Shift Unit vs Metrics for Product Zone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 1400+ conversion units
- 34 categories
- Light/dark mode support
- Home widget
- Apple Watch app
- Custom keypad with calculator
- Wikipedia integration
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Shift Unit is a unit converter designed with usability and numerical precision in mind. It features 1437+ 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!
Metrics for Product Zone
This app helps Apple Retail employees track key product zone statistics like AppleCare+, business leads, and iPhone connectivity. It offers logging, daily goals, and visual tools to monitor progress at a glance or over longer periods. Share your progress with others securely using iCloud.
- Log transactions
- View daily progress
- Customizable graphs
- Lifetime transaction history
- Daily goals and feedback
- Secure iCloud sharing
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The world of Apple Retail’s Product Zone is a busy, fast paced environment, with information moving all the time! Metrics helps you keep track of some of this information - AppleCare+, business leads, iPhone connectivity, and more - through an easy-to-use logging system and other visual tools. Log your transactions and view the day at a glance with the Today view, giving you a quick way to check up on your progress. This Week provides customizable graphs and highlights to examine the full range of your recorded data - and view highlights from your full history of transactions with Lifetime. Use Daily Goals to help monitor progress throughout the day on standards enforced in a day-to-day context, available along with feedback right as you open the app. Keep others in the loop about your progress, or monitor the progress of another, using the Sharing feature, which utilizes existing iCloud architecture to protect your privacy while delivering speedy updates to your team.
Screenshots
Verdict
The clearest difference is update cadence: Shift Unit at every 2 months against Metrics for Product Zone's every 51 months. Shift Unit also leads on ratings volume (21 vs 1). On price, rating, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Shift Unit against 5.0 for Metrics for Product Zone. That said, the two scores are not equally well evidenced: Shift Unit has 21 ratings behind it against 1, so its average is the more settled of the two.
Shift Unit ships an update every 2 months, Metrics for Product Zone every 51 months. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.
| Parameter | Shift Unit | Metrics for Product Zone |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (21 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 21 — better | 1 |
| Update frequency | Every 2 months — better | Every 51 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, Apple Watch | iPhone, iPad, Apple Watch — better |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 18 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Didier Burton | Ethan Marshall |
Customer experience
Shift Unit
Metrics for Product Zone
In-app purchases
Shift Unit
No in-app purchases
Metrics for Product Zone
No in-app purchases
Questions
Is Shift Unit free?
Is Metrics for Product Zone free?
Which has better reviews, Shift Unit or Metrics for Product Zone?
Do Shift Unit or Metrics for Product Zone have ads?
Which is updated more often, Shift Unit or Metrics for Product Zone?
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