Just a Calculator - That Works

Name: Just a Calculator - That Works
Author: OTS App Factory

LiveOTS App Factory2 apps · 5 installsToolsFree · contains adsIn-app purchases: $1.29 per itemjp.tomocalc.app

Precise decimal math, tax, history and sharing, plus Olympic golf scoring.

Alert me ★ Watch Open in Play ↗

Total installs: 5
Installs / day: ~0
Rating: —★
Released: 22 Sept 2026
Last update: 4 Oct 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

Shares data with third parties Location, App activity and 2 others
Collects data Location, Personal info and 4 others
Data is encrypted in transit
You can ask for your data to be deleted

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

6 in 2 groups

1 Sensitive1 Notable4 Routine

What this app can do with your phone

Use your camera to take photos and record videos

CameraSensitive1

Access to your camera to take photos and record video

Use your camera to take photos and record videostake pictures and videos · CAMERA

OtherNotable5

Access to miscellaneous device features that don't fit other categories

Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Make your phone vibratecontrol vibration · VIBRATE
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description

Just a Calculator is built to add, subtract, multiply, divide—and get the answer right. CALCULATOR ESSENTIALS • Addition, subtraction, multiplication, and division • Percentages, square roots, tax in/out, memory, and grand total • Up to 12 integer digits, decimal display, and scientific notation • Decimal arithmetic that avoids familiar binary floating-point surprises in money calculations • F / 4 / 3 / 2 / 1 / 0 / ADD2 decimal settings • CUT / 5/4 / UP rounding modes • Save and switch between up to three tax rates CLEAR INPUT AND RESULTS Thousands separators appear naturally while you type. Results use a monospaced display with a slashed zero. Copy a result or share it as a clean image. CALCULATION HISTORY Save the expression, result, and time on your device. Free use keeps the latest 10 calculations. Ad-Free keeps up to 100 and lets you delete individual entries. The calculator and on-device history work offline. OLYMPIC GOLF SCORING Use the standard mode for up to 4 players or the large mode for up to 100. Enter negative scores, calculate totals, averages, and settlements, keep a results history, and share a results image. Friend Link lets an organizer create an event and invite players with a QR code or invitation code. Participants can share attendance and scores with the organizer. This feature requires an internet connection. SOUND AND HAPTICS Configure key sounds and vibration separately. ADS AND IN-APP PURCHASES The free version displays ads. • Ad-Free: a one-time ¥200 purchase in Japan. It permanently removes ads and unlocks additional key sounds. • Event Plus: ¥200 per month in Japan, automatically renewing. It lets you manage multiple weekend events in the same month. Once purchased, ad-free access remains even after the plan ends. The local price shown by Google Play applies in each country or region. Event Plus renews automatically unless canceled. You can manage or cancel it under Payments & subscriptions in Google Play. Privacy Policy: https://dentaku.otsi.jp/en/privacy/ Terms of Use: https://dentaku.otsi.jp/en/terms/

What's new

• Long-press ％ for margin mode (cost + rate → price, price − rate → cost) • TAX+/TAX− now show the tax and the price on the other side • The memory is kept when you close the app • Calc history now shows every number you entered • Double-tap the result panel to open the calc history • Keys are now colored by role • Fixed M+/M−, calculations typed after =, and A÷B％

Growing in Tools

Category →