Calculation!

Paul Koomey · iOS

Calculation!

Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.

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01 / Creative research

Turn the unknowns into a research plan.

01

Check the acquisition promise

Read the store headline, screenshots and description. What problem is the app promising to solve?

Study the storefront ↗
02

Look for ad evidence

Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.

Browse observed advertisers ↗
03

Separate demand from paid growth

Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.

Review the market context ↗

02 / Storefront & product

Where the click lands.

Study the product story and store experience behind the acquisition funnel.

Screenshots

Calculation! screenshot 1Calculation! screenshot 2Calculation! screenshot 3

03 / Market context

The business behind the app.

Keep revenue, downloads and store rankings separate from advertising performance.

How Much Does Calculation! Make?

Monthly Revenue
$1.0K
Annualized estimate
$12.0K
Per Download
$1.00

Platform Performance

🍎iOS
Revenue
$1.0K
Downloads
1.0K
Rating
5.0 ★(88)

Rating Distribution

5.0
★★★★★
88 reviews
5
0%
4
0%
3
0%
2
0%
1
100%

Top Countries

🇺🇸 US🇩🇪 DE🇫🇮 FI
Reviews (3)▼
★★★★★ishuagra8/28/2021
Nothing beats this.

Awesome work! Finally, a calculator that works quickly, along with a clean and friendly UI. Significantly better than the default calculator provided by Apple. Hoping for an iPadOS and macOS release. One request: I would love to see dark mode eventually added. Something that doesn’t sound important but more convenient when using the app at night.

★★★★★eatmyassing8/5/2021
Wonderful calculator.

Great work Paul on this calculator app. Find it much easier to input into then the default calculator. I do have a request for a feature, maybe make it a toggle if others don’t like it, but maybe you can make hitting enter on a blank line re enter the previous input. For instance if I had a^2 every time I hit enter it would square the previous output.

★★★★★egkim9048/4/2021
Functional and Practical

This is genuinely the cheapest and overall best option for a calculator. Absolutely no ads, the layout is super concise, and the math is quick. My only suggestion is changing the color of the ‘clear’ button, and maybe varying the colors of the ‘delete’ and ‘menu’ button. I find it easier to take note of specific details when the font is either bolded, color coded, or both. It’s just a personal preference, but I think this small change could really perfect this calculator.

Version History (5)▼
1.1.33/4/2022
1.1.28/18/2021
1.1.18/3/2021
1.1.07/28/2021
1.0.07/26/2021
Available In (115 Countries)▼
🇺🇸 United States🇦🇺 Australia🇨🇦 Canada🇨🇳 China🇫🇷 France🇩🇪 Germany🇬🇧 United Kingdom🇮🇹 Italy🇯🇵 Japan🇰🇷 South Korea🇷🇺 Russia🇩🇿 DZ🇦🇴 AO🇦🇷 Argentina🇦🇹 Austria🇦🇿 AZ🇧🇭 BH🇧🇧 BB🇧🇾 BY🇧🇪 Belgium🇧🇲 BM🇧🇷 Brazil🇧🇬 Bulgaria🇨🇱 Chile🇨🇴 Colombia🇨🇷 CR🇭🇷 Croatia🇨🇾 CY🇨🇿 Czech Republic🇩🇰 Denmark🇩🇴 DO🇪🇨 EC🇪🇬 Egypt🇸🇻 SV🇫🇮 Finland🇬🇭 GH🇬🇷 Greece🇬🇹 GT🇭🇰 Hong Kong🇭🇺 Hungary🇮🇳 India🇮🇩 Indonesia🇮🇪 Ireland🇮🇱 Israel🇰🇿 KZ🇰🇪 Kenya🇰🇼 KW🇱🇧 LB🇱🇹 Lithuania🇱🇺 LU🇲🇴 MO🇲🇬 MG🇲🇾 Malaysia🇲🇹 MT🇲🇽 Mexico🇳🇱 Netherlands🇳🇿 New Zealand🇳🇬 Nigeria🇳🇴 Norway🇴🇲 OM🇵🇰 Pakistan🇵🇦 PA🇵🇪 Peru🇵🇭 Philippines🇵🇱 Poland🇵🇹 Portugal🇶🇦 QA🇷🇴 Romania🇸🇦 Saudi Arabia🇷🇸 RS🇸🇬 Singapore🇸🇰 Slovakia🇸🇮 Slovenia🇿🇦 South Africa🇪🇸 Spain🇱🇰 LK🇸🇪 Sweden🇨🇭 Switzerland🇹🇼 Taiwan🇹🇭 Thailand🇹🇳 TN🇹🇷 Turkey🇺🇦 Ukraine🇦🇪 UAE🇺🇾 UY🇺🇿 UZ🇻🇪 VE🇻🇳 Vietnam🇧🇴 BO🇰🇭 KH🇪🇪 Estonia🇱🇻 Latvia🇳🇮 NI🇵🇾 PY🇦🇫 AF🇬🇪 GE🇮🇶 IQ🇱🇾 LY🇲🇦 MA🇲🇿 MZ🇲🇲 MM🇾🇪 YE🇧🇯 BJ🇧🇫 BF🇨🇲 CM🇨🇬 CG🇨🇮 CI🇯🇴 JO🇱🇦 LA🇲🇱 ML🇸🇳 SN🇹🇿 TZ🇺🇬 UG🇿🇲 ZM🇿🇼 ZW
Supported Languages (1)▼
English
App Details▼

Calculation is an easy to use, scientific calculator with a copyable expression history. Key features: - Double tap to copy expressions and results -...

iOS App ID
1574468544
Content Rating
4+
Min OS
14.3
Size
0.5 MB
Publisher
Paul Koomey