Comparison

Centaurus & Device Application vs Unitary Converter

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

Head to head
About

Centaurus & Device Application

This utility app pairs with a smart device to let you control its functions. You can view and change settings, and even upload custom wallpapers to sync with your device.

Highlights
  • Connect to smart device
  • View and modify function parameters
  • Switch wallpapers
  • Upload custom wallpapers
  • Sync with device
Features
Read full description

Centaurus is the companion app for the smart device BT200. After connecting the device, you can view and modify the function parameters, switch or upload wallpapers to sync with the BT200 device.

About

Unitary Converter

Features
Read full description

Unitary is a beautifully designed offline unit converter and calculator. Convert between hundreds of units across 35+ categories — core conversions work without internet. ### What's New in v2.2 • New app icon — bold U with conversion arrows • 35+ categories including angle, pace, torque, blood glucose, compound interest • Optional Remove Ads purchase — one-time, no subscription • Light banner on main screens; optional rewarded video in Settings • Favorites strip, history tap-to-reopen, decimal precision control • 7 languages with full unit label support • Beden/yüzük, world clock, recipe scaler, wind chill & more ### 35+ Categories & Tools **Converters:** Length, Mass, Volume, Temperature, Area, Speed, Data, Time, Energy, Power, Pressure, Fuel, Cooking, Shoes, Typography, Numeral, Angle, Pace, Frequency, Illuminance, Torque, Density, Ring Size, Clothing Size, Blood Glucose **Tools:** Discount, Tip, BMI, Age, Currency, World Clock, Feet & Inches, Percentage, Wind Chill, Recipe Scaler, Countdown, Compound Interest ### Privacy & Data • Conversions and history stored locally on your device • No account required • Optional ads support the free version — remove anytime via in-app purchase • Privacy Policy: https://z0iq.com/unitary_privacy.html ### Personalization • 7 Languages: English, French, German, Spanish, Italian, Portuguese, Turkish • Light, Dark, and System themes • Pin categories, save favorite pairs, conversion history • Configurable haptic feedback and decimal precision Whether you're cooking, traveling, studying, or working — Unitary has you covered.

Screenshots

Centaurus & Device Application2 screens
Unitary Converter4 screens

Verdict

The call

The clearest difference is in-app purchases: Centaurus & Device Application at none against Unitary Converter's 1. Centaurus & Device Application also leads on ads (none vs shown) and update cadence (every 8 days vs every 2 months). On price, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Unitary Converter sells 1 one-off in-app purchase. Centaurus & Device Application asks for nothing beyond the download.

UpkeepUpdate frequency

Centaurus & Device Application ships an update every 8 days, Unitary Converter every 2 months. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
Centaurus & Device Application versus Unitary Converter: the parameters behind the verdict, then further details
ParameterCentaurus & Device ApplicationUnitary Converter
PriceFreeFree
Rating3.5 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 8 days — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size46 MB18 MB
Age rating17+4+
Developer志强 古Hakan Buran

In-app purchases

None

Centaurus & Device Application

No in-app purchases

1 purchases

Unitary Converter

One-time1
  • Remove Ads$2.99

Questions

Is Centaurus & Device Application free?
Centaurus & Device Application is free to download, with no in-app purchases.
Is Unitary Converter free?
Unitary Converter is free to download, with in-app purchases available.
Do Centaurus & Device Application or Unitary Converter have ads?
Unitary Converter shows ads; Centaurus & Device Application does not.
Which is updated more often, Centaurus & Device Application or Unitary Converter?
Centaurus & Device Application ships an update every 8 days, and Unitary Converter every 2 months. Most recently, Centaurus & Device Application was updated on October 5, 2026 and Unitary Converter on October 16, 2026.

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