# Screen Time Control vs Card Centering Tool

The clearest difference is in-app purchases: Screen Time Control at none against Card Centering Tool's 3. Card Centering Tool's advantage is update cadence (every 2 days vs every 6 weeks) and iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Card Centering Tool sells 3 in-app purchases, starting at $3.99 per 7 days. Screen Time Control asks for nothing beyond the download.

Screen Time Control ships an update every 6 weeks, Card Centering Tool every 2 days. The most recent releases landed on September 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Screen Time Control | Card Centering Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (19 ratings)](https://appshunter.io/ios/app/card-centering-tool-grader-ai/id6751784546/reviews)** |
| Number of ratings | — | **19** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 38 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Fenuku Kekeli](https://appshunter.io/developer/1822419894) | [faisal khalid](https://appshunter.io/developer/671706631) |

## What reviewers say

### Screen Time Control

[App page](https://appshunter.io/ios/app/screen-time-control-deep-work/id6751366833)

**Features:** macOS Compatibility

**In-app purchases:** none


### Card Centering Tool

[App page](https://appshunter.io/ios/app/card-centering-tool-grader-ai/id6751784546)

This tool helps collectors accurately measure card centering ratios for sports and trading cards. It provides precise measurements against professional grading standards and offers customizable viewing options for a better collecting experience.

**Highlights:** Manual centering measurement, Front & back ratio analysis, Grading reference library, Customizable viewing options, Visual ratio previews, Supports all card types

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly - Card Centering App | $3.99 | per 7 days |
| Yearly - Card Centering Tool | $29.99 | per year |
| Lifetime - Card Grading | $7.99 | one-time |


## Frequently asked questions

### Is Screen Time Control free?

Screen Time Control is free to download, with no in-app purchases.

### Is Card Centering Tool free?

Card Centering Tool is free to download, with in-app purchases available.

### Do Screen Time Control or Card Centering Tool have ads?

Neither Screen Time Control nor Card Centering Tool shows ads.

### Which is updated more often, Screen Time Control or Card Centering Tool?

Screen Time Control ships an update every 6 weeks, and Card Centering Tool every 2 days. Most recently, Screen Time Control was updated on September 20, 2026 and Card Centering Tool on October 17, 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.*