TDF Calc vs Rad Onc Tables
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TDF Calc
This app calculates the biologically effective dose (BED) for radiation therapy fractionation regimens. It allows for comparisons of different treatment schedules and helps determine dose per fraction based on desired treatment duration.
- Linear-quadratic (LQ) method implementation
- Biologically effective dose (BED) calculation
- External beam radiation therapy (EBRT) fractionation
- Low dose rate (LDR) brachytherapy
- Permanent implant brachytherapy
- Dose per fraction calculation
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TDFCalc is an application which implements the linear-quadratic (LQ) method for comparing the biologically effective dose (BED) of external beam radiation therapy (EBRT) fractionation regimens as well as low dose rate (LDR) and permanent implant brachytherapy treatments. It calculates BED for a given alpha/beta ratio as a function of the dose per fraction and number of fractions for EBRT, and initial dose rate for brachytherapy. For a predetermined BED, the app solves the quadratic equation to calculate dose per fraction as a function of the number of fractions desired. This enables quick comparison of modified fractionation regimens (e.g. hypofractionation or compensating for missing treatment fractions) vs a conventional and/or originally intended regimen.
Rad Onc Tables
Access concise research summaries and direct links for radiation oncology. This tool aids professionals in quickly finding and referencing relevant studies.
- Quick research summaries
- Direct research links
- Radiation oncology focus
- Reference tool
- Summarized findings
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A quick reference tool for finding, summarizing, and linking directly to research related to radiation oncology.
Screenshots
Verdict
The clearest difference is price: TDF Calc at Free against Rad Onc Tables's $9.99. TDF Calc also leads on iOS requirement (13.2 vs 17.0). Rad Onc Tables's advantage is update cadence (every 2 weeks vs every 67 months) and ratings volume (23 vs 1). On rating, review sentiment, 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
TDF Calc is free to download; Rad Onc Tables costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for TDF Calc against 5.0 for Rad Onc Tables. That said, the two scores are not equally well evidenced: Rad Onc Tables has 23 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
TDF Calc ships an update every 67 months, Rad Onc Tables every 2 weeks. The most recent releases landed on October 31, 2026 and November 2, 2026 respectively.
| Parameter | TDF Calc | Rad Onc Tables |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 5.0 (1 ratings) — better | 5.0 (23 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 23 — better |
| Update frequency | Every 67 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #107 — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.2 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 49 MB |
| Age rating | 4+ | 12+ |
| Developer | Eye Physics | Matthew Culbert |
Customer experience
TDF Calc
Rad Onc Tables
In-app purchases
TDF Calc
No in-app purchases
Rad Onc Tables
No in-app purchases
Questions
Is TDF Calc free?
Is Rad Onc Tables free?
Which has better reviews, TDF Calc or Rad Onc Tables?
Do TDF Calc or Rad Onc Tables have ads?
Which is updated more often, TDF Calc or Rad Onc Tables?
Other comparisons
