Sky Map Downloads & RevenueSky Map · Google Play
Sky Map is #74 in Books & Reference Free on Google Play in Japan and charting in 18 of 23 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperSky Map Devs
CategoryBooks & Reference
PriceFree
Released–
Installs50M+
Rating★ 4.0 (480k)
Updated
Content ratingEveryone
Full timeline · 19 events
- 📈Sky Map entered the top 100Top Free · Books & Reference · TW
- 📈Sky Map charting in a new countryTaiwan
- 📈Sky Map entered the top 100Top Free · Books & Reference · SE
- 📈Sky Map charting in a new countrySweden
- 📈Sky Map entered the top 10Top Free · Books & Reference · IN
- 📈Sky Map charting in a new countryUnited Arab Emirates
- 📈Sky Map entered the top 100Top Free · Books & Reference · MX
- 📈Sky Map entered the top 100Top Free · Books & Reference · TH
- 📈Sky Map entered the top 100Top Free · Books & Reference · TR
- 📈Sky Map charting in a new countryTurkey
- 📈Sky Map entered the top 100 in 2 chartsTop Free · Books & Reference · NL · Top Free · Books & Reference · VN
- 📈Sky Map charting in a new country in 2 chartsNetherlands · Vietnam
- 📈Sky Map entered the top 100Top Free · Books & Reference · ES
- 📈Sky Map charting in a new country in 3 chartsSpain · Mexico · Thailand
- 📈Sky Map entered the top 100Top Free · Books & Reference · KR
- 📈Sky Map entered the top 100Top Free · Books & Reference · US
- 📈Sky Map entered the top 100 in 3 chartsTop Free · Books & Reference · BR · Top Free · Books & Reference · DE · Top Free · Books & Reference · IN
- 📈Sky Map entered the top 100Top Free · Books & Reference · GB
- 🆕Sky Map first spotted by AppInsiderFrance
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.0 ★
480k ratings
Measured
Best rank now
#74
Books & Reference FreeMeasured
Sky Map on Google Play
App details
App ID
com.google.android.stardroid
Publisher
Penterakt LLC
Publisher country
United States
Content rating
Everyone
Tech stack
Trackers and permissions of build v2.2.0:Buran, from the εxodus privacy report (CC BY-SA).
Trackers
1
Permissions
10
Trackers
Google Firebase Analytics
Full permission listProSee plans
Sky Map downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | Books & ReferenceFree | #74 |
 United States | Books & ReferenceFree | #138 |
 South Korea | Books & ReferenceFree | #89 |
 United Kingdom | Books & ReferenceFree | #142 |
 India | Books & ReferenceFree | #72 |
 Germany | Books & ReferenceFree | #129 |
 Australia | Books & ReferenceFree | #97 |
 France | Books & ReferenceFree | #130 |
 Spain | Books & ReferenceFree | #74 |
 Italy | Books & ReferenceFree | #92 |
 Brazil | Books & ReferenceFree | #128 |
 Canada | Books & ReferenceFree | #141 |
 Mexico | Books & ReferenceFree | #105 |
 Taiwan | Books & ReferenceFree | #100 |
 Netherlands | Books & ReferenceFree | #67 |
 Turkey | Books & ReferenceFree | #131 |
 Vietnam | Books & ReferenceFree | #83 |
 Thailand | Books & ReferenceFree | #150 |
Apps near Sky Map on the chart
Books & Reference Free, around #74.
Ratings
Google Play, worldwide.
Rating
4.0 ★
480k ratings
Measured
Ratings
480k
Measured
Written reviews
35k
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
–
Google Play's rating count fell over the last 4 weeks: it removed more ratings than came in (spam clean-ups, deleted accounts), so the pace can't be read right now
Written reviews a week
under 1
Google Play
Lifetime rating
4.2★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Sky Map
Sky Map helps you identify stars, planets, nebulae, and constellations in real-time.
Originally developed as Google Sky Map, it is now open source.
Find us online:
⭐ Official Website: stardroid.app
⭐ Open Source: Contribute on GitHub
⭐ Join the Community:
• Facebook @stardroidapp
• X @skymapdevs
App permissions:
Sky Map has no required permissions. Each permission below is optional — you may refuse any of them and still use the app. Nothing is requested at startup; each is asked for only when you first use the feature that needs it, and each can be withdrawn separately in your device settings.
⭐ Location (optional) — used to draw the sky for where you are. Refuse it and you can enter a place name or coordinates by hand instead. Your location never leaves your device.
⭐ Camera (optional) — used only by through-camera mode, which overlays the sky on the live camera view. Refuse it and every other mode works as normal. The image is never recorded or transmitted.
⭐ Notifications (optional) — used only to tell you about meteor-shower peaks and tonight's sky, if you ask for them. They stay off until you turn them on.
Originally developed as Google Sky Map, it is now open source.
Find us online:
⭐ Official Website: stardroid.app
⭐ Open Source: Contribute on GitHub
⭐ Join the Community:
• Facebook @stardroidapp
• X @skymapdevs
App permissions:
Sky Map has no required permissions. Each permission below is optional — you may refuse any of them and still use the app. Nothing is requested at startup; each is asked for only when you first use the feature that needs it, and each can be withdrawn separately in your device settings.
⭐ Location (optional) — used to draw the sky for where you are. Refuse it and you can enter a place name or coordinates by hand instead. Your location never leaves your device.
⭐ Camera (optional) — used only by through-camera mode, which overlays the sky on the live camera view. Refuse it and every other mode works as normal. The image is never recorded or transmitted.
⭐ Notifications (optional) — used only to tell you about meteor-shower peaks and tonight's sky, if you ask for them. They stay off until you turn them on.
What's new
New in 2.2 Sky alerts: meteor shower peaks and a nightly Tonight's sky digest. Long-press a layer for help, Moon age in the Moon widget, and a customizable RA/Dec grid.
New in 2.1 Home-screen widgets, searchable Help and an alt/az grid.
New in 2.1 Home-screen widgets, searchable Help and an alt/az grid.