Classification
Level 0:
Price: Free
Authentication: No
Database: Local Storage
Storage: NA
Ex. apps: Fuel Logger, Private Contacts, SizeOfCars.com, TrueSizeOf, Music Shakers
Level 1:
Price: Free, Ads, Ad-Free Subscription.
Authentication: No
Database: Local Storage, Native Cloud
Storage: NA
Ex. apps: —
Level 2:
Price: Free, Feature Subscription
Authentication: Yes
Database: Firestore
Storage: Cloud Storage
Ex. Apps: Mapulator, Trails, Link & Bio
Level 3:
Price: Free, Feature Subscription
Authentication: Yes
Database: Firestore, PostgreSQL
Storage: Cloud Storage
Ex. apps: Poller (Q3 2026)
Level 4:
Price: Free, Feature Subscription
Authentication: Yes
Database: Firestore, PostgreSQL
Storage: Cloud Storage
Model: SaaP
Ex. apps: NewCommerce (Q4 2026)
Level 5:
Price: Free, Feature Subscription
Authentication: Yes
Database: Firestore, PostgreSQL
Storage: Cloud Storage
Model: Licensing, SaaP
Ex. apps: Local Apps (Q3 2027)
