Comparison

Hubble vs Deep Sky Scanner

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

Head to head
About

Hubble

Features
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With the "Hubble: Deep Space PRO" application, our aim is to provide you with the information obtained from current researches about 'the Universe' in a compact way. Here you will find many fascinating images, some of which you will want to examine in detail and some you will want to read in detail. You will have a nice user experience and obtain detailed information while navigating through the beautiful photos taken by Hubble Space Telescope. FEATURES β€’ In the "Browse" section, you will be able to quickly browse through hundreds of photos (550+) and also read detailed information about them. β€’ In the "SlideShow" section, you will be able to browse through hundreds of impressive photos in full screen size and feel as if you were in the orbit at that moment. If you wish, you will be able to get detailed information about these impressive sights by tapping the Info button. β€’ In the "Gallery" section, you will be able to see all the photos impressively, show what you want in full screen and when you want to examine them in detail, you can zoom in with the help of your fingers. β€’ For those who do not want to be contented with just beautiful photos, there are many videos (220+) in the "Videos" section. β€’ You will get detailed information about "Deep Space Objects", β€’ You will also find three-dimensional models in the "3D" section.

About

Deep Sky Scanner

Features
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Point your phone at the sky and know instantly what’s worth imaging. Deep Sky Scanner turns your device into an aiming tool for the Seestar S50, scanning your field of view and ranking every galaxy, cluster, and nebula by altitude, brightness, and how well it’ll actually fit your frame. No more guessing what’s up, no star-hopping, no wasted setup time on a target that’s too big or too faint for tonight’s sky. FEATURES β€’ Live sky scan β€” see every object in view as you move your phone, tracked with full 3D orientation for steady accuracy even near the zenith β€’ Ranked target lists β€” sorted by altitude trajectory, brightness, or best overall fit for your Seestar S50 β€’ Frame-fit scoring β€” know before you start whether an object will actually fit the frame, not spill past the edges β€’ Ascending/descending badges β€” see whether a target is climbing toward better altitude or already past its peak β€’ Planning mode β€” drag the time slider to preview the sky at any hour and plan your session in advance β€’ Per-object imaging notes β€” integration-time guidance by magnitude, edge-on galaxy detection, and nearby-companion flags β€’ Full OpenNGC catalog with offline fallback β€” works even without a signal β€’ Additional catalogs are available and can be optionally selected on the settings page β€’ Supports the Seestar family of telescopes Built by a Seestar owner, for Seestar owners.

Screenshots

Hubble4 screens
Deep Sky Scanner3 screens

Verdict

The call

The clearest difference is price: Deep Sky Scanner at Free against Hubble's $0.99. Deep Sky Scanner also leads on update cadence (every 4 days vs every 9 months). On ads, in-app purchases, device support and iOS requirement 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

Deep Sky Scanner is free to download; Hubble costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Hubble ships an update every 9 months, Deep Sky Scanner every 4 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard2 real differences Β· 4 level
Hubble versus Deep Sky Scanner: the parameters behind the verdict, then further details
ParameterHubbleDeep Sky Scanner
Price$0.99Free β€” better
Update frequencyEvery 9 monthsEvery 4 days β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 β€” better
Further details β€” not scored
Size1.7 GB2 MB
Age rating9+4+
DeveloperAlparslan TopbasChris Eddy

In-app purchases

None

Hubble

No in-app purchases

None

Deep Sky Scanner

No in-app purchases

Questions

Is Hubble free?
Hubble costs $0.99, with no in-app purchases.
Is Deep Sky Scanner free?
Deep Sky Scanner is free to download, with no in-app purchases.
Do Hubble or Deep Sky Scanner have ads?
Neither Hubble nor Deep Sky Scanner shows ads.
Which is updated more often, Hubble or Deep Sky Scanner?
Hubble ships an update every 9 months, and Deep Sky Scanner every 4 days. Most recently, Hubble was updated on October 30, 2026 and Deep Sky Scanner on October 24, 2026.

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