# Card Centering Calculator — user reviews > 128 indexed App Store user reviews of Card Centering Calculator by Jade Lizard Software LLC, rated 4.70/5 from 2,310 ratings. - Source: https://appshunter.io/ios/app/card-centering-calculator/id6661022837/reviews - App overview in markdown: https://appshunter.io/ios/app/card-centering-calculator/id6661022837.md - Rating breakdown: 5★ 2,045 · 4★ 108 · 3★ 28 · 2★ 18 · 1★ 111 ## What do users think of Card Centering Calculator? Overall sentiment: positive **Pros** - 👍 Intuitive and flexible - 🚀 Provides great information on centering - 💡 Helpful for graders and collectors - 👍 Easy to use and user-friendly - 👍 Accurate and works as a physical tool **Cons** - 🐛 Centering measurement doesn't work properly - 🔒 Grading information locked behind paywall - 🐛 Camera quality issues, app resets during use **Commonly reported bugs** - Centering measurement resets during use - Image rotation doesn't stay in place **Most requested features** - Thinner and dashed centering lines for better visibility - Free access to grading information without subscription ## Newest reviews (10 of 128) ### 4/5 — Can’t log in *2026-07-10, version 2.0.1* I got a new phone and decided to use a new Apple account for various reasons. It will not let me log into my account that I had things saved on and premium pass. Besides that it is a great app with a great caused if I can log into my account . ### 4/5 — Ok but *2026-07-06, version 2.0* This app doesn’t really grade your card so I would if it would put what it thinks the card is graded ### 2/5 — have to pay *2026-07-05, version 2.0* I was looking for a free grading app and i stumble across this app and with this app you have to pay. ### 2/5 — New update *2026-07-03, version 2.0* Not enjoying the new update, I used to use the X, Y and Z axis adjustment tool all the time and that seems to be gone. I assume it was replaced by perspective fix but it’s not as good and doesn’t work properly. V1 was a better app unfortunately. ### 3/5 — Bien mais facilement améliorable *2026-06-10* Très bonne application dans l’ensemble, avec une interface agréable et des mesures cohérentes. Cependant, plusieurs points limitent encore sa précision et son intérêt pour les collectionneurs exigeants. Le principal défaut concerne les repères de centrage, qui sont trop épais. Il est parfois difficile de les positionner exactement sur les bordures de la carte, ce qui peut influencer le résultat final. Un zoom plus puissant serait également appréciable afin d’effectuer des mesures plus précises, notamment sur les cartes à limitation un peu litigieuses. Il manque aussi certaines fonctionnalités importantes : la possibilité d’enregistrer un historique des cartes déjà analysées pour les consulter rapidement par la suite, ainsi que la possibilité de sauvegarder simultanément l’avant et le dos d’une même carte dans une seule évaluation. Ces ajouts rendraient l’application beaucoup plus pratique pour suivre et documenter une collection. Malgré ces points d’amélioration, l’application reste l’une des meilleures en terme de rapport qualité prix que j’ai pu essayer pour l’évaluation du centering. **Developer response:** Merci beaucoup pour ce retour très détaillé et constructif. Je l’apprécie vraiment. La version 2.0 vient d’être publiée et elle répond justement à ces points : les repères de centrage ont été améliorés pour permettre des ajustements plus précis, le zoom est plus puissant, et il est maintenant possible d’enregistrer les cartes pour les consulter plus tard. La mise à jour ajoute également la possibilité de sauvegarder l’avant et le dos d’une même carte dans une seule évaluation. Merci encore d’avoir pris le temps de partager ces suggestions. N’hésitez pas à essayer la version 2.0 et à me dire ce que vous en pensez ! Désolé si la formulation n’est pas parfaite, j’utilise un traducteur. ### 1/5 — Greedy devs *2026-05-25, version 1.11* Garbage app is now FULL of ads. Trash devs need to walk off a cliff. Greedy pos ### 5/5 — Great Tool for Express Pre-Grading *2026-05-07, version 1.11* Use this for Pre-Grade Centering at Shows. Really wish there was way for previous centering/image to see what it was. Overall easy to use! ### 1/5 — Trash product *2026-04-30, version 1.11* Camera sucks and can’t calibrate. It’s such a bad app ### 4/5 — Good but *2026-04-27, version 1.11* I like it but I wish there was a setting to account for tilted card art like my card is slightly rotated counterclockwise and I want to grade it but don’t know if it’s worth it ### 5/5 — Great app *2026-04-22, version 1.11* So happy I found this ## Most critical reviews (10 lowest-rated) ### 1/5 — Update destroyed app *2026-07-06, version 2.0* Card centering warp fixing not working anymore. Dragging the dots to each corner isn’t working ### 1/5 — Gutted the entire app *2026-07-04, version 2.0* This app