2026-10-09 APP 2.0.0-beta48 has been released !
This is mainly a bug fix release for the reported bugs in beta47. In addition it has a significant User Interface performance improvement noticable when you need to process 1000s of images in APP.
2026-10-03 APP 2.0.0-beta47 has been released !
This is a very big release... many code optimizations/rewrites, many parts of APP are much faster and more precise, especially star analysis and registration are much faster ! Big mosaics will go much faster 🙂
And we introduce a new preview filter, which includes the new Adaptive Deep Sky Stretch and a General Levels Stretch, this has been long over due. The old preview filter (the panel on the right side to stretch and preview your data) has not been updated for a couple of years and it is a critical part of any APP session.
Adaptive Deep Sky Stretch or ADSS is a much more intuitive stretch algorithm. It is also color preserving (which is a great new addition in itself ! ) which means that the highlights are no longer bleached, color is maintained from the linear data while stretching. You can simply stretch your data using the sky background level and signal width sliders which work much easier and more intuitive. You no longer need to fiddle with the old complicated sliders with zoom buttons. All the zoom buttons for the sliders are made redundant. And you can enter slider values in the slider value fields yourself. I will make a youtube video in the coming days to explain and fully introduce ADSS. Once the video is ready, it will be highlighted on the forum.
RGB Combine upgrade !. The RGB Combine Tool has been rewritten mostly. The tool is faster and easier to use and most importantly, the Luminance slider to inject a luminance channel or channels into the RGB composite is now working correctly. It no longer bleaches the RGB colors. Combined with the new ADSS preview, you will get much better and easier great composites with great color! I will also explain this in a new youtube video.
Loyal APP user for a few years. I love this program, and I keep discovering helpful features. Thank you.
My request is to give the ability to export/import CSV data of the file list at the bottom, including all of the quality and registration data. When I generate the quality graph of frames I then want to select/de-select files based on a percentage of quality across multiple sessions. Once I'm done with all my stacking and processing the list is completely gone when I close the program. If I want to reprocess the same data, I have to load it all over again. Would be nice to export/import the file list and registration data so that I can import it later, but also so that I can do my own analysis of the frames in a spreadsheet more friendly to analyze externally and then report on the actual frames stacked for posting to Astrobin.
Hi Ashley @goateeap,
Thank you very much for your nice feedback 🙂 !
We are working on APP 2.0.0-stable which will provide complete save and load of whole projects including those metrics 😉 So there will be no need for a c.s.v. file I feel ?
Mabula
@mabula-admin This is wonderful news! That will save much time. If it is not too much trouble I would still like the CSV export option so that I can do my own statistical analysis in spreadsheet and then pick by hand the images to stack based on registration data. Not urgent. Please prioritize according to your needs.
Thank you so much for this wonderful software. I have enjoyed using it for three years now and watching it grow. Well done!
Ability to export / import will be a really big help - it is very tedious having to re-make the input list every time.
Can I just add to your answer that the export / import format should be machine / human readable. I would like to be able to export the list, adjust it, then import it with the updated info.
As for other posters, the ability to export/import stack list with quality stats would be incredibly useful. I've just gone back over 5 years of data to reprocess one target, and firstly let me say that APP handled multiple sessions/multiple filters without issues so that was great. You mention that the export/import function will be in 2.0.0-stable. I'm on 2.0.0-beta26 but I can't see any sign of this function unless I'm missing something. Any update on when the export/import file list function will be available?
Well, I hope that import makes in to a release soon! A few months back it was noted as a not that difficult to implement highly requested feature.
