# TDF Calc vs ASCO Guidelines

The clearest difference is review sentiment: TDF Calc at 100% against ASCO Guidelines's 57%. TDF Calc also leads on rating (5.0 vs 4.8). ASCO Guidelines's advantage is update cadence (every 5 months vs every 67 months) and ratings volume (261 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

TDF Calc holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ASCO Guidelines has 261 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of TDF Calc's written reviews are positive against 57% of ASCO Guidelines's.

TDF Calc ships an update every 67 months, ASCO Guidelines every 5 months. The most recent releases landed on October 14, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | TDF Calc | ASCO Guidelines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tdf-calc/id312749340/reviews)** | [4.8 (261 ratings)](https://appshunter.io/ios/app/asco-guidelines/id1238827183/reviews) |
| Number of ratings | 1 | **261** |
| Positive reviews | **100.0% of reviews** | 57.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 67 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 2 MB | 411 MB |
| Requires iOS | 13.2 | **10.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Eye Physics](https://appshunter.io/developer/312749343) | [American Society of Clinical Oncology](https://appshunter.io/developer/1513043539) |

## What reviewers say

### TDF Calc

[App page](https://appshunter.io/ios/app/tdf-calc/id312749340)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### ASCO Guidelines

[App page](https://appshunter.io/ios/app/asco-guidelines/id1238827183)

Access comprehensive cancer care guidelines and interactive tools to inform treatment decisions. This app supports healthcare providers, patients, and caregivers in implementing recommended cancer care options for various cancer types, aiming to improve the quality of care.

**Highlights:** Guideline recommendations for cancer care, Interactive treatment decision tools, Supports healthcare providers, Informs patients and caregivers, Covers various cancer types, Regularly updated content

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TDF Calc free?

TDF Calc is free to download, with no in-app purchases.

### Is ASCO Guidelines free?

ASCO Guidelines is free to download, with no in-app purchases.

### Which has better reviews, TDF Calc or ASCO Guidelines?

TDF Calc is rated higher. TDF Calc averages 5.0 out of 5 from 1 ratings, while ASCO Guidelines averages 4.8 from 261 ratings.

### Do TDF Calc or ASCO Guidelines have ads?

Neither TDF Calc nor ASCO Guidelines shows ads.

### Which is updated more often, TDF Calc or ASCO Guidelines?

TDF Calc ships an update every 67 months, and ASCO Guidelines every 5 months. Most recently, TDF Calc was updated on October 14, 2026 and ASCO Guidelines on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*