May 27 2026 APP 2.0.0-beta45 has been released !
Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.
Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options
Update on the 2.0.0 release & the full manual
We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.
Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.
Hello friends,
I'm a relative beginner, but have been using APP successfully for several months now. I'm trying to integrate a stack shot with OSC using default APP settings, with the exception of Bayer Drizzle (0.5 tophatkernel and 2x scale) selected. The process fails at the end of registration. The individual subframes look appropriate in the linear and calibrated form...but the l-c-registered frames have large swaths of artifact of some sort. I am using the latest beta, enjoying the star reduction tool! I'll attach a couple of pictures of the issue. Help!!
@canjosh Hi Joshua, do you get this when trying to integrate one panel subs (i.e. all images are of the same regeion in the sky) or with a mosaic?
@canjosh Hi Joshua, do you get this when trying to integrate one panel subs (i.e. all images are of the same regeion in the sky) or with a mosaic?
This is one panel—only other potentially important detail is that I have 30 second and 180 second subs that I’m trying to integrate. All taken in one night with an unchanged imaging train during the session. Thank you
What does the integration look like? Because this does look normal in the sense that, this is the kind of thing drizzling does with the data. But if the registration fails, that is something else probably. Could you try this with just one of the datasets to see if that works?
APP cannot get past the registration step. It cancels/aborts the integration. I have successfully drizzled other data before without this issue before. Yes, I will try to stack the different exposure times separately.
