Comparison

Shift Unit vs Nad

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Shift Unit

This utility app offers precise unit and currency conversions with over 1400 units across 34 categories. It supports light/dark modes, home widgets, and an independent Apple Watch app. Features include a custom keypad with calculator mode and educational Wikipedia integration.

Highlights
  • 1400+ conversion units
  • 34 categories
  • Light/dark mode support
  • Home widget
  • Apple Watch app
  • Custom keypad with calculator
  • Wikipedia integration
Features
Read full description

Shift Unit is a unit converter designed with usability and numerical precision in mind. It features 1400+ conversion units across 34 categories. It works great in light or dark mode, and as a Home Widget w/ localized number displays. Independent WatchOS app and complications. Operations can be carried out in portrait mode in simple precision (7 significant digits,) or in landscape mode in double precision (14 significant digits.) Conversion formulae use exact definitions of related entities--not approximations. Wikipedia page information can be pulled for categories and conversion units. (Look for info circle.) The custom keypad has a calculator mode, and allows to enter/edit numbers on either side of the conversion. Unit categories include Acceleration, Angle, Area, Bit Rate, Clock, Online Currencies, Data Storage, Area Density, Volumetric Density, Electric Charge, Electric Current, Energy, Volumetric Flow Rate, Force, Frequency, Fuel, Length, Luminance, Lux, Mass Flow Rate, Momentum, Power, Pressure, Radiation Dose, Radioactivity, Radiation Exposure, Speed, Temperature, Temperature Delta, Time, Torque, Typography, Volume, and Weight. Features: - One screen operation minimizing number of gestures - Numbers (digits, decimal/grouping separators, exponent)/time/country names localized to your (or any) region - Current time in 2 out of 439 world cities and see your cities pinned on a flyover map, an educational way of discovering the world through time zones - Weather conditions and forecast for time zone cities - Dedicated accessibility labels and hints for VoiceOver operations - Customizable number entry timeout allowing to enter a new number without having to clear the field. (Turned off when an accessibility feature, e.g. VoiceOver, is on) - Customizable user interface (preferred categories; user interface alignment for left/right-handed entry or 2-thumb operations) - Ability to swap units while keeping initial numerical entry - Category presets for quick change of context, including user preset - Long-press category button to remove, or add a category on the fly - Long-press number field for copy/paste - Paste Mathematical constants (Pi, e, etc.) - Education via Wikipedia pages for categories and conversion units - Currency conversions using online rates - Searchable list of currency rates with possibility to change base rate - Set favorite currencies - Built-in numeric keypad (with calculator mode) to enter numbers on either side of the conversion - Long-press delete key to clear the field in focus - Engineering number format handling - Infinity and negative numbers handling - 7 or 14-digit precision displays (3-digit fractions for currencies) - Searchable list of 1400+ conversion units across 34 categories - On-boarding screens for general operations and for the Currency category (turned off when VoiceOver is on) - Home widget for quick conversions using units selected in the hosting app Happy Conversions!

About

Nad

Enhance your browsing with a powerful ad blocker for Safari. Enjoy a cleaner, faster, and more private online experience across all your Apple devices. It seamlessly integrates with Safari to remove unwanted ads and trackers.

Highlights
  • Cross-platform support
  • Enhanced privacy
  • Faster browsing
  • Seamless Safari integration
  • Utilizes Eyed-Blocklist
Features
Read full description

Nad: The Powerful Ad Blocker for Safari Get the most out of your Safari experience with Nad, the lightweight ad blocker designed by Aemi Studio and Aploide. Enjoy a cleaner, faster, and more private browsing experience across iPhone, iPad, Mac, and VisionOS devices. Key Features: • Cross-Platform Support: Access Nad on all your Apple devices for seamless protection. • Enhanced Privacy: Block unwanted trackers to safeguard your online identity. • Faster Browsing: Experience lightning-fast loading times by eliminating resource-heavy ads. • Seamless Integration: Nad effortlessly integrates with Safari without compromising performance. Blocklist: Nad utilizes the Eyed-Blocklist crafted by Aploide, a comprehensive blocklist designed to enhance your browsing experience, removing most of the ads and trackers without being intrusive with your navigation. Get Started: 1. Install Nad from the App Store (iPhone/iPad) or Mac App Store (Mac). 2. Enable the ad blocker in Safari settings. 3. Enjoy an ad-free browsing experience! Follow Us: Stay updated with the latest features and announcements by following Aemi Studio and Aploide on social media: GitHub: Aemi Studio - https://github.com/Aemi-Studio GitHub: Aploide - https://github.com/aploide License: Nad is an open-source project licensed under Mozilla Public License 2.0 (MPL 2.0). See more at https://github.com/Aemi-Studio/Nad Contact us: If you have questions or feedback, feel free to reach out: - Aemi Studio: feedback@aemi.studio - Aploide: yo@aploi.de

Screenshots

Shift Unit4 screens
Nad4 screens

Verdict

The call

The clearest difference is rating: Shift Unit at 5.0 against Nad's 4.2. Shift Unit also leads on ratings volume (21 vs 6). Nad's advantage is update cadence (weekly vs every 2 months). On price, review sentiment, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Shift Unit holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 21 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Shift Unit ships an update every 2 months, Nad weekly. The most recent releases landed on September 6, 2026 and August 3, 2026 respectively.

Scorecard3 real differences · 7 level
Shift Unit versus Nad: the parameters behind the verdict, then further details
ParameterShift UnitNad
PriceFreeFree
Rating5.0 (21 ratings) — better4.2 (6 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings21 — better6
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, Apple WatchiPhone, iPad, Mac — better
Requires iOS16.0 — better17.0
Further details — not scored
Size20 MB6 MB
Age rating4+4+
DeveloperDidier BurtonGuillaume Coquard

Customer experience

Shift Unit

All ratings21 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Nad

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Shift Unit

No in-app purchases

None

Nad

No in-app purchases

Questions

Is Shift Unit free?
Shift Unit is free to download, with no in-app purchases.
Is Nad free?
Nad is free to download, with no in-app purchases.
Which has better reviews, Shift Unit or Nad?
Shift Unit is rated higher. Shift Unit averages 5.0 out of 5 from 21 ratings, while Nad averages 4.2 from 6 ratings.
Do Shift Unit or Nad have ads?
Neither Shift Unit nor Nad shows ads.
Which is updated more often, Shift Unit or Nad?
Shift Unit ships an update every 2 months, and Nad weekly. Most recently, Shift Unit was updated on September 6, 2026 and Nad on August 3, 2026.

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