Comparison

Night Sky vs Ship Drawing Map

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

Head to head
About

Night Sky

Identify stars, planets, and constellations by pointing your device at the sky. Explore celestial objects in augmented reality and learn about space with an AI super astronomer. Share stargazing experiences with friends and family.

Highlights
  • AI personal planetarium
  • AR exploration of celestial objects
  • AI Super Astronomer assistant
  • Personalized Sky Tags
  • Connected Stargazing with SharePlay
  • Spatial audio navigation
  • AR Planetary Portals & Grand Orrery
Features
Read full description

Night Sky is a powerful AI personal planetarium. Quickly identify stars, planets, constellations and satellites above by simply holding your iPhone, iPad or Apple Watch to the Night Sky! This is all done magically. Whether you’re looking for a constellation, or the International Space Station, let Night Sky direct you to it, then explore the object in AR! FEATURE SET: - NIGHT SKY + AURA (Night Sky + Aura Subscription required) - Your Personal AI Super Astronomer! Ask Night Sky Aura virtually anything about Space and it will know the answer. Night Sky Aura fully interfaces with features within Night Sky, to direct you to objects you’re interested in, provide information on anything to do with astronomy, or even show you how the sky looks on the other side of the world! With your own personal AI Super Astronomer right by your side, Night Sky Aura becomes the new natural way to interact with the sky above! - SKY TAGS - Make Night Sky yours, by adding personal Sky Tags to the map! Pin Sky Tags to objects in the sky to save for future reference, and share them via iMessage so others can find them! Sky Tags can be categorized, and are completely personal to you. Maybe you want to tag a star as a memorial to someone, or tag something you’d like to observe later that night. You can even add Astrophotography photos and observation notes to your Sky Tags! - CONNECTED STARGAZING (+ Feature) - Connected Stargazing is a revolutionary new feature that utilizes SharePlay in iOS 15.1, allowing you to stargaze with others when you are apart! Start a FaceTime Audio call with those who you would like to stargaze with, then create a session by adding objects for everyone to find in the sky! - SPATIAL AUDIO OBJECT NAVIGATION - Using AirPods Pro or AirPods Max, search for an object when automatic sky tracking is on, and Night Sky will make the star, planet or constellation ‘chirp’ in the 360° soundscape, assisting you to navigate to the object with sound! - AR SKY WINDOW - Erase the ceiling of your bedroom, lounge or classroom with AR! Night Sky intelligently detects the ceiling or other flat surface in a room, and can make it magically disappear to reveal the sky behind it! - BILLIONS OF STARS! (+ Feature) - Space is vast, so Night Sky has been hyper charged with over 1.7 BILLION STARS streamed from the cloud! With a new super deep zoom (greater than 10X before), prepare to delve deeper into space than you ever imagined! - MAPS UI - A clean and familiar interface with Search features including Quick Find, intelligent Night Red Mode, Light Pollution indicator and easy to use menu, prepare to navigate Night Sky quicker than ever before! - AR PLANETARY PORTALS & AR GRAND ORRERY (+ Features) - Step onto the surface of other planets by placing AR portals around your room! Or walk around the entire Solar System using the newly refreshed interactive Grand Orrery! - NIGHT SKY WATCH AR - Night Sky magically comes to life on Apple Watch, with Glass Constellations, Red Vision, and Night Sky Live Tours - all on your wrist! - AR OBJECT EXPLORATION - Pull Planets, Stars and Constellations out of the sky and look at them in detailed AR! - NIGHT SKY TOURS (+ Feature): Get a live sky tour or create your own sky tours for any location and time in the world! - NIGHT SKY MINDFULNESS (+ Feature) - A mindfulness stargazing experience adding mindfulness minutes with Apple HealthKit. - AND MANY MORE FEATURES! Subscription Information: 'Night Sky +' and 'Night Sky + Aura' are available as optional subscriptions. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Privacy policy: http://www.icandiapps.com/privacy-policy/ Terms and Conditions of Use: http://www.icandiapps.com/terms-conditions/

