Comparison

Deep Into Space vs Astro Viewer

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

Head to head
About

Deep Into Space

Features
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Deep Into Space is a quiet, beautiful way to spend a minute with the universe each day. NASA's open data — but presented like an Apple product. True-black backgrounds, large hero imagery, considered typography. No ads, no accounts, no paywall. Today The NASA Astronomy Picture of the Day in its full-bleed glory. Read the astronomer's caption, view the high-resolution original, or share it. Mars Latest photographs straight from Perseverance and Curiosity — plus the archives of Opportunity and Spirit. Pick a rover, scroll the grid, tap any image for a pinch-zoom view of another world. Sky Today's near-Earth objects with diameter, speed, and lunar-distance miss distance. Hazardous flagged in red. A solar weather strip summarises the past week of flares from NASA's DONKI database. Earth Full-disc photographs of our planet from the DSCOVR satellite at the L1 Lagrange point, a million miles from home. Scrub through a day to watch Earth rotate. More James Webb's greatest hits. The NASA Exoplanet Archive — 5,000+ confirmed worlds, sorted habitable-zone first. The International Space Station's live position, updated every ten seconds. Your saved favourites. Imagery and data courtesy of NASA's open APIs. Built by ROIDS software.

About

Astro Viewer

Features
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Astro Viewer is your ultimate gateway to the universe, powered by multiple world-class space agencies and observatories. Access thousands of stunning astronomical images from NASA, ESA/Hubble, ESA/Webb, and ESO. Whether you are a student, an educator, or a space enthusiast, explore the cosmos through multiple telescopes and perspectives like never before. WHAT'S NEW: MULTI-AGENCY EXPANSION Now featuring four major astronomical image sources: - NASA Open API - Space exploration imagery - ESA/Hubble Space Telescope - Iconic optical observations - ESA/Webb Space Telescope - Infrared universe revelations - ESO Public Archives - Ground-based astronomical excellence Experience the universe through the world's most powerful telescopes! KEY FEATURES Break Language Barriers: Search in Any Language - Supports 130+ languages via intelligent auto-translation - Type "Andromeda" in Korean, Japanese, French, or any other language - Smart search engine queries multiple databases and delivers unified results - Auto-translation instantly converts descriptions of galaxies, nebulae, and black holes to your native language Educational & Bilingual Tools - Original vs. Translated Toggle: Switch between translated and original English text with a single tap—perfect for learning astronomical terms! - Detailed Metadata: Access photographer credits, observation dates, telescope specifications, and celestial keywords - Multi-Source Attribution: See which telescope/observatory captured each image Massive Astronomical Library - Multi-Agency Integration: Thousands of high-resolution images from NASA, Hubble, Webb, and ESO - Curated Catalog: Browse hand-picked selections of famous celestial objects (M31, M42, NGC series) - Smart Filtering: Focused purely on stunning celestial imagery—no administrative photos - Diverse Perspectives: Compare optical (Hubble), infrared (Webb), and ground-based (ESO) views Save & Share the Wonder - High-Resolution Downloads: Save breathtaking space wallpapers directly to your gallery - Contextual Sharing: Share images with friends via social media—text adapts to your language preference - Multi-Source Credits: Proper attribution to NASA, ESA, or ESO included Immersive Experience - Interactive Viewer: Zoom and pan to explore every stellar detail - Dark Mode UI: Sleek interface minimizing eye strain while viewing space imagery - Seamless Navigation: Browse across multiple archives effortlessly WHY ASTRO VIEWER? The universe is vast, but exploring it shouldn't be complicated. Astro Viewer combines the scientific depth of world-leading space agencies with the accessibility of modern translation technology. See the cosmos through Hubble's optical clarity, Webb's infrared vision, ESO's ground-based power, and NASA's exploration legacy—all in one app. It's not just a gallery; it's a comprehensive learning tool that brings the universe to your fingertips. Download Astro Viewer today and start your multi-telescope journey through the stars! DISCLAIMER This application is a third-party educational tool developed by an independent developer. It utilizes publicly available APIs from NASA, ESA (European Space Agency), and ESO (European Southern Observatory) to fetch astronomical images, but is NOT affiliated with, endorsed by, or an official product of NASA, ESA, or ESO. Data sources: - NASA's Open API (api.nasa.gov) - ESA/Hubble Space Telescope Archive (esahubble.org) - ESA/Webb Space Telescope Archive (esawebb.org) - ESO Public Image Archive (eso.org) According to their respective media usage guidelines, this content is generally available for educational and non-commercial use. Hubble and Webb are joint projects of NASA and ESA. ESO operates ground-based observatories in Chile.

Screenshots

Deep Into Space4 screens
Astro Viewer4 screens

Verdict

The call

Deep Into Space and Astro Viewer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
Deep Into Space versus Astro Viewer: the parameters behind the verdict, then further details
ParameterDeep Into SpaceAstro Viewer
PriceFreeFree
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.6
Further details — not scored
Size31 MB20 MB
Age rating4+4+
DeveloperMarija GvozdenovicHeebok Lee

In-app purchases

None

Deep Into Space

No in-app purchases

None

Astro Viewer

No in-app purchases

Questions

Is Deep Into Space free?
Deep Into Space is free to download, with no in-app purchases.
Is Astro Viewer free?
Astro Viewer is free to download, with no in-app purchases.
Do Deep Into Space or Astro Viewer have ads?
Neither Deep Into Space nor Astro Viewer shows ads.
Which is updated more often, Deep Into Space or Astro Viewer?
Deep Into Space ships an update every 4 months, and Astro Viewer every 4 months. Most recently, Deep Into Space was updated on October 26, 2026 and Astro Viewer on October 28, 2026.

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