Calc Engine vs KMT TracerX Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calc Engine
A highly customizable calculator with advanced features like graphing, equation solving, and unit conversion. Design your own keyboards and functions to streamline your workflow across Apple devices.
- Customizable keyboard layouts
- User-defined functions and constants
- Live equation graphing
- Equation solving
- Extensive unit conversions
- Programmer mode (hex, binary, octal)
- Cross-device syncing
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Calc Engine™ — The Calculator That Fits How You Work Whether you're splitting a dinner bill, plotting an equation, or working through bitwise logic, Calc Engine meets you where you are. It's a beautiful, fully customizable calculator that grows with you — and syncs seamlessly across iPhone, iPad, Mac, and Apple Watch. Make it look and feel like yours • Choose from rich color themes to match your style • Pick the fonts and key shapes that feel right in your hands • A calculator you actually enjoy opening Design keyboards your way • Build your own keyboard pages — drag any key from a curated library onto a 4×5, 5×5, or 6×5 grid • Mix digits, operators, scientific functions, your own constants — anything you reach for often, all in one place • Set a long-press alternate on any key so a single tile handles a primary and secondary action • Name each keyboard, pick its icon, and reorder it alongside the standard pages — your custom keyboards show up right where you'd expect them • Enable or disable any page (built-in or custom) per device Build your personal math library • Define your own functions with up to three parameters — name them whatever makes sense to you • Save the constants you use all the time and insert them with a single tap • Full calculation history, automatically saved — scroll back anytime Powerful math, always within reach • Trig (radians or degrees), logarithms, exponentials, roots, and more — there when you need them, out of the way when you don't • Live results as you type, so you always know where you're headed • Per-function rounding built in — perfect for money, measurements, or anything that needs a clean output Convert between hundreds of units in seconds • Tap a value, then any two units to see the conversion live — miles to km, lb to kg, °F to °C, gal to L, anything you need • 250+ built-in units across 40+ categories: length, mass, volume, temperature, time, speed, angle, energy, power, pressure, electrical, magnetic, optical, radioactivity, data, and more • Favorite the categories you actually use so they sit at the top — synced across your devices automatically • Build your own functions with conversions baked in — define a formula once and reuse it forever See your equations come to life in graphs • Plot equations like x = y² or sin(x) live as you type, right beside the keyboard • Tap any graph to expand into a full-screen view for closer inspection • A dedicated graphing keyboard with x, y, and = keeps everything in one place — no separate app, no separate mode Solve equations as you type • Type x² = 121 or sin(x) = 0.5 and Calc Engine finds every real answer • Tap the solved answers to reuse it in your next calculation, no separate "solve" mode Programmer mode without leaving the calculator • Type hex (0x), binary (0b), and octal (0o) literals — read and write the way you read code • A full bitwise toolkit: AND, OR, XOR, NOT, shifts, and rotates • Every result shown in HEX, DEC, OCT, and BIN simultaneously, with configurable word size (8/16/32/64) and signed/unsigned interpretation • Tap the binary row to expand into a byte-by-byte view with bit-position labels Private by design • Everything syncs through your personal iCloud — nothing stored on our servers • Fully localized and native on every Apple platform Unlock Calc Engine+ for the full experience — custom themes, fonts, key shapes, custom keyboards, user-defined functions, saved constants, unit conversions, live graphing, equation solving, programmer-mode hex/binary/bitwise, and more. Everything that makes Calc Engine truly yours. Teach it your formulas once. Customize it to feel like home. Use it forever.
KMT TracerX Pro
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KMT TracerX Pro is a low-latency, user-friendly mobile application that allows users to stream, record, search, and control IP cameras over Wi-Fi or Data connections from anywhere, anytime with KMT TracerX VMS. KMT TracerX - discover and manage 99% of IP cameras today! --- FEATURES --- • CONNECT - via Wi-Fi or Data connection to local, remote, or Cloud connected Sites. • VIEW - live thumbnails, live video, archived video, and layouts • SEARCH - using keywords, the calendar, the flex timeline, or Smart Motion • CONTROL - PTZ cameras, Dewarp Fisheye Lenses, 2-Way Audio, Soft Triggers, Bookmarks, Analytic Objects, and more. • GET NOTIFIED - Programmable push notifications.
Screenshots
Verdict
The clearest difference is in-app purchases: KMT TracerX Pro at none against Calc Engine's 1. KMT TracerX Pro also leads on iOS requirement (16.0 vs 18). Calc Engine's advantage is update cadence (daily vs every 2 months) and device support (4 vs 2). On price and ads 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. Calc Engine sells 1 one-off in-app purchase. KMT TracerX Pro asks for nothing beyond the download.
Calc Engine ships an update daily, KMT TracerX Pro every 2 months. The most recent releases landed on October 28, 2026 and October 26, 2026 respectively.
| Parameter | Calc Engine | KMT TracerX Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Number of ratings | 5 — better | — |
| Update frequency | Daily — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad |
| Requires iOS | 18 | 16.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 138 MB |
| Age rating | 4+ | 4+ |
| Developer | VersaEdge Software, LLC | KMT GmbH |
In-app purchases
Calc Engine
- Calc Engine+$9.99
KMT TracerX Pro
No in-app purchases
Questions
Is Calc Engine free?
Is KMT TracerX Pro free?
Do Calc Engine or KMT TracerX Pro have ads?
Which is updated more often, Calc Engine or KMT TracerX Pro?
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