

Neither Steel Data nor CardAlign shows ads.

### Which is updated more often, Steel Data or CardAlign?

Steel Data ships an update monthly, and CardAlign every 4 days. Most recently, Steel Data was updated on October 3, 2026 and CardAlign on October 14, 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.*