birthchart.io vs CalcBloc

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

birthchart.io compared with CalcBloc
Detail	birthchart.io	CalcBloc
What it does	Birth chart calculator	Free source-checked paycheck and tax calculators with every rate linked to official sources
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	IN
Pricing model	Free	Free
Pricing	Not given	The calculators are free to use and do not require an account.
Key features	Calculate Sun, Moon and rising signs Shows ten planets and aspects Multiple house systems available Private data processing on device Save birth details to browser Support for unknown birth times Historical time zone handling	Paycheck and income tax calculators for US and 12 other countries Every rate linked to official tax agencies Calculations tested against official worked examples Source documentation with retrieval dates for every figure
What makes it different	Calculated entirely on your device with no cloud storage No account or login required Uses Astronomy Engine for precise geocentric calculations Explains astrological concepts and limitations	Every rate is sourced from official tax agencies with links to original documents All figures are dated and checked for accuracy against official methods Transparent about gaps where data is not yet verified Covers 15 countries with a unified approach to transparency Plain English explanations alongside all calculators
Community votes	0	0
DR (Domain Rating by Ahrefs)	4 +2 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	4	0
Citation Flow (Majestic)	12	0
Referring domains (Majestic)	3	0

4 details filled in for both companies.

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