Comparison

Calcularium vs amplifyCRM Pro

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

Head to head
About

Calcularium

This app offers real-time calculations, allowing you to see results as you type. It goes beyond basic arithmetic with advanced functions, unit conversions, and customizable expressions, acting as a powerful helper for complex calculations.

Highlights
  • Reactive Calculations
  • Voice Control (Siri)
  • Script and Photo Input
  • Multi-Level Sub-Calculations
  • Editable History
  • Unit and Currency Conversion
  • Customizable Functions
Features
Read full description

Here are Calcularium users describing the app: "You know how you're slowly calculating something and you're in the middle of an expression so you want to know how you're doing? Yeah well that's real time calculation and I couldn't find an app that did it right, tried dozens of them and still nothing, BUT this app does it the perfect way, actually the way it should work, this app is definitely worth it, thanks a lot devs, big love. Edit: OMG this is better than I thought, I just noticed the tutorials given and this app has more functions than I noticed, this is super amazing, devs, you're the best." – Anton31kah10 "I mean it literally. The tiny app packs impressive amount of useful stuff for a mere calculator. I would say it’s like mobile Excel. Math functions, unit conversion, currency exchange rates, and, even simple programmers functions. I wrote a small formula to calculate tips for our county. Easier and better than any tipping app! I hope the developer expands these functions for Shortcuts and Siri. This would be real killer app! Thanks guys!" – Z!KeepeR "What looks like just a clean calculator app is in fact a powerhouse full of advanced features you could only get with custom Excel mega sheet." – AlexDbk "You can find a lot of different kind of calculators but this is something completely new and awesome. It is not an another boring calculator. This is your real helper if you need to calculate something more than 2+2 :). Tutorial is great and helpful. History, customizable functions, variables, converter and much more. Great! It is definitely the next generation of the regular things." – Lysyk CALCULARIUM FEATURES: • Voice-controlled, backed by Siri • Script and Photo input modes • Reactive Calculations • Multi-Level Sub-Calculations with No Limits • History: Editable and Reusable • Self-Explanatory Naming for Every Component • Functions and Reusable Expressions • Constants and Reusable Numbers • Multiple Reversible Conversions (350+ units and 160+ currencies) • Advanced Search • Built-In Scientific Functions CONTROL BY VOICE Calcularium is also can be controlled by voice and has the ability to understand spoken math questions and calculate the answer. Tell it: "6 bottles by 15 dollars” - and it will give you the right result! It works by using verbal numbers and mathematical operations. FLUID DESIGN The design language of the Calcularium is based on tokens. All tokens are of the same structure: the left part shows a type of the element, the right part has a result or an entered value and its name on top. In addition to tokens there are pure numbers and math operators. HISTORY You can set an expression as a variable with the goal to use it afterwards in other expressions and give every component a clear name to recall what it stands for easily. Create a calculation, and next time you reuse it from History section, every component will clearly speak to you. Almighty Version is a recurrent subscription with such options: 1 month, 6 month and 1 year. Confirmation of purchase is required to start free one week trial period. The subscription begins immediately. Payment will be charged to iTunes Account at the end of the trial period. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of a free trial period will be forfeited when the user purchases a subscription. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Privacy Policy https://www.invoodoo.com/privacy-policy Terms of Use https://www.invoodoo.com/terms-of-use

About

amplifyCRM Pro

Streamline your hearing care practice with an all-in-one platform for messaging, scheduling, and automation. Increase patient conversion, manage communications across multiple channels, and automate marketing to keep your schedule full.

