TinyWatchCalc vs Construction Guru
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TinyWatchCalc
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A simple calculator for the Apple Watch. Supports addition, subtraction, multiplication and division.
Construction Guru
This comprehensive construction calculator offers a suite of tools for measurements, framing, and trigonometry. It provides visual previews, code compliance checks, and offline functionality, all accessible through a one-time purchase.
- Feet-inch-fraction math
- Framing and rafter calculations
- Unit conversions
- Trigonometry functions
- Code compliance checks
- Offline functionality
- Visual layout previews
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A complete construction calculator. One price. No subscriptions. $19.99. One time. Every feature. No subscription. Ever. Try everything free for 30 days. No credit card required. WHAT'S INCLUDED Core Calculator - Feet-inch-fraction math - Length, width, height, area & volume - Unit conversions (imperial & metric) - Triangle solver (SSS/SAS/ASA/AAS/SSA) - Paperless tape - 9-slot memory Framing Module - Right-angle solver (pitch, rise, run, diagonal) - Rafter calculator with bird's mouth details - Hip/valley rafters with backing angles - Stair calculator with IRC code compliance - Stringer cutting guide - Stud calculator with sheet count - Floor joist calculator - Baluster spacing with code checks - Fence project planner (multi-run, gates, shared corners) - Compound miter calculator - Rake wall calculator - Roofing estimator Tools Module - Trigonometry (sin/cos/tan/asin/acos/atan) - Board feet with species pricing - Circle & arc calculator - Percentage & square root BUILT FOR THE JOBSITE - Large touch targets that work with gloves - High contrast display readable in sunlight - Keep-screen-on mode - Works fully offline - Every calculation feels instant WHAT MAKES IT DIFFERENT - Visual layout previews and diagrams - Shareable results with professional formatting - IRC & IBC code compliance flags - Configurable fraction resolution (1/16", 1/32", 1/64") - Rounding indicators show when a measurement falls between fraction marks - Live-updating guided calculators - 4 themes and 6 button styles - Auto-saves your work
Screenshots
Verdict
The clearest difference is in-app purchases: TinyWatchCalc at none against Construction Guru's 1. TinyWatchCalc also leads on iOS requirement (12.0 vs 17.0). Construction Guru's advantage is update cadence (daily vs every 16 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Construction Guru sells 1 one-off in-app purchase. TinyWatchCalc asks for nothing beyond the download.
TinyWatchCalc ships an update every 16 months, Construction Guru daily. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.
| Parameter | TinyWatchCalc | Construction Guru |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 16 months | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Paid |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter Entwistle | Jaime McGauley |
In-app purchases
TinyWatchCalc
No in-app purchases
Construction Guru
- Full Access Unlock$19.99
Questions
Is TinyWatchCalc free?
Is Construction Guru free?
Do TinyWatchCalc or Construction Guru have ads?
Which is updated more often, TinyWatchCalc or Construction Guru?
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