CRSA vs Alea Randomisation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CRSA
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The Centre de Recherche Saint-Antoine (CRSA) has a very strong potential for both fundamental and translational biomedical research. The research work is carried out in collaboration with the clinical and biological departments of hospitals in eastern Paris. The CRSA is composed of 13 teams under the joint supervision of Inserm and Sorbonne University. This app from the CRSA introduces you: - The structure of the research centre - Its research teams - The latest publications - The seminars organized - The latest articles on social networks (Facebook, Twitter, Instagram and LinkedIn) and also allows you to book: meeting rooms - Equipment - Platforms Join us on this app to learn all about research at the CRSA!
Alea Randomisation
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If you are registered in the ALEA database, you can easily randomize with this app for all cancer studies you have access to. Randomization involves dividing the test group into two groups. one group receiving the real drug and another group receiving a placebo.
Screenshots
Verdict
CRSA and Alea Randomisation are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.
| Parameter | CRSA | Alea Randomisation |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 20 MB |
| Age rating | 17+ | 4+ |
| Developer | 2LA | Alea Clinical Services bv |
In-app purchases
CRSA
No in-app purchases
Alea Randomisation
No in-app purchases
Questions
Is CRSA free?
Is Alea Randomisation free?
Do CRSA or Alea Randomisation have ads?
Which is updated more often, CRSA or Alea Randomisation?
Other comparisons
