# Grinfer: learn new skills — user reviews

> 1 indexed App Store user reviews of Grinfer by Grinfer B.V., rated 2.50/5 from 2 ratings.

- Source: https://appshunter.io/ios/app/grinfer-learn-new-skills/id1536936724/reviews
- App overview in markdown: https://appshunter.io/ios/app/grinfer-learn-new-skills/id1536936724.md
- Rating breakdown: 5★ 0 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 1

## Most critical reviews (1 lowest-rated)

### 1/5 — App lags when trying to watch a course/lesson

*2021-07-15, version 2.1*

In theory this a a good concept but poorly executed. I try to watch different lessons in multiple different categories and each time a purple timing spinner wheel appears. I have the latest iPhone model and fiber optic fast speed internet so I figured the problem was the app itself. Ended up deleting app from my phone.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*