TT345Metric: Offline geometric and scale calculator for Android
TT345Metric, developed by Ethannn11, is an Android utility for precision measurement and calculation. The app functions as a specialist calculator for scale ratios, golden ratio splits, and geometric area and volume computation, offering unit conversions and module-based organization. It provides instant, real-time results as values are entered and saves calculation history locally for later review. The tool targets architects, graphic designers, students, and DIY enthusiasts who need accurate, organized measurement work on mobile devices.
TT345Metric is a specialist geometry and scale calculation tool
Inside the tool, the emphasis is on architectural and design math rather than general-purpose arithmetic. The app supplies dedicated modules for scale ratio work and a golden split module for golden ratio layouts. It also includes area and volume calculators and unit conversion tools. The interface groups results by module, which aligns calculations to specific tasks and supports quick selection between proportional, volumetric, or conversion workflows.
The app processes data locally and returns instant feedback
Within its operation model, calculations occur without network access; the app operates entirely offline and keeps all results on the device. Input fields give instant, real-time results as values are entered, and the history feature saves entries locally with filtering by module. The developer also provides a zero-advertisements experience, so users do not encounter in-app ad interruptions during entry or review sessions.
The tool fits design-oriented users but has discoverability constraints
For architects, graphic designers, students, and DIYers the app matches tasks that need scale and proportion work, as the developer positions it for those audiences. The app is available on Android through Google Play, requires standard local storage permissions, and shows over 1,000 downloads. However, its listing in the casual games category and the current scarcity of public ratings may affect how easily professionals find and trust the tool.
A practical pick for design-minded Android users with a caveat on discoverability
TT345Metric is a pragmatic choice for architects, designers, and students who prefer a focused mobile calculation tool. However, its placement under a casual games listing and the limited number of visible ratings on Google Play may complicate initial discovery and confidence for some users. For those who prioritize compact, privacy-conscious tooling on Android, the app is worth trying despite those visibility considerations.
