List of astrometric solvers

Programs capable of Astrometric solving:

Engine Front-end/ installer License External access Blind solving 360° (off line) Cloud access to nova.astrometry.net MS-Windows (X86) Linux (X86) Linux (ARM) MacOS
Astrometry.net GPL3+ command-line nova.astrometry.net ✓(Win10 Linux subsystem)
,, All sky solver (inc Astrometry.net installer) GPL3+ COM interface - ✓(Linux emulator Cygwin) - - -
,, ANSVR (inc Astrometry.net installer) GPL3+ API interface - ✓(Linux emulator Cygwin) - - -
,, Astrometry.net API lite (inc. installer) GPL3+ API interface - ✓(Win10 Linux subsystem) - -
,, Astrotortilla (inc. Astrometry.net installer) GPL3+ - - ✓(Linux emulator Cygwin) - - -
,, Cloudmakers (inc. Astrometry.net installer) GPL3+ ? - - - -
,, StellarSolver GPL3+ - - ?
ASTAP MPL 2.0 command-line -
PlateSolve2 v2.28 Free to use command-line - - - - -
Regim Free to use - - - ?
Siril GPL3+ - - -
SIPS Free to use - - - - - -
Tetra3 MPL 2.0 Python3 class - -
XParallax viu Free software, CC BY-NC-ND 4.0 - - - - - -
Astrometrica Proprietary - - - - - -
Image Link TheSkyX Proprietary - - -
Observatory Proprietary - - - - -
PinPoint Proprietary DLL ✓using external programs ANSVR & Astrometry.net - - -
PixInsight Proprietary - - - -
PlateSolve3 Proprietary command-line - - - -
PRISM Pro Proprietary - - - -

The solvers Elbrus and Charon are obsolete and no longer developed.

edit