EQD Calculator vs ARIA CORE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EQD Calculator
This app assists radiation oncology professionals in calculating Biologically Effective Dose (BED) and Equivalent Dose (EQD) for radiotherapy. It offers quick and easy results, allowing for adjustments to treatment schedules and estimation of treatment effects.
- Calculate BED and EQD
- Adjust radiotherapy schedules
- Estimate treatment effects
- View alpha/beta ratio and tolerance dose tables
- Organize with URL scheme
Read full descriptionHide full description
In practice of radiotherapy, do you often want to check easily the BED and EQD? We considered that it is wonderful to calculate them with iPhone, iPod and iPad that we carry always. That’s why we designed new App “EQD calculator”. Considering use in practice, primary concept of design is easy to use and quick to get the results. In practice, we think that EQD is more useful than directly use of BED, so we named this App as “EQD Calculator”. Please try EQD calculator! We have released “TDF Calculator” that is capable to calculate the TDF factor defined by Orton et al. Please, try also “TDF Calculator”. See “View More by This Developer” appeared above. #Strong points - This App is designed for the professionals working in the field of Radiation Oncology. - Although there are a lot of numbers on the screen, this App is designed to look like a table calculation, therefore you can understand easily the indication of each values. - You can refer alpha/beta ratio and tolerance dose tables in this App. - You can organize this App with URL scheme (jp.37.EQDcalculator://) in other App such as launchers. #Main features - This App calculates Biologically Effective Dose (BED) defined by Linear-Quadratic (LQ) model. Additionally, this App can calculate Equivalent Dose (EQD) in indicating fraction dose simultaneously. - This App can also calculate the fraction dose which is equivalent in indicating fractionation times. Therefore, when you need to change the schedule of radiotherapy, you can keep the influences of change in the treatment to a minimum, estimating with this App. - This App can calculate these values together in three different conditions stated by three parameters (fraction dose or total dose, number of fractions and alpha/beta ratio), and summation of them automatically. - Setting either a total dose or a fraction dose, related fraction dose or total dose is calculated respectively, depending on the fractionation times. - This App (from ver.1.2.0) is just designed for iPhone and iPad with iOS8. #Reference 1. J.F. Fowler, Review: Total doses in fractionated radiotherapy—Implications of new radiobiological data. Int J Radiat Oncol Biol Relat Studi Phys Chem Med 1984;46:103–120. 2. B. Emami, J. Lyman, A. Brown, et.al. Tolerance of normal tissue to therapeutic irradiation. Int J Radiat Oncol Biol Phys 1991;21:109–122. 3. S.M. Bentzen, M.C. Joiner. The linear-quadratic approach in clinical practice. In M.C. Joiner, A. van der Kogel eds. Basic Clinical Radiobiology. 4 ed. London: Hodder Education; 2009: 120-134. #Disclaimer - Please check carefully End User License Agreement (EULA) before using the App. - Additionally, you may not use this App unless you agree to terms included below. - You agree to assume full and sole responsibility for any use of this App. - We are not responsible for any damages or injury, including but not limited to special or consequential damages, that result from your use of (or inability to use) this App, including any damages or injury caused by any failure of performance, error, omission, interruption, defect, delay in operation, computer virus, or other computer malfunction.
ARIA CORE
This mobile application provides healthcare professionals with essential features for managing oncology care on the go. It allows for personalized patient data access, streamlined clinical management, and flexible mobility, enabling timely decisions and efficient workflows from any location.
- Personalized patient data access
- Streamlined clinical management
- Appointment and task scheduling
- Mobile document and note approvals
- Oncology Information System access
- Efficient workflow management
Read full descriptionHide full description
ARIA CORE Mobile brings the essential features of the ARIA CORE Oncology Management System right to your fingertips, tailored for healthcare professionals. As a clinician constantly on the move, you need tools that keep pace with your dynamic workflow. ARIA CORE Mobile is your gateway to managing oncology care more efficiently, anytime, anywhere. Key Benefits Personalized Patient Care: View detailed patient data on the go, providing insights exactly when you need them. Access and share vital information from your smartphone or tablet and make timely, informed decisions from any location. Streamlined Clinical Management: Schedule and manage appointments and tasks with ease directly from your mobile device. Handle workflows efficiently—from document approvals to note dictation—helping reduce bottlenecks in your busy schedule. Mobility and Flexibility: Break free from the constraints of a workstation. With ARIA CORE Mobile, care teams can access essential information from smartphones or tablets, respond to questions, and approve documents from anywhere. ARIA CORE Mobile is intended exclusively for healthcare professionals in a clinical setting. It enables users to schedule appointments, conveniently access detailed patient information, and stay productive and organized with task management tools that reduce bottlenecks through mobile document and note approvals. Mobile access to the Oncology Information System is designed to help clinicians spend less time documenting and more time with patients. Note: ARIA CORE Mobile requires your organization to have a valid license and to operate on the ARIA® Oncology Information System version 15.5 MR2 or higher. Please contact your Varian Sales representative for more information.
Screenshots
Verdict
The clearest difference is rating: ARIA CORE at 5.0 against EQD Calculator's 4.4. EQD Calculator's advantage is update cadence (every 3 weeks vs every 8 months) and iOS requirement (8.0 vs 16). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ARIA CORE holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 7 respectively.
EQD Calculator ships an update every 3 weeks, ARIA CORE every 8 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.
| Parameter | EQD Calculator | ARIA CORE |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (7 ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 7 | 7 |
| Update frequency | Every 3 weeks — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 16 |
| Further details — not scored | ||
| Size | 15 MB | 41 MB |
| Age rating | 17+ | 17+ |
| Developer | Hiroyuki KATOH | Varian Medical Systems, Inc. |
Customer experience
EQD Calculator
ARIA CORE
In-app purchases
EQD Calculator
No in-app purchases
ARIA CORE
No in-app purchases
Questions
Is EQD Calculator free?
Is ARIA CORE free?
Which has better reviews, EQD Calculator or ARIA CORE?
Do EQD Calculator or ARIA CORE have ads?
Which is updated more often, EQD Calculator or ARIA CORE?
Other comparisons















