Helps users visualize celestial objects through telescopes or cameras. It calculates magnification, actual field of view, and exit pupil. Users can simulate views with different eyepieces and optical aids.
by iLanga, Inc.★ 4.344 ratingsEducation$2.99Data updated 2026-09-08
Estimated life expectancy and survival probabilities.
The app provides estimated life expectancy based on age and year of birth using US population mortality data. It also displays an interactive chart of survival probabilities and calculates actuarial values for annuities and life insurance.
The app provides images and usage descriptions for all 40 international code flags. It includes a quiz for memorization and the complete International Code of Signals document for reference.
