BenchSelf vs PlainAstro

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

BenchSelf compared with PlainAstro
Detail	BenchSelf	PlainAstro
What it does	Measure your reaction time and see where you rank against everyone else on the same device	Free birth chart calculator and astrology explained in plain words
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	GB
Pricing model	Free	Freemium
Pricing	Not given	Free birth chart calculator with no sign-up required. Full birth chart reading: $12. Personal 2027 astro calendar: $15.
Key features	Reaction time measurement with five trials and median scoring Device-specific percentile ranking (mouse, trackpad, touchscreen) Exportable score history stored in your browser Embeddable tests for third-party websites Anonymous population distribution comparison without tracking	Accurate planetary positions checked against Swiss Ephemeris within an arc-minute 34,000 birth places with historical time zones Big Three calculator for Sun, Moon and rising signs Rising sign calculator with planetary house system Saturn return calculator Black Moon Lilith calculator Nakshatra calculator for Vedic astrology 2027 sky forecast with Mercury retrograde and eclipse dates All 12 houses explanations Free weekly astrology email by Sun sign
What makes it different	Device-specific rankings that account for hardware differences like screen refresh rate and input latency No accounts, no tracking, and no third-party scripts or advertising Transparent methodology with published reference data sources and clear limitations Fully embeddable tests with no installation or sign-up required Median scoring from multiple trials to reduce noise and account for natural variability	No jargon or mystical fog Honest explanations without flattery Verified against Swiss Ephemeris for accuracy Everyday examples in plain language No sign-up required for basic calculator
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 +1 (up) since last check	30 +4 (up) since last check
Trust Flow (Majestic)	2	1
Citation Flow (Majestic)	22	17
Referring domains (Majestic)	9	5

5 details filled in for both companies.

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