# Fractions Calculator Pro vs Cementing Engineer

The clearest difference is monetization model: Fractions Calculator Pro at free with in-app purchases against Cementing Engineer's subscription. Cementing Engineer's advantage is ratings volume (3 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Fractions Calculator Pro sells 1 one-off in-app purchase and Cementing Engineer sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Fractions Calculator Pro against 5.0 for Cementing Engineer. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Fractions Calculator Pro ships an update every 10 days, Cementing Engineer fortnightly. The most recent releases landed on October 2, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Fractions Calculator Pro | Cementing Engineer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/fractions-calculator-pro/id6757721296/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/cementing-engineer/id6779455442/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 33 MB | 18 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Taylor Ballenger](https://appshunter.io/developer/1865560720) | [Rondo Wright](https://appshunter.io/developer/6779455444) |

## What reviewers say

### Fractions Calculator Pro

[App page](https://appshunter.io/ios/app/fractions-calculator-pro/id6757721296)

This app provides fast, accurate calculations for measurements involving feet, inches, and fractions, eliminating the need for decimals or mental math. It's designed for tradespeople and DIYers who frequently work with these units.

**Highlights:** Enter measurements naturally in feet, inches, and fractions, Avoids decimal conversions, Smart operator replacement, Automatic inch mark addition, One-tap common fractions, Includes 16ths precision

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fractions Calculator Pro Premium | $1.99 | one-time |


### Cementing Engineer

[App page](https://appshunter.io/ios/app/cementing-engineer/id6779455442)

This app is a field calculator for oilfield cementing operations. It allows users to input wellbore geometry and slurry details to get live, updated calculations for volumes, pressures, and pump schedules. The app also features a live well schematic and a tally book for saving and recalling job details.

**Highlights:** Field calculator for oilfield cementing, Live, updating calculations for volumes and pressures, Wellbore geometry and slurry stack input, Derived results with detailed math, Live well schematic, Tally Book for saving and recalling jobs, Offline functionality

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Annual | $79.99 | per year |


## Frequently asked questions

### Is Fractions Calculator Pro free?

Fractions Calculator Pro is free to download, with in-app purchases available.

### Is Cementing Engineer free?

Cementing Engineer is free to download, with in-app purchases available.

### Which has better reviews, Fractions Calculator Pro or Cementing Engineer?

Fractions Calculator Pro and Cementing Engineer are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Fractions Calculator Pro or Cementing Engineer have ads?

Neither Fractions Calculator Pro nor Cementing Engineer shows ads.

### Which is updated more often, Fractions Calculator Pro or Cementing Engineer?

Fractions Calculator Pro ships an update every 10 days, and Cementing Engineer fortnightly. Most recently, Fractions Calculator Pro was updated on October 2, 2026 and Cementing Engineer on October 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*