Comparison

Calculator!! vs View Battery Info

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

Head to head
About

Calculator!!

This advanced calculator offers a comprehensive history of your calculations and supports complex functions like fraction manipulation, angle conversions, and equation solving. It also includes specialized tools for engineers and a dice roller.

Highlights
  • Calculation history
  • Fraction manipulation
  • Angle conversions (degrees, minutes, seconds)
  • Permutation, combination, LCM, GCD
  • Quadratic and linear equation solver
  • Coordinate conversion
  • Dice roller
Features
Read full description

Calculator!! has the following additional functionality compared with most available calculators: - Shows the expression as you enter and keeps a history of your calculations (Swipe up on the screen to access the history.) - Capability of performing fraction manipulations and converting between different formats (proper, improper, and mixed fractions) and seamless integration of fraction, integer, and decimal manipulations. - Capability of inputting degrees, minutes, and seconds for angles and converting between degrees-minutes-seconds format and decimal format. - Capability of calculating permutation, combination, Least Common Multiple (LCM), and Greatest Common Divisor (GCD). - Quadratic and system of two linear equations solver - Rectangular to polar and polar to rectangular coordinate conversion (extremely useful for phasor calculations for electrical engineers) - Throws a set of dice (choice of 1 die to 4 dice) - Backspace to delete last digit entered. - Tip Calculator - Geometry Calculator - The left pane scrolls to reveal more functionality without a need to switch modes. The digits and most common operations are always visible and the less common operations can be revealed by scrolling the left half of the screen. - Sinusoidal functions can be calculated for angles in units of degrees, radians, or gradians. - Showing the content of memory on MR button, as long as it fits. Calculator!! is an ongoing project and we are working on more features and functions to be added to every update of the app. You are going to love the simplicity of the user interface and you will get used to the extra functionality added to this product. Please do not hesitate to contact us for any questions, comments, to report any bugs, or to suggest additional functions you would like to see in the upcoming updates.

About

View Battery Info

Features
Read full description

Battery Passport Info App – Compliant, Transparent, and Future-Ready Introducing the Battery Passport Viewer App – your trusted tool for accessing and verifying battery data in full compliance with the EU Battery Regulation (Regulation (EU) 2023/1542). Whether you’re an EV owner, manufacturer, recycler, or regulator, the app delivers secure, standardized access to key battery information, helping you stay ahead in a rapidly evolving regulatory landscape. Fully compliant with EU Battery Passport requirements, including: • Unique battery identification • Material sourcing and supply chain traceability • Carbon footprint data • Performance and durability records • Responsible end-of-life and recycling pathways • Human rights and environmental due diligence reporting Empowering every stakeholder: EV Owners – Understand the origin, health, and impact of your battery. Manufacturers & OEMs – Ensure transparency and meet regulatory obligations. Recyclers – Access critical EOL data for safer and more efficient recovery. Regulators & Authorities – Monitor compliance and enforce sustainable practices. With the Battery Passport Info App, you’re not just viewing data – you’re enabling a cleaner, more responsible battery ecosystem.

Screenshots

Calculator!!4 screens
View Battery Info4 screens

Verdict

The call

The clearest difference is price: View Battery Info at Free against Calculator!!'s $0.99. View Battery Info also leads on update cadence (weekly vs every 10 months). Calculator!!'s advantage is iOS requirement (10.0 vs 15.6). On ads, in-app purchases 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

View Battery Info is free to download; Calculator!! costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Calculator!! ships an update every 10 months, View Battery Info weekly. The most recent releases landed on October 26, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
Calculator!! versus View Battery Info: the parameters behind the verdict, then further details
ParameterCalculator!!View Battery Info
Price$0.99Free — better
Rating4.5 (56 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings56 — better—
Update frequencyEvery 10 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better15.6
Further details — not scored
Size12 MB22 MB
Age rating4+4+
DeveloperDogaheGRIDWHIZ (THAILAND) COMPANY LIMITED

In-app purchases

None

Calculator!!

No in-app purchases

None

View Battery Info

No in-app purchases

Questions

Is Calculator!! free?
Calculator!! costs $0.99, with no in-app purchases.
Is View Battery Info free?
View Battery Info is free to download, with no in-app purchases.
Do Calculator!! or View Battery Info have ads?
Neither Calculator!! nor View Battery Info shows ads.
Which is updated more often, Calculator!! or View Battery Info?
Calculator!! ships an update every 10 months, and View Battery Info weekly. Most recently, Calculator!! was updated on October 26, 2026 and View Battery Info on October 6, 2026.

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