Comparison

Electronic 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

Electronic

This comprehensive electronics reference and tool suite offers over 70 calculators, tables, and data for engineers, students, and hobbyists. It features a modern UI, iCloud sync, multi-window support, and PDF export, all accessible offline.

Highlights
  • Over 70 tools, tables, and references
  • Universal app for iPhone, iPad, and Mac
  • iCloud sync across devices
  • Multi-window support for parallel use
  • PDF export for results
  • Offline functionality
  • Modern UI with Dark Mode
Features
Read full description

Electronic Toolbox 2 – The classic, re‑imagined Since 2009, Electronic Toolbox has been one of the most comprehensive electronics references and toolboxes on the App Store—for professionals, students, makers, HAMs, and hobby engineers. With Electronic Toolbox 2, a fully modernized new edition arrives: familiar in structure, up to date technologically, and consistently evolved. # The best and most complete electronics app—now for iPhone, iPad & Mac Over 70 tools, tables, and references—from “A” like ASCII table to “Z” like Zener diode calculation: Everything you need in the lab, workshop, or lecture hall, in one place. • Universal app: One purchase—three platforms (iPhone, iPad, Mac) • iCloud sync: All settings and favorites automatically on all devices • Multi‑window support: Use multiple tools in parallel—ideal for comparisons • PDF export: Save, document, or share results • Pinned tools: Keep important tools always at hand • Interactive tools: New visualizations, e.g., in the Battery Charge tool • Modern UI with Dark Mode: Redesigned, clearly structured, and easy to read # Proven foundation, familiar workflow Electronic Toolbox 2 stays true to its heritage—all known tools are included and have been carefully revised. From calculators to reference data: nothing is missing, much is better. Examples: • Resistor color code and coil calculator • NE555 and heatsink calculation • Conversion and unit tools (HEX, AWG, frequency, and more) • Parametric component search with datasheets • Tables for batteries, drill sizes, IC pinouts, packages, and more • References for boards like Raspberry Pi, Arduino, BeagleBone, Nano Pi … • Global search across all tools • Fully usable offline • No ads, no in‑app purchases # Continuously improved—since 2009 Electronic Toolbox has been maintained and improved with passion for over a decade. With version 2, we carry this legacy forward—on a new technical foundation for the years ahead. Feedback from the community remains central: every suggestion helps make the toolbox even better. # Gentle transition The original Electronic‑Toolbox Pro remains fully usable—existing workflows are not interrupted. Existing customers can switch to the new version via a discounted bundle. Features like the Circuit Editor or Projects will initially remain exclusive to Electronic‑Toolbox Pro and are not yet included in this new edition. # From the developer Jan Roskosch built Electronic Toolbox 2 together with his father Marcus Roskosch, the developer of the original app. A modern realization of a classic—with the same passion for electronics, precision, and quality. # At a glance • Completely new, modern interface • All known tools from the original app included • Universal app for iPhone, iPad, and Mac • iCloud synchronization • PDF export & multi‑window support • Fully usable offline • No ads, no in‑app purchases ----- Electronic Toolbox 2—the future of the electronic toolbox. Continued with passion. Built for you.

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

Electronic4 screens
Keyword Highlighter3 screens

Verdict

The call

The clearest difference is price: Keyword Highlighter at $2.99 against Electronic's $9.99. Electronic's advantage is update cadence (fortnightly vs monthly). On ads, in-app purchases, device support and iOS requirement 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

Electronic costs $9.99 and Keyword Highlighter $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Electronic ships an update fortnightly, Keyword Highlighter monthly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Electronic versus Keyword Highlighter: the parameters behind the verdict, then further details
ParameterElectronicKeyword Highlighter
Price$9.99$2.99 — better
Rating2.3 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS18.517.6 — better
Further details — not scored
Size166 MB2 MB
Age rating4+4+
DeveloperMarcus Roskosch家贺 万

In-app purchases

None

Electronic

No in-app purchases

None

Keyword Highlighter

No in-app purchases

Questions

Is Electronic free?
Electronic costs $9.99, with no in-app purchases.
Is Keyword Highlighter free?
Keyword Highlighter costs $2.99, with no in-app purchases.
Do Electronic or Keyword Highlighter have ads?
Neither Electronic nor Keyword Highlighter shows ads.
Which is updated more often, Electronic or Keyword Highlighter?
Electronic ships an update fortnightly, and Keyword Highlighter monthly. Most recently, Electronic was updated on October 28, 2026 and Keyword Highlighter on October 25, 2026.

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