# D vs SmartCity3D AR

The clearest difference is in-app purchases: SmartCity3D AR at none against D's 5. D's advantage is update cadence (every 5 weeks vs every 6 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. D sells 5 in-app purchases, starting at $1.99 per month. SmartCity3D AR asks for nothing beyond the download.

D ships an update every 5 weeks, SmartCity3D AR every 6 months. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | D | SmartCity3D AR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 62.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 3 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [D-Space SRLS](https://appshunter.io/developer/1754384147) | [Digitarca S.R.L.](https://appshunter.io/developer/1584782431) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-space/id1451799437)

Plan and execute safe, compliant drone flights across Italy and Europe. Access real-time maps, airspace data, and weather information. Manage flight authorizations and store documents securely.

**Highlights:** Real-time interactive map with airspace data, Official, continuously updated flight information, Airsense aircraft detection, Live weather radar and forecasts, Automatic flight permit requests, Cloud archive for flight documents

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $1.99 | per month |
| Quarterly subscription | $3.99 | per 3 months |
| Six-monthly subscription | $8.99 | per 6 months |
| Annual subscription | $17.99 | per year |
| ATM-05 automatic filling | $1.99 | one-time |


### SmartCity3D AR

[App page](https://appshunter.io/ios/app/smartcity3d-ar/id1611730309)

**In-app purchases:** none


## Frequently asked questions

### Is D free?

D is free to download, with in-app purchases available.

### Is SmartCity3D AR free?

SmartCity3D AR is free to download, with no in-app purchases.

### Do D or SmartCity3D AR have ads?

Neither D nor SmartCity3D AR shows ads.

### Which is updated more often, D or SmartCity3D AR?

D ships an update every 5 weeks, and SmartCity3D AR every 6 months. Most recently, D was updated on October 22, 2026 and SmartCity3D AR on October 25, 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.*