# ThirdCatheter vs JRC総合プログラム

The clearest difference is review sentiment: ThirdCatheter at 100% against JRC総合プログラム's 0%. ThirdCatheter also leads on update cadence (every 4 days vs every 12 months). JRC総合プログラム's advantage is price (Free vs $1.99) and in-app purchases (none vs 3). On ads and device support there is nothing between them.

JRC総合プログラム is free to download; ThirdCatheter costs $1.99 up front. ThirdCatheter sells 3 in-app purchases, starting at $0.49 per month. JRC総合プログラム asks for nothing beyond the download.

ThirdCatheter ships an update every 4 days, JRC総合プログラム every 12 months. The most recent releases landed on September 23, 2026 and August 11, 2026 respectively.

## The numbers

| Metric | ThirdCatheter | JRC総合プログラム |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 12 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 26 MB | 36 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Masaaki Hirata](https://appshunter.io/developer/942972055) | [JAPAN RADIOLOGY CONGRESS](https://appshunter.io/developer/1458565899) |

## What reviewers say

### ThirdCatheter

[App page](https://appshunter.io/ios/app/thirdcatheter/id1209823996)

This medical reference tool calculates the theoretical minimum diameter for guiding catheters when using three devices. It offers device data pre-installed in new versions and advanced features like net search and gap imaging evaluation in the paid version. Users are advised to consult device manuals for strategy planning.

**Highlights:** Minimum diameter calculation for guiding catheters, Pre-installed device data, Net search and gap imaging evaluation (paid), Device information sharing via AirDrop, Device data editing with CatheterEditor, Calculates space needed for device function

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month Device Data Use | $0.49 | per month |
| 6 months Device Data Use | $1.99 | per 6 months |
| Fine-tune and save device info. | $1.99 | one-time |


### JRC総合プログラム

[App page](https://appshunter.io/ios/app/jrc/id1458565900)

This app provides access to information for the Japan Radiology Congress. Users can search for abstracts by various criteria, create personalized schedules, view live sessions, and access venue maps.

**Highlights:** Abstract search by author, affiliation, keyword, Personalized itinerary creation, Bookmark sessions, View ongoing sessions, Venue map access

**In-app purchases:** none


## Frequently asked questions

### Is ThirdCatheter free?

ThirdCatheter costs $1.99, and also offers in-app purchases.

### Is JRC総合プログラム free?

JRC総合プログラム is free to download, with no in-app purchases.

### Do ThirdCatheter or JRC総合プログラム have ads?

Neither ThirdCatheter nor JRC総合プログラム shows ads.

### Which is updated more often, ThirdCatheter or JRC総合プログラム?

ThirdCatheter ships an update every 4 days, and JRC総合プログラム every 12 months. Most recently, ThirdCatheter was updated on September 23, 2026 and JRC総合プログラム on August 11, 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.*