Comparison

Shift Unit vs SearchGPT

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

SearchGPT

This AI-powered search engine leverages ChatGPT to provide accurate and rich content from authoritative global sources. It aims to offer equal access to information for everyone, functioning as a super search engine.

Highlights
  • AI-powered search
  • ChatGPT integration
  • Accurate content
  • Authoritative sources
  • Rich information access
  • Global information
Features
Read full description

Find answer to everything! We focus on accurate, authoritative, and rich content sources to ensure that everyone has equal access to global information. SearchGPT is a super search engine driven by ChatGPT. - Privacy Policy: https://h0hd079f3xo.feishu.cn/docx/WohRdSnzToOoDyxqz6scdwSOnHf - Terms: https://h0hd079f3xo.feishu.cn/docx/CApJdkbW4oJSqmxqhbicoD0VnLe

Screenshots

Shift Unit4 screens
SearchGPT4 screens

Verdict

The call

The clearest difference is review sentiment: Shift Unit at 100% against SearchGPT's 7%. Shift Unit also leads on rating (5.0 vs 4.1) and in-app purchases (none vs 2). SearchGPT's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (92 vs 21). On price, ads and 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SearchGPT sells 2 in-app purchases, starting at $2.99 per 7 days. Shift Unit asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Shift Unit holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 21 and 92 respectively. Written reviews point the same way: 100% of Shift Unit's written reviews are positive against 7% of SearchGPT's.

UpkeepUpdate frequency

Shift Unit ships an update every 2 months, SearchGPT every 3 weeks. The most recent releases landed on September 6, 2026 and September 26, 2026 respectively.

Scorecard7 real differences · 3 level
Shift Unit versus SearchGPT: the parameters behind the verdict, then further details
ParameterShift UnitSearchGPT
PriceFreeFree
Rating5.0 (21 ratings) — better4.1 (92 ratings)
Positive reviews100.0% of reviews — better7.1% of reviews
Number of ratings2192 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS16.014.0 — better
Further details — not scored
Size20 MB19 MB
Age rating4+17+
DeveloperDidier Burton露 王

Customer experience

Shift Unit

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

SearchGPT

All ratings92 ratings
Positive76.1%
Neutral4.3%
Negative19.6%
Written reviews14 reviews
Positive7.1%
Neutral0.0%
Negative92.9%

In-app purchases

None

Shift Unit

No in-app purchases

2 purchases

SearchGPT

Subscriptions2
  • Weekly Premium$2.997 Days
  • Annual Premium$29.991 Year

Questions

Is Shift Unit free?
Shift Unit is free to download, with no in-app purchases.
Is SearchGPT free?
SearchGPT is free to download, with in-app purchases available.
Which has better reviews, Shift Unit or SearchGPT?
Shift Unit is rated higher. Shift Unit averages 5.0 out of 5 from 21 ratings, while SearchGPT averages 4.1 from 92 ratings.
Do Shift Unit or SearchGPT have ads?
Neither Shift Unit nor SearchGPT shows ads.
Which is updated more often, Shift Unit or SearchGPT?
Shift Unit ships an update every 2 months, and SearchGPT every 3 weeks. Most recently, Shift Unit was updated on September 6, 2026 and SearchGPT on September 26, 2026.

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