# Stone Pass: Kidney Stones — Kidney Stone Passing / Surgery > Kidney stone decision support tool based on patient data and pain assessment. (iPhone/iPad app by KnowStone LLC.) - Source: https://appshunter.io/ios/app/stone-pass-kidney-stones/id1491822657 (this page in markdown: same URL + `.md`) - Developer: [KnowStone LLC](https://appshunter.io/developer/1491822656) - Category: Health & Fitness - Price: Free - Rating: 4.79/5 from 47 App Store ratings · 4 written reviews indexed - Age rating: 12+ - Requires: iOS 9.0 · 9 MB - Languages: English - Released: 2020-02-13 - Data updated: 2026-07-05 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/stone-pass-kidney-stones/id1491822657/reviews.md ## What is Stone Pass? Kidney stone passing or surgery? If you suffer from kidney stones (a condition called nephrolithiasis), Stone Pass helps you make decisions with your doctor — through real data about what happened with people who had a kidney stone similar to yours. **How It Works ** 1. Enter information about your kidney stone (also known as a calculus of kidney or a ureteric stone) - Enter your stone's size and location, as given by your healthcare provider - Take a quick assessment to measure your kidney stone pain 2. Get information to make a more informed decision - See what percentage of people tried to pass their stone - See how many of those were successful in kidney stone passing - See how your pain compares to others with similar stones - See how your stone's size compares to all people with a stone Hopefully, you only have a kidney stone once in your life. But this means that you are forced to make decisions about your care without personal experience. The three most important factors in stone decision making are the size and location of the stone and pain severity. You can’t change the stone’s size or location, but you can understand how kidney stone pain affects decision making. Stone Pass will show how your stone compares to others, what kidney stone treatment decisions they made, and how their stone resolved. Whether your kidney stone passes on its own or requires treatment such as lithotripsy, ureteroscopy or percutaneous nephrolithotomy, our goal is that you use this information to communicate more effectively with your care provider and make the best decision for your specific situation. **About ** Stone Pass was developed for community education by Dr. Andrew Portis. Dr. Portis is a board certified urologist specializing in stone disease since 2000. He founded the HealthEast Kidney Stone Institute in St Paul, MN, USA. They created the nation’s first Joint Commission Disease Specific Care Certification in kidney stone disease in 2013. With Stone Pass, Dr Portis shares his experience in caring for over 15,000 patients like you, trying to make decisions about their kidney stones. **Source Data ** Outcomes of over 1,600 patients reported on a monthly basis to the Joint Commission as an element of Disease Specific Certification in Kidney Stone Disease have been stripped of any patient specific identification and is presented in an accessible fashion for this app. Patient Reported Outcome Measurement Information System (PROMIS®) Pain Intensity scale 3a v1.0 is integrated within app with permission from HealthMeasures. ## Key features - Enter kidney stone size and location - Assess kidney stone pain intensity - View stone passing success rates - Compare stone size to other patients - Understand treatment decision outcomes - Facilitate doctor-patient communication ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/stone-pass-kidney-stones/id1491822657/reviews.md ### 4/5 — J *2023-10-05* I liked seeing the statistics I just wish it required age im 17 and know that’s young to get them so I’m wondering if my chances would be different or if watching what I eat is something I’ll have to do for the rest of my life ### 5/5 — Wish I had this app earlier *2020-02-21* I wish I would have had this app about a week ago when I went to the ER. There’s lots of anecdotal info on the internet, but that just adds to the confusion and worry. I have a much clearer sense that I can be patient knowing that I have a 97% of passing my kidney stone. ### 4/5 — Helpful to compare with others *2020-02-14* I’m working on a 4 mm distal stone right now. Luckily my pain is low and my odds are good. Awesome to be able to compare my situation to others. Too bad the app can’t tell me WHEN the stone will pass. **Developer response:** Dontarius - glad to hear your situation seems favorable. Stone Pass is not equipped with a crystal ball. Smaller, more distal stones do pass faster but it is almost impossible to predict when that will happen. Stone Pass is intended to provide a general picture of how your stone compares to others with known outcomes. It is hoped that this information can guide expectations and improve communication with your care provider. An experienced urologist or stone specialist can give an individual assessment of your prospects based on your previous stone and medical history and will review of your imaging where they may look for features like the degree of obstruction (hydronephrosis), inflammation around the stone, and other details which couldn’t (and shouldn’t) be captured by an app. Good luck for prompt, painless, passage. Stone Pass is yours for future stones (which we hope you won’t have). ### 5/5 — Just What I Needed *2020-02-13* Thank you for creating this App for Kidney Stone patients! This is exactly what I need when I want information about my chances of stone passage. I have been a patient with a history of kidney stones for many years and always one of my first question is “what are the chances my stone will pass”. The comparisons are done quickly based on your individual answers and are visually easy to understand. Your App compares me to others with similar experiences related to size, location and pain level. I was reassured to see this was based on data from a large population of Kidney Stone patients. Lastly, included in the App, is very helpful information about kidney stones in general and once again explained in easy to understand information. This is a great App for one stop information in an episode of acute kidney stone care. There is nothing like it and, as I unfortunately will likely have the need, I will use it again and be sure to tell others. TooManyStones ## Frequently asked questions about Stone Pass ### What is Stone Pass? Stone Pass is a free health app designed to help individuals make informed decisions about kidney stone treatment. It uses real patient data to compare your stone's characteristics and pain level with others, providing insights into passing rates and treatment outcomes. ### How does Stone Pass help with kidney stones? By entering details about your kidney stone's size, location, and pain intensity, Stone Pass shows you how your situation compares to thousands of other patients. This data can help you understand potential outcomes and discuss treatment options more effectively with your doctor. ### Is Stone Pass free to use? Yes, Stone Pass is completely free to download and use. It does not have any in-app purchases or advertisements, making it an accessible resource for anyone dealing with kidney stones. ### What kind of data does Stone Pass use? The app utilizes anonymized outcome data from over 1,600 patients, reported monthly to the Joint Commission for Kidney Stone Disease certification. It also integrates the PROMIS® Pain Intensity scale for a standardized pain assessment. ### What devices does Stone Pass support? Stone Pass is available for iPhone and iPod devices. It was last updated to version 1.1 on February 21, 2020. ### Who developed Stone Pass? Stone Pass was developed by Dr. Andrew Portis, a board-certified urologist specializing in stone disease since 2000. He has extensive experience caring for patients with kidney stones. ### What is the age rating for Stone Pass? Stone Pass has an age rating of 12+, making it suitable for teenagers and adults. The app focuses on providing medical information and decision support for a serious health condition. ### How often is Stone Pass updated? The app was initially released on February 13, 2020, and its latest version, 1.1, was released on February 21, 2020. While updates may not be frequent, the core data it relies on is updated monthly. ## Version history (last 2 releases) ### 1.1 — 2020-02-21 Minor bug fixes ### 1.0 — 2020-02-13 No release notes. ## Related topics [kidney stones](https://appshunter.io/ios/topics/kidney-stones) --- *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 2026-07-05.*