Education & Reference (1202 programs)

Pros: Labels planets and stars. Easy to use and navigate. Zoom in and zoom out of planets.

Cons: Graphics are jerky and blocky. Zooming can be a bit slow.

Pros: Professional features.

Cons: No free or demo tier.

Pros: Millions of titles can be accessed at no charge.. Batch download options are offered to the user..

Cons: No other languages besides English and Russian are available to the user.. Processing speeds of 1 GHz or higher are required..

Pros: For all ages. Fosters learning and logic. Adjustable difficulty levels. Consumes less system resources.

Cons: Dated user interface. Too simplistic interface. No complex computations or formulas. No extra modes.

Pros: Lots of tests and drills. In depth analysis of results. Easy to use.

Cons: Dated and basic interface. Not many numeric pad drills.

Pros: Clear logical interface. Edits .po and .pot files.

Cons: No way to delete entries.