# DLR vs Kopfrechnen Trainer

The clearest difference is in-app purchases: Kopfrechnen Trainer at none against DLR's 6. DLR's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. DLR sells 6 in-app purchases, starting at $45.00 per month. Kopfrechnen Trainer asks for nothing beyond the download.

DLR ships an update every 4 days, Kopfrechnen Trainer every 2 weeks. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | DLR | Kopfrechnen Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 92 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jannis Mertens](https://appshunter.io/developer/1516764435) | [Alban Nelaj](https://appshunter.io/developer/1894156643) |

## What reviewers say

### DLR

[App page](https://appshunter.io/ios/app/dlr-test-training/id6761822550)

Prepare comprehensively for the DLR aptitude test for aspiring pilots. Features AI-powered coaching, personalized training plans, and practice for all ten test sections. Track your progress and connect with a community of fellow candidates.

**Highlights:** All 10 DLR test sections covered, AI-powered coaching and analysis, Personalized adaptive training plans, Clearance Score for progress tracking, Crew and community forums, Pass guarantee with subscription

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Economy | $45.00 | per month |
| Economy | $45.00 | per month |
| Business Class | $89.00 | per 3 months |
| Business Class | $89.00 | per 3 months |
| First Class | $129.00 | per 6 months |
| First Class | $129.00 | per 6 months |


### Kopfrechnen Trainer

[App page](https://appshunter.io/ios/app/kopfrechnen-trainer/id6764520128)

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

**In-app purchases:** none


## Frequently asked questions

### Is DLR free?

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

### Is Kopfrechnen Trainer free?

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

### Do DLR or Kopfrechnen Trainer have ads?

Neither DLR nor Kopfrechnen Trainer shows ads.

### Which is updated more often, DLR or Kopfrechnen Trainer?

DLR ships an update every 4 days, and Kopfrechnen Trainer every 2 weeks. Most recently, DLR was updated on September 10, 2026 and Kopfrechnen Trainer on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*