Comparison

BED LQ Calc vs Isodose RT

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BED LQ Calc

This app helps radiation therapy professionals perform complex radiobiological calculations using the Linear-Quadratic (LQ) model. It supports various fractionation schemes, BED, and EQD2 conversions for accurate treatment planning and dose optimization.

Highlights
  • LQ Model Calculations
  • BED & EQD2 Calculations
  • Multiple Treatment Courses
  • Flexible α/β Ratio Settings
  • Intuitive Clinical Interface
  • Precise Numerical Inputs
Features
Read full description

BED & LQ Model Calculator for Radiotherapy Dose and Fraction Calculation A comprehensive and user-friendly calculator designed for radiation therapy professionals to perform essential radiobiological calculations using the Linear-Quadratic (LQ) model. Key Features: LQ Model Calculations: Calculate biological equivalent doses for different fractionation schemes Support for multiple treatment courses (C1, C2, C3) Flexible α/β ratio settings (3 Gy and 10 Gy presets) Dose per fraction and total dose calculations BED & EQD2 Calculations: Biologically Effective Dose (BED) calculations Equivalent Dose in 2 Gy fractions (EQD2) conversions Support for both early-responding (α/β = 10 Gy) and late-responding tissues (α/β = 3 Gy) Automatic summation across multiple treatment courses Professional Tools: Clean, intuitive interface optimized for clinical use Individual course clearing options Quick "Clear All" functionality Precise numerical inputs with validation Instant calculations with professional accuracy Perfect for: Radiation oncologists Medical physicists Radiation therapy students Healthcare professionals in radiotherapy This calculator streamlines complex radiobiological calculations, helping healthcare professionals make informed decisions about radiation treatment planning and dose optimization. Whether you're comparing different fractionation schedules or calculating cumulative biological effects, this tool provides reliable, fast calculations essential for modern radiation therapy practice. Developed by Görkem Güngör - Istanbul Note: This tool is intended for educational and professional reference purposes. Always verify calculations and consult with qualified medical professionals for treatment decisions.

About

Isodose RT

Features
Read full description

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

Screenshots

BED LQ Calc4 screens
Isodose RT4 screens

Verdict

The call

The clearest difference is iOS requirement: Isodose RT at 15.1 against BED LQ Calc's 18.0. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
BED LQ Calc versus Isodose RT: the parameters behind the verdict, then further details
ParameterBED LQ CalcIsodose RT
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyDaily—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size1 MB42 MB
Age rating4+17+
DeveloperGorkem GungorRishabh Kumar

In-app purchases

None

BED LQ Calc

No in-app purchases

None

Isodose RT

No in-app purchases

Questions

Is BED LQ Calc free?
BED LQ Calc is free to download, with no in-app purchases.
Is Isodose RT free?
Isodose RT is free to download, with no in-app purchases.
Do BED LQ Calc or Isodose RT have ads?
Neither BED LQ Calc nor Isodose RT shows ads.

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