Calculator
Calculate without breaking focus.
Large keys, a history, and local number formatting keep basic calculations quick to check.Try Takar
Calculations & field tools
Technical numbers stay within reach while the job moves.
Takar brings everyday calculations, 34 conversion categories, and field tools together, so technicians don’t have to switch between apps mid-job.
Web early access, in Indonesian · Android in preparation
Takar in one sentence
Calculator, converters, and technical work tools in one easy-to-reach app.
Field techniciansUtility operatorsLaundry teamsEngineering students
Product tour
Six screens.
One workflow.
Swipe, or use the buttons, keyboard, or thumbnails. Autoplay pauses while you’re reading or interacting.
34 conversion categories
Engineering units in one place.
From length and pressure to flow rate, energy, torque, data, textiles, and finance.Try Takar
Digital toolbox
Tools that come along to the field.
A ruler, a bubble level, Laundry, Scientific, Flow, Dosing, electrical, wiring, and visual tools, all from one grid.Try Takar
Dosing timer
Flow rate and target become pump time.
Enter the flow rate and target volume to get a dosing duration you can read at a glance.Try Takar
Wiring simulator
Build the circuit, then run its logic.
The virtual board and the IEC diagram share the same terminal identities and simulation logic.Try Takar
Laundry hub
Formulas, capacity, QC, and production cost, connected.
Laundry calculations are organized by task: dosing, production, QC, sales, and process cost.Try Takar
Slide 1 of 6: Calculate without breaking focus.
How it works
From the first action to a result you can check.
- 01
Choose a workspace
Start from Calculator, Converter, or Tools, depending on the job at hand.
- 02
Enter the numbers
Use units and parameters already grouped for their technical context.
- 03
Check the result
Read the result, its unit, and its context without leaving the main flow.
- 04
Keep working
Move to a related tool without opening another app.
Capabilities
Features grouped by the work they serve.
Calculate & convert
The number tools used every day.
- Basic calculator
- Scientific calculator
- 34 conversion categories
- Currency
Field
Aids for working near machines and utilities.
- Ruler
- Bubble level
- Flow rate
- Dosing Timer
Technical
References and simulations for inspection and learning.
- Power, energy & batteries
- Resistor color code
- Wiring
- Dictionary
- Visual Logic
Laundry
Laundry operations calculations in one hub.
- Dosing & formulas
- Production & capacity
- QC & rewash
- Sales calculator
- Production cost (HPP) calculator
Early access
Try the product now. Android follows when it’s ready.
We don’t show a Play Store button until the official listing is live. For now, the routes you can verify are the web app and the product support page.
FAQ
Before you start.
Is Takar on the Play Store yet?
Not yet. You can try the web version now; Android distribution and the Google Play listing are still being prepared.
Does Takar need an account?
The current web version doesn’t require an ARSTEMA account.
Where are results and preferences stored?
Features that keep a history or preferences use local storage in your browser or on your device.