Unit Converter HD. vs Convertology
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unit Converter HD.
Easily convert over 700 units across 30 categories with this powerful tool. It offers a user-friendly interface, dark mode support, and a backspace key for quick corrections. Save time on all your measurement conversion needs.
- 700+ Units of Measure
- 30 Conversion Categories
- Easy-to-Use Interface
- Dark Mode Support
- Backspace Key
Read full descriptionHide full description
The most powerful unit converter in the market. Helps you make easy conversion between more than 700+ various units of measure in 30 categories. Discover a universal assistant for all of your unit conversion needs. Features: √ 30 Categories √ 700+ Units of Measure √ Backspace key √ Extremely Easy-to-Use √ Supports Dark Mode Save Your Time. Quickly & Easily! Universer Unit Converter Free HD URL scheme is "EWUnitConverterFree://"
Convertology
This utility app offers precise unit conversions across a vast range of categories, from everyday measurements to specialized scientific and engineering units. It features a clean interface with quick search, favorites, history, and adjustable precision for efficient use in various settings.
- Extensive unit categories
- Quick unit search
- Favorites and history
- Adjustable result precision
- Light and dark mode interface
- Copy and share results
Read full descriptionHide full description
Convertology is a modern unit converter built for speed, clarity, and high-precision results. Convert everyday measurements and specialized units across length, area, volume, weight, temperature, time, speed, pressure, energy, power, data, cooking, currency, clothing sizes, medical lab values, binary, hexadecimal, astronomy, engineering, science, and more. Designed for real use: - Search units quickly with localized names - See helpful unit explanations directly on the conversion screen - Save frequent conversions to Favorites - Reopen recent work from History - Adjust result precision when you need more detail - Copy or share results when you need them elsewhere - Use a polished iPhone interface with light and dark mode - Work across hundreds of units and thousands of conversion paths Convertology is useful in the kitchen, while traveling, at school, at work, in the lab, or anywhere a quick and reliable conversion saves time. The interface stays focused on the conversion itself, with clear inputs, readable results, and unit information that helps you understand what you are converting. Convertology is free to use with ads. Prefer an ad-free experience? Remove ads permanently with a one-time purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.strujiclabs.com/privacy
Screenshots
Verdict
The clearest difference is rating: Unit Converter HD. at 4.7 against Convertology's 4.0. Unit Converter HD. also leads on ratings volume (644 vs 1) and device support (3 vs 1). Convertology's advantage is update cadence (every 6 days vs every 2 months). On price, ads, in-app purchases and monetization model 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
Both are free to download. Unit Converter HD. sells 1 one-off in-app purchase and Convertology sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Unit Converter HD. holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Unit Converter HD. has 644 ratings behind it against 1, so its average is the more settled of the two.
Unit Converter HD. ships an update every 2 months, Convertology every 6 days. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.
| Parameter | Unit Converter HD. | Convertology |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (644 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 93.8% of reviews | — |
| Number of ratings | 644 — better | 1 |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 86 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | 良峰 侯 | ADNAN STRUJIC |
Customer experience
Unit Converter HD.
Convertology
Bugs and requests
Unit Converter HD.
Reported bugs
2 issues- Freezing or crashing on some devices
- Display issues with certain units
Requested features
3 requests- Add support for US weights (tons, lbs., oz.)
- Implement portrait mode support
- Provide more customization options
Convertology
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Unit Converter HD.
- Remove Ads Pack$1.99
Convertology
- Weekly Premium$3.997 Days
- Yearly Premium$29.991 Year
Questions
Is Unit Converter HD. free?
Is Convertology free?
Which has better reviews, Unit Converter HD. or Convertology?
Do Unit Converter HD. or Convertology have ads?
Which is updated more often, Unit Converter HD. or Convertology?
Other comparisons
