Comparison

Sky Map vs Planet Finder

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sky Map

Identify stars, planets, and constellations by pointing your device at the sky. Offers offline functionality, multiple visual styles, and real-time ISS and meteor shower tracking. Includes Apple Watch and widget support.

Highlights
  • Live star and planet identification
  • Offline functionality
  • ISS and meteor shower tracking
  • Multiple visual sky styles
  • Apple Watch integration
  • 13 customizable widgets
  • 100% red night mode
Features
Read full description

Point your phone at the sky — and know. Sky Map identifies every star, planet, constellation and deep-sky object you point at, instantly and fully offline. 115,000+ real stars and all 88 constellations render at buttery frame rates, aligned to your exact horizon. FIRST ON THE APP STORE • ISS Pass Live Activity — a countdown and pass arc right on your Lock Screen and Dynamic Island. Never miss a flyover again. • Meteor-shower peak nights and darkness countdowns as Live Activities too. THE SKY, YOUR WAY — 8 STYLES Realistic, Chart, Atlas (engraved gold), Red Night, Astro-photo, Aurora, Ink & Paper, Minimal Mono. Your chosen look follows you across the app, all 13 widgets and Apple Watch. BUILT FOR REAL NIGHTS • True 100% red night mode — protects your dark adaptation on every screen • Stargazing Index: one 0–10 score from clouds, Moon and light pollution • Drag-to-align compass correction + magnetic-interference detection • Stars twinkle. Planets don't. (That's real physics — and how you tell them apart.) ON YOUR WRIST Wrist-guided ISS spotting with a live bearing ring, a whole-sky dial, a solar-system orrery you can scrub through time, and Smart Stack complications that surface exactly at dusk. 13 WIDGETS Live sky chart, 360° horizon panorama, Moon phase calendar, solar system now, constellation of the day, aurora Kp index, the Sun live from NASA SDO, event countdowns with a one-tap reminder bell, and a red Nightstand mode for StandBy. HONEST BY DESIGN • Works 100% offline — airplane mode, backcountry, anywhere • No account. Your location never leaves your device. • The free tier stays free, forever. Premium adds depth: the 115,000-star deep catalog, 450+ NGC/IC objects, satellites, comets, event reminders, observation lists with FREE iCloud sync, and every style. The sky is out tonight. Go look up. For more information, please see our Privacy Policy and Terms of Use. • Terms of use: https://deeplyai.app/terms.html • Privacy policy: https://deeplyai.app/privacy.html Support & Contact Need help? • Rate us! Got feedback? info@deeplyai.app

About

Planet Finder

Explore the night sky by pointing your device upwards. Identify planets, stars, and constellations in real-time with an augmented reality overlay. Access a comprehensive celestial catalog and receive personalized astronomical information.

Highlights
  • Real-time celestial object identification
  • Augmented reality sky overlay
  • Comprehensive star and constellation catalog
  • Personalized astronomical information
  • Event calendar with reminders
  • Offline celestial computation
Features
Read full description

Point your phone at the sky and Planet Finder tells you exactly what you are looking at. Planets, stars, constellations and deep sky objects, all worked out live for the precise spot you are standing on. No account, no sign up, no waiting. Ask PlatonAI anything! An astronomer built into the app. Ask anything about tonight and get an answer for your location and the hour you are asking, not a page from a textbook. It knows what has already set, what is still climbing and what the Moon is about to wash out. POINT AND FIND ANYTHING Lift your phone and a pointer walks you to any planet, star or constellation. The camera view is labelled with what is really above you. TONIGHT, AT A GLANCE Everything visible from where you are right now, with rise, transit and set times, and a plan for the moment the sky finally goes dark. A SKY MAP WITH REAL DEPTH Pinch to zoom and the map keeps going. At the deepest levels thousands of faint stars come out, the way they do through a telescope. The whole map turns with your compass. THE COMPLETE CATALOGUE All 88 constellations. 196 named stars. The full Messier catalogue of 110 galaxies, nebulae and star clusters. Real NASA photographs of the Sun, the Moon and every planet. The Milky Way drawn across your own sky. A CALENDAR THAT TELLS YOU WHEN Moon phases, meteor showers, conjunctions, eclipses, oppositions, greatest elongations and supermoons. Set a reminder, or add any event to your own calendar with one tap. SIX SKY GAMES Games built around the real night sky. One of them is free every single day. MADE FOR REAL NIGHTS OUTSIDE Red night mode protects your night vision. The astronomy is computed on the device, so it keeps working with no internet at all. PLANET FINDER PRO Pro opens PlatonAI, the entire catalogue, unlimited AR finds, the deep zoom, every game, red night mode, a best viewing card you can save and share, and the ability to pin your own photo onto any object in AR. Planet Finder offers an auto renewing subscription with a free daily allowance. Weekly, monthly and yearly plans are available, plus a one time Lifetime purchase. Payment is charged to your Apple ID and renews unless canceled at least 24 hours before the period ends. Cancel anytime in App Store settings. Privacy Policy: https://spinbo.net/planetfinder/privacy Terms of Use: https://spinbo.net/planetfinder/terms

Screenshots

Sky Map4 screens
Planet Finder4 screens

Verdict

The call

The clearest difference is update cadence: Planet Finder at every 5 days against Sky Map's every 3 weeks. Planet Finder also leads on ratings volume (4 vs 1). Sky Map's advantage is device support (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sky Map sells 4 in-app purchases, starting at $1.99 per 7 days and Planet Finder sells 5 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.0 for Sky Map against 4.0 for Planet Finder. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

Sky Map ships an update every 3 weeks, Planet Finder every 5 days. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Sky Map versus Planet Finder: the parameters behind the verdict, then further details
ParameterSky MapPlanet Finder
PriceFreeFree
Rating4.0 (1 ratings)4.0 (4 ratings)
Positive reviews—0.0% of reviews
Number of ratings14 — better
Update frequencyEvery 3 weeksEvery 5 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.618.6
Further details — not scored
Size52 MB65 MB
Age rating4+4+
DeveloperDEEPLY AISEMPEAK INTERNET REKLAM BILISIM ANONIM SIRKETI

Customer experience

Sky Map

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Planet Finder

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

4 purchases

Sky Map

Subscriptions3
  • Sky Map Premium Weekly$1.997 Days
  • Sky Map Premium Monthly$5.991 Month
  • Sky Map Premium Yearly$24.991 Year
One-time1
  • Sky Map Premium Lifetime$79.99
5 purchases

Planet Finder

Subscriptions4
  • Pro Weekly$5.997 Days
  • Pro Monthly$14.991 Month
  • Pro Yearly Special$29.991 Year
Show 1 more
  • Pro Yearly$59.991 Year
One-time1
  • Pro Lifetime$69.00

Questions

Is Sky Map free?
Sky Map is free to download, with in-app purchases available.
Is Planet Finder free?
Planet Finder is free to download, with in-app purchases available.
Which has better reviews, Sky Map or Planet Finder?
Sky Map and Planet Finder are both rated 4.0 out of 5 on the App Store, from 1 and 4 ratings respectively.
Do Sky Map or Planet Finder have ads?
Both Sky Map and Planet Finder show ads.
Which is updated more often, Sky Map or Planet Finder?
Sky Map ships an update every 3 weeks, and Planet Finder every 5 days. Most recently, Sky Map was updated on November 7, 2026 and Planet Finder on November 6, 2026.

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