Isodose RT
OAR dose limits and NTCP
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Verified organ-at-risk dose constraints with the source for every value, plus NTCP, TCP, EQD2, BED, and a plan checker. QUANTEC, HyTEC, TG-101, and PENTEC in one place.
Isodose RT puts verified organ-at-risk dose constraints in your hand at the point of plan review. It is built for radiation oncologists, medical physicists, dosimetrists, and trainees who need the right limit, for the right structure, with the source to back it up.
Every constraint is traced to its published primary. You see the exact structure the limit was validated on, for example whole lung minus GTV or brain minus GTV, along with the toxicity endpoint, the evidence grade, a verbatim source snippet, and a resolvable DOI. No value is shown as approved without a verified reference.
WHAT YOU GET
• A searchable library of organ-at-risk dose constraints across conventional, SBRT, and SRS, drawn from QUANTEC, HyTEC, TG-101, and other validated sources
• Pediatric tolerances from PENTEC, labelled so you always know when a limit is pediatric
• NTCP by the Lyman-Kutcher-Burman model and TCP, computed from published parameters, with every assumption shown: formula, alpha beta, dose basis, and the parameter source
• EQD2 and BED conversion
• A plan checker: enter your achieved doses and see pass or fail against the limits, with the modeled risk where a published curve exists for that organ and endpoint
• Delineation atlas figures and plain anatomy for each organ
• Favourites and full-text search across organ, synonym, and toxicity
WHY CLINICIANS TRUST IT
• Each limit names the structure it was validated on, so you are not guessing whole organ against organ minus target
• The calculators never hide the math
• Sources resolve to a DOI you can open and read
FREE AND PREMIUM
The free tier covers EQD2, BED, and the core adult conventional constraints. Premium opens the full library across SBRT and SRS, the NTCP and TCP calculators, the plan checker, unlimited favourites, and notifications when guidelines change.
IMPORTANT
Isodose RT is a reference aid, not a treatment planning system. Always verify against your institutional protocol before any clinical use.
Terms of Service: https://webofmedicine.ai/isodose-rt/terms
Privacy Policy: https://webofmedicine.ai/isodose-rt/privacy
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
The developer, Rishabh Kumar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Search History
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Rishabh Kumar
- Size
- 44 MB
- Category
- Medical
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment Information
- In-App Purchases
Yes
- Premium Lifetime USD 9.99
- Premium Annual USD 24.99
- Premium Monthly USD 2.99
- Copyright
- © 2026 Web of Medicine
