Mars vs NAPI Gallery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mars
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Humanity’s fascination with the Red Planet has never been stronger. With the completely reimagined "Mars: Curiosity" app, we bring the frontiers of space exploration directly to your fingertips through a premium, state-of-the-art experience. Witness Mars as if you were standing on its dusty plains. Our latest update introduces a stunning modern interface featuring glassmorphism elements, dynamic background animations, and an overall design language inspired by the future of space travel. WHAT’S NEW & REIMAGINED: SMART SEARCH & DISCOVERY: Quickly find exactly what you’re looking for with our new global search feature in both the Browse and Video sections. IMMERSIVE VIDEO EXPERIENCE: Watch Curiosity’s journey in high-definition with our all-new video player. Now supporting landscape mode for a true cinema feel, smart autoplay with preview protection, and an elegant Apple TV-inspired layout. MODERN DESIGN SYSTEM: Experience a "alive" interface with subtle stars animations, glass-like cards, and haptic feedback that makes exploring feel tactile and premium. KEY FEATURES: EXPLORE (BROWSE): Navigate through hundreds of official NASA photos with ease. Toggle between grid and list views, shuffle your findings, and search specifically for the missions that interest you most. CINEMATIC SLIDESHOW: Lose yourself in the Martian landscape. Browse full-screen, high-resolution imagery that makes you feel truly present on the planet. HD VIDEO ARCHIVE: Dive deep into Gale Crater, learn about Curiosity’s historic achievements, and explore over 50 years of Martian research through curated video content. INTERACTIVE GALLERY: Examine every detail with intuitive pinch-to-zoom gestures and high-contrast viewing modes. 3D MODELS: Step into the third dimension with interactive models that bring Martian topography and hardware to life. Whether you are a casual observer or a dedicated space enthusiast, Mars: Curiosity provides a compact, powerful, and visually stunning window into the future of our species on another world.
NAPI Gallery
Explore stunning images and videos from NASA's public API. View the Astronomical Picture of the Day, dating back to 1995, and discover rover images from Spirit, Opportunity, Curiosity, and Perseverance.
- Astronomical Picture of the Day
- Selectable dates for APOD (since 1995)
- Images from four NASA rovers
- Selectable earth-dates for rover images
- View images from inactive rovers
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This app makes use of the publicly available NASA REST API. This app makes it easy to visualize some of the APIs that return image information. The Astronomical Picture of the Day is typically an image but can sometimes be a video. * The date for the Astronomical Picture of the Day can be selected from today all the way back to July 16, 1995. * Four Rovers are covered: Spirit, Opportunity, Curiosity, and Perseverance. * The earth-date can be selected for each rover to view images of that date. * For Rovers that are no longer active, you can still view images since the active dates for the rover are still selectable. Keep an eye on this app as it will continue to be updated with new categories and anything that may have changed. Note: The DEMO_KEY (that's the actual key) can be used but only allows for a limited number of API calls which translates directly into the number of images that can be viewed per hour and per day. You can go to the NASA API site and apply for a free API Key which gives a much greater limit (1000 request per hour). Please take a look at the About page for more information.
Screenshots
Verdict
The clearest difference is ads: NAPI Gallery at none against Mars's shown. NAPI Gallery also leads on update cadence (every 4 months vs every 32 months) and iOS requirement (14.0 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Mars ships an update every 32 months, NAPI Gallery every 4 months. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.
| Parameter | Mars | NAPI Gallery |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 32 months | Every 4 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 108 MB | 4 MB |
| Age rating | 9+ | 4+ |
| Developer | Alparslan Topbas | Mitch Fisher |
In-app purchases
Mars
No in-app purchases
NAPI Gallery
No in-app purchases








