Aciqra is described as '(uh-SEE-kruh) is a free and open source virtual sky map and planetarium which tracks and displays astronomical bodies including planets, nebulae and stars to an accuracy of a fraction of a degree for thousands of years into both the future and the past' and is a Star Map in the education & reference category. There are more than 25 alternatives to Aciqra for a variety of platforms, including iPhone, iPad, Windows, Android and Mac apps. The best Aciqra alternative is Google Earth. It's not free, so if you're looking for a free alternative, you could try Google Earth or Stellarium. Other great apps like Aciqra are Sky Map, KStars, Gaia Sky and Sky Guide.