Time Calculator: Add, Subtract

Phan Nhat Đang · iOS

Time Calculator: Add, Subtract

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

Paid-ad activity not yet verified
Compare appsMy watchlist

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

Time Calculator: Add, Subtract screenshot 1Time Calculator: Add, Subtract screenshot 2Time Calculator: Add, Subtract screenshot 3Time Calculator: Add, Subtract screenshot 4Time Calculator: Add, Subtract screenshot 5Time Calculator: Add, Subtract screenshot 6

03 / Market context

The business behind the app.

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

How Much Does Time Calculator: Add, Subtract Make?

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

Platform Performance

🍎iOS
Revenue
$1.0K
Downloads
1.0K
Rating
4.6 ★(158)

Rating Distribution

4.6
★★★★★
158 reviews
5
4%
4
3%
3
4%
2
6%
1
84%

Top Countries

🇰🇷 KR🇵🇱 PL🇫🇷 FR
Reviews (3)▼
★★★★★Scott Accounting1/10/2026
Accuracy Matters

Excellent calculator for small business

★☆☆☆☆jaterm8/6/2025
Can subtract time for free

You can’t even subtract a time period from a set time unless you buy the pro version. I knew the free version would have ads and probably some features would be locked. But I still expected the free version to have all of the BASIC functionality of a “time calculator” (i.e., add AND subtract time).

★★☆☆☆sinful Angel 11/12/2025
Not working

I used to be able to add between two different times. And now each time I go and use it it keeps saying invalid start time when it never did that before. And it’s only when I paid for the full version so I don’t understand how now all of a sudden it’s not working. I want my money back and I’ll take the free version again because at least the free version actually worked. Update: I’m thought I’d give it another shot but, it STILL DOESNT WORK

Version History (3)▼
1.2.08/7/2023
1.1.07/17/2023
1.09/14/2021
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 (20)▼
CzechDanishDutchEnglishFrenchGermanHIIndonesianItalianJapaneseKoreanMalayPolishPortugueseRussianChineseSpanishSwedishThaiVietnamese
App Details▼

Use this App to solve time problems. We offer many different types of calculations: - Add Or Subtract Two Time Values - Add Or Subtract From A Start...

iOS App ID
1583726955
Content Rating
4+
Min OS
13.0
Size
7.1 MB
In-App Purchases
Yes
Publisher
Phan Nhat Đang
Vi

In-App Purchases (1)

NamePriceType
Unlock all features$3.99One-time