Join the Den beta

Try new versions of Den before they reach the App Store by joining the TestFlight beta.

Every Den release goes through TestFlight before it is published on the App Store. Beta testers use each version first, on their own devices and with their own libraries, and their feedback shapes what ships. The beta is limited to 100 testers so that every report gets read.

Spots are available

The beta has open spots. Install TestFlight, then open the invitation on the device where you want to test Den.

Join the Den beta on TestFlight

The link works on iPhone, iPad, and Mac. If TestFlight is not installed yet, the link offers to open it on the App Store first.

What to expect

• TestFlight is required. Beta builds install only through Apple’s TestFlight app. Den’s beta has the same system requirements as the App Store release.
• A beta build replaces the App Store version on that device. To go back, delete the beta and install Den from the App Store again. Your library stays in iCloud and returns with the app.
• Your library carries over. Beta builds use the same iCloud library as the App Store version, so your channels, bookmarks, and reading state are shared across both.
• Builds expire. Each beta build is valid for 90 days. TestFlight tells you when a newer build is available and when the current one is about to expire.
• Release notes come with each build. The What to Test notes in TestFlight describe what changed and what to look at.

How to send feedback

Feedback goes through TestFlight, which attaches the build number and device details so reports are easy to reproduce.

• On iPhone and iPad, take a screenshot while using Den and choose Share Beta Feedback, or open TestFlight, select Den, and tap Send Beta Feedback.
• On Mac, open TestFlight, select Den, and click Send Feedback.
• If Den crashes, TestFlight offers to send the crash report together with a note about what you were doing.

Describe what you did, what you expected, and what happened instead. Screenshots and the names of the channels involved help most.

Leaving the beta

Open TestFlight, select Den, and choose Stop Testing. Then install Den from the App Store to return to the release version. Leaving the beta frees a spot for the next tester.