# Grade.IQ vs Rectifi

The clearest difference is update cadence: Grade.IQ at every 4 days against Rectifi's every 11 days. Grade.IQ also leads on 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.IQ sells 3 in-app purchases, starting at $2.99 per month and Rectifi sells 1 in-app purchase, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Grade.IQ ships an update every 4 days, Rectifi every 11 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Grade.IQ | Rectifi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (23 ratings)](https://appshunter.io/ios/app/rectifi-card-centering-tool/id6759215052/reviews)** |
| Number of ratings | — | **23** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 11 days |
| Monetization | — | Freemium |
| Size | 50 MB | 53 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MARCUS WILSON HUGHES](https://appshunter.io/developer/1877077258) | [Echan Ventures, LLC](https://appshunter.io/developer/1877471240) |

## What reviewers say

### Grade.IQ

[App page](https://appshunter.io/ios/app/gradeiq/id6759155592)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grade Curious | $2.99 | per month |
| Grade Enthusiast | $5.99 | per month |
| Grade Obsessed | $9.99 | per month |


### Rectifi

[App page](https://appshunter.io/ios/app/rectifi-card-centering-tool/id6759215052)

Scan trading cards to accurately assess centering against industry standards like PSA, BGS, and CGC. Features automatic perspective correction for precise measurements, even from awkward angles. Offers guided corner placement and detailed analysis for various card types.

**Highlights:** Automatic perspective correction, Centering analysis for PSA, BGS, CGC, Guided corner placement, Automatic card detection, Standard and Pro scan modes, Scan history and comparison

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rectifi Pro Monthly | $7.99 | per month |


## Frequently asked questions

### Is Grade.IQ free?

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

### Is Rectifi free?

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

### Do Grade.IQ or Rectifi have ads?

Neither Grade.IQ nor Rectifi shows ads.

### Which is updated more often, Grade.IQ or Rectifi?

Grade.IQ ships an update every 4 days, and Rectifi every 11 days. Most recently, Grade.IQ was updated on October 28, 2026 and Rectifi 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.*