# Grade Sync Pro vs Card grader º

The clearest difference is monetization model: Grade Sync Pro at freemium against Card grader º's subscription. Grade Sync Pro also leads on update cadence (daily vs every 2 months) and rating (5.0 vs 4.7). Card grader º's advantage is ratings volume (7 vs 2) and iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Grade Sync Pro sells 1 in-app purchase, starting at $24.99 per month and Card grader º sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Grade Sync Pro holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 2 and 7 respectively.

Grade Sync Pro ships an update daily, Card grader º every 2 months. The most recent releases landed on September 8, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Grade Sync Pro | Card grader º |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/grade-sync-pro/id6759976779/reviews)** | [4.7 (7 ratings)](https://appshunter.io/ios/app/card-grader/id6763908530/reviews) |
| Number of ratings | 2 | **7** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 months |
| Monetization | **Freemium** | Subscription |
| Size | 25 MB | 92 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mario Miron](https://appshunter.io/developer/1832534931) | [Alberto Soto](https://appshunter.io/developer/1702225144) |

## What reviewers say

### Grade Sync Pro

[App page](https://appshunter.io/ios/app/grade-sync-pro/id6759976779)

This AI-powered tool helps trading card enthusiasts identify, analyze, and estimate the condition of collectible cards. It provides detailed grading analysis, centering tools, and market price insights to assist collectors and investors.

**Highlights:** AI card identification, AI grading analysis, Advanced centering tool, PSA submission preparation, Market price insights, Personal card inventory

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GSP Pro Monthly | $24.99 | per month |


### Card grader º

[App page](https://appshunter.io/ios/app/card-grader/id6763908530)

Instantly evaluate trading cards using advanced AI to analyze condition, including centering, edges, corners, and surface. Get detailed grading breakdowns to make smarter decisions about buying, selling, or managing your collection.

**Highlights:** AI-powered grading, Analyze centering, edges, corners, surface, Detailed condition breakdown, Estimate card quality, Manage and track collection, Fast and accurate evaluations

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $2.99 | per 7 days |
| Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Grade Sync Pro free?

Grade Sync Pro is free to download, with in-app purchases available.

### Is Card grader º free?

Card grader º is free to download, with in-app purchases available.

### Which has better reviews, Grade Sync Pro or Card grader º?

Grade Sync Pro is rated higher. Grade Sync Pro averages 5.0 out of 5 from 2 ratings, while Card grader º averages 4.7 from 7 ratings.

### Do Grade Sync Pro or Card grader º have ads?

Neither Grade Sync Pro nor Card grader º shows ads.

### Which is updated more often, Grade Sync Pro or Card grader º?

Grade Sync Pro ships an update daily, and Card grader º every 2 months. Most recently, Grade Sync Pro was updated on September 8, 2026 and Card grader º on September 25, 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.*