Unit Converter vs Night Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unit Converter
This app offers a comprehensive unit conversion tool with over 300 units across 27 categories. It supports compound units, date calculations, and conversions between various number systems, including historical units. The interface is designed for ease of use with smart keyboards and customizable display options.
- 27 conversion categories
- 300+ units
- Compound unit support
- Date calculator
- Fractions and number conversions
- Historical units
- Customizable interface
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Convert everything - 31 categories, 300+ units! Mila's Tools Unit Converter puts 31 converters in your pocket at no cost. Whether you need to convert temperatures for a recipe, check tire pressure in PSI, find your ring size across international standards, or calculate the days until a deadline, this app handles it all with precision and ease. What customers are saying: ***** "Get it! Nothing better than this!" ***** "This is the best quick ref tool I have come across to date" ***** "Undoubtedly the best conversion app in the App Store." ***** "Best app for me so far." ***** "Intuitive interface. The app design is so easy you'll actually use it." 31 CONVERSION CATEGORIES Angle · Area · Bits & Bytes · Blood Sugar · Capacitance · Cooking · Current · Data Transfer Rates · Dates · Density · Energy · Flow Rate · Force · Fractions · Frequency · Fuel Economy · Gauges · Illuminance · Length · Numbers · Power · Pressure · Ring Sizes · Shoes · Slope · Speed · Temperature · Time · Torque · Volume · Weight COMPOUND UNITS Work with real-world measurements like feet + inches, pounds + ounces, or gallons + quarts. Values auto-normalize — type 13 inches and see 1 foot 1 inch instantly. DATE CALCULATOR Find the exact number of days, weeks, months, and years between any two dates. Add or subtract time from a date with quick-action shortcuts like "90 Days from Today" or "End of Year." DATE CONVERTER See any date across 10 calendar systems — Gregorian, Islamic, Hebrew, Chinese, Persian, Indian National, Coptic, Ethiopic, Buddhist, and Japanese — plus Unix timestamps, Julian Day numbers, and ISO 8601 week dates. Tap the info icon for details on each calendar system. FRACTIONS & NUMBERS Convert between fractions, decimals, and percentages. Translate numbers into Roman numerals, binary, octal, and hexadecimal. Explore magnitudes from thousands to decillions. RING SIZES Convert between US, EU, Swiss, Japanese, Chinese (Mainland), and Hong Kong ring sizing standards. View inner diameter and circumference in millimeters for precise measurements. HISTORICAL UNITS Go beyond modern measurements with ancient Egyptian, Mesopotamian, Greek, Roman, and Biblical units of length. BUILT FOR PRECISION Choose automatic smart formatting or set manual decimal precision from 0 to 10 places. Locale-aware number formatting respects your region's separators and conventions. SMART CUSTOM KEYBOARDS Purpose-built keyboards for every input type — numeric, whole number, Roman numeral, binary, octal, and hexadecimal — so you never have to fight autocorrect. DESIGNED FOR YOU • Dark mode with rich, category-specific color themes • Comfortable or compact view styles • Show or hide any unit in any category • Available on iPhone, iPad, and Mac Download now and experience the most comprehensive unit conversion app available! - - - - - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Night Clock
This app displays a simple analog clock designed for low-light conditions, featuring customizable colors and an optional sweep second hand. It can automatically adjust brightness based on sunset and sunrise.
- Customizable analog clock face
- Multiple color options
- Automatic brightness adjustment
- Optional sweep second hand
- Easy-to-read in darkness
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Night Clock is the simplest analogue clock for your nightstand, designed to be easy on your eyes in darkness so you don't wake yourself up trying to figure out what time it is. Dim your display and use the default Classy Red face for the lowest light levels, get a little daring with Fizzy Orange, or blend in with your decor with Oak Brown. There are a dozen colour choices* to choose from. If you allow Night Clock to use your location, it will slowly dim the colours after sunset and return to full brightness by sunrise. Or, if you choose one of the new "night and day" schemes, the colour will change completely between night and day. This capability works best in conjunction with the iOS Auto-Brightness setting being on. (General > Accessibility > Display Accommodations.) And if you're just too wired to sleep, turn on the sweep second hand with a tap on the sweep button, or just press and hold on the face for 2 seconds. The sweep second hand will make two full revolutions and then slowly fade out. You might find that as it fades, so do you to restful sleep. * Original colour design by Andrew J. Clark.
Screenshots
Verdict
The clearest difference is price: Unit Converter at Free against Night Clock's $1.99. Unit Converter also leads on rating (4.8 vs 4.0) and review sentiment (88% vs 50%). Night Clock's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support 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
Unit Converter is free to download; Night Clock costs $1.99 up front. Unit Converter sells 3 in-app purchases, starting at $2.99 per month. Night Clock asks for nothing beyond the download.
Unit Converter holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Unit Converter has 1.5K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 88% of Unit Converter's written reviews are positive against 50% of Night Clock's.
Unit Converter ships an update weekly, Night Clock every 39 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | Unit Converter | Night Clock |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.8 (1.5K ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 87.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 1.5K — better | 1 |
| Update frequency | Weekly — better | Every 39 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Scott DeSapio | Allister Jenks |
Customer experience
Unit Converter
Night Clock
Bugs and requests
Unit Converter
Reported bugs
2 issues- Crashes or freezes on some devices
- Conversion results not displaying properly
Requested features
3 requests- Ability to customize order of conversion units
- Addition of more specialized units (e.g. astronomical distances)
- Improved scrolling functionality on all devices
Night Clock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Unit Converter
- Mila's Tools PRO Monthly$2.991 Month
- Mila's Tools PRO Yearly$6.991 Year
- Mila's Tools PRO Lifetime$9.99
Night Clock
No in-app purchases
Questions
Is Unit Converter free?
Is Night Clock free?
Which has better reviews, Unit Converter or Night Clock?
Do Unit Converter or Night Clock have ads?
Which is updated more often, Unit Converter or Night Clock?
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