CALZOM

CALZOM brings a calculator, unit converters and a sourced formula library into one app. No account, works offline, your data stays on your device. Ad-free with Premium.

Status: Released
Category: Tools
Last updated: Aug 16, 2026

Google Play labels:

Contains ads
In-app purchases

Ad-free with Premium.

com.softcloud.calzom

Screenshots

From the app

On Google Play

What’s inside

5 calculator modes, 12 unit converters and 17 verified formulas across 6 disciplines.

Calculator modes
- Standard
- Scientific (trig, inverse and hyperbolic, log/ln, degrees/radians, π and e)
- Percentage
- Date & time
- Tip and bill split
Unit converters
- Length
- Mass
- Temperature
- Area
- Volume
- Speed
- Time
- Digital storage
- Angle
- Pressure
- Energy
- Power
Formula library
- A “Verified” badge on every formula, linked to standards sources such as NIST/ISO
- Step-by-step derivation with “Show the work”
More
- Unified search
- Favorites and history
- Light and dark theme
- Screen reader labels
- 10 languages (EN, TR, DE, ES-LATAM, FR, HI, ID, JA, PT-BR, RU)
- No account or sign-in, data stays on your device
- Ad-free with Premium
How it’s built
- Kotlin Multiplatform: shared code plus an Android layer
- Jetpack Compose (Material 3)
- Google Play Billing and AdMob

Privacy

Source: the CALZOM privacy policy. Rows taken from the Play declaration are marked.

Stays on your device

CALZOM has no servers of its own.

Calculation history, favorites and settings
Premium status and purchase record
No analytics or crash reporting

May be processed by third parties

Google services follow their own policies.

Advertising ID in rewarded ads (Google AdMob)
Purchases go through Google Play Billing
Device or other identifiers may be collected and sharedPlay declaration (opens in a new tab)
Where required, ad consent is requested and can be changed in Settings