Kalkulilo (Calculator) vs Keyword Highlighter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Keyword Highlighter
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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
Verdict
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
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.
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.
| Parameter | Kalkulilo (Calculator) | Keyword Highlighter |
|---|---|---|
| Price | $2.99 | $2.99 |
| Rating | 4.5 (29 ratings) — better | — |
| Positive reviews | 75.8% of reviews | — |
| Number of ratings | 29 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander 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
Kalkulilo (Calculator)
- Remove Ads$0.99
Keyword Highlighter
No in-app purchases
Questions
Is Kalkulilo (Calculator) free?
Is Keyword Highlighter free?
Do Kalkulilo (Calculator) or Keyword Highlighter have ads?
Which is updated more often, Kalkulilo (Calculator) or Keyword Highlighter?
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