used to be wonderful. You could easily switch the rotation of the card and perspective of it right at the bottom of the screen. Now I have to click an entire different screen. Click some circles and hope that AI generates a good perspective for me to lineup it’s terrible. I used to be able to line it up perfectly now I can’t why would you do this to your app? If it isn’t broke, don’t fix it I’ve never wanted a refund for an application on the App Store so bad before! Insert the Homelander meme “it was perfect”. It’s so applicable to this. ### 1/5 — Can’t manually adjust perspective *2026-07-02, version 2.0* After the recent update, using the automatic perspective adjuster, the cards are slanted and can’t make it straight ### 1/5 — Bugs *2026-07-02, version 2.0* Has some bugs currently. Rotation slider gone, was. A great app before ### 1/5 — Not accurate or consistent *2026-06-29, version 2.0* The tool simply does not work. You will get different measurements for the same card constantly and it doesn’t often align with a manual centering tool results. The ads are extremely intrusive and long. Update: Developer says it must use ads, but there are free apps and online platforms that are more reputable and consistent and that have no ads. ### 1/5 — Not accurate or consistent *2026-06-07, version 1.11* The tool simply does not work. You will get different measurements for the same card constantly and it doesn’t often align with a manual centering tool results. The ads are extremely intrusive and long. ### 1/5 — eat one *2026-06-05, version 1.11* Spam ads that try and get you to download a data stealing app. Get a life bozos ### 1/5 — Stupid *2026-05-31, version 1.11* Makes you instantly buy without being able to grade your card ### 1/5 — It works, but *2026-05-31, version 1.11* It continuously gives you ads for a phone cleanup app saying your phone has been hacked. Absolutely do not recommend. ### 1/5 — Useless & Buggy *2026-05-31, version 1.11* Impossible to even take a picture because of the auto detection feature failing. Did all the tips and tricks and it’s still not working. Don’t even bother with this app. ## Most praised reviews (10 highest-rated) ### 5/5 — Perfect *2026-08-21, version 2.0.1* Excellent app to review centering of cards before buying them ### 5/5 — Amazing *2026-08-17, version 2.0.1* This app is great the premium version is a one time payment and helps so much. The tools in the app helps me decide what I want to send in for grading. ### 5/5 — Works as intended *2026-07-27, version 2.0.1* Honestly works well 👍 ### 5/5 — Accurate time saving tool *2026-07-18, version 2.0.1* Do yourself a favor and get this tool. It’s a huge improvement over the physical centering tools and it’s the most valuable tool in my toolbox, including maybe my loupe. Are you really going to slide a piece of acrylic or plastic around on the surface of your cards trying to get the card centered up? You can have the card in a penny sleeve but those just make the card stick to the plastic. They’re also really hard to read and hard to use. While measuring the left side you’re constantly wondering if the right side is still lined up. With this tool, you don’t have those worries. The perspective fix feature works incredibly well too, but you’ll rarely need it because the leveling feature on the camera works great. I take my pictures about 8 inches from the card when The leveler gives me the green and I rarely need to fix the perspective, but I will use it anyway because of the zoom it gives me into my corners. I got this tool originally because the AI apps I was testing turned out to be really bad at judging centering, so this app hits the sweet spot of digital aid and DYI. There is a lot of variance in how the different grading companies will ding your cards for centering and it’s super helpful to see all of their probable scores in real time in one place. The dev is very responsive. ### 5/5 — Great app! *2026-07-08, version 2.0.1* Been using it for a couple years now it’s absolutely goated ### 5/5 — Amazing app *2026-07-02, version 2.0* Used to check my cards before getting it grade and it’s always accurate! ### 5/5 — Super Helpful *2026-06-30, version 2.0* Makes checking centering stupid easy and definitely saved me from sending in a few cards that weren’t worth grading. ### 5/5 — Decent app *2026-06-27, version 1.11* W grading app ### 5/5 — Works well. Zoom in Suggestion *2026-06-15, version 1.11* It works well; however, I have one suggestion. Would it be possible for you to make the border lines shrink as you zoom in so that they are the same size proportionally as to when you aren’t zoomed in? I find it kind of tedious when you zoom in to X15 and the lines are massive. ### 5/5 — AWESOME *2026-05-15, version 1.11* Great for measuring my cards! Got my 10s easy! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*