Card Centering Calculator vs keepbin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Card Centering Calculator
This app helps collectors and traders measure card centering ratios for grading. It uses AI to detect centering or allows manual adjustments for precise measurements, displaying potential grades from major companies.
- AI-powered card centering detection
- Manual centering measurement with zoom
- Grade comparisons for PSA, BGS, SGC, CGC, TAG, ACE
- Front and back side centering measurement
- Grading standards reference guide
- Off-center visualization tool
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Card Centering Calculator is the ultimate tool for measuring your card's centering ratios before grading. Whether you collect Pokémon, One Piece, Lorcana, Yu-Gi-Oh!, Magic, baseball, basketball, football, or other trading and sports cards, the app helps you quickly measure centering, compare grading standards, and decide if your card may be worth submitting. Scan or upload a card image to calculate real-time centering ratios, such as 55/45 or 60/40, and instantly compare the highest potential centering grades from major grading companies including PSA, BGS, SGC, CGC, TAG, and ACE. Wondering if your card has centering worthy of a Gem Mint 10? Measure it before you submit. --- Card Scanner With Auto Centering Detection --- Scan or upload your card and let the app automatically detect the card edges and calculate centering ratios. --- Precise Ratio Measurements --- Manually adjust measurement guides on each side of the card for precise centering calculations. Use zoom for ultra-accurate adjustments and fine-tuning. --- Measure in Pixels, Millimeters, or Inches --- Switch from percentages to real measurements. View each border's width in pixels, millimeters, or inches to double-check against calipers or calculate centering your own way. --- Saved Cards --- Save cards to your collection and come back to them later. Add tags, filter your saved cards, and keep track of cards you may want to grade, sell, trade, or review again. --- Perspective Fix Tool --- Correct skewed, angled, bent, or warped card images before measuring. The Perspective Fix tool helps straighten card edges so you can get cleaner and more accurate centering measurements. --- Grade Comparisons --- Instantly see the best possible centering grades from PSA, BGS, CGC, SGC, TAG, and ACE as you adjust your card's ratios. Compare grading companies and see how each company's centering standards may affect your card. --- Front and Back Side Grading --- Measure centering for both the front and back of your card, since grading standards differ between sides. --- Pokémon e-Reader Card Mode --- Measure Expedition, Aquapolis, and Skyridge e-Reader cards correctly. The dot-code strip makes the left and bottom borders wider by design, so e-Reader mode compares the top and right borders the way graders do and saves the setting with each card. --- Grading Standards Reference --- View centering standards from PSA, BGS, CGC, SGC, TAG, and ACE in one convenient reference section. --- Cropping and Image Tools --- Crop card images, upload from your photo library, scan with the camera, or upload a card image from a URL. --- Compatible With All Cards --- Use Card Centering Calculator with TCG cards, sports cards, and other collectible cards, including Pokémon, One Piece, Yu-Gi-Oh!, Lorcana, Magic: The Gathering, baseball, basketball, football, and more. Why Centering Matters: Centering plays a major role in determining a card's grade from professional grading companies. Even if a card is otherwise in excellent condition, poor centering can reduce its grade and impact its value. Card Centering Calculator helps you measure centering ratios before submitting cards for grading, giving you more information when deciding which cards to grade, sell, trade, or keep raw. Note: Card Centering Calculator focuses on measuring centering ratios. Professional grading companies such as PSA, BGS, CGC, SGC, TAG, and ACE also evaluate other factors, including corners, edges, surface wear, scratches, dents, print quality, and overall condition. This app does not assess those additional grading criteria.
keepbin
This app helps you declutter your photo library by presenting one image at a time for you to keep or delete. It prioritizes videos for maximum space recovery and ensures your photos never leave your device. All deletions are final only after your explicit confirmation.
- Random photo presentation
- Swipe to keep or delete
- Bin for recoverable deletions
- Prioritizes video deletion
- Offline functionality
- No cloud upload
- One-time deletion confirmation
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You have nine thousand photos and a full phone. Opening the gallery and trying to pick doesn't work: there are too many, they all look important, and you end up closing it without deleting anything. keepbin turns the problem around. It shows you one photo, at random, full screen. All you have to do is decide about that one. Swipe right and you keep it. It never comes up again. Swipe left and it drops into the bin. NOTHING IS DELETED UNTIL YOU SAY SO The bin is just a waiting list. You can undo, close the app and come back tomorrow: what you binned is still there. When you have had enough, you empty it all at once, and that is where it actually gets deleted, with a single confirmation instead of forty. VIDEOS ARE WHAT TAKE UP ROOM A minute of 4K weighs more than three hundred photos. keepbin mixes them in with everything else, because they are the ones that will really give you your space back. YOUR PHOTOS NEVER LEAVE YOUR PHONE No accounts, no sign-up, no cloud. keepbin never uploads, copies or shares a single one of your photos. Nobody sees them: not us, not anyone. AN HONEST HEADS-UP When you delete, iOS keeps the photos for another 30 days under "Recently Deleted". You can restore them during that time, but the space is not quite yours yet. The app tells you this before and after deleting, because we would rather warn you than promise you space you don't have yet. FREE, AND NOTHING ELSE No ads, no subscriptions, no in-app purchases. In English and Spanish. Works offline.
Screenshots
Verdict
The clearest difference is review sentiment: keepbin at 100% against Card Centering Calculator's 60%. keepbin also leads on in-app purchases (none vs 5) and ads (none vs shown). Card Centering Calculator's advantage is ratings volume (2.5K vs 2). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Card Centering Calculator sells 5 one-off in-app purchases. keepbin asks for nothing beyond the download.
keepbin holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Card Centering Calculator has 2.5K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 60% of Card Centering Calculator's written reviews are positive against 100% of keepbin's.
Card Centering Calculator ships an update monthly, keepbin every 2 weeks. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.
| Parameter | Card Centering Calculator | keepbin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.5K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 60.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 2.5K — better | 2 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 21 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Jade Lizard Software LLC | Juan Martin |
Customer experience
Card Centering Calculator
keepbin
Bugs and requests
Card Centering Calculator
Reported bugs
2 issues- Centering measurement resets during use
- Image rotation doesn't stay in place
Requested features
2 requests- Thinner and dashed centering lines for better visibility
- Free access to grading information without subscription
keepbin
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Card Centering Calculator
- Small Tip$0.99
- Medium Tip$1.99
- Unlock Premium$4.99
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- Large Tip$4.99
- Pristine Tip$9.99
keepbin
No in-app purchases
Questions
Is Card Centering Calculator free?
Is keepbin free?
Which has better reviews, Card Centering Calculator or keepbin?
Do Card Centering Calculator or keepbin have ads?
Which is updated more often, Card Centering Calculator or keepbin?
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