Comparison

Codex Calc vs CalcLink

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

Head to head
About

Codex Calc

This app offers a powerful yet intuitive calculator experience with a variety of modes including scientific, unit conversion, and tip calculation. It features a customizable interface and a detailed history tape for all your calculations.

Highlights
  • Full scientific calculator functions
  • Unit converter
  • Tip calculator
  • RPN mode
  • History tape
  • Customizable interface
  • Multiple visual themes
Features
Read full description

Codex Calc is the calculator for the rest of us: easy and intuitive, without sacrificing power and capabilities. Calculator • Unit Converter • Tip Calculator • RPN Mode • Full Scientific • History Tape All the power you need, wrapped in a beautifully designed interface that's simple without being simplistic. ADAPTS TO YOU Do you like big buttons, or small? Like minimalist interfaces, or are you a fan of bright and flashy? Prefer small fonts to see more detail, or big text and easy to read buttons? Codex Calc adapts itself to the way *you* like to work. FEATURES Everything you'd expect, plus: • History tape records all entries and calculations • Full suite of standard and scientific calculator functions • Unit conversion mode for forward and reverse conversions • Full tip calculator mode - taxes, tip, per-person amounts • RPN mode fully integrated • Rotation lock and sound on/off toggles • Seven different professionally designed visual themes • Multi-number memory and full set of memory-store operators • Full control over history tape font size • Single and multiple-line history tape formats • Large and small button sizes • Settings for customization (number formatting, behavior of clear key, display of calculation details, much more) Calculations: • Trig functions in degrees and radians • Log and power/exponentials • Scientific notation / exponent mode • Rounding and truncating • Random number generation • Parenthesis and sub-expressions ...and more! INTUITIVE TOUCH INTERFACE Take full advantage of your device's capabilities: • Overlays - rather than making buttons smaller to fit more, Codex Calc uses intuitive overlays on the existing buttons. • Popup Menus - hidden until you need them, pop-up context menus give you more power when the default action isn't quite what you need. • Zoomable History Tape - Tap the history tape to expand for more detail, change the font size, copy contents to clipboard, or forward as an email. View as single-lines to save space, or use multi-line view for more detail. • Multiple Flexible Layouts - Portrait and landscape, large and small buttons, and seven different graphical themes. • Easy-Touch Everything - Codex Calc's entire design approach revolves around "touch to activate." Tap the tape to see it bigger, swipe to scroll, long-press a button for more options, tap the display to copy or paste, etc.

About

CalcLink

Features
Read full description

1. Key Features CalcLink - Calculator for Windows is a calculator app that lets you quickly send calculation results from your iPhone or iPad to a Windows PC, and also use your device as a numpad-style input helper. Instead of stopping at calculation, CalcLink helps you enter results directly into Windows or use your iPhone or iPad as a simple input pad. It is useful for spreadsheets, accounting software, browser forms, and other PC tasks that involve frequent numeric input. 2. Overview CalcLink works as a standard calculator, and by connecting with the Windows app Koyomi-Link, it can send calculation results and numpad input to your Windows PC. You can choose between Direct Input and Copy and Paste sending modes. You can also add Enter or Tab after sending a value, making repetitive data entry smoother. Even without Windows integration, CalcLink can be used as a regular calculator and scientific calculator. 3. Feature List - Standard calculator - Scientific calculator - Tax included / tax excluded calculation - Memory functions - Send calculation results to Windows - Direct Input / Copy and Paste sending modes - Enter / Tab after sending - Numpad-style Windows input helper - Tab / Enter / Backspace / Delete / arrow keys - Copy / Paste operations - Japanese and English support 4. Feature Details ■ Standard Calculator CalcLink provides a simple and easy-to-use calculator for everyday arithmetic. It also supports tax included / tax excluded calculation and memory functions, making it useful for shopping, office work, and accounting tasks. ■ Scientific Calculator In addition to standard calculation, CalcLink includes a scientific calculator mode. You can switch modes within the same app when you need more advanced calculations. ■ Send Results to Windows By connecting with Koyomi-Link, CalcLink can send calculation results to your Windows PC. You can choose between Direct Input and Copy and Paste sending modes. ■ Enter / Tab After Sending CalcLink can automatically add Enter or Tab after sending a calculation result. This is useful when you want to send a value and move to the next cell or input field in spreadsheets, accounting software, or forms. ■ Numpad-Style Windows Input Helper The numpad tab lets you send numbers and symbols to Windows. It also supports Tab, Enter, Backspace, Delete, arrow keys, Copy, and Paste, allowing your iPhone or iPad to work as a simple numpad and input helper. 5. Summary CalcLink - Calculator for Windows is designed for users who want to calculate at hand and quickly enter the result into a Windows PC. You can use it as a regular calculator, and enable Windows integration or numpad input support when needed. It is recommended for anyone who wants to make numeric input during PC work smoother and faster. Note: Windows integration requires the separate Windows app Koyomi-Link.

Screenshots

Codex Calc4 screens
CalcLink3 screens

Verdict

The call

The clearest difference is price: CalcLink at Free against Codex Calc's $0.99. CalcLink also leads on update cadence (every 6 days vs every 6 months). Codex Calc's advantage is iOS requirement (12.0 vs 17.0). 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

CostPrice · In-app purchases · Ads · Monetization

CalcLink is free to download; Codex Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Codex Calc ships an update every 6 months, CalcLink every 6 days. The most recent releases landed on October 23, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 7 level
Codex Calc versus CalcLink: the parameters behind the verdict, then further details
ParameterCodex CalcCalcLink
Price$0.99Free — better
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 6 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size11 MB1 MB
Age rating4+4+
DeveloperDriftwood Studio Software LLCSatoshi Sakuma

In-app purchases

None

Codex Calc

No in-app purchases

None

CalcLink

No in-app purchases

Questions

Is Codex Calc free?
Codex Calc costs $0.99, with no in-app purchases.
Is CalcLink free?
CalcLink is free to download, with no in-app purchases.
Do Codex Calc or CalcLink have ads?
Neither Codex Calc nor CalcLink shows ads.
Which is updated more often, Codex Calc or CalcLink?
Codex Calc ships an update every 6 months, and CalcLink every 6 days. Most recently, Codex Calc was updated on October 23, 2026 and CalcLink on October 18, 2026.

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