48 hours to prepare
Join the groups, opt in and install your assigned apps.
DEV TO DEV. THE SAME WINDOW.
Your app.
Fifteen devs.
One window.
Your next launch starts with real people. Synchronized rounds to organize 12 testers, 14 days of closed testing, and feedback that helps improve your app.
Open source · Free during MVP · First cohort forming
EVERYONE STARTS TOGETHER
14testers per app
+2 headroomILLUSTRATIVE DEMO · NOT AN ACTIVE ROUND
Scroll to explore
12+
testers per app, minimum
14
days continuously opted in
100%
private feedback
Reciprocal participation. No buying testers. No requests for Play Store reviews.
01 / STEP INTO A ROUND
From the queue to the last day.
See every step unfold.
Explore an example round. Move between stages or play the sequence to understand what each developer does — and why the group needs to start together.
ROUND / EXAMPLE15devs in the round
ILLUSTRATIVE DEMO · NOT AN ACTIVE ROUND
BEFORE YOU START01 / 05
Bring your app. Join the queue.
Sign in with Google, complete your profile, and register the app you want tested. The queue brings together developers who need the same window.
- Register the name, package, opt-in link and Google Group.
- Priority goes to those who need the 12/14 rule, then arrival order.
- One active app per owner in a round. Helpers participate only as testers.
Prepare in Play Console: create a closed test and add your Google Group to the tester list.
Green dots illustrate check-ins on days 2 and 9. Drag to explore the window. Check-ins are self-reported; they do not verify use or Google Play opt-in.
This demonstration explains the planned platform flow. Sign-in, queue and rounds are still in development; the form below is a waitlist. No simulation data represents real participants.
RECIPROCITY IN PRACTICE
Your app at the center.
You testing the others.
A round runs on more than a number on a screen. It needs the same commitment on both sides: while other developers spend time on your app, you do the same for theirs.
The commitment ↘02 / The commitment
Before the invitation,
a clear agreement.
The round needs everyone to participate. Know what you are agreeing to before joining.
14 days in the same window
Stay opted in throughout the period. Use each app on at least 2 distinct days and record your check-ins.
3 helpful pieces of feedback
Write at least 80 characters for 3 apps. Feedback is private; we do not ask for Play Store reviews.
Headroom starts on day one: 15 owners → 14 testers per app → up to 2 dropouts while retaining 12. A mid-round replacement cannot rescue the current window: the new tester needs their own 14 continuous days.
03 / Questions
Your questions.
An open conversation.
Is this free?
Yes. Dozena is open source and free during the MVP. You test the other apps in your round and their developers test yours.
Does this guarantee production access?
No. Dozena organizes testing; Google makes the final decision. Check-ins are self-reported and do not verify Google Play opt-in or usage.
What happens if someone drops out?
With 15 owners, each app starts with 14 testers and can lose 2 while retaining 12. All must opt in before the testing window starts. A replacement joining later needs their own 14 continuous days; they cannot rescue the current window. With only 13 owners there is no dropout margin.
What do I need to participate?
An Android app with a Google Play closed testing opt-in link, a Google Group, and time to test the other apps. The full product is still being built; this page collects interest for the first round.
04 / FIRST ROUND
Your next step
could be together.
Leave your email to receive an invitation when the first group is ready. The full product is still in development.
Dozena organizes testing. Google always decides production access.
WAITLIST · FREE
Privacy
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