The program is believed to run on Pocket PC 2003, WM 5.0 and WM6, including QVGA and VGA screens, as long as the device allows installation of VB runtimes.

Features:
- Ephemerides.
- Chart views from all planets.
- Data and visualizations of natural satellites.
- Eclipses and inner planet transits.
- Meteor shower data by month.
- Comet ephemerides.
- Minor planet ephemrides and orbit plots.
- Analemma.
- Twilight visualization.
- Sun, planet and star compass.
- Celestial object monitor (altitude and azimuth gauges).
- Minima of Algol schedule.
- Pleiades Chart.
- Space travel simulation.
- Online references, incl. a Local Star Chart.
- Solar System Model.
- and much more...

Note:
If your operating system language is other than English, you may need to change the decimal number separator in your regional setting from comma to point. To do so, please select Settings/System/Regional Settings/Number/Digit grouping symbol.

***** [Feb 17, 2009] by andre using htc diamond
The program performed very well on my old htc 9100, but at first refused to work on the diamond. I made the mistake of installing the vbruntime msvbppc.armv4.cab. This runtime gives errors while installing. Instead, use the link on the alfcen.com site with the correct runtime: 'runtime2005.xscale 2003 (4k) v4.20.cab', located at: http://www.alfcen.com/pocket/vbrun.html. This runtime worked for me, with a few problems: the start screen display is not optimised for the diamond, and sometimes I get an 'overflow' error. The error seems to do nothing serious, though. In all, the program still works very well.

***** [Jan 22, 2009] by John H - Indonesia using HTC P3600
Very good app. As non-astronomer I enjoy this program since my Wallaby days (ver 1.02) and now on Trinity. Today's Twilight and Sun Ephemerides are very helpful for moslems, as well as Moon's. I do enjoy various photos of the universe that Alfcen.com made available. Thank you Mr. Brenner.

* [Jan 3, 2009] by moi using htc hd
Does not work! Unfortunately. Installed the prg & the additional runtime package (when installing this i get error msg regarding missing dll from the cabfile) resulting this package does not work. Maybe the author could rewrite the program in a decent programming language and make us all happy.

* [Jan 3, 2009] by Davidbiz using Dell Dimension 600
Can't operate without VB software and everywhere I look for that, Microsoft says the page doesn't exist! Kinda hopeless!

** [Oct 30, 2008] by F.Lucht using MDA Vario III (german Telekom)
It's a pity... It seems to be a good software but after installation on my MDA VBario III (german Telekom) it says "teoyoukei is no valid executable file... start the program and try to open the file again..." why is everything so difficult ? What the hell is wrom with the guys from redmont ??? Anybody has a solution ?

* [May 10, 2008] by arcz using O2 XDAII
I cant seem to make it work on my O2 XDA ii (I already have the VB installed)

***** [Jul 10, 2006] by Bill using x51v
An AMAZING bit of software. On the way to work I look for unusually bright objects, then I find out what they are using this program. It makes the universe a little bit smaller.... And there are so many features I'm sure I still haven't seen them all...

* [Jun 12, 2006] by JimG using Cingular 8125 PPC (TI OMAP Processor)
Although the program installed fine on my device, this software looked very nice. When I changed the view Options within the software menu, however, the device lagged too much. I'm not sure if it's the processor or the software.

***** [Apr 24, 2006] by Henk Stuiver using HP IPAQ 2210
Exellent Software! I use it over 2 jears now, several times a week. It always works fine!