Comparison

Conversion Calculator Plus vs Perfect Call

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

Perfect Call

Features
Read full description

Perfect Call is a mobile and web-based communication platform designed to eliminate physical duty phones, improper shift handoffs, and critical communication breakdowns across hospital systems and large enterprises. Rather than relying on expensive hardware or passive scheduling spreadsheets, Perfect Call digitizes role-based telephony via Software-Defined Routing directly to staff members' personal mobile devices Enterprises spend millions purchasing, maintaining, and replacing physical VoIP/duty phones that are easily lost, mishandled by staff and paralyze operations when non-operational. Traditional workflows require multiple manual touchpoints each acting as a failure point. Varied departments may utilize traditional schedule software, spreadsheets or even paper notes to provide a static map of who should be working a particular shift. Employees trying to get in touch with particular personnel have to rely on a multitude of schedules to find the right person, find their contact number and finally make the call. Errors in schedules, transcription, misplaced phones all lead to frustrated employees, customers and potential loss of revenue, delayed patient care, lost productivity. This is where Perfect Call steps in. An employee or clinicians coming on shift logs on to the app and selects their role. Calls to the number associated with that role are immediately routed to that employee's cell phone. End of shift employees are motivated to “handoff” the role to the next employee to stop receiving phone calls. For the customer trying to reach a particular role- the experience is seamless- the call is always routed to someone. Perfect Call allows for multiple departments, types of roles to be defined in one account. Manage phone lists across multiple hospitals and departments from a single dashboard. Instant Handoffs. Clinicians can claim multiple roles simultaneously with the click of a button. Software defined role routing. Permanent dedicated phone numbers are dynamically routed to whoever holds the “role” Automated hand offs to the next person coming on shift. Self-Policing- stuff can either take a “role” or hand over a “role” during shift hand offs. Structured hierarchically around Organizations > Entities > Departments > Numbers > Users. Rapid QR Code Onboarding- Create accounts for staff, locums, travel nurses, and temporary staff in seconds by scanning a secure, time-bounded QR code. Enterprise level admin tools and operational analytics- Features real-time dashboards tracking response latencies, fallback occurrences, call volume heatmaps, and complete, down-to-the-second audit trails. Value Proposition- Capital expenditure savings: Eliminates the procurement, replacement, and maintenance costs of physical phone hardware. Enterprise Scalability: A single platform capable of managing clinical on-call teams, IT helpdesks, facilities, and security across multiple hospital entities. Increased satisfaction for all end users.

Screenshots

Conversion Calculator Plus4 screens
Perfect Call4 screens

Verdict

The call

The clearest difference is in-app purchases: Perfect Call at none against Conversion Calculator Plus's 1. Perfect Call also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). Conversion Calculator Plus's advantage is update cadence (every 6 days vs every 3 weeks). 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. Perfect Call asks for nothing beyond the download.

UpkeepUpdate frequency

Conversion Calculator Plus ships an update every 6 days, Perfect Call every 3 weeks. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Conversion Calculator Plus versus Perfect Call: the parameters behind the verdict, then further details
ParameterConversion Calculator PlusPerfect Call
PriceFreeFree
Rating4.7 (15K ratings) — better—
Positive reviews68.9% of reviews—
Number of ratings15K — better—
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size78 MB49 MB
Age rating4+4+
DeveloperAdysseusMARK RICHARD CAVANAUGH

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

Perfect Call

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

Perfect Call

No in-app purchases

Questions

Is Conversion Calculator Plus free?
Conversion Calculator Plus is free to download, with in-app purchases available.
Is Perfect Call free?
Perfect Call is free to download, with no in-app purchases.
Do Conversion Calculator Plus or Perfect Call have ads?
Conversion Calculator Plus shows ads; Perfect Call does not.
Which is updated more often, Conversion Calculator Plus or Perfect Call?
Conversion Calculator Plus ships an update every 6 days, and Perfect Call every 3 weeks. Most recently, Conversion Calculator Plus was updated on October 14, 2026 and Perfect Call on October 8, 2026.

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