Unit Converter HD. vs Conversion Calculator Units
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
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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://"
Conversion Calculator Units
This app offers a simple and powerful way to convert between over 140 units across 12 categories. Easily switch between units, customize your experience with themes, and share your results.
- Converts over 140 units
- Supports 12 conversion categories
- Customizable themes
- Drag and set unit positions
- Add units to favorites
- Share converted units via email
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* Handy Conversion Calculator App For 12 Categories & 140+ Units * Simple, Powerful & Conversion Calculator app designed for iPhone and iPad! Just tap and convert any units with its clean interface and user-friendly navigation. Simple swipe actions will allow you to convert quickly and change conversion options easily for additional convenience. Download the fastest & easiest to use converter app today! Conversions from one unit to another unit no longer have to be confusing, simply use Best Unit Converter today. * Features: - Ability To Change Themes - Drag & Set Position Of Units - Add Units To Favorites Section - Restore Category Listing - Enable/Disable Units - Set Decimal Digit Count - Share Converted Units by Email ** Conversion (12 Categories & 140+ Units): - Area - Length - Energy - Volume - Weight - Power - Speed - Time - Number - Temperature - Data Storage - Fuel Consumption Conversion Calculator is a beautifully designed universal app, designed for both iPhone & iPad. Get the best easy to use metric and units converter for length, number, power, speed, temperature, time, weight, area, energy, and other popular measurement converters tool. Download free. ************************************************************* * Download Conversion Calculator Today! * * Be Sure To Checkout Other Popular Utilities & Games From RV AppStudios! * *************************************************************
Screenshots
Verdict
Unit Converter HD. and Conversion Calculator Units both sit at 4.7 stars, but that hides the real split: 94% of Unit Converter HD.'s written reviews are positive against 82% of Conversion Calculator Units's. Unit Converter HD. also leads on iOS requirement (13.0 vs 15.0). Conversion Calculator Units's advantage is ratings volume (5K vs 644). On price, rating, update cadence and ads 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 Conversion Calculator Units sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Unit Converter HD. against 4.7 for Conversion Calculator Units. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 644, so its average is the more settled of the two. Written reviews are what separate them: 94% of Unit Converter HD.'s written reviews are positive against 82% of Conversion Calculator Units's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 29, 2026 and October 13, 2026 respectively.
| Parameter | Unit Converter HD. | Conversion Calculator Units |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (644 ratings) | 4.7 (5K ratings) |
| Positive reviews | 93.8% of reviews — better | 82.1% of reviews |
| Number of ratings | 644 | 5K — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 86 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | 良峰 侯 | RV AppStudios LLC |
Customer experience
Unit Converter HD.
Conversion Calculator Units
User reviews
Unit Converter HD.
From 644 App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Handy and convenient
- 💡 Comprehensive set of conversions
- 🚀 Very useful app
- 👍 Intuitive design
Room to improve
- 🐛 Occasional crashes or freezing issues
- 💡 Could be more intuitive for some users
- 🔒 Requires horizontal orientation
Conversion Calculator Units
From 5K App Store ratingsWhat we love
- 👍 User-friendly
- 🚀 Easy to use
- 💡 Helpful for learning metric system
- 👍 Great for conversions
- 👍 Intuitive interface
Room to improve
- 🐛 Ads disrupt usage
- 🐛 Difficult to change units
- 🐛 Lacks portrait mode
- 🐛 Upside-down orientation issues
- 🐛 Cluttered UI design
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
Conversion Calculator Units
Reported bugs
2 issues- Ads not removed after purchase
- Incorrect unit conversions
Requested features
4 requests- Add pressure conversion units
- Include a basic calculator function
- Implement multi-language support
- Allow customization of unit order
In-app purchases
Unit Converter HD.
- Remove Ads Pack$1.99
Conversion Calculator Units
- Remove Ads$1.99
Questions
Is Unit Converter HD. free?
Is Conversion Calculator Units free?
Which has better reviews, Unit Converter HD. or Conversion Calculator Units?
Do Unit Converter HD. or Conversion Calculator Units have ads?
Which is updated more often, Unit Converter HD. or Conversion Calculator Units?
Other comparisons
