# OptoPrep - NBEO® Part I — user reviews

> 3 indexed App Store user reviews of OptoPrep by XPrep Learning Solutions, Inc, rated 3.50/5 from 18 ratings.

- Source: https://appshunter.io/ios/app/optoprep-nbeo-part-i/id1297149615/reviews
- App overview in markdown: https://appshunter.io/ios/app/optoprep-nbeo-part-i/id1297149615.md
- Rating breakdown: 5★ 9 · 4★ 2 · 3★ 1 · 2★ 1 · 1★ 5

## Most critical reviews (3 lowest-rated)

### 2/5 — Needs to be fixed

*2023-03-14*

Optoprep provides great material and practice questions
The app crashes every other question before getting to see the answer. This is extremely unhelpful when trying to learn. Please fix

### 3/5 — Please fix the Calculator!!

*2020-01-17*

Awesome app but the calculator function never works.

### 4/5 — Great except calc

*2023-04-25*

Overall a great functioning app, but the calculator doesn’t work. I have to completely close out of the app to use it if I accidentally open the calculator.

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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 2026-09-03.*