# Mars vs NAPI Gallery

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.

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.

## The numbers

| Metric | Mars | NAPI Gallery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/napi-gallery/id1561951283/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 32 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 108 MB | 4 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Alparslan Topbas](https://appshunter.io/developer/1130875171) | [Mitch Fisher](https://appshunter.io/developer/418175048) |

## What reviewers say

### Mars

[App page](https://appshunter.io/ios/app/mars-curiosity/id1549319225)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### NAPI Gallery

[App page](https://appshunter.io/ios/app/napi-gallery/id1561951283)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mars free?

Mars is free to download, with no in-app purchases.

### Is NAPI Gallery free?

NAPI Gallery is free to download, with no in-app purchases.

### Do Mars or NAPI Gallery have ads?

Mars shows ads; NAPI Gallery does not.

### Which is updated more often, Mars or NAPI Gallery?

Mars ships an update every 32 months, and NAPI Gallery every 4 months. Most recently, Mars was updated on September 30, 2026 and NAPI Gallery on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*