Comparison

Codex Calc vs Calculate Note

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

Calculate Note

This calculator app records all your calculations with customizable names and comments. Easily find past calculations and share your notes directly with others. It helps you keep track of your financial entries beyond just numbers.

Highlights
  • Records all calculations
  • Customizable calculation names
  • Add comments to calculations
  • Quickly find calculation notes
  • Share calculation notes
Features
Read full description

Calculate Note is more than just a calculator — it's your personal calculation notebook that automatically records every calculation you make. Never lose track of your numbers again. Whether you're splitting a restaurant bill, calculating shopping discounts, managing household expenses, or figuring out tips, every calculation is saved with a name and timestamp for easy reference. KEY FEATURES: • Automatic Calculation History — Every calculation is recorded automatically • Custom Names — Name each calculation (defaults to date) for easy identification • Quick Search — Find any past calculation instantly • Share Directly — Export and share calculation notes with friends and family • Tip Calculator — Built-in tip sharing for restaurants and group dining • Smart Notes — Add comments and notes to any calculation Perfect for everyday use: shopping lists, budget tracking, expense sharing, tip calculations, and more. Download now and transform the way you calculate!

Screenshots

Codex Calc4 screens
Calculate Note4 screens

Verdict

The call

The clearest difference is review sentiment: Codex Calc at 100% against Calculate Note's 0%. Codex Calc also leads on rating (4.0 vs 1.0) and ads (none vs shown). Calculate Note's advantage is price (Free vs $0.99). On ratings volume, 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

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

ReceptionRating · Positive reviews · Number of ratings

Codex Calc holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of Codex Calc's written reviews are positive against 0% of Calculate Note's.

UpkeepUpdate frequency

Codex Calc ships an update every 6 months, Calculate Note every 18 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
Codex Calc versus Calculate Note: the parameters behind the verdict, then further details
ParameterCodex CalcCalculate Note
Price$0.99Free — better
Rating4.0 (1 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings11
Update frequencyEvery 6 months — betterEvery 18 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.6
Further details — not scored
Size11 MB5 MB
Age rating4+4+
DeveloperDriftwood Studio Software LLCCHI HAO CHIU

Customer experience

Codex Calc

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Calculate Note

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Codex Calc

No in-app purchases

None

Calculate Note

No in-app purchases

Questions

Is Codex Calc free?
Codex Calc costs $0.99, with no in-app purchases.
Is Calculate Note free?
Calculate Note is free to download, with no in-app purchases.
Which has better reviews, Codex Calc or Calculate Note?
Codex Calc is rated higher. Codex Calc averages 4.0 out of 5 from 1 ratings, while Calculate Note averages 1.0 from 1 ratings.
Do Codex Calc or Calculate Note have ads?
Calculate Note shows ads; Codex Calc does not.
Which is updated more often, Codex Calc or Calculate Note?
Codex Calc ships an update every 6 months, and Calculate Note every 18 months. Most recently, Codex Calc was updated on November 1, 2026 and Calculate Note on November 2, 2026.

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