# DDNY vs Space

The clearest difference is update cadence: Space at monthly against DDNY's every 4 months. DDNY's advantage is iOS requirement (13.0 vs 15.1). 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.

DDNY ships an update every 4 months, Space monthly. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | DDNY | Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/space-a-roll-call/id6758277938/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Free |
| Size | 18 MB | 30 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Designated Drivers of Buffalo inc](https://appshunter.io/developer/1291998900) | [Amnon Ashe](https://appshunter.io/developer/1871928453) |

## What reviewers say

### DDNY

[App page](https://appshunter.io/ios/app/ddny/id1291998901)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Space

[App page](https://appshunter.io/ios/app/space-a-roll-call/id6758277938)

This app consolidates publicly available military flight schedules and roll call information for eligible travelers. It provides easy access to Space-A flight schedules, seat availability, and recent updates from official sources in one convenient location.

**Highlights:** Space-A flight schedules, Roll call and seat availability, Schedule update visibility, Mobile-friendly design, Official data sources

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DDNY free?

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

### Is Space free?

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

### Do DDNY or Space have ads?

Neither DDNY nor Space shows ads.

### Which is updated more often, DDNY or Space?

DDNY ships an update every 4 months, and Space monthly. Most recently, DDNY was updated on October 5, 2026 and Space on October 3, 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.*