Thread Calculators vs EinkBro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thread Calculators
This app provides precise thread-cutting data for various international standards. It assists machinists, engineers, and CNC professionals in quickly finding essential measurements and detailed tables for thread dimensions and cutting values.
- Supports international thread standards (M, UNC, NPT, etc.)
- Tap Hole Size Calculator
- Bolt Diameter Guide
- Tap Hole Forming Data
- Tap Hole Repair Values
- Detailed thread dimension tables
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Get quick and accurate thread-cutting data with this complete thread calculator app. It supports a wide range of international thread standards, including M, MF, UNC, UNF, UNEF, UNR, UNS, NPT, NPTF, NPSC, NPSF, NPSL, NPSM, BA, BSP, BSF, BSW, BSPP, TR, and TRF. Whether you're a machinist, engineer, or CNC professional, this app helps you find the right measurements instantly. Access detailed tables for thread dimensions and cutting values in one place. Key tools included: - Tap Hole Size Calculator – Find the correct drill size for perfect threading - Bolt Diameter Guide – Quickly check standard bolt dimensions - Tap Hole Forming Data – Accurate values for forming taps - Tap Hole Repair Values – Fix damaged threads with the correct specs This app is your handy companion for fast, reliable, and precise thread-cutting calculations.
EinkBro
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EinkBro is a lightweight, fast browser designed for simplicity — and for anyone who wants calm, distraction-free reading on iPhone and iPad. Optimized reading experience • Turn pages by tapping the screen edges — no scrolling needed • Reader mode with clean typography • Vertical reading mode for CJK text • Font size button and bold text toggle • High-contrast icons and minimal animations AI integration • Chat with the current page or summarize it • Translate pages by paragraph • Works with GenAI solutions
Screenshots
Verdict
The clearest difference is price: EinkBro at Free against Thread Calculators's $1.99. EinkBro also leads on update cadence (every 5 days vs every 10 months). Thread Calculators's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases 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
EinkBro is free to download; Thread Calculators costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Thread Calculators ships an update every 10 months, EinkBro every 5 days. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.
| Parameter | Thread Calculators | EinkBro |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 51 MB | 59 MB |
| Age rating | 4+ | 17+ |
| Developer | Kantaben Gorasiya | MAO YUAN KAO |
In-app purchases
Thread Calculators
No in-app purchases
EinkBro
No in-app purchases
Questions
Is Thread Calculators free?
Is EinkBro free?
Do Thread Calculators or EinkBro have ads?
Which is updated more often, Thread Calculators or EinkBro?
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