Comparison

Conversion Calculator Plus vs Plc Echo

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

Head to head
About

Conversion Calculator Plus

This app is a versatile unit and currency converter with a user-friendly interface. It supports a wide range of conversion categories, including real-world and crypto currencies, with automatic exchange rate updates. Customize your experience with design options, dark mode, and adjustable home screen layouts.

Highlights
  • Unit and currency conversion
  • Supports 160+ currencies (real & crypto)
  • Automatic currency exchange rate updates
  • Simple or carousel design options
  • Dark Mode support
  • Customizable home screen layout
  • Split screen mode on iPad
Features
Read full description

Whether you are measuring ingredients for a recipe, comparing currencies while traveling or working through an everyday calculation, Conversion Calculator Plus brings the tools together in one app. Convert among 685 units in 72 categories, with exchange rates for 160 currencies, 126 cryptocurrencies and four precious metals. NEW IN VERSION 3.0 • Currency+: compare multiple currencies in a list you can reorder, and calculate directly in the amount field. • Currency History: view historical exchange rates on a chart. • Built-in calculator: enter expressions in supported converters and see results update as you type. • Interactive Home Screen widgets: save a converter and calculate from the Home Screen. Premium required. • Siri: run a saved conversion by name, start a new conversion or update a widget's amount. Premium required; command availability depends on your iPhone's Siri language. UNIT CONVERSION • Convert length, area, weight, temperature, speed, time, pressure, volume, energy, data and many other measurements. • Work with cooking measures, shoe and ring sizes, running pace, fuel economy and blood sugar. • View results as you enter an amount, and copy them to use in other apps. CURRENCY AND MARKETS • Exchange rates for 160 world currencies update automatically. • Compare 126 cryptocurrencies and the prices of gold, silver, platinum and palladium. • Use Currency+ to compare several currencies at once and Currency History to examine past rates. PERSONALIZE YOUR WORKSPACE • Choose Classic, Modern Simple or Modern Carousel, and switch styles in Settings. • Save frequently used conversions as Favorites; edit, delete or reorder them. • Hide categories and units you do not use. • Search categories and units, and arrange category icons on the Home Screen. • Use the app on iPhone or iPad, including Split View on iPad. Light and dark appearances are supported. • Available in 33 app languages. PREMIUM Premium is an optional auto-renewing annual subscription. It removes ads, enables offline use, and unlocks interactive Home Screen widgets and Siri conversions. Payment is charged to your Apple Account when you confirm the purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. The price is shown before you confirm. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://developer-yl.github.io/convert-units-plus/privacy.html

About

Plc Echo

Read full description

Real-Time Data Monitoring: Effortlessly read and write data to and from your PLCs (Programmable Logic Controllers). View live data directly on your mobile device or PC, wherever you are. Dynamic Visualizations: Instantly track PLC data through dynamic gauges for a visually intuitive experience. Monitor system performance at a glance. Comprehensive Trending: Track and analyze PLC data with single-tag trends for detailed insights and multi-tag comparison to understand relationships and system behavior. Extensive Resources: Access a full online manual, along with video tutorials for easy onboarding and advanced usage tips. Free Forever, with Limitations: The FREE version of Plc Echo provides ongoing access with a limited number of tags, allowing you to experience its capabilities at no cost. Whether monitoring critical systems or exploring data trends, Plc Echo is your must-have tool for real-time PLC data management. Download now and turn your device into a smart monitoring hub!

Screenshots

Conversion Calculator Plus4 screens
Plc Echo4 screens

Verdict

The call

The clearest difference is in-app purchases: Plc Echo at none against Conversion Calculator Plus's 1. Plc Echo also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). Conversion Calculator Plus's advantage is update cadence (every 6 days vs every 17 months). On price 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. Conversion Calculator Plus sells 1 in-app purchase, starting at $9.99 per year. Plc Echo asks for nothing beyond the download.

UpkeepUpdate frequency

Conversion Calculator Plus ships an update every 6 days, Plc Echo every 17 months. The most recent releases landed on October 10, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
Conversion Calculator Plus versus Plc Echo: the parameters behind the verdict, then further details
ParameterConversion Calculator PlusPlc Echo
PriceFreeFree
Rating4.7 (15K ratings) — better—
Positive reviews69.2% of reviews—
Number of ratings15K — better—
Update frequencyEvery 6 days — betterEvery 17 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size78 MB66 MB
Age rating4+4+
DeveloperAdysseusAutomation Consultancy Limited

Bugs and requests

Conversion Calculator Plus

Reported bugs

3 issues
  • Currency conversion not working
  • App gets stuck on consent page
  • Unable to get past ads/subscription page

Requested features

3 requests
  • Add running pace conversions
  • Add shoe size converter
  • Provide paid ad-free version

Plc Echo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Conversion Calculator Plus

Subscriptions1
  • No Ads For One Year1 Year trial$9.991 Year
None

Plc Echo

No in-app purchases

Questions

Is Conversion Calculator Plus free?
Conversion Calculator Plus is free to download, with in-app purchases available.
Is Plc Echo free?
Plc Echo is free to download, with no in-app purchases.
Do Conversion Calculator Plus or Plc Echo have ads?
Conversion Calculator Plus shows ads; Plc Echo does not.
Which is updated more often, Conversion Calculator Plus or Plc Echo?
Conversion Calculator Plus ships an update every 6 days, and Plc Echo every 17 months. Most recently, Conversion Calculator Plus was updated on October 10, 2026 and Plc Echo on September 24, 2026.

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