ICCR vs PTX Refer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ICCR
This reference tool provides information on internal contamination with radionuclides and their medical countermeasures. It estimates reference concentrations in urine based on hypothetical patient scenarios and standard biokinetic models. The app is designed for professionals interested in radioactive material contamination and therapy.
- Radionuclide and medical countermeasure reference information
- Hypothetical patient scenario assessments
- Reference concentration estimation in urine
- Save, edit, and share assessments
- Information on internal contamination and therapy
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The Internal Contamination Clinical Reference app is a reference tool to be used for educational and informational purposes only. The app provides information about internal contamination with a number of radionuclides and their medical countermeasure. The app estimates reference concentrations of radionuclides in urine using standard biokinetics models and assuming intakes equal to one Clinical Decision Guide (CDG) for each radionuclide based on hypothetical patient scenarios. The intended audience for the app is clinicians, health physicists, radiation safety officers, medical and public health laboratory scientists, or any other professional interested in internal contamination with radioactive materials and their medical therapy. Some basic understanding of concepts behind internal contamination and internal dosimetry are required to fully benefit from this application. The Internal Contamination Clinical Reference app features: * Reference information on a particular radionuclide or a medical countermeasure * Users can perform assessments based on hypothetical patient scenarios with each assessment projecting a reference concentration of radionuclides in urine based on user input * The assessment can be saved, edited and shared For more information, please visit http://www.cdc.gov/nceh/radiation/ or email rsbinfo@cdc.gov. This app was developed and produced by the Centers for Disease Control and Prevention http://www.cdc.gov/ and Oak Ridge Institute for Science and Education (ORISE) http://www.orau.gov/orise.htm through an interagency agreement with the U.S. Department of Energy (DOE). ORISE is managed by Oak Ridge Associated Universities under DOE contract number DE-AC05-06OR23100.
PTX Refer
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Get paid for referring your patients to PTX Therapy. You know and love PTX, and now you can share it with your patients. Send your personal referral link automatically via text or email with one click.
Screenshots
Verdict
The clearest difference is update cadence: PTX Refer at every 4 weeks against ICCR's every 33 months. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ICCR ships an update every 33 months, PTX Refer every 4 weeks. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.
| Parameter | ICCR | PTX Refer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 33 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.6 |
| Further details — not scored | ||
| Size | 37 MB | 27 MB |
| Age rating | 12+ | 9+ |
| Developer | ORAU | PTX Therapy, LLC |
In-app purchases
ICCR
No in-app purchases
PTX Refer
No in-app purchases









