# Feet Inch Calculator - One16 — Woodworking and carpentry

> Woodworking math calculator with custom actions and widgets. (iPhone/iPad app by Code Carton.)

- Source: https://appshunter.io/ios/app/feet-inch-calculator-one16/id1672160610 (this page in markdown: same URL + `.md`)
- Developer: [Code Carton](https://appshunter.io/developer/1672159051)
- Category: Utilities, Productivity
- Price: $6.99 with in-app purchases
- Rating: 4.50/5 from 13 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 26 · 6 MB
- Languages: American English
- Released: 2023-03-23
- Data updated: 2026-07-23
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/feet-inch-calculator-one16/id1672160610/reviews.md

## What is Feet Inch Calculator?

Making stuff is fun. Math isn't. Making the most of our precious time in the shop is critical. One16 helps you spend less time calculating and more time building.

One16 V4 has been rebuilt from the ground up with a redesigned interface, full feet-and-inches support, and faster access to the tools you use most.

Enter measurements naturally, then add, subtract, multiply, or divide fractions and decimals. Choose your preferred rounding precision and switch between standard and feet-and-inches input directly from the calculator toolbar.

The redesigned history tape makes answers easier to distinguish and previous calculations easy to reuse. Double-tap a value to bring it back into the calculator, copy individual values to the clipboard, or copy an entire equation to share elsewhere.

Redesigned widgets keep your latest full equation and answer visible at a glance. You can also open One16 quickly from Control Center, the Lock Screen, or Shortcuts.

One16 includes thoughtful details for working quickly: optional denominator keys, haptic feedback, automatic keypad hiding while scrolling, decimal-to-fraction conversion, and fraction simplification.

Privacy is at the core of all our products. One16 doesn't track any data about you or how you use the app. If you find a bug or have a feature suggestion, please reach out. We love hearing from our users!

Full feature list:
- Feet-and-inches calculations
- Redesigned calculation history
- Add, subtract, multiply, and divide fractions and decimals
- Rounding presets: 1/64, 1/32, 1/16, 1/8, 1/4, 1/2, and 1
- Quick rounding and unit controls
- Decimal-to-fraction conversion
- Fraction simplification
- Optional denominator keyboard
- Copy individual values or complete equations
- Double-tap previous values for quick entry
- Haptic feedback
- Automatically hide the keypad while scrolling
- Widgets with your latest full equation
- Control Center, Lock Screen, and Shortcuts access
- Privacy focused

One16 is built by a weekend woodworker with a family and a full-time job. That's who this app is designed for. Have a feature suggestion? Let us know!

## Key features

- Customizable Actions
- Glanceable Widgets
- Equation Builder
- Fraction and Decimal Calculations
- Rounding Presets
- Privacy Focused

## Pricing and in-app purchases

Base price: $6.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pro Features | $9.99 | one-time |


## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/feet-inch-calculator-one16/id1672160610/reviews.md

### 4/5 — Good calculator, but I miss the old design

*2026-07-14*

I love this calculator, but the old design was awesome. Why was the old design removed? I wish you could add an option to bring back the legacy purple design. (also why was changing the color paid back then..)

**Developer response:** Thank you for your feedback!  I'd love to learn more about what you miss from the old design if you have time!  Feel free to reach out to me at hello@codecarton.com if you'd like to chat

### 1/5 — Added pro after pruchase

*2025-05-23*

Bought the app as part of a holiday thing for a discount, months later pro “features” were added for an additional purchase. Potential Users beware

**Developer response:** Hello!  On the purchase page you can unlock all the features you previously purchased for free.  Simply click the link for previous purchases on the purchase screen!

### 5/5 — Fantastic utility

*2024-07-12*

So good—and it’s totally come in handy many times during my bathroom remodel.

**Developer response:** Hey kc!
Thank you for the kind words!  I was a pleasure getting to chat with you!

### 5/5 — Bravo!

*2024-03-05*

Everything you need, nothing you don't.

**Developer response:** Thank you for the review and kind words!

### 4/5 — Very good app

*2023-12-20*

I originally gave this app a two star. Not because of how you use it but rather because I did not notice that there was a one time charge. Since then it was pointed out that there is notice of a one time charge and I feel it fair to say that this app is worth the charge. I have found it useful when building projects. And it is simple to use.

**Developer response:** Hello,

Thank you for taking the time to share your thoughts about our woodworking app. I appreciate your feedback and am glad to hear that you find my app useful.

I apologize for any confusion regarding the app's pricing structure. Transparency is important to us, and we are sorry if this wasn't clear at the outset. To clarify, the app is a one time purchase from the  App Store.  The price was listed on the Purchase button and confirmation dialog Apple presents when confirming the purchase.

