# Manual Flash Calculator — user reviews

> 2 indexed App Store user reviews of Manual Flash Calculator by Winterink.

- Source: https://appshunter.io/ios/app/manual-flash-calculator/id6739006004/reviews
- App overview in markdown: https://appshunter.io/ios/app/manual-flash-calculator/id6739006004.md

## Most critical reviews (2 lowest-rated)

### 1/5 — App won’t open

*2026-03-06*

Waste of money. Was able to add a camera and flash. Upon opening the kit tab, the app crashed and will no longer open at all. Should be given a refund for this worthless app.

**Developer response:** The workaround in this case is to delete the app and restart it. In the app you can request support and get me some more details of what is configured. Then I can validate the issue in this case. Thanks.

### 1/5 — Status

*2025-07-07*

Status No Calculation possible, even with all the items on the list included.

**Developer response:** Thanks for the feedback. What happens more often then not in this case the required data for the flash, i.e. baseISO and Guidenumber are not filled. If these are not set, it actually does not know the flash data and can't calculate. Did you check these settings?

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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 2026-08-31.*