# DragLights vs DER Series

The clearest difference is ads: DER Series at none against DragLights's shown. DER Series also leads on update cadence (weekly vs every 3 weeks). DragLights's advantage is iOS requirement (12.3 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. DragLights sells 1 one-off in-app purchase and DER Series sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

DragLights ships an update every 3 weeks, DER Series weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DragLights | DER Series |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (14 ratings)](https://appshunter.io/ios/app/draglights/id1470492327/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 19 MB |
| Requires iOS | **12.3** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [VOLODYMYR YEFIMOV](https://appshunter.io/developer/1470492326) | [Stephan Monette](https://appshunter.io/developer/1299469285) |

## What reviewers say

### DragLights

[App page](https://appshunter.io/ios/app/draglights/id1470492327)

Measure acceleration with multiple modes for sports and racing. Offers different tree types for varied measurement intervals. Designed for quick and automatic data capture.

**Highlights:** Automatic acceleration measurement, Multiple measurement modes, Sport and race trees, Adjustable measurement intervals

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### DER Series

[App page](https://appshunter.io/ios/app/der-series/id6760514132)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Access | $0.99 | per month |
| DERSeries Sharing Service | $4.99 | per month |


## Frequently asked questions

### Is DragLights free?

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

### Is DER Series free?

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

### Do DragLights or DER Series have ads?

DragLights shows ads; DER Series does not.

### Which is updated more often, DragLights or DER Series?

DragLights ships an update every 3 weeks, and DER Series weekly. Most recently, DragLights was updated on November 3, 2026 and DER Series on October 31, 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.*