# EPTS Calculator — Kidney Waitinglist Score

> Calculates kidney transplant survival scores for allocation system priority. (iPhone/iPad app by Marc L. Melcher.)

- Source: https://appshunter.io/ios/app/epts-calculator/id977017619 (this page in markdown: same URL + `.md`)
- Developer: [Marc L. Melcher](https://appshunter.io/developer/371961192)
- Category: Medical, Education
- Price: Free
- Rating: 3.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.6 · 4 MB
- Languages: American English
- Released: 2015-03-23
- Data updated: 2026-08-22
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/epts-calculator/id977017619/reviews.md

## What is EPTS Calculator?

EPTS Calculator — Kidney Transplant Survival Scoring

Quickly calculate the Estimated Post-Transplant Survival (EPTS) score used in the U.S. kidney allocation system. Designed for transplant surgeons, nephrologists, coordinators, and researchers who need accurate, on-the-go EPTS percentile scoring.

WHAT IT DOES

The EPTS score estimates a kidney transplant candidate's expected post-transplant longevity using four OPTN-defined factors: patient age, diabetes status, prior solid organ transplants, and time on dialysis. Candidates scoring in the top 20% receive priority for the highest-longevity donor kidneys (KDPI ≤20%).

KEY FEATURES

• Instant EPTS Calculation — Adjust sliders and toggles, see your raw score and percentile update in real time with an animated gauge display

• KDPI ≤20% Eligibility Badge — Immediately see whether a candidate qualifies for longevity-matched kidney priority

• What-If Scenario Comparison — Model two sets of parameters side by side to counsel patients on how factors like starting dialysis or a diabetes diagnosis impact their score

• OPTN Formula Reference — Built-in info sheet with the complete EPTS formula, coefficient explanations, allocation policy summary, and source citations

• Clinician-Friendly Design — Clean, modern interface with haptic feedback, dark mode support, and frosted glass aesthetics designed for fast clinical workflows

FORMULA & DATA

The raw EPTS formula follows OPTN Policy 8.4.B with coefficients verified through 2025. The percentile mapping table is clearly labeled with its source year so you always know the data provenance. 

DISCLAIMER

This tool is for educational and clinical reference purposes only. It is not a substitute for clinical judgment. The percentile mapping table is updated annually by OPTN — always verify against the current official tables before making allocation decisions. This app is not affiliated with OPTN, UNOS, or SRTR.

## Key features

- Instant EPTS score calculation
- Real-time percentile updates
- KDPI ≤20% eligibility indicator
- Side-by-side scenario comparison
- Built-in OPTN formula reference
- Clinician-friendly interface with dark mode

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/epts-calculator/id977017619/reviews.md

### 3/5 — Epts

*2021-01-27*

This is a nice app to have when evaluating transplant patients, however, the slider for length of time on dialysis is very difficult to use accurately. Fix the slider and this will be a great app.

## Frequently asked questions about EPTS Calculator

### What is the EPTS Calculator?

EPTS Calculator is a free medical app designed to quickly calculate the Estimated Post-Transplant Survival (EPTS) score. This score is crucial for the U.S. kidney allocation system, helping to prioritize candidates for donor kidneys.

### Who is the EPTS Calculator for?

This app is intended for medical professionals such as transplant surgeons, nephrologists, and transplant coordinators who need to accurately assess kidney transplant candidate scores on the go.

### How does the EPTS Calculator work?

It uses four factors defined by the OPTN: patient age, diabetes status, prior solid organ transplants, and time on dialysis. Users adjust sliders and toggles to see the raw score and percentile update in real time.

### Does EPTS Calculator help with kidney priority?

Yes, the app provides an immediate 'KDPI ≤20% Eligibility Badge' to show if a candidate qualifies for priority for the highest-longevity donor kidneys.

### Can I compare different scenarios with EPTS Calculator?

Absolutely. The 'What-If Scenario Comparison' feature allows you to model two sets of parameters side by side, helping to illustrate how changes in factors like dialysis or diabetes diagnosis affect a candidate's score.

### Is the EPTS Calculator data up-to-date?

The raw EPTS formula follows OPTN Policy 8.4.B with coefficients verified through 2025. The percentile mapping table is updated annually by OPTN, and the app clearly labels its source year.

### What is the rating for EPTS Calculator?

EPTS Calculator has a rating of 3.0 stars based on 1 rating.

### Is EPTS Calculator available on multiple platforms?

The provided data does not specify platform availability beyond it being a mobile application. However, it was last updated on May 22, 2026, indicating ongoing development.

## Version history (last 3 releases)

### 2.00 — 2026-05-22

Modernized UI with frosted glass design and animated percentile gauge • KDPI ≤20% eligibility badge — instantly see longevity-matching priority status • What-If scenario comparison — side-by-side parameter modeling for patient counseling • Info sheet with full OPTN formula reference, allocation policy, and citations • Bug fixes: corrected risk tier display for edge-case scores • Haptic feedback on score changes • New app icon

### 1.10 — 2016-03-09

This update from Apple will improve the functionality of this app. No new features are included.

EPTS Mapping Table updated.

Bugs squashed.

### 1.00 — 2015-03-23

No release notes.

## More apps by Marc L. Melcher

- [MELD Calculator](https://appshunter.io/ios/app/meld-calculator/id445754652)
- [Transplant Stickers](https://appshunter.io/ios/app/transplant-stickers/id1311222535)
- [SUNTRAC4TXP](https://appshunter.io/ios/app/suntrac4txp/id1473852218)
- [UK DCD Risk Calculator](https://appshunter.io/ios/app/uk-dcd-risk-calculator/id1489366373)
- [EASE Score Calculator](https://appshunter.io/ios/app/ease-score-calculator/id1546162456)

All apps by Marc L. Melcher: https://appshunter.io/developer/371961192

## Related topics

[allosure](https://appshunter.io/ios/topics/allosure)

---

*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 2026-08-22.*