Units vs Conversion Calculator Units
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Units
Easily convert between hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.
- Hundreds of units across 43 categories
- Daily updated currency exchange rates
- Hide unused units
- Reorder units and categories
- Universal app support (iPhone, iPod touch, iPad)
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Units is a really useful free app that lets you easily convert from various units into lots of others. Units can convert hundreds of units from 43 different categories including Speed, Time, Length, Volume, Area, Power, Temperature, Fuel Consumption, Shoe Sizes and loads more! Units is a fully universal app with native support for iPhones, iPod touches, and iPads. • Convert hundreds of units - Units has over 800 units across 43 different categories. • Convert currency - Units can convert between 88 different currencies, with rates updated daily. • Hide unused units - Units lets you hide units you don't use, allowing you to maintain a streamline conversion workflow. • Reorder both units and unit categories to suit your needs.
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
The clearest difference is rating: Conversion Calculator Units at 4.7 against Units's 3.6. Conversion Calculator Units also leads on review sentiment (82% vs 60%) and ratings volume (5K vs 150). Units's advantage is update cadence (monthly vs every 2 months) and iOS requirement (13.5 vs 15.0). 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. Units sells 3 one-off in-app purchases and Conversion Calculator Units sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Conversion Calculator Units holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 150, so its average is the more settled of the two. Written reviews point the same way: 60% of Units's written reviews are positive against 82% of Conversion Calculator Units's.
Units ships an update monthly, Conversion Calculator Units every 2 months. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.
| Parameter | Units | Conversion Calculator Units |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (150 ratings) | 4.7 (5K ratings) — better |
| Positive reviews | 60.0% of reviews | 82.1% of reviews — better |
| Number of ratings | 150 | 5K — better |
| Update frequency | Monthly — better | 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 | 13.5 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Homegrown Software Ltd | RV AppStudios LLC |
Customer experience
Units
Conversion Calculator Units
User reviews
Units
From 150 App Store ratingsWhat we love
- 🚀 Efficient and fast conversions
- 👍 Comprehensive list of units
- 🔍 Customizable unit selection
- 💰 Free app with optional paid version
- 🔧 Useful for engineering and technical work
Room to improve
- 🐛 Crashes and stability issues
- 🕰️ Outdated currency conversion rates
- 🔍 Too many unit categories, hard to navigate
- 💰 Ads in free version
- 📏 Ruler feature not accurate on some devices
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
Units
Reported bugs
4 issues- Crashes when clearing input fields
- Numerical keypad covers conversion results
- Incompatibility issues with newer iOS versions
- Ruler measurements not accurate on all devices
Requested features
5 requests- Add nautical units (miles, knots)
- Improve currency conversion accuracy and updates
- Allow customization of visible unit categories
- Add more clothing/shoe size conversions
- Improve user interface and search functionality
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
Units
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$4.99
Conversion Calculator Units
- Remove Ads$1.99
Questions
Is Units free?
Is Conversion Calculator Units free?
Which has better reviews, Units or Conversion Calculator Units?
Do Units or Conversion Calculator Units have ads?
Which is updated more often, Units or Conversion Calculator Units?
Other comparisons
