# Carpentry Formulator vs Fraction Calculator Plus #1

The clearest difference is review sentiment: Fraction Calculator Plus #1 at 95% against Carpentry Formulator's 25%. Fraction Calculator Plus #1 also leads on rating (4.9 vs 3.8) and ratings volume (22K vs 4). Carpentry Formulator's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Carpentry Formulator sells 1 one-off in-app purchase and Fraction Calculator Plus #1 sells 9 in-app purchases, starting at $1.39 per month. Whichever you choose, the download price is not the number that matters.

Fraction Calculator Plus #1 holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: Fraction Calculator Plus #1 has 22K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 25% of Carpentry Formulator's written reviews are positive against 95% of Fraction Calculator Plus #1's.

Carpentry Formulator ships an update every 2 months, Fraction Calculator Plus #1 every 5 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Carpentry Formulator | Fraction Calculator Plus #1 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (4 ratings)](https://appshunter.io/ios/app/carpentry-formulator/id305583131/reviews) | **[4.9 (22K ratings)](https://appshunter.io/ios/app/fraction-calculator-plus-1/id580778301/reviews)** |
| Number of ratings | 4 | **22K** |
| Positive reviews | 25.0% of reviews | **94.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 148 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [DigitAlchemy LLC](https://appshunter.io/developer/376971628) |

## What reviewers say

### Carpentry Formulator

[App page](https://appshunter.io/ios/app/carpentry-formulator/id305583131)

This app provides over 150 formulas and dozens of conversions for carpenters and builders. It calculates loads on walls and headers, material quantities for projects, and dimensions for roofing and stairs. It also includes area and volume calculations for various shapes.

**Highlights:** Load calculations for walls and headers, Material quantity estimation (joists, studs, concrete), Roofing and stair dimension calculations, Area and volume formulas for geometric shapes, Dozens of unit conversion tools, Shareable calculation results

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional Features | $2.99 | one-time |


### Fraction Calculator Plus #1

[App page](https://appshunter.io/ios/app/fraction-calculator-plus-1/id580778301)

Easily perform fraction calculations including addition, subtraction, multiplication, and division. Convert fractions to decimals and vice versa with a clear, user-friendly interface. Ideal for students, cooks, and DIYers needing quick and accurate fraction management.

**Highlights:** Add, subtract, multiply, and divide fractions, Convert fractions to decimals, Automatically simplifies fractions, Large display and buttons for easy use, Triple keyboard display for quick input, Displays results as decimals

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fraction Calculator | $1.39 | per month |
| Fraction Calculator | $1.99 | per month |
| Photo Calculator for Fractions | $1.99 | per 7 days |
| Fraction Calculator by Photo | $3.99 | per month |
| Calculator with Fractions | $8.39 | per year |
| Calculator with Fractions | $11.99 | per year |
| Remove ads | $3.99 | one-time |
| Fraction Calculator | $17.49 | one-time |
| Fraction Calculator | $24.99 | one-time |

**What reviewers like**

- 👍 Simple, easy to use
- 👍 Super app
- 👍 Awesome calculator
- 👍 Intuitive design
- 👍 Easy to use and does everything needed

**What reviewers complain about**

- 🐛 Intrusive ads
- 🐛 Subscription required for pro features

**Reported bugs**

- Pro version forgets subscription status
- Occasional crashes

**Requested features**

- Decimal conversion and support
- Rounding options
- Triangle math functionality


## Frequently asked questions

### Is Carpentry Formulator free?

Carpentry Formulator is free to download, with in-app purchases available.

### Is Fraction Calculator Plus #1 free?

Fraction Calculator Plus #1 is free to download, with in-app purchases available.

### Which has better reviews, Carpentry Formulator or Fraction Calculator Plus #1?

Fraction Calculator Plus #1 is rated higher. Carpentry Formulator averages 3.8 out of 5 from 4 ratings, while Fraction Calculator Plus #1 averages 4.9 from 22K ratings.

### Do Carpentry Formulator or Fraction Calculator Plus #1 have ads?

Fraction Calculator Plus #1 shows ads; Carpentry Formulator does not.

### Which is updated more often, Carpentry Formulator or Fraction Calculator Plus #1?

Carpentry Formulator ships an update every 2 months, and Fraction Calculator Plus #1 every 5 weeks. Most recently, Carpentry Formulator was updated on October 27, 2026 and Fraction Calculator Plus #1 on October 28, 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.*