About

Ship Drawing Map

Features
Read full description

Your vessel's drawings and manuals in one place — and they stay on your device. To know one windlass you open four things: the general arrangement for where it sits, the hydraulic diagram for its power, the wiring diagram for its supply, the maker's manual for its brake capacity. Manholes, cell guides, valves — the same hunt every time. WHAT IT DOES · Import PDF drawings and manuals — copied into the app, nothing uploaded · Full-text search across tens of thousands of pages, instantly and offline · Equipment cards: every document, manual page and pin for one piece of equipment on one screen · Pin tagging on drawings: tap a spot, tag the equipment, find it again later · Korean, Japanese and Chinese documents are searched properly, not just English ASK YOUR OWN DOCUMENTS — PRO · On-device AI answers only from the documents you imported, and shows the pages it used · Runs offline once the optional model is downloaded (about 1.5 GB, over Wi-Fi before you sail) · Scanned, image-only documents are indexed with on-device OCR so they become searchable too — Latin script for now (Korean and Chinese scans are not yet supported) SDM Pro is a one-time purchase, not a subscription. FOLLOW A SYSTEM · Connect equipment on a drawing to enter piping and electrical systems yourself · Pick a valve and follow upstream and downstream, see which valves isolate it, and what loses supply if it is shut · Results come as a list; tap one to jump to that spot on the drawing · It follows only the relations you entered — nothing is inferred from the drawing, and every result says so ONE PROJECT PER SHIP Each vessel gets its own project, so what you organise stays together instead of scattered across folders. PRIVACY BY DESIGN Your drawings and manuals never leave the device. The network is used only by the optional community and account features, and to download the optional AI model. Yard copyright, owner confidentiality and ISPS all point the same way — and it means the app still works mid-ocean with no signal. Note: this app organises material you already hold. It does not supply drawings, manuals or class rules. Copyright in what you import stays with its owner (yard, maker) — import and use it only as your company permits. Community and points are shared with the SeafarerJobWizard app family.

Screenshots

Night Sky4 screens
Ship Drawing Map4 screens

Verdict

The call

The clearest difference is update cadence: Ship Drawing Map at every 2 days against Night Sky's monthly. Night Sky's advantage is chart position (#27 vs unranked) and device support (6 vs 2). On price, ads, in-app purchases and iOS requirement 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. Night Sky sells 7 in-app purchases, starting at $5.99 per 7 days and Ship Drawing Map sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Night Sky ships an update monthly, Ship Drawing Map every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 8 level
Night Sky versus Ship Drawing Map: the parameters behind the verdict, then further details
ParameterNight SkyShip Drawing Map
PriceFreeFree
Rating4.7 (498K ratings) — better—
Positive reviews62.9% of reviews—
Number of ratings498K — better—
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
Best chart rank#27 — better—
DevicesiPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — betteriPhone, iPad
Requires iOS16.416.0 — better
Further details — not scored
Size530 MB90 MB
Age rating4+4+
DeveloperiCandi Apps Ltd.JIWON SEO

Bugs and requests

Night Sky

Reported bugs

3 issues
  • App crashing or freezing during use
  • Inaccurate mapping of the night sky compared to the real-world view
  • Issues with the app continuing to run and consume data in the background even when not in use

Requested features

5 requests
  • Option to disable or reduce the frequency of subscription prompts
  • Improved accuracy and responsiveness of the AR sky blending
  • More customization options to tailor the app experience
  • Better support for users in areas with high light pollution
  • Ability to search for and locate specific celestial objects more easily

Ship Drawing Map

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Night Sky

Subscriptions7
  • Night Sky +$5.997 Days
  • Night Sky +$9.991 Month
  • Night Sky + Aura$9.997 Days
Show 4 more
  • Night Sky + Aura$17.991 Month
  • Night Sky +$49.991 Year
  • Night Sky + Aura$69.991 Year
  • Night Sky + Aura3 Days trial$69.991 Year
4 purchases

Ship Drawing Map

One-time4
  • 500 Points$3.99
  • 1,200 Points$9.99
  • SDM Pro$14.99
Show 1 more
  • 3,000 Points$19.99

Questions

Is Night Sky free?
Night Sky is free to download, with in-app purchases available.
Is Ship Drawing Map free?
Ship Drawing Map is free to download, with in-app purchases available.
Do Night Sky or Ship Drawing Map have ads?
Neither Night Sky nor Ship Drawing Map shows ads.
Which is updated more often, Night Sky or Ship Drawing Map?
Night Sky ships an update monthly, and Ship Drawing Map every 2 days. Most recently, Night Sky was updated on November 5, 2026 and Ship Drawing Map on October 31, 2026.

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