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.
Apologies to start, complete newbie. So stacked a set of Lights, darks, flats, dark frames from an OSC, using a Quadband filter. Did two separate stacks, one with Ha extracted, one with OIII extracted. Saved both as TIFF. Then loaded both TIFFs back in using Combine RGB. Won’t let me combine as the original stacked them as 2 different sizes 😕. Went into photoshop and resized one, tried again but because PS ‘resamples’ to the new size, all the stars are screwed up as it doesn’t align properly. What am I doing wrong or missing ?
No problem being a newbie and I wouldn't say you are as you're already into narrowband extraction etc. 😉 You do the OIII extraction and process that result, then save it as fits. Same for Ha. Then you restart APP (or clear the data) and load in Ha and OIII and label them as such (multi filter processing) and go to the normalize tab (5) and normalize the light against each other. Then you click on "save normalized frames" and then you can nicely combine them.
@vincent-mod brilliant many thanks 😊
If you run into an issue, happy to help. Good luck!
