Comparison

Calculator Pro vs LockKeys

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

Head to head
About

Calculator Pro

This app offers a stylish and functional calculator with advanced features like percent, constant, exponential, and compound interest calculations. Customize themes and decimal rounding for a personalized experience.

Highlights
  • Percent calculations
  • Constant calculations
  • Exponential calculations
  • Compound interest calculations
  • Customizable themes
  • Customizable display
  • Decimal rounding settings
Features
Read full description

A simple, stylish calculator. One use of this free app, and you’ll never want to be without it. Percent calculations make calculating sales tax easy. Calculator supports the following features. [Percent Calculation] 500×5%25 500÷5%10000 500-5%475 500+5%525 [Constant Calculation] Constant calculations follow the Casio-style. After inputting the desired number, tap the desired operator twice to set it as the constant. Ex) When you want to constantly add 100 100++ 1000=1100 2000=2100 [Exponential Calculation] 5××=25 =125 =625 [Compound Interest Calculation] Ex) When calculating the yearly maturity on 0.5% (after tax) of $10,000 deposited yearly. 1.005×× 10000=10050 =10100.25 =10150.751 Calculator does not support function operations. It uses Sharp-style calculation formulas. [Main Functions] - Input up to 12 digits. - Supported for iPad. - Customizable themes. - Customizable display - Set the rounding of decimals - Set the rounding place of decimals - Constant calculation (Casio-style) URL Scheme: woodsmall-calculatorpro:// Made in Japan. © woodsmall inc.

About

LockKeys

Read full description

LockKeys application allows you to securely store important logins and passwords from any services. Depending on your preferences, you can store data both in the memory of your device and in iCloud cloud storage. All information is stored in encrypted form. You choose an arbitrary encryption code when you first start the application. You can also block access to the application with an arbitrary pin code of unlimited length. LockKeys has a simple, intuitive interface, which is a pleasure to work with!

Screenshots

Calculator Pro2 screens
LockKeys4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator Pro at none against LockKeys's 1. LockKeys's advantage is update cadence (every 4 weeks vs every 3 months) and price ($2.99 vs $6.99). On ads, device support and iOS requirement 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

Calculator Pro costs $6.99 and LockKeys $2.99 up front. LockKeys sells 1 one-off in-app purchase. Calculator Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Calculator Pro ships an update every 3 months, LockKeys every 4 weeks. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 7 level
Calculator Pro versus LockKeys: the parameters behind the verdict, then further details
ParameterCalculator ProLockKeys
Price$6.99$2.99 — better
Rating3.6 (5 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS12.0 — better13
Further details — not scored
Size25 MB2 MB
Age rating4+4+
Developerwoodsmall inc.Oleg Geraimovich

In-app purchases

None

Calculator Pro

No in-app purchases

1 purchases

LockKeys

One-time1
  • "Donation to developer"$0.99

Questions

Is Calculator Pro free?
Calculator Pro costs $6.99, with no in-app purchases.
Is LockKeys free?
LockKeys costs $2.99, and also offers in-app purchases.
Do Calculator Pro or LockKeys have ads?
Neither Calculator Pro nor LockKeys shows ads.
Which is updated more often, Calculator Pro or LockKeys?
Calculator Pro ships an update every 3 months, and LockKeys every 4 weeks. Most recently, Calculator Pro was updated on October 23, 2026 and LockKeys on October 26, 2026.

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