Comparison

Rola vs Calq_

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

Head to head
About

Rola

Features
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This app provides remote monitoring of your Rola-Chem Controller, delivering real-time visibility into pH and ORP levels. Easily view your latest readings in one place to stay informed, reducing the need for physical site visits.

About

Calq_

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Welcome to Calq โ€“ Your All-in-One Calculator App! Unlock the full potential of your calculations with Calq, the must-have app that goes beyond basic math. Seamlessly combining a powerful calculator, a date calculator, a unit converter, and now introducing our brand-new Utilities feature โ€“ the ultimate toolkit for every user! - Calculator View: Crunch numbers effortlessly with our intuitive calculator. From simple addition to complex equations, we've got you covered. - Calendar View: Calculate dates with ease! Perfect for planning events, tracking milestones, or just staying organized. - Unit Converter: Effortlessly convert various units โ€“ from length and weight to temperature and more. Your go-to tool for unit conversions! - Utilities (NEW): Take your calculations to the next level with our advanced Utilities feature. From BMI calculations to other health metrics and miscellaneous tools, Calq is your versatile companion for all your calculation needs. - Alternate App Icons: Customize your app with unique icons! Express yourself by choosing from a variety of icons that suit your style. - Support the Development: Contribute to the growth of Calq! Your support ensures we continue to enhance and expand our app for an even better user experience. - Result History: View and copy old results to the clipboard. Easily recall and share your past calculations. - Unit Converter on the Go: Traveling or working abroad? Our Unit Converter makes sure you're never lost in translation. Discover the power of Calq โ€“ download now and experience a new dimension in calculations! Whether you're a student, professional, or just love numbers, Calq is designed for you. - Why Calq? Intuitive design for seamless navigation Accurate and reliable calculations Regular updates with new features Join the growing community of Calq users who have elevated their calculating game! Download now and make every calculation a breeze. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Rola3 screens
Calq_4 screens

Verdict

The call

The clearest difference is in-app purchases: Rola at none against Calq_'s 2. Rola also leads on device support (3 vs 1). Calq_'s advantage is update cadence (every 4 days vs every 6 weeks). On price, ads and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Calq_ sells 2 in-app purchases, starting at $0.99 per month. Rola asks for nothing beyond the download.

UpkeepUpdate frequency

Rola ships an update every 6 weeks, Calq_ every 4 days. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

Scorecard3 real differences ยท 3 level
Rola versus Calq_: the parameters behind the verdict, then further details
ParameterRolaCalq_
PriceFreeFree
Update frequencyEvery 6 weeksEvery 4 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS16.016.0
Further details โ€” not scored
Size22 MB14 MB
Age rating4+4+
DeveloperRed7 Systems IncAgustin Dell Aquila

In-app purchases

None

Rola

No in-app purchases

2 purchases

Calq_

Subscriptions1
  • Calq+ Monthly$0.991 Month
One-time1
  • Calq+ Lifetime$7.99

Questions

Is Rola free?
Rola is free to download, with no in-app purchases.
Is Calq_ free?
Calq_ is free to download, with in-app purchases available.
Do Rola or Calq_ have ads?
Neither Rola nor Calq_ shows ads.
Which is updated more often, Rola or Calq_?
Rola ships an update every 6 weeks, and Calq_ every 4 days. Most recently, Rola was updated on October 18, 2026 and Calq_ on October 8, 2026.

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