# Rectifi vs Centering50

The clearest difference is review sentiment: Rectifi at 100% against Centering50's 0%. Rectifi also leads on ads (none vs shown) and rating (5.0 vs 4.6). Centering50's advantage is iOS requirement (16.2 vs 18.0). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Rectifi sells 1 in-app purchase, starting at $7.99 per month and Centering50 sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Rectifi holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 23 and 42 respectively. Written reviews point the same way: 100% of Rectifi's written reviews are positive against 0% of Centering50's.

Rectifi ships an update every 11 days, Centering50 every 8 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Rectifi | Centering50 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (23 ratings)](https://appshunter.io/ios/app/rectifi-card-centering-tool/id6759215052/reviews)** | [4.6 (42 ratings)](https://appshunter.io/ios/app/centering50-card-grading-tool/id6759667301/reviews) |
| Number of ratings | 23 | **42** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 days | **Every 8 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 53 MB | 155 MB |
| Requires iOS | 18.0 | **16.2** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Echan Ventures, LLC](https://appshunter.io/developer/1877471240) | [FUK WAI LI](https://appshunter.io/developer/1880074668) |

## What reviewers say

### 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 |


### Centering50

[App page](https://appshunter.io/ios/app/centering50-card-grading-tool/id6759667301)

This tool helps collectors accurately measure card centering ratios for TCG and sports cards. It uses AI-assisted scanning and manual guides to provide precise measurements, helping users predict grades and save on submission fees.

**Highlights:** AI-assisted border detection, Manual measurement guides, Front and back analysis, 15x precision zoom, Grading standard library, Dynamic contrast adjustment

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Monthly | $4.99 | per month |
| Unlimited Yearly | $24.99 | per year |
| Full Version Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is Rectifi free?

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

### Is Centering50 free?

Centering50 is free to download, with in-app purchases available.

### Which has better reviews, Rectifi or Centering50?

Rectifi is rated higher. Rectifi averages 5.0 out of 5 from 23 ratings, while Centering50 averages 4.6 from 42 ratings.

### Do Rectifi or Centering50 have ads?

Centering50 shows ads; Rectifi does not.

### Which is updated more often, Rectifi or Centering50?

Rectifi ships an update every 11 days, and Centering50 every 8 days. Most recently, Rectifi was updated on October 24, 2026 and Centering50 on October 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.*