This page is designed to help you find out whether CosmyDay is good and if it is the right choice for you.
CosmyDay is a free astrology platform for people who want insight based on their own chart, not generic sun-sign copy.
Every calculation runs on Swiss Ephemeris — the same ephemeris used by professional astrology software — so planetary positions are astronomically accurate rather than approximated. Charts use the tropical zodiac and Placidus house system, with Whole Sign fallback above 66° latitude.
FREE TOOLS
Natal chart calculator — full wheel with 14 bodies (Sun through Pluto, plus North/South Node, Chiron and Lilith), house placements, aspects with standard orbs, and plain-English interpretation of each placement Synastry compatibility calculator — cross-chart aspect analysis between two birth charts with love, friendship and work scoring Daily, weekly and monthly horoscopes for all 12 signs, generated from actual sky conditions rather than recycled text Shareable chart links — send your natal chart or a compatibility result to someone without either of you creating an account Free personalized transit calendar delivered by email
REFERENCE LIBRARY Twelve sign profiles, 120 planet-in-sign placement guides, 78 compatibility pairings plus gender-specific variants, a two-year monthly horoscope archive, and a blog covering retrogrades, lunations and major transits.
PERSONALIZED REPORTS ($19.90–$29.00) Optional in-depth readings — Love, Career, Wellness, Soul Purpose and Year Ahead — built from your own birth chart and delivered as a PDF by email. Compatibility reports are available with add-on chapters. One-time purchase: no subscription, no recurring billing, no auto-renewal.
NO ACCOUNT REQUIRED No registration, no password, no app install. Enter a birth date, time and place and get a result immediately. Birth data is cached locally in your browser so you don't retype it on every page.
CosmyDay is an independent, self-funded project. Free features are permanent, not time-limited trials.
Listed in
Natal Chart Calculation
natal chart
Compatibility Checker
high calculation effort
Horoscope
very precise calculation
CosmyDay computes everything from real astronomical data instead of serving pre-written zodiac filler.
Swiss Ephemeris under the hood — the same ephemeris professional astrologers use. Tropical zodiac, Placidus houses, Whole Sign fallback above 66° latitude. 14 bodies including North/South Node, Chiron and Lilith. Horoscopes generated from the actual sky — each daily, weekly and monthly forecast is built from the real transits for that period, then written in plain English. Nothing is recycled from last year. No account, ever — no registration, no password, no app. Enter birth date, time and place and get the result. Data is cached in your browser so you don't retype it. Shareable chart links — send a natal chart or compatibility result to someone and they see it instantly, without signing up either. Free means free — the calculators and horoscopes aren't a trial. Paid reports are optional one-time purchases with no subscription and no auto-renewal.
Most astrology apps ask for an account, an install and a recurring subscription before showing you anything meaningful. CosmyDay inverts that.
Accuracy you can check. Many free astrology sites approximate house cusps or skip minor bodies entirely. CosmyDay runs full Swiss Ephemeris calculations with standard aspect orbs — conjunction 8°, sextile 6°, square 7°, trine 8°, opposition 8°. Zero friction. No signup wall, no email gate on the calculators, no push-notification nag. Honest billing. The astrology app category is full of $9.99/week auto-renewing traps. CosmyDay sells one-time reports ($19.90–$29.00) delivered as PDFs. Nothing renews. Interpretation, not just a chart image. Free calculators explain what each placement and aspect actually means, rather than dumping a wheel and upselling the explanation. Depth for the curious. 120 planet-in-sign guides, 78 compatibility pairings plus gender variants, and a rolling monthly horoscope archive — usable as a reference library, not just a one-visit toy.
English-speaking readers in the US, UK, Canada and Australia — predominantly women aged 20–45, with strongest engagement in the 25–35 range.
They fall into three overlapping groups:
Relationship-curious — arrive via compatibility and synastry, usually after meeting someone new or trying to make sense of an existing dynamic. Self-understanding seekers — arrive via natal chart, treating astrology as a reflective framework rather than literal prediction. Overlaps heavily with journaling, therapy and personal-development audiences. Daily-ritual readers — check a horoscope as part of a morning routine, low-commitment and high-frequency.
Skew toward mobile, social-first discovery (TikTok, Pinterest, Instagram), and people who consider astrology meaningful-but-not-dogmatic — a lens for thinking, not a religion.
CosmyDay started as a technical frustration. Nearly every free astrology site online either produced sloppy calculations or wrapped decent math in a subscription funnel that demanded a card before showing anything useful.
The premise was simple: if the ephemeris math is done properly and the interpretations are written clearly, the free tools should be genuinely good on their own — and people who want depth will pay for a report because they want it, not because a paywall trapped them.
The engine was first built and validated on a Russian-language sister project, where real users proved that people care far more about their own natal chart than about generic sign content. CosmyDay is the rebuilt English-language version of that engine, with a cleaner architecture and a US-focused content library.
It remains an independent, self-funded project run by a small team, with no investors and no ad networks shaping what gets published.
Frontend: Next.js (App Router) with TypeScript and React, statically generated and deployed on Vercel. ~500 pre-rendered pages plus on-demand ISR for the horoscope archive. Backend: Python with FastAPI, running on a dedicated Hetzner server behind systemd. Astronomy engine: Swiss Ephemeris via pyswisseph — all chart, transit and synastry math. Content generation: LLM-assisted interpretation writing on top of computed sky data, with an automated validation layer checking word count, jargon and temporal accuracy before anything is published. Data: SQLite for orders and subscribers; JSON content files baked into the frontend at build time. Payments & delivery: PayPal REST API; transactional email via Resend; PDF report generation server-side. Analytics & indexing: Google Analytics 4, IndexNow for near-instant search-engine indexing, MaxMind GeoLite2 for country-level traffic enrichment.
CosmyDay is a direct-to-consumer product, not B2B — there are no enterprise accounts or named clients to list. Customers are individual readers buying personalized reports for themselves or as gifts.
If SaaSHub requires a non-empty answer here, that paragraph is the safest thing to submit; leaving it blank is also fine and won't hurt the listing. Verify the team-size wording in #4 against how you want to present the project publicly.
We have collected here some useful links to help you find out if CosmyDay is good.
Check the traffic stats of CosmyDay on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of CosmyDay on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of CosmyDay's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of CosmyDay on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about CosmyDay on Reddit. This can help you find out how popualr the product is and what people think about it.
Do you know an article comparing CosmyDay to other products?
Suggest a link to a post with product alternatives.
Is CosmyDay good? This is an informative page that will help you find out. Moreover, you can review and discuss CosmyDay here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.