Highlights
  • Unified messaging platform
  • Automated scheduling and reminders
  • Webchat integration
  • Google Business & Social Media integration
  • Review generator
  • Marketing automation
Features
Read full description

amplify Your Hearing Care Practice! We're the all in one platform to combine messaging, scheduling, reminders, webchat and full automation with your clinic data and your website. And with our mobile app, you can literally hold the power of this system in one hand. Increases Your Patient Lead Conversion Rate AmplifyCRM is an all-in-one messaging platform with Google Business & Social Media integration and many other features. It is designed to streamline your practice and increase revenue by providing appointment reminders, automated scheduling, and Webchat so you never miss a potential patient opportunity. A Cloud Based Unified Messaging Platform "amplifyCRM is the only all-in-one Unified Messaging Platform that integrates with an office management system, Google Business and Social Media, offers automated scheduling, appointment reminders, webchat, patient conversion automations and a review generator - all in one easy-to-manage CRM solution. Designed by practice owners for practice owners." Add amplifyCRM Pro To Your Audiology Toolkit Today! With amplifyCRM Pro, you can easily communicate with your patients no matter how they are reaching out to you. Review Generator With amplifyCRM Pro, you can automatically generate reviews from your happy customers and post them on your website or social media pages. Marketing on AutoPilot Send the right messages to your patient at the right time during their journey with you and keep your schedule full and your patients from going anywhere else. Automate communications with email, postal mail, text messaging, phone calls, and voice mail drops. amplifyCRM Pro - Your Complete Communications Solution The hearing care industry is changing and more people want to explore the benefits of becoming a patient. amplifyCRM has been developed in the United States by audiologists and hearing care practice owners, with a focus on automation. Manage your hearing care practice with ease. Use amplifyCRM Pro!

Screenshots

Calcularium4 screens
amplifyCRM Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: amplifyCRM Pro at none against Calcularium's 7. amplifyCRM Pro also leads on ads (none vs shown) and rating (5.0 vs 4.6). Calcularium's advantage is ratings volume (2.2K vs 1) and update cadence (fortnightly vs every 2 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. Calcularium sells 7 in-app purchases, starting at $3.99 per month. amplifyCRM Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

amplifyCRM Pro holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Calcularium has 2.2K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Calcularium ships an update fortnightly, amplifyCRM Pro every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Calcularium versus amplifyCRM Pro: the parameters behind the verdict, then further details
ParameterCalculariumamplifyCRM Pro
PriceFreeFree
Rating4.6 (2.2K ratings)5.0 (1 ratings) — better
Positive reviews67.3% of reviews—
Number of ratings2.2K — better1
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.016.6 — better
Further details — not scored
Size52 MB340 MB
Age rating4+4+
DeveloperInVooDoo LLCDustin Potter

Customer experience

Calcularium

All ratings2,174 ratings
Positive89.7%
Neutral3.3%
Negative7.1%
Written reviews49 reviews
Positive67.3%
Neutral6.1%
Negative26.5%

amplifyCRM Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Calcularium

Reported bugs

3 issues
  • Crashes or freezes on certain devices
  • Incompatibility with older iOS versions
  • Issues with calculator widget functionality

Requested features

4 requests
  • Add basic calculator functions like equal and clear buttons
  • Improve unit conversion and scientific functions
  • Integrate with Shortcuts and Siri
  • Provide more customization options

amplifyCRM Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Calcularium

Subscriptions4
  • Almighty Version$3.991 Month
  • Almighty Version$4.996 Months
  • InVooDoo One$5.991 Month
Show 1 more
  • Almighty Version$29.991 Year
One-time3
  • Unlock Pro Version$199.99
  • Lifetime Almighty Version$199.99
  • Remove Ads Only$199.99
None

amplifyCRM Pro

No in-app purchases

Questions

Is Calcularium free?
Calcularium is free to download, with in-app purchases available.
Is amplifyCRM Pro free?
amplifyCRM Pro is free to download, with no in-app purchases.
Which has better reviews, Calcularium or amplifyCRM Pro?
amplifyCRM Pro is rated higher. Calcularium averages 4.6 out of 5 from 2.2K ratings, while amplifyCRM Pro averages 5.0 from 1 ratings.
Do Calcularium or amplifyCRM Pro have ads?
Calcularium shows ads; amplifyCRM Pro does not.
Which is updated more often, Calcularium or amplifyCRM Pro?
Calcularium ships an update fortnightly, and amplifyCRM Pro every 2 months. Most recently, Calcularium was updated on November 6, 2026 and amplifyCRM Pro on November 3, 2026.

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