# Stamp Analyser > Digitally measures stamp perforations, frames, and margins for grading. (iPhone/iPad app by rakium Inc..) - Source: https://appshunter.io/ios/app/stamp-analyser/id777226676 (this page in markdown: same URL + `.md`) - Developer: [rakium Inc.](https://appshunter.io/developer/525729465) - Category: Reference, Lifestyle - Price: $4.99 - Rating: 3.70/5 from 10 App Store ratings · 14 written reviews indexed - Age rating: 4+ - Requires: iOS 26.0 · 5 MB - Languages: American English - Released: 2014-02-14 - Data updated: 2026-08-24 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/stamp-analyser/id777226676/reviews.md ## What is Stamp Analyser? Accurately Grade and Measure Stamp Perforations The Stamp Analyser digitally measures the stamp perforations, the stamp frame and the balance among the four margins to determine the centering grade of the stamp. It also allows you to measure the distance between any two points on a scanned or photographed image. The Stamp Analyser provides this information based on accurate measurement; no more guesswork. All you need to do is to provide a good scan or a good photograph of the stamp and the Stamp Analyser does the rest. Optionally, you can add the stamp Soundness and Eye Appeal components to obtain the final grade. The Soundness and Eye Appeal components are based on the PSE Grading Guide. The Stamp Analyser user interface has been designed to be intuitive and simple. On the Mac, you simply drag and drop your stamp image into the Stamp Analyser. On the iPad and iPhone, you can either take a photo of the stamp or select it from the photo library. IOS 16.1 or higher required. More detail on Rakium.com ## Key features - Measures stamp perforations - Analyzes stamp frame - Calculates margin balance - Determines centering grade - Measures distance between points - Optional soundness and eye appeal grading ## Chart rankings - #117 in Top Paid · Reference (US App Store) ## Recent user reviews (10 of 14) All indexed reviews: https://appshunter.io/ios/app/stamp-analyser/id777226676/reviews.md ### 3/5 — It works, just learn how to use *2025-05-29* It does work, try to use it on your computer, it’s hard to work it on a smartphone. The crop tool really helps. I compared a Superb 98 from PSE and the app gave it a 93, pretty closed. However, this tool is a guide for you to identify those worth sending to be professionally grade. I do recommend the developer to include the arrows on the keyboard and the ability to move the bars (both violet and yellow) as a whole. Also a magnifying glass and improvement on the sharpness of the image when loaded into the app. It’s very very affordable compared to other tools that you will end up sending the stamps to be graded anyway. You can print a certificate using this app on the computer, that way you can keep records of the stamps and add some order to your collection. I hope this helps! ### 4/5 — A must have if you collect stamps *2022-07-15* Gives very accurate perforation values, both for scanned and photographed stamps. I prefer to scan my stamps and then analyse them, as I find this easier. The app is also very useful for determining the stamp centering. ### 2/5 — Not helpful for us stamps *2022-05-24* Interesting. No template for US stamps. Perforations display unhelpful. Sorry. Thought it had potential: it’s getting harder for me to see perforation on scale, though this would help. Have not tried coin templates, so I can’t speak to that. **Developer response:** You should at least try to understand how the App works before writing your review.. How did you determine that there should be a separate template for US stamps? There is only one template for ALL world-wide stamps, including US stamps. In the current version, You can either use the circle Template or coins when photographing stamps. To photograph the stamp, you simply place the stamp and your selected coin or printed template on a black background and take photo . The app will analyze the stamp and provide the results. We also did not understand your other comment "it’s getting harder for me to see perforation on scale" Please let us know what you mean by this so that we can help you out. For details , visit rakium.com ### 5/5 — Terrific customer service! *2022-03-06* I really like this app. I recently had an issue with downloading photos and contacted customer service. It was late Saturday night. I got a replay in 5 minutes and over the next half hour 2-3 more emails and screen shots to fix the problem. I have never experienced better customer service and highly recommend this app! ### 1/5 — Waste of time *2022-01-24, version 15.0* Tried it on a 15x14 perf stamp, first time it reported 30x100 second time imperf ### 5/5 — Terrific App *2019-05-19* It took me about ten minutes to fully master it but it was well worth it. I use a 2€ coin and the results are as advertised. Of course a heavy cancel or margin selvage will have a negative effect but you should get sufficient data to identify the stamp. The only way to improve this App would be to come up with a color identification feature. This software is well worth the $5.00. ### 5/5 — Amazing accuracy *2018-12-23* I have found this app incredibly accurate in measuring both perforations and frame dimensions of a stamp. The app now includes a measuring feature that I have