Days OnSite - CRA Tracker 12+

Visits & Performance Tracker

Binomial Studio

    • 3.0 • 2 Ratings
    • Free
    • Offers In-App Purchases



The best app to keep track of your monitoring visits, research sites and study protocols. Created and maintained by an indie developer who is also a CRA on the field.

Days OnSite: the perfect companion for a Clinical Research Associate.

+ Your Visits in One Place
Keep track of your visits in one place. Create recurrent visits all at once.

+ Visit Details at a Glance
Is the visit confirmed? Is it a half or full-day visit? Did you send the report? Keep all the details at hand.

+ Scheduling at Ease
Plan your visits schedule from pre-study to close out and stay on top of your days on site. View a comprehensive list of previous and next visits for all your sites.

+ Never Miss a Deadline
Stay on top of deadlines and due dates. Based on your own metrics, you will know when a letter or report is due. Check your pending tasks with a list of pending confirmation and follow up letters as well as reports to be submitted.

+ Sites in One Place
All your sites information in one place. Same site different study protocols? Fear not. View the list of protocols each site is participating in.

+ Reaching Monthly Metrics
Days OnSite displays how many days on site you are scheduling every month. Find out if you are over or under-booked for your next months and take actions accordingly.

+ Conquering Time Zones
Your sites are in different time zones? We’ve got you covered. Current time at site is displayed.

+ Apple Maps Integration
What is the fastest way to get to your site? Any restaurants nearby? Days OnSite is fully integrated with Apple Maps.

+ Work-related Contacts
All your work-related contacts are in a new group separated from the rest. Days OnSite is fully integrated with your Contacts.

+ Be Part of the Future
You have a voice on new features and updates. Be part of the development and play a key role in bringing the features that you want to the app.

+ Support a Fellow Colleague
Created and maintained by an indie developer who is also a CRA on the field. An app built by a CRA for CRAs all over the world.

+ Your Information is Yours
We respect your privacy. We do not access your data and never will. Find more in our Privacy Policy.

Several months in the making, lots of coffee and love while travelling from one research site to another.

Terms of use:
Privacy Policy:

Please send your feedback to

What’s New

Version 1.0.11

We're listening to your feedback and working hard to continue making this app even better.

In this version:
- Support for iOS 16 and the latest iPad and iPhone devices
- Fixed bugs
- Improved performance.

Send us your questions at
Your feedback is always welcome and considered for the next release.

If you're feeling generous with your time, please support us by leaving a review in the App Store. We'd also appreciate if you recommend Days OnSite to your colleagues. As an independent developer it means the world to us.

Ratings and Reviews

3.0 out of 5
2 Ratings

2 Ratings

_upset_customer ,

Unknown charges

You tried to take money out of my account and I don’t have a subscription!

Developer Response ,

Hi there,

We are sorry you had that experience with the app.
Thank you for taking the time to let us know. Please note that your are on control of your subscriptions, the app will ask you if you want to subscribe to the premium features but the app is free to use.

To access your subscription on your iPhone or iPad:
1. Open the Settings app.
2. Tap your name.
3. Tap Subscriptions.

If you feel this is not an issue anymore changing the rating is always welcomed. Let us know if you have any comments/suggestions at contact@dayson­

App Privacy

The developer, Binomial Studio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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