Cosmic Deepsky vs Caldwell Journal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cosmic Deepsky
Explore the universe with a virtual telescope. Discover galaxies, star clusters, and nebulae with stunning real images and detailed information. A pocket guide to the cosmos.
- Virtual telescope functionality
- Detailed information on 4000+ galaxies
- Real astro-photographs of celestial objects
- Hand-measured and oriented images
- Exploration of deep sky objects
- Information on star clusters and nebulae
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Welcome to Cosmic Deepsky, where the marvels of the universe come alive through the lens of your device – your very own magic telescope. We live on a planet cruising through space, surrounded by the vast expanse of the cosmos. The canvas of our existence extends far beyond the confines of our planet, stretching into the depths of the celestial sphere above and below. By day, our atmosphere dances with the brilliance of sunlight, casting a cerulean glow upon the world. Yet, as night descends, a grand spectacle unfolds. Against the backdrop of darkness, myriad suns dot the heavens, weaving intricate constellations that have captivated humanity for millennia. Here, amidst the twinkling stars, lies the gateway to the deep sky – a realm where gas clouds and cosmic debris coalesce, painting celestial masterpieces with the strokes of light and gravity. Among these wonders, stars congregate in clusters, while others journey across the galactic plane in majestic arcs. Supernovae remnants and planetary systems adorn the spiral arms of our Milky Way galaxy, a cosmic tapestry of stellar life. Yet, the deep sky knows no bounds, extending far beyond our galactic borders to distant neighbors like the Magellanic Clouds and the majestic Andromeda galaxy. With Cosmic Deepsky, we invite you to peer into the depths of the universe like never before. Featuring the positions of the 4000 brightest and closest galaxies, alongside stunning real images of hundreds of them meticulously measured and oriented by hand, our app offers a unique window into the cosmic expanse. Delve into the depths of intergalactic space, where millions of galaxies beckon with their luminous allure, their distant light captured in mesmerizing astro-photographs. Embark on a journey of discovery and wonder as we unveil the mysteries of the cosmos. Through Cosmic Deepsky, may you find inspiration and awe in the boundless beauty that surrounds us, igniting a newfound appreciation for the magical universe we call home.
Caldwell Journal
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ASTRONOMERS: Use the Caldwell Journal to learn about, locate, & journal all 109 objects from the Caldwell Catalog. For astrophotographers and visual astronomers who are collecting the Caldwell objects. This app will help you learn, locate, and journal all 109 objects from Sir Patrick Moore's Caldwell Catalog. It is a great way to keep an organized record of finding these celestial wonders. FEATURES LEARN: All 109 Caldwell objects are included with brief descriptions and photos. LOCATE: Detailed star maps and right-ascension/declination coordinates included with each object. FILTER: Narrow your search by constellation, difficulty, object type, and visibility in your location. EXPECTATIONS: What you can expect to see using binoculars, and small, medium, & large size telescopes. PHOTO ALBUM: Upload photos from your - sketches, smartphone eyepiece views, astrophoto rig, or smart telescope. FAVORITES: Mark your favorite Caldwell objects. DETAILS: Record date, time, location, equipment used, magnification, and any other pertinent notes. STAT TRACKER: Keeps track of spotted object statistics by constellation, difficulty, object type, & total. COLLAGE GENERATOR: Generate a collage of your captured objects. PRINTABLE LOG: For visual astronomers, use the included printable PDF for sketching views from your eyepiece. Photograph your sketch for safe digital keeping in the app. EXPORTABLE: Export your journal to PDF.
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Verdict
The clearest difference is price: Caldwell Journal at $0.99 against Cosmic Deepsky's $2.99. Cosmic Deepsky's advantage is iOS requirement (15.0 vs 18.4). On ads, in-app purchases and device support 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
Cosmic Deepsky costs $2.99 and Caldwell Journal $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Cosmic Deepsky | Caldwell Journal |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 23 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.4 |
| Further details — not scored | ||
| Size | 114 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Celestial Dynamics AG | Damon Degner |
In-app purchases
Cosmic Deepsky
No in-app purchases
Caldwell Journal
No in-app purchases




