Period Tools vs Lunara

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Period Tools compared with Lunara
Detail	Period Tools	Lunara
What it does	Free, accurate cycle and period predictor	Free natal chart calculator and astrology tools powered by Swiss Ephemeris
Stage	Startup	Not given
Founded	2026	Not given
Based in	Not given	ES
Pricing model	Freemium	Freemium
Pricing	All calculators and guides are free. Period Tools Pro (optional): $4.99/month or $19.99/year.	Free natal charts and core tools with no sign-up required. Optional paid readings available at user-determined pricing.
Key features	Predicts next 6 periods Calculates ovulation day Identifies fertile window Private on-device tracking Cloud sync for Pro subscribers No signup required	Natal chart calculation with Sun, Moon, Rising and planetary positions Swiss Ephemeris precision for planetary calculations Synastry charts for relationship compatibility analysis Celebrity chart database and lookup Moon phase information Chart of the moment transit information AI-generated personalized astrological readings
What makes it different	No data collection or server storage Uses standard medical calculation methods Honest about limitations and accuracy No aggressive marketing tactics	No sign-up required for basic natal chart generation Free access to all core astrology tools Completely private with optional data deletion User-set pricing for optional paid readings
Community votes	0	0
DR (Domain Rating by Ahrefs)	15 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	20	1
Citation Flow (Majestic)	9	28
Referring domains (Majestic)	77	17

5 details filled in for both companies.

More alternatives to Period Tools More alternatives to Lunara