Calculator Pro vs LockKeys
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Percent calculations
- Constant calculations
- Exponential calculations
- Compound interest calculations
- Customizable themes
- Customizable display
- Decimal rounding settings
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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.
LockKeys
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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
Verdict
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
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.
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.
| Parameter | Calculator Pro | LockKeys |
|---|---|---|
| Price | $6.99 | $2.99 — better |
| Rating | 3.6 (5 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 13 |
| Further details — not scored | ||
| Size | 25 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | woodsmall inc. | Oleg Geraimovich |
In-app purchases
Calculator Pro
No in-app purchases
LockKeys
- "Donation to developer"$0.99
Questions
Is Calculator Pro free?
Is LockKeys free?
Do Calculator Pro or LockKeys have ads?
Which is updated more often, Calculator Pro or LockKeys?
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