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iStellar

by AstroArts Inc.

  • Navigation
  • Paid
  • Zombie
  • Small & simple · 93
View on the App Store
Rating
4.0
1 ratings · US storefront
Top 96%among 88 Navigation apps
Last update
Sep 5, 2023
Version 2.9.6
Size
38 MB
Category
Navigation
Tracked since
Oct 9, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

iStellar is a planetarium App that shows the starry sky seen from the place and time of your choice. It is optimized for Multi-Touch control, allowing you to operate intuitively; drag to move the star chart, pinch to zoom in and out, and so on.
The star chart can be rotated from portrait to landscape, and you can even fix the location via GPS (only for iPhone 3G).

FEATURES

  • Over 16,000 star data, with name for 254 stars
  • Twinkles like actual stars
  • Simulates distortion (atmospheric refraction and extinction) at low altitude
  • Displays the Sun, daylight, twilight, the Moon (with shape and phase), 8 planets, Pluto
  • Shows name, line and picture for all constellations
  • Milky Way with real tone
  • Plots Messier objects and their names
  • Comets with accurate position and magnitude. Data can be downloaded whenever available
  • Meteor Shower Radiants
  • Solar eclipse simulation with high accuracy
  • Adjustable moonlight and light polution
  • Landscape and azimuth / direction grid
  • Beautiful animation (real-time, adjusted time, reversal)
  • Simulates every second between 1 Jan 1900 to 31 Dec 2099
  • Switches screen according to the device's orientation
  • Zoom by pinching(3 to 180 degrees)
  • Easy moving through the sky by dragging, and centering by double-tap
  • Object Search function
  • Free choice of location and time zone, instant setting with GPS

What’s new

Release notes for the latest version, as written by the developer.

v2.9.6

Fixed an issue where data was not reflected immediately after comet orbital element data was downloaded.
Fixed UI issue with iOS 15.

Rank history

Daily position in the Japan charts. #1 is at the top.

Best rank
#4
Current rank
#4
Days charting
7 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

93/100

Small & simple

  • Developer size70% · 25

    Developer: 2 apps on the charts

  • Audience size100% · 20

    Ratings: 1

  • App size100% · 10

    Size: 38 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof100% · 30

    Best rank #4, 14 countries

An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2

How the score works

Version history

  • 2.9.6LatestReleased Sep 5, 2023