# TB Logic — Smart tools for Construction

> Construction jobsite calculator with smart formulas and AI chat. (iPhone/iPad app by Chill Inc.)

- Source: https://appshunter.io/ios/app/tb-logic/id6783934469 (this page in markdown: same URL + `.md`)
- Developer: [Chill Inc](https://appshunter.io/developer/6783934471)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 3 App Store ratings
- Age rating: 4+
- Requires: iOS 15.1 · 51 MB
- Languages: American English
- Released: 2026-07-03
- Data updated: 2026-08-16
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/tb-logic/id6783934469/reviews.md

## What is TB Logic?

Tool Belt Logic is the jobsite calculator built for framers, concrete crews, and GCs - fast, simple, and made for dirty gloves.

Free to use:
- Construction calculator with feet-inch-fraction math
- Tap-to-reuse running tape so you never lose a number

Tool Belt Logic Pro unlocks:
- Smart formulas: Rake Wall, Arch Wall, Stair Layout, Hip/Valley, Circle, Concrete Volume, and more - each with a clear cut list and a to-scale diagram
- AI Chat that answers jobsite math in plain language
- Learning Mode field tips
- Save and share your work
- English and Spanish

No clutter, no fluff - just the numbers you need to build it right the first time.

## Key features

- Feet-inch-fraction math
- Tap-to-reuse running tape
- Smart construction formulas
- AI jobsite math chat
- Save and share work
- Bilingual support (English/Spanish)

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Tool Belt Logic Pro | $5.99 | per month |
| Tool Belt Logic Pro (Yearly) | $65.99 | per year |



## Frequently asked questions about TB Logic

### What is TB Logic?

TB Logic is a jobsite calculator designed for construction professionals. It offers features like feet-inch-fraction math, a running tape, and advanced smart formulas for various construction tasks.

### Is TB Logic free to use?

The basic version of TB Logic is free and includes a construction calculator with feet-inch-fraction math and a tap-to-reuse running tape. Advanced features require a subscription to TB Logic Pro.

### What features does TB Logic Pro offer?

TB Logic Pro unlocks smart formulas for tasks like rake walls, arch walls, stairs, and concrete volume. It also includes an AI chat for jobsite math, learning mode tips, and the ability to save and share your work.

### How much does TB Logic Pro cost?

TB Logic Pro has two subscription options: $5.99 per month or $65.99 per year. Both plans offer a 3-day free trial.

### Does TB Logic have ads?

No, TB Logic does not contain advertisements. The app is free to use with optional in-app purchases for its Pro features.

### What devices does TB Logic support?

TB Logic is available on iPhone, iPad, and iPod. It is designed to be compatible with Apple's mobile operating systems.

### How often is TB Logic updated?

The latest version of TB Logic is 1.0.3, and it was last updated on July 12, 2026. Updates typically include bug fixes and feature enhancements.

### What languages does TB Logic support?

TB Logic is available in both English and Spanish, making it accessible to a wider range of construction professionals.

## Version history (last 4 releases)

### 1.0.4 — 2026-07-20

Bug fix: corrected a case where a negative number could lose its minus sign during a calculation (for example, -0.27 x 1000 now correctly shows -270).

### 1.0.3 — 2026-07-12

Tool Belt Logic is the jobsite calculator for framers, concrete crews, and GCs. Feet-inch-fraction math, a tap-to-reuse running tape, smart formulas (Rake Wall, Stair Layout, Hip/Valley, Concrete Volume and more) with clear cut lists and to-scale diagrams, plus AI chat that answers jobsite math in plain language. Fast, simple, built for dirty gloves.

### 1.0.1 — 2026-07-05

We're now TB Logic — the same jobsite calculator, with a cleaner name. This update also includes performance and stability improvements.

### 1.0 — 2026-07-03

No release notes.

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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 2026-08-16.*