# Surface Burn Calculator — Draw, calculate precision TBSA

> Medical app for precise burn area calculation and patient data management. (iPhone/iPad app by Jeffrey Holcombe.)

- Source: https://appshunter.io/ios/app/surface-burn-calculator/id1447784567 (this page in markdown: same URL + `.md`)
- Developer: [Jeffrey Holcombe](https://appshunter.io/developer/1437003533)
- Category: Medical, Utilities
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 12+
- Requires: iOS 9.0 · 113 MB
- Released: 2021-08-06
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/surface-burn-calculator/id1447784567/reviews.md

## What is Surface Burn Calculator?

Record burn regions using professional editing tools. Vector-based graphics for high-precision detail. Easy, fast and simple to use. Quick Calculator for immediate Parkland results. Enhanced Rule of Nines using BMI and Rule of Eights for infants under 10 kg and adults over 80 kg using the Rule of Fives.

The Total Surface Burn Area (TBSA) is calculated from the drawn regions using the Rule of Nines, Eights, Fives or Lund and Browder. Along with the patient’s weight, height, gender, and chart-type (adult, child, infant), the Parkland Formula is used to determine an accurate amount of fluids to give the patient. Additionally, the provided Abbreviated Burn Severity Index (ABSI) can then provide an estimated mortality rate. 

KEY FEATURES
Create, View, Sort, Search, Edit, and More - Unlike other calculation software, you can view and revise past records. Organize the chart list view by select fields or find results by customized title.

Quick, Efficient and Detailed Calculations - Edit quickly with simple inputs using Quick Calculate. Bypass patient measurement information to quickly draw burn regions and return to add patient details later.

Encrypted & Compliant - Patient charts are stored locally with high-level encryption.

Enhanced Rules - An available option in the application considers the latest medical studies to calculate more accurately based on BMI and body-type.

Professional Editing Tools - Use the basic Brush tool commonly seen in other software or take advantage of the Lasso tool to quickly draw the entire burn region in one motion!

Pan and Zoom! - Two-Finger-Pan, Touch-to-Pan, Pinch-to-Zoom, and more allow for precision results and faster burn region input.

Reverse-draw - Reverse side is drawn under the current view to allow the burn pattern to be matched from the anterior to the posterior.

Vector-based Graphics - Utilizing point-to-point Scalable Vector Graphics (SVG) stores the burn region as a digital value for: Better precision feedback / display, future-proofing as calculations and formulas change, and more.

Share Results - Charts are exportable using the native devices 'Share' feature. Subscribe or purchase individual 'Share Charts' items for full calculation details and advanced file-types such as PDF.

Tailored Preferences - Default opening a chart to Move mode to prevent accidental input, or default to Edit mode for faster input.

Custom Basis Values - Enter your weighted basis value that best suits your knowledge and expertise or facility guidelines. Available for adult and child/infant charts separately.

FAQs
Q. How do calculations work?
A. Anterior and Posterior body regions are divided into an average total of 35 different parts (hand, lower arm, upper arm, etc.). Each section is then combined into the respective region for display purposes (arm, leg) to give the total value for a more user-friendly view. The system then reduces and evaluates each collection of regions and determines the percentage of the clipped area that is filled-in. Each collection is then totaled and input into the Parkland Formula to determine the amount of fluids to provide.

Q. How are records stored securely?
A. Patient charts are stored locally with AES-256 using cipher block chaining (CBC) mode and a unique initialization vector (IV) which is never reused within a file, and then signed with a SHA-2 HMAC.

All data collected is encrypted and used to provide recommendations. All information displayed should be verified and only used with the assistance or advice of a trained licensed professional. Sharing charts is not secure, and is subject to the encryption mechanisms used in the transfer to the selected 3rd-party application(s).

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Professional editing tools for burn region drawing
- Vector-based graphics for high precision
- Quick Calculator for immediate Parkland results
- Enhanced Rule of Nines with BMI and Rule of Eights
- Encrypted and compliant patient record storage
- Exportable charts for sharing results


## Frequently asked questions about Surface Burn Calculator

### How do calculations work in Surface Burn Calculator?

Anterior and posterior body regions are divided into approximately 35 parts. These are combined into larger regions (like arms and legs) to display total values for a user-friendly view. The system then evaluates these collections of regions to determine the percentage of the clipped area.

### What calculation methods does Surface Burn Calculator use?

Surface Burn Calculator uses the Rule of Nines, Rule of Eights, Rule of Fives, and Lund and Browder methods for TBSA calculation. It also incorporates the Parkland Formula for fluid resuscitation and the Abbreviated Burn Severity Index (ABSI) for mortality estimation.

