Pricing

Simple. Honest. No tricks.

Plain calculator is free forever. Pro unlocks Construction mode, 50+ trade formulas, and an AI assistant that knows the job site.

Free

$0forever

A powerful plain calculator with exact feet-inch-fraction math, running tape, and sharing. No account needed.

App Store Google Play Use on Web

Pro

$5.99/month

or $65.99/year — save 8%

7-day free trial on App Store and Google Play. Cancel anytime through the store where you subscribed.

App Store — 7-Day Free Trial Google Play — 7-Day Free Trial Use on Web

What's included

FeatureFreePro

Plain calculator mode

Running tape & calculation history

Deep-link sharing

8 languages — full app interface

Exact feet-inch-fraction math

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Construction mode (framing + concrete)

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50+ construction formulas

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AI assistant (construction-aware)

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Voice input (Deepgram)

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Priority support

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You keep Pro access until the end of your billing period after cancelling. iPhone/iPad: Settings → Apple ID → Subscriptions → TB Logic. Android: Google Play → Profile → Payments & subscriptions → Subscriptions → TB Logic.