June 24 2026 APP 2.0.0-beta46 has been released !
Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.
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.
I am using the trial version of APP to compare/contrast to using Siril. I have lights, darks, flats and bias frames all captured under clear skies this past weekend.Â
I made one pass through trying each feature on my own and experimenting with options. I was disappointed to find the resulting integrated image had a lot of color noise, something I have not been getting with Siril.Â
After reviewing this tutorial, I tried to tip at the end, letting APP do everything automatically. I still got the same kind of color noise. See screen shot below.Â
Surely this is user error but I haven't seen anything in the various tutorials that would explain what I am doing wrong.Â
Suggestions?
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That looks a lot like you didn't dither while taking the data, is that correct? Dithering will remove the streaky kind of noise you show here. Are you stretching similarly if you compare the results? I would assume it should look similar in Siril if no noise reduction was added.
No, no dithering as I am using Star Adventurer 2 without guiding. Guess I should have also mentioned what I am shooting with: Evostar 72ED, 0.85 focal reducer, Nikon D750 (unmodified). Doing some searches on dithering, it seems like the noise I am seeing out of APP is not uncommon without dithering. Appears that Siril is doing something that avoids the noise, just not sure what.Â
I don't know, that may be, but the noise pattern is so called "walking noise", which requires dithering. Can you show the integrations side by side?
