Comparison

Kalkulilo (Calculator) vs Keyword Highlighter

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

Head to head
About

Kalkulilo (Calculator)

This app offers a versatile calculator with multiple modes, including scientific, bitwise, statistical, trigonometric, base conversion, and time calculations. It features a simple mode with large buttons and customizable interface. Widgets for notification center and Apple Watch are also included.

Highlights
  • Scientific calculator functions
  • Bit/integer mode with logical operations
  • Statistical calculations
  • Base/radix conversion (2-36)
  • Time value calculations
  • Customizable interface
  • Apple Watch app and widget
Features
Read full description

Kalkulilo is a comfortable calculator program and offers several different modes. - The scientific mode offers all the usual functions and operations like the basic arithmetical operations, power, logarithm, roots, trigonometry etc. - The bit/integer mode offers logical operations (AND, OR, XOR, >>, etc.) on bit level. All values can be displayed as binary, octal, decimal or hexadecimal numbers. Calculations can be done in 8, 16 32 or 64 bits. - In the statistics mode you can create a sample by adding several values and then calculate mean, median, quantil values, variance, standard deviation, range etc. - Trigonometry mode provides lots of trigonometric functions, including legacy ones - The base/radix mode allows you to do calculations with numbers of base 2 to base 36 - The Time mode lets you directly work with time values (hours, minutes seconds) - A simple calculator is also included, with just the basic operators and large buttons. The user interface can be customized, you can change the key colors for different categories of functions and operators which helps to distinguish and find these more easily. The App also includes calculator widgets for the homescreen which allows to do calculations directly from your homescreen and a calculator for the Apple Watch.

About

Keyword Highlighter

Features
Read full description

Stop hitting Ctrl+F repeatedly. Transform your Safari browsing experience with the ultimate multi-keyword finder. MultiHighlight is a powerful productivity extension designed for researchers, students, and analysts. It allows you to input multiple keywords and automatically highlights them in different, vibrant colors across any webpage. Instantly spot what matters most in long articles or complex data tables. 【 KEY FEATURES 】 Smart Multi-Color Highlighting Search for unlimited keywords simultaneously. The app automatically assigns a distinct, random vibrant color to each new keyword, ensuring maximum contrast and readability. Auto-Load & Persistence Set it and forget it. Your keywords are saved locally. Whenever you visit a page containing your terms, they are highlighted instantly—no need to click "search" every time. Two Visual Modes Switch globally between two professional styles to suit your workflow: Background Mode: Classic marker style (like a highlighter pen) for quick scanning. Text Mode: Changes font color with bold underlining for a cleaner, distraction-free reading experience. Real-Time Updates Add, remove, or change keywords on the fly. The current webpage updates instantly to reflect your changes without needing to reload. Privacy First As a native Safari Extension, your data stays on your device. We do not track your browsing history or collect personal data. PERFECT FOR: Research: Tracking multiple topics in academic papers. Analysis: Spotting specific data points in reports. Skimming: Quickly finding relevant sections in long news articles. Download MultiHighlight today and find what you are looking for—faster.

Screenshots

Kalkulilo (Calculator)4 screens
Keyword Highlighter3 screens

Verdict

The call

The clearest difference is in-app purchases: Keyword Highlighter at none against Kalkulilo (Calculator)'s 1. 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

Kalkulilo (Calculator) costs $2.99 and Keyword Highlighter $2.99 up front. Kalkulilo (Calculator) sells 1 one-off in-app purchase. Keyword Highlighter asks for nothing beyond the download.

UpkeepUpdate frequency

Kalkulilo (Calculator) ships an update every 2 months, Keyword Highlighter monthly. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 9 level
Kalkulilo (Calculator) versus Keyword Highlighter: the parameters behind the verdict, then further details
ParameterKalkulilo (Calculator)Keyword Highlighter
Price$2.99$2.99
Rating4.5 (29 ratings) — better—
Positive reviews75.8% of reviews—
Number of ratings29 — better—
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Mac
Requires iOS16.0 — better17.6
Further details — not scored
Size3 MB2 MB
Age rating4+4+
DeveloperAlexander Clauss家贺 万

Bugs and requests

Kalkulilo (Calculator)

Reported bugs

3 issues
  • Number doesn't transfer correctly when switching between modes
  • Negative exponents not displayed correctly in engineering notation
  • Loses calculation history when changing modes

Requested features

5 requests
  • Add calculus, linear algebra, and probability functions
  • Implement a 'repeated equals' function
  • Add a backspace/delete button
  • Allow customizing color scheme
  • Improve Apple Watch integration

Keyword Highlighter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Kalkulilo (Calculator)

One-time1
  • Remove Ads$0.99
None

Keyword Highlighter

No in-app purchases

Questions

Is Kalkulilo (Calculator) free?
Kalkulilo (Calculator) costs $2.99, and also offers in-app purchases.
Is Keyword Highlighter free?
Keyword Highlighter costs $2.99, with no in-app purchases.
Do Kalkulilo (Calculator) or Keyword Highlighter have ads?
Neither Kalkulilo (Calculator) nor Keyword Highlighter shows ads.
Which is updated more often, Kalkulilo (Calculator) or Keyword Highlighter?
Kalkulilo (Calculator) ships an update every 2 months, and Keyword Highlighter monthly. Most recently, Kalkulilo (Calculator) was updated on November 10, 2026 and Keyword Highlighter on November 5, 2026.

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