Observed arrival · 2026-09-24
MasaApps360’s offline calculators for the trades
A catalog of field calculators and tools for tradespeople, pilots, and other hands-on work.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Tradespeople and pilots needing field calculations
- Worth noticing
- The homepage says all 45 apps have no account requirement; 42 have answered questions, and four are also on Google Play.
Field notes
The catalog groups tools around named tasks such as rolling offsets, sling tension, tank-mix rates, and welding settings. The homepage describes a pay-once model for optional Pro features and says each app page explains what the unlock includes before purchase.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue