# Diamond IQ Baseball vs Slabline

The clearest difference is in-app purchases: Diamond IQ Baseball at none against Slabline's 4. Slabline's advantage is ratings volume (6 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Slabline sells 4 in-app purchases, starting at $9.99 per month. Diamond IQ Baseball asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Diamond IQ Baseball against 5.0 for Slabline. That said, the two scores are not equally well evidenced: Slabline has 6 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 11 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Diamond IQ Baseball | Slabline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/diamond-iq-baseball/id6765897916/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/slabline/id6779955828/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | Every 11 days |
| Monetization | — | Free with in-app purchases |
| Size | 31 MB | 53 MB |
| Requires iOS | **15.1** | 15.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kelly O'Donnell](https://appshunter.io/developer/1896120761) | [Hobby Smart Cases, LLC.](https://appshunter.io/developer/1722093858) |

## What reviewers say

### Diamond IQ Baseball

[App page](https://appshunter.io/ios/app/diamond-iq-baseball/id6765897916)

**In-app purchases:** none


### Slabline

[App page](https://appshunter.io/ios/app/slabline/id6779955828)

This app helps collectors manage and value their graded trading cards. It provides a protection score, live valuations, and insights into market trends. It also offers features for insurance and quick card entry.

**Highlights:** Slabline Score™ for protection, Live valuation of graded cards, Grader comparison (PSA, BGS, SGC, CGC), Concentration and liquidity analysis, Insurance-ready broker schedule, Camera scanning for card entry

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Collector Monthly | $9.99 | per month |
| Insured Monthly | $14.99 | per month |
| Collector Annual | $99.00 | per year |
| Insured Annual | $149.00 | per year |


## Frequently asked questions

### Is Diamond IQ Baseball free?

Diamond IQ Baseball is free to download, with no in-app purchases.

### Is Slabline free?

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

### Which has better reviews, Diamond IQ Baseball or Slabline?

Diamond IQ Baseball and Slabline are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.

### Do Diamond IQ Baseball or Slabline have ads?

Neither Diamond IQ Baseball nor Slabline shows ads.

### Which is updated more often, Diamond IQ Baseball or Slabline?

Diamond IQ Baseball ships an update every 11 days, and Slabline every 11 days. Most recently, Diamond IQ Baseball was updated on October 24, 2026 and Slabline 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.*