# DLR_next vs BPL Heißluftballon Trainer

The clearest difference is price: DLR_next at Free against BPL Heißluftballon Trainer's $8.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

DLR_next is free to download; BPL Heißluftballon Trainer costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DLR_next ships an update every 4 months, BPL Heißluftballon Trainer every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DLR_next | BPL Heißluftballon Trainer |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dlr-next/id871094282/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 38 MB | 19 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [DLR German Aerospace Center e.V.](https://appshunter.io/developer/418202933) | [mattia guatta](https://appshunter.io/developer/1063246820) |

## What reviewers say

### DLR_next

[App page](https://appshunter.io/ios/app/dlr-next/id871094282)

Explore the cosmos with interactive features about the International Space Station and the night sky. Track the ISS's live position, find upcoming visible passes, and use your phone as a mobile observatory to identify stars and planets.

**Highlights:** Live ISS position tracking, Upcoming ISS pass predictions, Mobile star observatory, Identify stars and planets, Detailed information on bright stars, Interactive 3D ISS map

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

**In-app purchases:** none


### BPL Heißluftballon Trainer

[App page](https://appshunter.io/ios/app/bpl-heiluftballon-trainer/id6627345482)

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

**In-app purchases:** none


## Frequently asked questions

### Is DLR_next free?

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

### Is BPL Heißluftballon Trainer free?

BPL Heißluftballon Trainer costs $8.99, with no in-app purchases.

### Do DLR_next or BPL Heißluftballon Trainer have ads?

Neither DLR_next nor BPL Heißluftballon Trainer shows ads.

### Which is updated more often, DLR_next or BPL Heißluftballon Trainer?

DLR_next ships an update every 4 months, and BPL Heißluftballon Trainer every 3 months. Most recently, DLR_next was updated on October 24, 2026 and BPL Heißluftballon Trainer 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.*