LQCalc vs CTCAE 5 Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LQCalc
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LQ model (LinearQuadraticModel)に基づき、放射線治療線量の換算計算を行います。HyperFractionation、再照射線量にも対応しています。 1回線量(Gy)、分割回数(Fr)、α/β値から BED(Biological Effective Dose; 生物学的等価線量) = nd(1 + d/[α/β]) EqD2(Gy等価線量換算値) = 1 回線量 2 Gy換算のnormalized total dose を計算します。 2種類のα/β値で同時計算が可能です。 本アプリの計算結果は、治療の妥当性や正確性等について保証するものではなく、 一切の責任を負い兼ねます。その結果から生じるいかなる損害についても責任を負いません。あらかじめご了承をお願いいたします。 参考文献: Fowler J. Int J Radiat Oncol Biol Phys 72 (5); 1532-1537, 2009
CTCAE 5 Pro
This app provides easy access to CTCAE documentation and supports local data storage for enhanced privacy. Premium features include version comparison, advanced note-taking, custom app creation from spreadsheets, and flexible data backup options.
- Streamlined CTCAE Document Access
- Local Data Storage
- Version Comparison Tool
- Advanced Notes Feature
- Custom App Creation
- Flexible Backup and Archiving
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CTCAE 5 Pro is designed to assist in the documentation, review, and reference of CTCAE-related information. This app is intended for informational support and is not designed for medical purposes such as diagnosis, clinical decision-making, or treatment recommendations. Users are responsible for verifying all information and making clinical decisions. ::::::::: Standard features (available to all users) :::::: - Streamlined CTCAE Document Access - Easily navigate CTCAE 5.0 documents using an intuitive interface. - Enhanced privacy with local data storage - protect your data by storing it locally instead of relying on cloud services, ensuring privacy and control. ::::::::: Premium Features (available with subscription) ::::::: - Version Comparison Tool - Easily compare different versions of CTCAE 5.0 and 4.03. - Advanced Notes feature - allows you to record CTCAEs in chronological order. You can also use hashtags and other features to efficiently organize and track notes for important information. - Custom App Creation Feature - Simply import a spreadsheet and convert it into a list app. No programming knowledge is required. - Flexible backup and archiving solution - easily back up and archive data in formats such as XLSX and CSV for versatility and accessibility. - More features are available in the Premium version. Note: With the Premium feature, a minimal number of files are automatically stored in a secure iCloud Drive to resume link information between files. This can be turned off based on user preference.
Screenshots
Verdict
The clearest difference is price: CTCAE 5 Pro at Free against LQCalc's $0.99. CTCAE 5 Pro also leads on update cadence (every 5 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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
CTCAE 5 Pro is free to download; LQCalc costs $0.99 up front. CTCAE 5 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 5 Pro every 5 weeks. Both last shipped on November 7, 2026.
| Parameter | LQCalc | CTCAE 5 Pro |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 4.9 (43 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 43 — better |
| Update frequency | Every 10 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 0 MB | 60 MB |
| Age rating | 17+ | 17+ |
| Developer | RADLab, K.K. | Koichiro Watanabe |
In-app purchases
LQCalc
No in-app purchases
CTCAE 5 Pro
- Monthly subscription7 Days trial$1.991 Month
- Annual subscription7 Days trial$9.991 Year









