# Function Calc — user reviews

> 5 indexed App Store user reviews of Function Calc by Hugh Pelham, rated 5.00/5 from 3 ratings.

- Source: https://appshunter.io/ios/app/function-calc/id1188227053/reviews
- App overview in markdown: https://appshunter.io/ios/app/function-calc/id1188227053.md
- Rating breakdown: 5★ 2 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (5 lowest-rated)

### 1/5 — This work in portrait mode

*2020-07-12*

I installed this because one of the first statements was that it works in portrait mode, it doesn’t. Uninstalled.

### 5/5 — Incredibly Comprehensive!

*2026-06-21*

This is probably THE MOST POWERFUL calculator  app in existance today. And it is completely FREE and SECURE.  The only dowside is the almost vertical learning curve.

### 5/5 — This app is so great but make it the greatest

*2024-03-28*

Hugh,

I have dedicated some times to evaluate your product.

I rate it as 5 although it needs some enhancements.

Kindly please find time in future versions to include if , for , else or then statements, loops, max and min to make it the greatest. Even more so it is able to add graphics on the background for a certain repetitive problem.

I salute you even more as you are giving it free to humanity and for that you are truly blessed.

Hope to see these enhancements soon and more 
feedback from me.

Thank you very much!

Vernon P., PE, MAA emeritus

### 5/5 — Great functionality, but want more precision

*2023-11-06*

As a programmer I use the calculator to work with large numbers and sometimes I need to see more digits.

For example:
268,697,600 x 512  shows 1.37573171e11 but is missing the last (9th) digit in the general display - although in the history tab it displays accurately, but this can be confusing and annoying.

### 5/5 — Clean and simple. I like it!!

*2019-11-18*

Very good calculator app. Wow, no ads and it’s free. Thx

---

*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 2026-07-25.*