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DOUBLE U s.r.o. · Utilities · United States store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card
Revenue a month, worldwide EST
$653
Likely $218 to $2K
New ratings
Tracking
Daily counts start building from today
Rating
4.7 of 5
288 ratings in this store
Countries it ranks in
0
was 0 on Oct 16, 2026

Revenue

Estimated from the grossing charts of Oct 23, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$7.8K
7.2 new ratings a month on average since launch
EST. LIFETIME DOWNLOADS
10.1K to 28.8K
Estimated from ratings count
WHERE ITS USERS ARE · SHARE OF RATINGS
  • United States 288 ratings42%
  • Germany 142 ratings21%
  • United Kingdom 87 ratings13%
  • France 35 ratings5%
  • Australia 34 ratings5%
  • Canada 24 ratings3%
  • India 19 ratings3%
  • Mexico 17 ratings2%
HOW SURE ARE WE
Not in any grossing chart, so this comes from ratings growth (7.2 new ratings a month on average since launch): revenue grows with new ratings, more slowly for apps that collect ratings fast. Tested on 418 apps with verified revenue: typically off by about 2 times, and big earners tend to come out low. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
288
AVG RATING
4.69
PRICE
Free
AGE
8.0y
LAST UPDATE
179d ago
VERSION
1.11
SIZE
28 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
0 / 30
COUNTRIES NOW
0 (was 0)
EST. REVENUE FROM CHARTS, DAILY · APP STORE ONLY EST
Show daily values
Sep 24, 2026not in a grossing chart
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Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
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Oct 22, 2026not in a grossing chart
Oct 23, 2026not in a grossing chart
Best rank Sep 24, 2026: not ranked. Now: not ranked. Days at zero are days outside every grossing chart.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
4 purchases listed
  • Premium Yearly$4.99
  • Remove Ads$9.99
  • Remove Ads$6.99
  • Remove Ads$19.99
Top in-app purchases as listed on the App Store, in local prices.
REVIEW MOMENTUM
0.1 reviews / week
  • Trendrising
  • Recent reviews average3.8 stars
  • Recent 1 and 2 star share24%
From the latest 25 written reviews, covering 2850 days.
RELEASE CADENCE
0 updates in 90 days
  • Typical gap between releases169 days
From the last 12 versions listed on the App Store.
RATING BREAKDOWN
288 ratings
5★87%
4★5%
3★2%
2★1%
1★5%

What users want

From the latest 25 reviews on the United States App Store, Jan 4, 2019 to Mar 4, 2026: 24% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS

No common theme in the bad reviews, or they aren't in English.

WHAT THEY ASK FOR

No feature requests in the latest reviews.

WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Easy to use18%

3 of the 4 and 5 star reviews.

★★★★★ Super simple aand easy to use 👍
★★★★★ Easy to use and nice to have
Accurate, great results18%

3 of the 4 and 5 star reviews.

★★★★★ Does just what I need it to do! Super simple aand easy to use 👍
★★★★★ Works great, I'm just too poor for the ad removal, so when I'm switching back and forth, I get a lot of them.
Useful, it helps12%

2 of the 4 and 5 star reviews.

★★★★★ I'm a truck driver this app helps me out a whole bunch.
★★★★★ So helpful for my time card at work converting .
Worth the money12%

2 of the 4 and 5 star reviews.

★★★★★ I know app creators have to make their money and all, and this one would be worth it for sure, but I'm only gonna do 4 stars ONLY because it has ads.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, United States App Store.

★★★★★Mar 4, 2026
ads much worse?

ads have gotten unbearable recently. i never used to have any issues but i had six ads within thirty seconds

★★★★★May 9, 2025
Best dang calculator

Best times and regular calculator I’ve found better than the regular iPhone calculator

★★★★★Feb 4, 2025
Great app but….

I paid for the $4.99 per year subscription so the ads would be removed. However when the app renewed the subscription the ads started even though I paid for another year!

★★★★★Aug 11, 2024
⭐️⭐️⭐️⭐️⭐️

wow

★★★★★Jul 3, 2024
Works great!

Does just what I need it to do! Super simple aand easy to use 👍

★★★★★Jul 1, 2024
Just what I needed

Great app! For literally decades I’ve been figuring pace per run and average pace with paper and pen and a regular calculator. Ugh! This is so easy. And accurate.

Store screenshots

ScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshot

App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

Apple's ad repository couldn't be reached right now. Try again later.

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

time8time based3based calculations3time values3calculations3calculator2based2perform2values2formats2user2

What's new in 1.11

• New Ans button to reuse the last result • Create notifications directly from calculated time results • Choose how many decimal places are shown in results • Decimal button toggles between decimal and standard representation • Select a default format for the "now" button If there is a problem, please let us know via the app menu. If you like the app, please leave a positive review. Thank you for all the feedback, reviews, and support.

Released Nov 9, 2018. Current version shipped Apr 27, 2026.

Store description

Introducing the upgraded Time Calculator app – your ultimate tool for seamless time-based calculations! Time Arithmetic Made Easy: Perform mathematical operations with time values like addition, subtraction, multiplication, division and more. No more struggling with complex time conversions – let our app handle the math for you. Flexible Time Formats: Input and display time values in various formats, including days, hours, minutes, and seconds. Customize the format that suits your preference or matches your specific needs. User-Friendly Interface: Designed for both simplicity and functionality, modelled after the native iPhone calculator, our app ensures a smooth user experience, regardless of your familiarity with time-based calculations. You can perform calculations such as: 1h 45m + 3h 20m 2h 38m x 2 8h - 1h 11m 14h ÷ 4 Terms of Use: https://doubleuapp.com/privacy/terms.html

See this store page in another country

Prices, ranks and reviews are per country. Revenue above is already worldwide.

United KingdomGermanyJapanBrazilIndia

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