I wanted real long exposures on my phone, the kind with light trails and smooth water, without carrying a camera. The apps I tried used filters that faked the look. So I built LensOpen. It keeps the phone's shutter open for up to 60 seconds in Night mode. Day mode blends a burst of frames so water and clouds look smooth in daylight. It has manual ISO, focus, and white balance, plus RAW files for editing. I built it on a Pixel 9 and it's now in closed testing on Google Play. Google requires 12 testers for 14 days before an app goes public, and I'm still short. How to join: Ask to join the tester group: https://groups.google.com/g/lensopen-testers Wait for my approval. I check requests every day, and Google emails you once you're in. The next link won't work until then. Open https://play.google.com/apps/testing/com.seaton.lensopen on your phone and tap Become a tester. Install from the Play Store link on that page. Testers get Pro free. Tap Pro Upgrade and pick "Test card, always approves." You won't be charged. Building something yourself? Drop your link and I'll check it out.   submitted by   /u/Kaysyn [link]   [comments]