Calculator vs Decio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator
This app offers a stylish and user-friendly calculator experience with advanced features like percent, constant, exponential, and compound interest calculations. Customize themes and display settings to suit your preferences.
- Percent calculations
- Constant calculations (Casio-style)
- Exponential calculations
- Compound interest calculations
- Input up to 12 digits
- Customizable themes and 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-calculatorplus:// Made in Japan. © woodsmall inc.
Decio
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Connect with new friends and build meaningful connections on Decio's social polling platform. Effortlessly create captivating public surveys across diverse categories. Explore our collection of articles, featuring insights on finance, lifestyle, life-enhancing tips, career choices, and many more.
Screenshots
Verdict
The clearest difference is ads: Decio at none against Calculator's shown. Decio also leads on update cadence (fortnightly vs every 6 weeks). On price, in-app purchases, 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
Both are free to download. Calculator sells 4 in-app purchases, starting at $0.49 per month and Decio sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Calculator ships an update every 6 weeks, Decio fortnightly. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.
| Parameter | Calculator | Decio |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (45 ratings) — better | — |
| Positive reviews | 84.0% of reviews | — |
| Number of ratings | 45 — better | — |
| Update frequency | Every 6 weeks | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 79 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | woodsmall inc. | Mark Rozario |
In-app purchases
Calculator
- Monthly plan$0.491 Month
- 6 months plan$2.996 Months
- Annual plan$5.991 Year
- Pay in full$7.99
Decio
- Decio Premium Membership$0.991 Month
- Decio Premium Membership$9.991 Year
