Comparison

My Sky vs DeepSkyCentral

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

Head to head
About

My Sky

Features
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My Sky is a personal astronomy star map for deep-sky observers. Photograph a nebula, galaxy, star cluster, or planet, then pin it onto a live night-sky chart where it belongs. Browse a private deep-sky album, search stars and deep-sky objects, and set your observing site so the map matches tonight’s sky. β€’ Interactive star map with constellations and coordinate grid β€’ Pin your own nebula, galaxy, and planet photos to the sky β€’ Private album for deep-sky and solar-system images β€’ Search stars, planets, Messier objects, and other DSOs β€’ Region and language settings β€’ Optional watermark when you save No account required. Your astronomy photos stay on your device.

About

DeepSkyCentral

Features
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DeepSkyCentral is your AI-powered astronomy companion for all astronomers both visual observers and astrophotographers β€” plan your sessions, find your targets, and manage your gear all in one place. Built by astronomers- for astronomers. ASTRO AI, YOUR PERSONAL ASSISTANT Ask anything about astronomy, imaging, or equipment and get expert answers instantly. Astro AI recommends targets based on your location, gear, and the night's conditions, plus weather predictions built specifically for astronomical observing. FIND YOUR TARGETS AND YOUR SKY Use Target Finder and SkyView together with the FOV Image and Visual Framers to see exactly how a target will look through your telescope or camera before you head outside. Dark Sky Finder helps you locate the darkest nearby skies, and the Astro Calendar tracks moon phases and astronomical events. WEATHER & 10 DAY FORECAST MODELS Every astronomer has a keen eye for the weather - DeepSkyCentral Astro AI provides a summary of the current and upcoming conditions. Leverage the 10 day forecast with extensive data including cloud cover, seeing, transparency and dew predictions. And live radar (Pro subscription) FOV Calculator and Framer Find and frame your favorite targets with ease. See what your eyepiece or camera sees through your rig and frame your targets with ease. Create mosaics, and save directly to your personal Frame Library ( pro subscription). PLAN AND ORGANIZE EVERY SESSION Build Target Lists and Checklists, set up custom Equipment Profiles for your rigs, and use the Polar Alignment tool to get your mount dialed in fast. DeepSkyCentral's smart Session Planner and Session Diary (Pro Subscription) allows you to setup and record all your astro activity. Never miss a night, plan your sessions and get the most out of your astronomy journey. TARGET DATA Data includes best time of year to view or image a target, where the target is best viewable in the night sky, which filters to utilise, and detailed target summary. OVER 660,000 OBJECTS AND STARS Download specialized catalogue packs including the complete NGC/IC catalogue, the Washington Double Star Catalog, Sharpless HII regions for narrowband imaging, and a Gaia DR3 star field to magnitude 10 for precision framing and guiding β€” all available offline at your dark sky site. GO FURTHER WITH PRO Astro AI Pro, live satellite weather and cloud radar, live Aurora and Solar activity stats, the Astro Session Planner & Diary, an Image Library with plate solving, FITS file renaming and folder organization tools, unlimited locations and equipment profiles, and access to the Community Gallery and Dark Sky Location community sharing. EDUCATION AND KNOWLEDGE Extensive knowledgebase and terminology sections dive deep in the world of astronomy to help the beginner astronomer navigate through the night sky. Whether you're just starting to explore the night sky or refining an advanced astrophotography workflow, DeepSkyCentral brings everything you need into one place. Essentials and Pro are auto-renewing subscriptions, managed anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internal/terms/itunes/dev/stdeula/

Screenshots

My Sky4 screens
DeepSkyCentral4 screens

Verdict

The call

The clearest difference is update cadence: DeepSkyCentral at every 3 days against My Sky's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. My Sky sells 1 one-off in-app purchase and DeepSkyCentral sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

My Sky ships an update every 3 months, DeepSkyCentral every 3 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

Scorecard1 real difference Β· 5 level
My Sky versus DeepSkyCentral: the parameters behind the verdict, then further details
ParameterMy SkyDeepSkyCentral
PriceFreeFree
Update frequencyEvery 3 monthsEvery 3 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad β€” better
Requires iOS16.0 β€” better16.4
Further details β€” not scored
Size62 MB133 MB
Age rating4+4+
Developerε“² ζ΄ͺDean Stewart

In-app purchases

1 purchases

My Sky

One-time1
  • Donate to the Developer$0.99
4 purchases

DeepSkyCentral

Subscriptions4
  • Essentials Monthly$1.991 Month
  • Pro Monthly$3.591 Month
  • Essentials Annual$19.991 Year
Show 1 more
  • Pro Annual$35.991 Year

Questions

Is My Sky free?
My Sky is free to download, with in-app purchases available.
Is DeepSkyCentral free?
DeepSkyCentral is free to download, with in-app purchases available.
Do My Sky or DeepSkyCentral have ads?
Neither My Sky nor DeepSkyCentral shows ads.
Which is updated more often, My Sky or DeepSkyCentral?
My Sky ships an update every 3 months, and DeepSkyCentral every 3 days. Most recently, My Sky was updated on November 5, 2026 and DeepSkyCentral on November 6, 2026.

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