# DLR_next vs Sternbild Trainer

The clearest difference is rating: DLR_next at 5.0 against Sternbild Trainer's 1.0. DLR_next also leads on iOS requirement (13.0 vs 15.0). Sternbild Trainer's advantage is update cadence (fortnightly vs every 4 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DLR_next holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

DLR_next ships an update every 4 months, Sternbild Trainer fortnightly. The most recent releases landed on June 25, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | DLR_next | Sternbild Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dlr-next/id871094282/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/sternbild-trainer/id1611783468/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 38 MB | 34 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [DLR German Aerospace Center e.V.](https://appshunter.io/developer/418202933) | [Marc Herda](https://appshunter.io/developer/556324568) |

## 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

**In-app purchases:** none


### Sternbild Trainer

[App page](https://appshunter.io/ios/app/sternbild-trainer/id1611783468)

Learn to identify stars and constellations with interactive quizzes. This app helps you map celestial bodies, align telescopes, and explore the night sky, even offline.

**Highlights:** Star and constellation identification, Interactive quizzes, North and South sky coverage, Telescope alignment assistance, Offline functionality, Star hopping guidance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DLR_next free?

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

### Is Sternbild Trainer free?

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

### Which has better reviews, DLR_next or Sternbild Trainer?

DLR_next is rated higher. DLR_next averages 5.0 out of 5 from 1 ratings, while Sternbild Trainer averages 1.0 from 1 ratings.

### Do DLR_next or Sternbild Trainer have ads?

Neither DLR_next nor Sternbild Trainer shows ads.

### Which is updated more often, DLR_next or Sternbild Trainer?

DLR_next ships an update every 4 months, and Sternbild Trainer fortnightly. Most recently, DLR_next was updated on June 25, 2026 and Sternbild Trainer on September 8, 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.*