PalpationMapp vs eVAS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PalpationMapp
This app offers a visual guide to identifying and palpating 91 essential muscles. It provides clear instructions and overlay images to help users deepen their understanding of the musculoskeletal system and master palpation skills.
- 91 essential muscles in HD video
- 200 overlay anatomy images
- Muscle identification and engagement
- Bony landmark identification
- Differentiate muscles from adjacent structures
- Menu-guided navigation
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PalpationMapp is an easy-to-navigate visual guide to identifying and palpating 91 essential muscles. Acclaimed author of Trail Guide to the Body, Andrew Biel provides clear instructions that will build your confidence as you practice palpating with precision. With PalpationMapp, students and practitioners in the manual therapy professionals deepen their understanding of the musculoskeletal system and master their palpation skills. Features of this app include: • 91 essential muscles presented in a HD quality video format • 200 beautiful overlay images from the Trail Guide to the Body textbook depict underlying anatomy during palpation • Check-it box, for nearly every muscle, which helps the user confirm the location of the muscle being palpated This app teaches the user to: • Identify key bony landmarks • Identify and engage muscles • Palpate and get a sense of fiber direction • Differentiate muscles from adjacent structures • Shorten and lengthen muscles Menu-guided navigation to individual palpation clips within the app is a breeze. PalpationMapp is a convenient, at-your-fingertips educational tool that will take you further on the path to mastery of palpation.
eVAS
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The Electronic Visual Analog Scale (eVAS) is an ad-free iPad app that allows users to digitally track visual analog scores using 10 cm slider channels with various customizations and export saved data in tables. It can be used as a pain scale tracker or for any other application that requires user input tracking on a 10 cm visual analog scale.* eVAS was designed and developed in 2023 by Ryan Tennant in partnership with the Biomechanics and Injury Prevention Lab at the University of Waterloo. Funding for this app was provided through the Centre of Research Expertise for the Prevention of Musculoskeletal Disorders (CRE-MSD) that receives funding through a grant provided by the Ontario Ministry of Labour, Immigration, Training and Skills Development. We provide our users with various customizations unique to eVAS. Users can customize their collection settings by: - choosing one of three default images or uploading an image from their device to be stored locally, - specifying a session identification label, - setting left and right anchor label text, - selecting among 1-22 collection channels to record visual analog scores, - setting a recurring alert reminder within the app, and - exporting their data in .CSV or .XLSX format via e-mail or other file-sharing methods available on their device. Find the complete instructions and other information on using eVAS under the info icon on the Collection Settings screen. *The slider length is 10 cm — output scores range from 0 to 1 for each channel with a precision of 6 digits. The 10 cm visual analog scale and threshold values for clinically relevant pain have been previously evaluated in clinical research applications with humans, such as detecting clinically relevant low back pain [1,2]. The design of eVAS employs the 10 cm scale that has been validated in peer-reviewed literature [1-5]. Its design is further informed by current research validating the reliability and accuracy of clinically relevant pain using visual analog scales through touchscreen devices [3-5]. References: [1] https://pubmed.ncbi.nlm.nih.gov/24384659/ [2] https://pubmed.ncbi.nlm.nih.gov/12592542/ [3] https://pubmed.ncbi.nlm.nih.gov/26769149/ [4] https://pubmed.ncbi.nlm.nih.gov/30211382/ [5] https://pubmed.ncbi.nlm.nih.gov/12237213/ Medical Advice Disclaimer: DISCLAIMER: EVAS DOES NOT PROVIDE MEDICAL ADVICE The Contents of the App is for data collection and informational purposes only. No material on this app is intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen or making any medical decisions, and never disregard professional medical advice or delay in seeking it because of your use of eVAS.
Screenshots
Verdict
The clearest difference is price: eVAS at Free against PalpationMapp's $14.99. eVAS also leads on update cadence (every 3 days vs every 17 months). PalpationMapp's advantage is chart position (#26 vs unranked) and device support (3 vs 1). On ads, in-app purchases and iOS requirement 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
eVAS is free to download; PalpationMapp costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PalpationMapp ships an update every 17 months, eVAS every 3 days. The most recent releases landed on October 14, 2026 and September 27, 2026 respectively.
| Parameter | PalpationMapp | eVAS |
|---|---|---|
| Price | $14.99 | Free — better |
| Rating | 4.6 (83 ratings) — better | — |
| Positive reviews | 67.2% of reviews | — |
| Number of ratings | 83 — better | — |
| Update frequency | Every 17 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #26 — better | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 541 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Books of Discovery | Ryan Tennant |
Bugs and requests
PalpationMapp
Reported bugs
5 issues- App crashes on launch or navigation
- Videos do not play
- Functionality broken after iOS updates (especially iOS 11, 13)
- No sound in videos (historical issue)
- App not available in Canadian App Store
Requested features
4 requests- Content for teaching trigger points
- Update for current iOS versions
- Add sound to videos (historical)
- Make all book videos available in the app
eVAS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PalpationMapp
No in-app purchases
eVAS
No in-app purchases