You are welcome to reach out to Apple for the steps required to get a refund for the purchase.  Since the purchasing is handled through Apple and its App Store, I don’t have any way of refunding the purchase.

If you have any more questions or require further assistance, please feel free to reach out to me at hello@codecarton.com

Best regards,
Jordan
Code Carton

### 2/5 — Good app but you have to pay

*2023-12-17*

This is a good app for a woodworker but I can not find anywhere does it say that there is a cost to use it. Neither does it individually you can cancel the app. It doesn’t even indicate if it’s a one time charge or monthly charge. This would have been good information to know ahead of deciding if I was going to download it.

**Developer response:** Hello,

Thank you for taking the time to share your thoughts about our woodworking app. I appreciate your feedback and am glad to hear that you find my app useful.

I apologize for any confusion regarding the app's pricing structure. Transparency is important to us, and we are sorry if this wasn't clear at the outset. To clarify, the app is a one time purchase from the  App Store.  The price was listed on the Purchase button and confirmation dialog Apple presents when confirming the purchase.

You are welcome to reach out to Apple for the steps required to get a refund for the purchase.  Since the purchasing is handled through Apple and its App Store, I don’t have any way of refunding the purchase.

If you have any more questions or require further assistance, please feel free to reach out to me at hello@codecarton.com

Best regards,
Jordan
Code Carton

### 5/5 — Perfect App

*2023-11-10*

This App is exactly what I was looking for. Clean and Easy. A must have!

**Developer response:** Thank you for the kind words!

### 5/5 — Excellent

*2023-10-12*

The app is simple to use, does what claims to do, doesn't collect personal data, doesn't need a subscription, and is not cluttered with ads.  Worth every penny I paid.  The developer also listens and responds to feedback!

**Developer response:** Thank you for the kind words!

### 5/5 — Woodworkers: this is the one you're looking for.

*2023-08-21*

I've looked at literally every one of these on the App Store. Every. Bloody. One. This is the only one that performs the conversions easily and without fuss, isn't a stupidly-unreasonable amount of money, isn't a subscription, isn't driven by bait-and-switch in-app purchases, and isn't inundated with ads and pop-ups. 

It's fast, clean, accurate, and does what it says on the tin. And manages all of that for a reasonable, flat rate.

I also emailed a couple suggestions to the developer, who was responsive, intelligent, and a downright nice guy to boot. 

Worth. Every. Dime.

**Developer response:** Thank you for the kind words!  Thank you again for reaching out, it was a joy to connect!

## Frequently asked questions about Feet Inch Calculator

### What is Fraction Calculator used for?

Fraction Calculator is designed to simplify common math operations for woodworking and other crafts. It helps reduce errors and save time with features like custom actions and equation building.

### Does Fraction Calculator have ads?

No, Fraction Calculator is ad-free. The developer prioritizes a clean user experience without advertisements.

### What devices does Fraction Calculator support?

Fraction Calculator is currently supported on iPhone devices.

### How often is Fraction Calculator updated?

The app was last updated on September 15, 2025, indicating active development and support from the developer.

### What are the rounding presets in Fraction Calculator?

Fraction Calculator offers several rounding presets for convenience, including 1/64, 1/32, 1/16, 1/8, 1/4, 1/2, and 1.

### Can I create my own calculations in Fraction Calculator?

Yes, Fraction Calculator allows you to create your own custom calculations through its 'Actions' feature, automating common tasks.

### What is the age rating for Fraction Calculator?

Fraction Calculator has an age rating of 4+, making it suitable for a wide range of users.

### How does Fraction Calculator handle user privacy?

Fraction Calculator is privacy-focused and does not track any data about you or your usage. This ensures your information remains secure.

## Version history (last 5 releases)

### 4.0.0 — 2026-07-13

Now featuring feet and inch unit support!

### 3.0.0 — 2025-09-15

UI updates

### 2.2.6 — 2025-06-09

Hide rounding options when rounding is disabled.

### 2.2.5 — 2025-02-21

- Bug fix

### 2.2.4 — 2024-12-13

- Fix History tape calculations displaying out of order
- Fix "Clear History Tape" not deleting all calculations

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## More apps by Code Carton

- [Ditches - Habit Tracker](https://appshunter.io/ios/app/ditches-habit-tracker/id6482422925)
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All apps by Code Carton: https://appshunter.io/developer/1672159051

## Related topics

[inch calculator foot](https://appshunter.io/ios/topics/inch-calculator-foot)

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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 2026-07-23.*