# PM Formulas (PMP exam prep) — user reviews

> 5 indexed App Store user reviews of PM Formulas (PMP exam prep) by Alexandre Petrov, rated 3.00/5 from 6 ratings.

- Source: https://appshunter.io/ios/app/pm-formulas-pmp-exam-prep/id642144962/reviews
- App overview in markdown: https://appshunter.io/ios/app/pm-formulas-pmp-exam-prep/id642144962.md
- Rating breakdown: 5★ 2 · 4★ 1 · 3★ 0 · 2★ 1 · 1★ 2

## Most critical reviews (5 lowest-rated)

### 1/5 — Errors in formula

*2015-12-17, version 1.07*

Standard deviation formula is wrong.  Beware.

### 1/5 — $4 and just 3 more formulas

*2014-09-13, version 1.03*

I want my money back!

### 4/5 — Really nice

*2014-11-21, version 1.06*

Super very helpful.

### 4/5 — Nice for reference

*2014-10-06, version 1.04*

Good for reference
Not much help preparing for the PMP exam

### 5/5 — PM Formulas

*2015-10-26, version 1.07*

The free App is Excellent!
Great reference, review and study aid. Thank you!!!

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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.*