# DER Series vs GoSlips

The clearest difference is in-app purchases: GoSlips at none against DER Series's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. DER Series sells 2 in-app purchases, starting at $0.99 per month. GoSlips asks for nothing beyond the download.

DER Series ships an update weekly, GoSlips every 10 days. The most recent releases landed on September 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DER Series | GoSlips |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (49 ratings)](https://appshunter.io/ios/app/goslips/id6783205666/reviews)** |
| Number of ratings | — | **49** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | — | Free |
| Size | 19 MB | 37 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stephan Monette](https://appshunter.io/developer/1299469285) | [Logan Back](https://appshunter.io/developer/1675706718) |

## What reviewers say

### 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 |


### GoSlips

[App page](https://appshunter.io/ios/app/goslips/id6783205666)

View live drag racing time slips directly on your phone. Track elapsed time, reaction time, speed, and more as races happen. Follow events from anywhere, whether you're at the track or at home.

**Highlights:** Live time slip viewing, Real-time race data, Track switching, Search past slips, Follow from any location

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

**In-app purchases:** none


## Frequently asked questions

### Is DER Series free?

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

### Is GoSlips free?

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

### Do DER Series or GoSlips have ads?

Neither DER Series nor GoSlips shows ads.

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

DER Series ships an update weekly, and GoSlips every 10 days. Most recently, DER Series was updated on September 28, 2026 and GoSlips 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.*