# Sunlight on the National Mall vs AR Memory DC

The clearest difference is update cadence: AR Memory DC at every 16 months against Sunlight on the National Mall's every 33 months. On price, ads, 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.

Sunlight on the National Mall ships an update every 33 months, AR Memory DC every 16 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Sunlight on the National Mall | AR Memory DC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sunlight-on-the-national-mall/id1515979092/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 16 months** |
| Monetization | Free | — |
| Size | 120 MB | 133 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Smithsonian Institution](https://appshunter.io/developer/370564865) | [Ka Man Yan](https://appshunter.io/developer/1787840647) |

## What reviewers say

### Sunlight on the National Mall

[App page](https://appshunter.io/ios/app/sunlight-on-the-national-mall/id1515979092)

Explore the sun's path over the Smithsonian Castle in a 360° environment. Observe how its position shifts across different seasons and record your findings using the provided data sheet.

**Highlights:** 360° National Mall view, Sun arc simulation, Seasonal sun path changes, Interactive data sheet, Smithsonian Castle focus

**Features:** macOS Compatibility

**In-app purchases:** none


### AR Memory DC

[App page](https://appshunter.io/ios/app/ar-memory-dc/id6443961768)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sunlight on the National Mall free?

Sunlight on the National Mall is free to download, with no in-app purchases.

### Is AR Memory DC free?

AR Memory DC is free to download, with no in-app purchases.

### Do Sunlight on the National Mall or AR Memory DC have ads?

Neither Sunlight on the National Mall nor AR Memory DC shows ads.

### Which is updated more often, Sunlight on the National Mall or AR Memory DC?

Sunlight on the National Mall ships an update every 33 months, and AR Memory DC every 16 months. Most recently, Sunlight on the National Mall was updated on November 3, 2026 and AR Memory DC on November 7, 2026.

---

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