found accurate to .1 mm. I scanned multiple millimeter devices at 600dpi ... then cropped 25mm sections and measured with this app. The results were dead on at 25mm. I prefer to scan multiple stamps at 600dpi ... Photographing with a coin works just fine. Frederick Central,SC ### 5/5 — Great App and Support *2018-11-17* This is a must have for any stamp collector. It takes all the guess work out of grading your collection. The support is excellent too. ### 2/5 — It’s okay, could be better *2018-04-06, version 9.3* The camera is a bit fussy and doesn’t like stamps on a white background. Good recognition, but the result is saved in a PDF. Ideally it would be great if the results could be saved in a listed inventory. PDF file any chance you could include the name of the stamp in the PDF? Shows info on the analyser screen, but not on the PDF, which is sort of the most important bit. ### 5/5 — Struggle to success *2017-08-05* I assumed I would be able to simply photograph my stamps and get a fast read on the perforations. It does work with photographing, provided you get the QR symbol from the developer web site which I missed on the first go-around. The app developer was most kind and stayed with me through success. To get the accuracy I desired it is essential to scan the stamps, not simply photograph them. Obviously, dpi setting on the scanner must coincide with the app dpi setting. This should occur automatically of you have scanned properly. Because you have to know how to use your scanner and its related software, and if you are a novice like me, be prepared to invest a few hours fiddling around with it before you can reliably use the scans with the app. With that done, the app performs great. Rashid, the developer, takes customer support to a new level. Thanks Rashid ## Frequently asked questions about Stamp Analyser ### What is Stamp Analyser used for? Stamp Analyser is used to digitally measure stamp perforations, frames, and margin balance to determine the centering grade of a stamp. It provides accurate measurements for stamp analysis, removing guesswork. ### How does Stamp Analyser determine the centering grade? It measures the stamp perforations, the stamp frame, and the balance among the four margins. This data is used to calculate the centering grade of the stamp. ### Can Stamp Analyser measure other aspects of a stamp? Yes, optionally, you can add the stamp Soundness and Eye Appeal components to obtain the final grade. These components are based on the PSE Grading Guide. ### What devices is Stamp Analyser compatible with? Stamp Analyser is available for iPhone and iPad. It requires iOS 16.1 or higher. ### How much does Stamp Analyser cost? Stamp Analyser is a paid application priced at $4.99. There are no in-app purchases or advertisements mentioned. ### How often is Stamp Analyser updated? The app was last updated in 2025-12-15, indicating regular updates. The latest version is 16. ### What is the age rating for Stamp Analyser? Stamp Analyser has an age rating of 4+, making it suitable for a wide range of users. ### Does Stamp Analyser have ads? No, Stamp Analyser does not contain advertisements. It is a paid application without any ad support. ## Version history (last 5 releases) ### 21 — 2026-08-22 - This version uses the built-in telephoto camera when available. If a telephoto camera is not available, it uses the built-in wide-angle camera with an optimized zoom factor to minimize reflections from the surface back into the camera lens. - the entering grading when taking a photo with the camera is now correctly displayed. - bug fixes ### 20 — 2026-08-08 • Redesigned the user interface using SwiftUI for a more modern experience and improved consistency with the OSX version. • Added a new perforation optimization algorithm that provides both nominal (mathematically rounded) values and precise measured values for improved accuracy. • Includes various bug fixes and performance improvements. ### 16 — 2025-12-15 - print view bug fix - will now work with IOS 26 ### 15.1 — 2025-12-08 - New interface for photographing stamps - updated algorithm for determining perforations - bug fixes ### 15.0 — 2021-12-15 - IOS 15 compatible - When photographing stamps you will no longer be required to crop the stamp. The Stamp Analyser will automatically do this for you. - The manual mode of cropping is still retained - bug fixes ## Apps similar to Stamp Analyser | App | Rating | Price | Category | | --- | --- | --- | --- | | [Stamper - Stamp Identifier](https://appshunter.io/ios/app/stamper-stamp-identifier/id6560103917) | 4.3 (52) | Free | Reference | | [Stamp Identifier - Stampico](https://appshunter.io/ios/app/stamp-identifier-stampico/id6749361095) | 4.7 (130) | Free | Reference | | [Stanley Gibbons Ltd](https://appshunter.io/ios/app/stanley-gibbons-ltd/id520514474) | 2.4 (5) | Free | Reference | | [Stampmeister - Stamp Collect](https://appshunter.io/ios/app/stampmeister-stamp-collect/id6470133451) | 4.6 (18) | Free | Reference | | [Stamp Identifier: Stamp Value](https://appshunter.io/ios/app/stamp-identifier-stamp-value/id6504858531) | 3.9 (128) | Free | Reference | | [Stamp ID Pro™: Collect Stamps](https://appshunter.io/ios/app/stamp-id-pro-collect-stamps/id1446933536) | 4.4 (303) | Free | Reference | --- *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 2026-08-24.*