Milling Calcs vs ParaGraph3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Milling Calcs
This app provides machinists and CNC operators with quick and reliable cutting speed and feed rate calculations. It helps reduce guesswork by offering practical starting points and allows users to save, reload, and refine setups for efficient shop floor work.
- Fast speeds and feeds calculator
- RPM, feed rate, and surface speed calculation
- Support for end mills and drills
- Material-aware defaults
- Save and reload reusable jobs
- One-tap share for setup communication
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Thank you for using Milling Calcs. Your skill and attention to detail make good machining possible, and we appreciate a place in your working day. From a quick spindle speed check to a customer tool trial, keep the numbers and notes you need close at hand. Milling Calcs brings CNC milling calculators, shop reference tables, job planning, and cutting-tool sales records together on iPhone and iPad. Use it at the machine, in the office, or during a customer visit. CALCULATE YOUR NEXT CUT • Find spindle RPM, cutting speed, feed rate, and chip load per tooth. • Calculate feed per revolution and estimate plunge feed. • Work with Imperial and Metric inputs where supported. • Plan milling jobs using material, cutter size, flute count, and cutting speed. • Check material removal rate for a proposed cut. • Estimate cutting force and tool deflection with the Cut Optimizer. • Explore depth and width of cut against an advisory deflection limit. • Share calculation results and return to saved milling jobs. KEEP SHOP MATH WITHIN REACH • Look up tap drills and work through thread engagement choices. • Calculate true position, sine bar height, arc length, and chord length. • Work out offsets, conduit bends, and shrinkage compensation. • Convert common shop measurements. • Browse drill sizes, pipe threads, material machinability, and tooling references. • Find G-code and M-code reference information without opening a browser. MAKE TOOL TRIALS EASIER TO EXPLAIN A promising cutter needs a useful comparison. Record the customer's current process, enter a proposed setup, and keep the evidence with the trial. • Compare baseline and proposed tooling costs. • Include tool life, cycle time, labor, setup time, and customer rates. • Review estimated cost per part and annual savings. • Record trial runs, observations, and photos. • Keep product specifications and price history together. • Carry price sources and effective dates into your comparisons. • Create and share PDF trial reports for the next customer discussion. STAY ON TOP OF THE NEXT CONVERSATION • Keep customer sites, applications, and local contacts organized. • Mark decision-makers and save sales notes. • Import selected iOS contacts, refresh linked details, or export contacts when you choose. • Track trials from baseline and scheduling through review, quote, won, or lost. • Record next actions, due dates, quote revisions, and first orders. • Open active trials, follow-ups, and quoted work from Today. • Set local reminders for follow-ups. • Estimate stock coverage and reorder timing from production, tool life, quantity, and supplier lead time. Reorder dates and savings are forecasts based on your entries, giving you a starting point for a conversation with the customer. KEEP USEFUL WORK FOR THE NEXT JOB • Search saved calculation, shop, and sales records from one Records workspace. • Organize tools, machines, materials, setup jobs, shop notes, and wear logs. • Review dated shop activity in Calendar. • Prepare setup sheets with the details needed for a repeat job. • Use available PDF, JSON, and QR sharing options. • Export sales summaries and transfer sales projects with photos and reports. • Preview imports before merging records. • Bring in product lists and customer price sheets from CSV files. Core calculators, reference data, and local records work without an account or network connection. Keep the details available when reception on the shop floor is limited. For monthly subscriptions: Monthly Pro is a 1-month auto-renewable subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ The app provides planning values and calculations, not a substitute for machining judgment. Confirm final cutting data against the tooling manufacturer's recommendations, machine limits, workholding, coolant, material condition, and the actual cut.
ParaGraph3D
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ParaGraph3D is a fast and visual graphing tool for exploring mathematical functions and parametric surfaces in three dimensions. Enter your equations, generate a surface instantly, and explore it from different angles. Rotate, zoom, pan, and tap to inspect 3D mathematical structures interactively. Key features: z = f(x,y) surface plotting x(t,s), y(t,s), z(t,s) parametric surfaces 44 built-in mathematical surfaces Isometric, front, side, and top views Perspective and orthographic cameras Surface, wireframe, and surface + grid modes Multiple color palettes Prism color gradient Adjustable mesh quality and opacity X, Y, and Z axes Tap-to-inspect coordinates Parameter sliders and animation Save and reuse graphs JSON import and export PNG image export Turkish and English language support iPhone and iPad support Fully on-device operation ParaGraph3D is designed for students, teachers, math enthusiasts, and anyone who wants to explore beautiful mathematical surfaces in 3D. No account required. No ads. No subscription.
Screenshots
Verdict
The clearest difference is price: Milling Calcs at Free against ParaGraph3D's $0.99. Milling Calcs also leads on update cadence (every 6 weeks vs every 9 months). ParaGraph3D's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement 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
Milling Calcs is free to download; ParaGraph3D costs $0.99 up front. Milling Calcs sells 2 in-app purchases, starting at $1.99 per month. ParaGraph3D asks for nothing beyond the download.
Milling Calcs ships an update every 6 weeks, ParaGraph3D every 9 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | Milling Calcs | ParaGraph3D |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks — better | Every 9 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Verosocial Studio | Mustafa Cans?z |
In-app purchases
Milling Calcs
- Milling pro monthly$1.991 Month
- Lifetime Pro Unlock$14.99
ParaGraph3D
No in-app purchases
Questions
Is Milling Calcs free?
Is ParaGraph3D free?
Do Milling Calcs or ParaGraph3D have ads?
Which is updated more often, Milling Calcs or ParaGraph3D?
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