# D vs at bus

The clearest difference is review sentiment: D at 62% against at bus's 18%. at bus's advantage is in-app purchases (none vs 5) and chart position (#173 vs unranked). On price, update cadence, ads and monetization model there is nothing between them.

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

D ships an update every 5 weeks, at bus every 2 months. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | D | at bus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.1 (88 ratings)](https://appshunter.io/ios/app/at-bus/id1636455849/reviews)** |
| Number of ratings | — | **88** |
| Positive reviews | **62.0% of reviews** | 17.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#173** |
| Size | 48 MB | 95 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [D-Space SRLS](https://appshunter.io/developer/1754384147) | [Autolinee Toscane S.p.A.](https://appshunter.io/developer/1530206106) |

## 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 |


### at bus

[App page](https://appshunter.io/ios/app/at-bus/id1636455849)

**Currently charting:** #173 Top Free · Navigation (US App Store)

Plan your journeys, find bus stops and schedules, and check real-time service status. Purchase all types of tickets and passes directly within the app. Get on-board notifications and track your route to your destination.

**Highlights:** Trip planning, Save favorite places and stops, Real-time service status, Live departure times, Online ticket and pass purchase, On-board notifications, Route tracking

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is D free?

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

### Is at bus free?

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

### Do D or at bus have ads?

Neither D nor at bus shows ads.

### Which is updated more often, D or at bus?

D ships an update every 5 weeks, and at bus every 2 months. Most recently, D was updated on September 21, 2026 and at bus on September 24, 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.*