# LQCalc vs CTCAE 6 Pro

The clearest difference is price: CTCAE 6 Pro at Free against LQCalc's $0.99. CTCAE 6 Pro also leads on update cadence (every 3 weeks vs every 10 months). LQCalc's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

CTCAE 6 Pro is free to download; LQCalc costs $0.99 up front. CTCAE 6 Pro sells 2 in-app purchases, starting at $1.99 per month. LQCalc asks for nothing beyond the download.

LQCalc ships an update every 10 months, CTCAE 6 Pro every 3 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | LQCalc | CTCAE 6 Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (10 ratings)](https://appshunter.io/ios/app/ctcae-6-pro/id1625560237/reviews)** |
| Number of ratings | — | **10** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 0 MB | 87 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [RADLab, K.K.](https://appshunter.io/developer/1555036017) | [Koichiro Watanabe](https://appshunter.io/developer/1077985400) |

## What reviewers say

### LQCalc

[App page](https://appshunter.io/ios/app/lqcalc/id1555260645)

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

**In-app purchases:** none


### CTCAE 6 Pro

[App page](https://appshunter.io/ios/app/ctcae-6-pro/id1625560237)

This app provides easy access to CTCAE 6.0 content, allowing users to bookmark adverse events, search for keywords, and organize notes. It offers features for version comparison, data export, and timeline management for premium subscribers.

**Highlights:** Quick CTCAE 6.0 content access, Unlimited bookmarking of adverse events, Keyword search with highlighting, Local data storage for privacy, Version comparison (5.0 vs 6.0), Smart notes and chronological organization, Spreadsheet to custom list app conversion

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan – Monthly | $1.99 | per month |
| Premium Plan – Annual | $9.99 | per year |


## Frequently asked questions

### Is LQCalc free?

LQCalc costs $0.99, with no in-app purchases.

### Is CTCAE 6 Pro free?

CTCAE 6 Pro is free to download, with in-app purchases available.

### Do LQCalc or CTCAE 6 Pro have ads?

Neither LQCalc nor CTCAE 6 Pro shows ads.

### Which is updated more often, LQCalc or CTCAE 6 Pro?

LQCalc ships an update every 10 months, and CTCAE 6 Pro every 3 weeks. Most recently, LQCalc was updated on October 29, 2026 and CTCAE 6 Pro on October 30, 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.*