### Can I edit past patient records in Surface Burn Calculator?

Yes, unlike some other calculation software, you can view and revise past records. Charts can be organized by selected fields or found by customized titles, allowing for comprehensive record management.

### How is patient data secured in Surface Burn Calculator?

Patient charts are stored locally on the device with high-level encryption, ensuring privacy and compliance. This local storage approach enhances security for sensitive medical information.

### Does Surface Burn Calculator support different age groups?

Yes, the app supports calculations for adults, children, and infants. It features enhanced rules that consider BMI and body-type for more accurate calculations across different patient demographics.

### How frequently is Surface Burn Calculator updated?

The latest version, 2.6.3, was released on April 28, 2022. Updates typically focus on improving accuracy, adding features, and ensuring compliance with the latest medical studies and guidelines.

### What devices is Surface Burn Calculator compatible with?

Surface Burn Calculator is available for iPhone, iPad, and iPod devices. It is designed to function on Apple's mobile operating systems.

### What is the age rating for Surface Burn Calculator?

Surface Burn Calculator has an age rating of 12+. This indicates it is suitable for users aged 12 and older.

## Version history (last 5 releases)

### 2.6.3 — 2022-04-28

Share charts with full detail using PDF output. 
Pay-per-share option for less than 10¢ USD each, or unlimited shares with a subscription. 
Once shared, unlimited re-shares until the chart is modified to ensure successful exports. 
Basic sharing with limited data and resolution for all pre-existing / legacy users.
Region Zoom - Tapping a calculation item in the detailed list view will now load the chart view to that region.
Flip Chart - Now uses the selected chart region set from selecting a calculation item or the new 'Zone' button in the chart view toolbar to flip to the same region on the reverse side.
Re-apply translated text to purchase dialogs.
Additional error handling surrounding in-app purchases. 
Eliminated unnecessary updates when opening and scrolling charts. 
Fixed bug where charts were not sorted on app load.
Resolved a bug where ABSI parameters for inhalation and full thickness burns were not being loaded correctly.

### 2.5.1 — 2022-03-22

Apple Login w/ data sync between devices.
Added ABSI with estimated mortality. 
Significant performance improvements loading / drawing pages and components.
Enable individual In-App Purchase calculation item for Lund and Browder estimations.
Replaced underlying search and sort OTS component with an OTB+ solution; resolving a critical bug on start-up.
Reduced reactive timing by a factor of 10 to improve chart loading / update time.
Updated In-app Purchase page with dynamic rendering for all platforms.
Critical bug for some users - to use existing / working code for translating text on all date formatting.
Modified wire up code for OTS IAP plugin to latest recommended workflow. 
Refactor of caching surrounding in-app purchases and authentication server status (reporting IAP product IDs).
IAP Restore Purchases button
Refactor of Quick Calculate to include ABSI calculations.

### 2.3.1 — 2022-02-27

(Critical) Bug fixes to prevent a crash in some cultures when consuming the local date / time zone for the default Chart title.
Bug fix where disabling Enhanced Rules would not re-load the ruleset.
Bug fix for More Menu where it would remain open in some cases.
Bug fix for More Menu to display in the proper location when changing orientation.
Re-introduced enhanced loading indicators for all devices.

Various code-migration efforts to better segment and test functionality.

### 2.3.0 — 2022-02-21

Open Feedback promotional changes
Feedback page linked to company Friil.co
In-app Purchase (IAP) bug fixes for purchasing and integration (API)
Enable / Disable ad loading faster
Simplified orientation detection
About page changed to respective store listing

### 2.2.10 — 2022-01-02

Patch fix to properly undo the last drawn path

## Apps similar to Surface Burn Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [All In One Ophthalmology](https://appshunter.io/ios/app/all-in-one-ophthalmology/id1344628072) | 4.6 (11) | $0.99 | Medical |
| [Synt®](https://appshunter.io/ios/app/synt/id1447069939) | 5.0 (13) | Free | Medical |
| [Drip Infusion - IV Rate Calc](https://appshunter.io/ios/app/drip-infusion-iv-rate-calc/id358073020) | 2.4 (8) | $1.99 | Medical |
| [Drip Helper - IV Rate Calc](https://appshunter.io/ios/app/drip-helper-iv-rate-calc/id1576102500) | 5.0 (3) | Free | Medical |
| [ECG - Corrected QT Interval](https://appshunter.io/ios/app/ecg-corrected-qt-interval/id1575723032) | — | Free | Medical |
| [PICU Calculator](https://appshunter.io/ios/app/picu-calculator/id404431842) | 4.5 (2) | $5.99 | Medical |

---

*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 2026-06-10.*