Comparison

Helix Angle Calculator vs ThreadChaser

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Helix Angle Calculator

Features
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Precision Threading, Simplified Helix Angle Calculator is a fast, free solution for calculating helix angles and selecting the correct anvil (insert shim) for any CNC thread-turning operation. Key Features - One-step calculations – Enter thread diameter and pitch, tap “Calculate,” and you’re done. - Accurate anvil selection – Choose your threading insert type and instantly receive the recommended anvil part number. - Metric and imperial support – Switch effortlessly between mm and TPI. - Offline functionality – No internet required, ideal for shop floor environments. - Multilingual interface – Available in Bahasa Indonesia, Dansk, Deutsch, English, Español, Français, Italiano, Magyar, Nederlands, Polski, Svenska, 繁體中文, 简体中文, 日本語 and 한국어.   Completely free – No ads, no sign-up, just practical tooling knowledge. How It Works 1. Enter the thread’s diameter. 2. Specify the pitch. 3. Select your insert code (e.g., 16ER, 22IR). 4. Instantly view the calculated helix angle and recommended anvil. Expert Guidance Included The app includes safety notes, multi-start thread considerations, and a direct link to a detailed guide on helix angles in thread turning—perfect for both experienced machinists and apprentices. Disclaimer All calculations are provided for reference purposes only. Always verify tooling parameters before machining. SmiCut assumes no responsibility for application results. Enhance precision, extend tool life, and streamline production—download Helix Angle Calculator today.

About

ThreadChaser

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ThreadChaser is the fastest way to identify an unknown thread — on the shop floor, in the field, or at the workbench. Simply measure the major diameter and pitch of any fastener or threaded component, enter the values, and ThreadChaser instantly searches its database of metric and imperial thread standards to find the closest matches. No more guessing, no more flicking through reference books, no more ordering the wrong tap or die. Who it's for ThreadChaser is built for engineers, machinists, mechanics, maintenance technicians, and anyone who regularly works with threaded fasteners. Whether you're identifying a mystery bolt on a piece of imported machinery, matching a thread on a worn component, or specifying a tap drill size for a new hole, ThreadChaser gives you the answer in seconds. What it covers: ISO Metric coarse and fine threads (M1 through M68) Unified National threads — UNC, UNF, and UNEF British Standard — BSW, BSF, and BSP With more standards being added regularly What you get: Instant thread matching with a tolerance you control Pitch diameter and minor diameter for every result Recommended tapping drill sizes Internal and external thread modes Technical thread profile diagrams A full reference library of thread standards and formulas How to use: Use a digital calliper to measure the major diameter or internal bore of the thread. Use a thread pitch gauge or ruler to measure the pitch (distance between thread crests). Enter both values, select your preferred standards, and hit Search. ThreadChaser ranks every match by how closely it fits your measurement. Terms of Use: https://www.threadchaser.com/TERMS

Screenshots

Helix Angle Calculator4 screens
ThreadChaser4 screens

Verdict

The call

The clearest difference is in-app purchases: Helix Angle Calculator at none against ThreadChaser's 1. Helix Angle Calculator also leads on iOS requirement (16.6 vs 18.6). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ThreadChaser sells 1 in-app purchase, starting at $2.99 per year. Helix Angle Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Helix Angle Calculator ships an update weekly, ThreadChaser every 5 days. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 4 level
Helix Angle Calculator versus ThreadChaser: the parameters behind the verdict, then further details
ParameterHelix Angle CalculatorThreadChaser
PriceFreeFree
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better18.6
Further details — not scored
Size8 MB2 MB
Age rating4+4+
DeveloperSmiCut ABJAMIE SAM PARTOVI

In-app purchases

None

Helix Angle Calculator

No in-app purchases

1 purchases

ThreadChaser

Subscriptions1
  • ThreadChaser Pro7 Days trial$2.991 Year

Questions

Is Helix Angle Calculator free?
Helix Angle Calculator is free to download, with no in-app purchases.
Is ThreadChaser free?
ThreadChaser is free to download, with in-app purchases available.
Do Helix Angle Calculator or ThreadChaser have ads?
Neither Helix Angle Calculator nor ThreadChaser shows ads.
Which is updated more often, Helix Angle Calculator or ThreadChaser?
Helix Angle Calculator ships an update weekly, and ThreadChaser every 5 days. Most recently, Helix Angle Calculator was updated on October 10, 2026 and ThreadChaser on October 1, 2026.

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