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.
Several of us are collaborating on a Rho Ophichus region image and are running tests now before a large imaging run. I am trying to use APP and one other is using PixInsight (PI). The third is deciding whether to use APP or PI. I really like APP and have been using it for everything but cannot even register a set of subs I have taken where PI is doing it. I need some help on what is wrong here.
There are 2 files attached: a screenshot of the sub loaded into APP and a screenshot of the sub loaded into PI with an STF Autostretch. The actual FITS file is available here:
https://drive.google.com/file/d/10e_J0OpNegWlm2q0re-D-TjCDVVPKXjc/view?usp=sharing
The only way I can see much of anything in the APP image viewer is to set the white point down to ~0.03 and then all the detail is washed out. Â
Am I doing something wrong?
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Hi,
Was curious about your image. I find that I can see the image by:
a) Setting the ST slider full left that the value shows as 0 - at this point the image display is showing as all white
b)Â With the ST slider still selected, giving a single press to the Right Arrow Key - at this point the ST display is still showing 0.
It seems the data is there but for some reason APP's viewer is not giving the data an appropriate stretch. I think by using the cursor control keys to set the ST value, I am setting a lower value than the least increment that APP currently is setting programatically : It takes me 5 Right Arrow key depressions to increase ST to a point that displays (rounds up?) to a value of 0.00001.
If I invoke Register Stars with APPs default settings, it detects 472 stars with c1.65 FWHM.
I can see this manual setting would be a pain if one wanted to page through dozens of images for viewing but I'm not sure it would prevent APP from actually processing / integrating a set of data files.
