Units vs CraftCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Units
Easily convert between a wide range of measurement units and currencies. Features a clear and simple interface for quick conversions of length, mass, volume, speed, and more. Supports popular currencies and common units for everyday use.
- Extensive unit conversions
- Multiple currency support
- Easy and clear handling
- Converts length, mass, volume
- Supports speed, area, pressure
- Converts time and temperature
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Unit converter with many different units of measurement and currencies. Very easy handling. Clearly arranged. The most important units are amongst others: - Currencies: United States dollar, Euro, Japanese yen, Pound sterling - Length: Mile, kilometer, meter, inch - Mass: Kilogram, pound, ounce, gram - Volume: Liter, gallon (several) - Speed - Area - Units of information - Pressure - Power - Time - Temperature Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
CraftCalc
This app simplifies fractional and mixed-number calculations for makers, woodworkers, and builders. It offers seamless fraction arithmetic and precision measurement tools with an easy-to-use interface. Supports both inches and metric units for accurate project planning.
- Fractional addition, subtraction, multiplication, division
- Precision measurement tools for length
- Intuitive and fast user interface
- Inches and metric unit conversion
- Support for mixed numbers
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**Measure Twice, Calculate Once: The Simple Fraction Calculator for Makers** Take the guesswork out of your measurements! Designed specifically for woodworkers, carpenters, builders, and DIY makers, CraftCalc is the calculator you need for fractional and mixed-number calculations. **Key Features:** - Seamless Fraction Support:** Add, subtract, multiply, and divide fractions without converting to decimals. - Precision Measurement Tools:** Tailored for length calculations commonly used in woodworking and construction. - Easy-to-Use Interface:** No fluff, just the tools you need to get accurate results fast. - Inches & Metric Conversions:** Switch effortlessly between standard and metric systems. Whether you’re crafting fine furniture or tackling a weekend project, CraftCalc ensures every cut is perfect. Stop wasting time on errors—start creating with confidence. **Download now and make your next project your best one yet!**
Screenshots
Verdict
Units and CraftCalc both sit at 4.9 stars, but that hides the real split: 100% of CraftCalc's written reviews are positive against 45% of Units's. CraftCalc also leads on in-app purchases (none vs 3). Units's advantage is price (Free vs $3.99) and ratings volume (262 vs 2). On rating, ads 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
Units is free to download; CraftCalc costs $3.99 up front. Units sells 3 in-app purchases, starting at $0.99 per month. CraftCalc asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Units against 5.0 for CraftCalc. That said, the two scores are not equally well evidenced: Units has 262 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 45% of Units's written reviews are positive against 100% of CraftCalc's.
Units ships an update every 5 weeks, CraftCalc every 5 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.
| Parameter | Units | CraftCalc |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.9 (262 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 45.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 262 — better | 2 |
| Update frequency | Every 5 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.3 |
| Further details — not scored | ||
| Size | 3 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Andreas Maier | Yong Tze Chi |
Customer experience
Units
CraftCalc
In-app purchases
Units
- Monthly7 Days trial$0.991 Month
- Yearly7 Days trial$4.991 Year
- One time purchase$9.99
CraftCalc
No in-app purchases
