Twin-Calc Downloads & RevenueTwin-Calc · App Store
Twin-Calc is #53 in Utilities Paid in Russia and charting in 2 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperHiroyuki Ueda
CategoryUtilities
Price2.99 AUD
Released
Rating★ 0.0 (0)
Version3.0.1
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)5k+ worldwide
📈Entered the top 100📈Charting in a new country💰Price rise✏️New screenshots📦Updated to version 3.0.1📦First update in 269 days🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 15 events
- 📈Twin-Calc entered the top 100Top Paid · Utilities · AU
- 📈Twin-Calc charting in a new countryAustralia
- 📈Twin-Calc entered the top 100Top Paid · Utilities · RU
- 📈Twin-Calc charting in a new countryRussia
- 📈Twin-Calc entered the top 100Top Paid · Utilities · FR
- 📈Twin-Calc charting in a new countryFrance
- 💰Twin-Calc: price rise150.00 JPY → 300.00 JPY · JP
- ✏️Twin-Calc: new screenshots5 screenshots (was 5) · JP
- 📦Twin-Calc updated to version 3.0.1- Added support for iPhone Duo.
- Optimized layouts for folded, partially unfolded, and fully unfolded modes.
- Improved the font sizes and positioning of expressions and calculation results.
- Fixed minor bugs and improved stability.
- Added a feature that notifies you when a new version of the app is available.… more - ✏️Twin-Calc: needs a newer iOSiOS 13.0 → iOS 15.0
- 📦Twin-Calc: first update in 269 days
- 📦Twin-Calc updated to version 3.0.0- Added support for iPhone Duo.
- Improved layouts for different screen sizes and orientations.
- Adjusted the positioning of calculation expressions and results.
- Fixed display issues on certain devices.
- Improved overall stability and fixed minor bugs.… more - 🆕Twin-Calc first spotted by AppInsider#31 in Top Paid · Utilities · Japan
- 📦Twin-Calc version 2.7.4• Calculation formulas and results are now preserved even after closing the app
• Your previous calculations are restored when you reopen the app
• Improved stability and minor bug fixes - 🆕Twin-Calc released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Best rank now
#53
Utilities PaidMeasured
Twin-Calc on the App Store
App details
App ID
1619292082
Publisher
Hiroyuki Ueda
On the store since
Apr 2022
4 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
5
EN JA KO ZH ZH
Size
1 MB
Also listed in
Productivity
Twin-Calc downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Twin-Calc's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Russia | UtilitiesPaid | #53 |
 Australia | UtilitiesPaid | #72 |
Apps near Twin-Calc on the chart
Utilities Paid, around #53.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.1★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
46/100
faster than 43% of Utilities apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Twin-Calc
A simple and easy-to-use calculator app that combines two calculators into one.
Calculators are displayed side by side when the screen is horizontal, and vertically when the screen is vertical.
In addition to being able to perform separate calculations with each calculator, calculation results can be also copy and paste with one touch, so you can perform other calculations during calculations, making it even more convenient to use than you might imagine.
There is also a free version with ads. Please try it first.
https://apps.apple.com/jp/app/t-calc-lite/id1630026837?l=jp
【feature】
1. Calculation results can be copy and paste between two calculators with one touch.
2. The result calculated can be input from one calculator to the other with one touch.
・When press the "→" key, the calculation result of the left calculator is entered at the end of the formula on the right calculator.
・When press the "←" key, the calculation result of the right calculator is entered at the end of the formula on the left calculator.
3. add, subtract, multiply and divide is performed.
Do multiplication and division first, then add and subtract.
4. Display the formula
The entered formula is displayed under the result, so you can easily check the operations.
5. Calculation results can be copied to iPhone’s memory
Calculation results can be pasted into other apps as text , so transcription errors will not occur.
Example of use
When you find a product for 988 yen for 3 pieces and a product for 1245 yen for 4 pieces while shopping, you can easily calculate "Which is cheaper?" And “How cheaper?"with this calculator.
1) Use the left and right calculators to find the unit price of the product (unit price = product price/number).
2) Tap the "- key" and "arrow key" on either the left or right calculator to calculate the unit price difference.
Limitations
・Answer can be calculated up to 9 digits, minimum 0.000000001.
Note
The free version can be downloaded from
https://apps.apple.com/jp/app/t-calc-lite/id1630026837?l=en
Calculators are displayed side by side when the screen is horizontal, and vertically when the screen is vertical.
In addition to being able to perform separate calculations with each calculator, calculation results can be also copy and paste with one touch, so you can perform other calculations during calculations, making it even more convenient to use than you might imagine.
There is also a free version with ads. Please try it first.
https://apps.apple.com/jp/app/t-calc-lite/id1630026837?l=jp
【feature】
1. Calculation results can be copy and paste between two calculators with one touch.
2. The result calculated can be input from one calculator to the other with one touch.
・When press the "→" key, the calculation result of the left calculator is entered at the end of the formula on the right calculator.
・When press the "←" key, the calculation result of the right calculator is entered at the end of the formula on the left calculator.
3. add, subtract, multiply and divide is performed.
Do multiplication and division first, then add and subtract.
4. Display the formula
The entered formula is displayed under the result, so you can easily check the operations.
5. Calculation results can be copied to iPhone’s memory
Calculation results can be pasted into other apps as text , so transcription errors will not occur.
Example of use
When you find a product for 988 yen for 3 pieces and a product for 1245 yen for 4 pieces while shopping, you can easily calculate "Which is cheaper?" And “How cheaper?"with this calculator.
1) Use the left and right calculators to find the unit price of the product (unit price = product price/number).
2) Tap the "- key" and "arrow key" on either the left or right calculator to calculate the unit price difference.
Limitations
・Answer can be calculated up to 9 digits, minimum 0.000000001.
Note
The free version can be downloaded from
https://apps.apple.com/jp/app/t-calc-lite/id1630026837?l=en
Latest updates
3.0.1
- Added support for iPhone Duo.
- Optimized layouts for folded, partially unfolded, and fully unfolded modes.
- Improved the font sizes and positioning of expressions and calculation results.
- Fixed minor bugs and improved stability.
- Added a feature that notifies you when a new version of the app is available.
3.0.0
- Added support for iPhone Duo.
- Improved layouts for different screen sizes and orientations.
- Adjusted the positioning of calculation expressions and results.
- Fixed display issues on certain devices.
- Improved overall stability and fixed minor bugs.
2.7.4
• Calculation formulas and results are now preserved even after closing the app
• Your previous calculations are restored when you reopen the app
• Improved stability and minor bug fixes
Store changes
What Twin-Calc changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Price rise
150.00 JPY → 300.00 JPY
New screenshots
5 screenshots (was 5)
Needs a newer iOS
iOS 13.0 → iOS 15.0
