# CTC vs Dictionary Medical

The clearest difference is in-app purchases: Dictionary Medical at none against CTC's 1. Dictionary Medical also leads on update cadence (weekly vs every 2 months). CTC's advantage is price ($3.99 vs $4.99). On ads, device support and iOS requirement there is nothing between them.

CTC costs $3.99 and Dictionary Medical $4.99 up front. CTC sells 1 one-off in-app purchase. Dictionary Medical asks for nothing beyond the download.

CTC ships an update every 2 months, Dictionary Medical weekly. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CTC | Dictionary Medical |
| --- | --- | --- |
| Price | **$3.99** | $4.99 |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Paid | — |
| Size | 2 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Arpacore B.V.](https://appshunter.io/developer/1441928570) | [Nicolae Cozma](https://appshunter.io/developer/1714179318) |

## What reviewers say

### CTC

[App page](https://appshunter.io/ios/app/ctc-ae-plus/id349258523)

This medical reference app provides quick access to standardized adverse event criteria and grading scales for oncology research. It allows for efficient logging, tracking, and reporting of patient events, including performance scores and custom entries. Data is kept strictly on-device for privacy and compliance.

**Highlights:** CTCAE v4 and v5 reference, Performance score integration (Karnofsky, ECOG, Lansky), Advanced adverse event logger, Custom event creation, CSV data import/export, On-device data storage

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Adverse Event Logger | $3.99 | one-time |


### Dictionary Medical

[App page](https://appshunter.io/ios/app/dictionary-medical/id6476780698)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CTC free?

CTC costs $3.99, and also offers in-app purchases.

### Is Dictionary Medical free?

Dictionary Medical costs $4.99, with no in-app purchases.

### Do CTC or Dictionary Medical have ads?

Neither CTC nor Dictionary Medical shows ads.

### Which is updated more often, CTC or Dictionary Medical?

CTC ships an update every 2 months, and Dictionary Medical weekly. Most recently, CTC was updated on October 17, 2026 and Dictionary Medical on October 9, 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.*