Astrology · Numerology · Biorhythms
Sothis reads where the sun is, what the date adds up to, and where your three life cycles sit today. Then it gives you one honest score. The diary lets you mark how the day actually went — so you can prove the system on yourself.
Free in early access · No ads, ever · Your data stays on your phone · iOS coming soon
Sothis reads three independent layers and combines them. None of them alone is the answer — together they tell a story.
The Sun moves through twelve signs each year. Half of those signs harmonise with yours — half don't. Sothis shows when the sky is on your side.
Every date reduces to a single number. Compare it to your three core numbers — and watch for the days when they align or oppose.
Three biorhythms — physical (23 days), emotional (28), intellectual (33) — run since the day you were born. Sothis shows them as living waves.
That's all we need to begin. Birth time is optional — used only to disambiguate cusp signs.
A score from 0 to 100, plus a star rating — TOP, STRONG, GOOD, GENTLE, LOW, or REST. With one calm sentence on what the day's good for.
One tap in the diary. Bad / Meh / Good / Great. Over time, Sothis shows your personal hit-rate — the truth about whether the system works for you.
A 90-day map of TOP days, STRONG days, and the ones to watch. So big decisions land on the right side of the cosmos.
We don't ask you to believe us.
We ask you to prove us — on yourself.
Tap one button at the end of each day. Sothis shows you your personal hit-rate over time — how often the verdict matched how the day actually went. If the system doesn't work for you, the numbers will say so plainly. No hand-waving.
No fortune-teller theatrics, no fear-mongering. Just a quiet daily reading you can glance at and move on.
Your birth data and diary entries stay on your phone. We don't harvest your contacts, your location, or your friends.
Astrology and biorhythms are unproven. We say so. The diary is how you find out whether they hold up for you.
Sothis is free while we're in early access. Premium tiers open soon — Founder's Edition first.
Sothis is live on Google Play now. Pop your email below and we'll tell you the moment it lands on the App Store.
We only use your email for launch updates. No newsletters, no resold lists, ever.
No — and we'll tell you that inside the app too. Astrology, numerology, and biorhythms are unproven systems. What Sothis does is apply them consistently, then let you measure the result on your own life. The diary turns "do you believe this?" into "does it actually work for you?"
Your birth date is required. Birth time, name, and partner details are optional. Diary entries stay on your phone. We don't ask for your location, your contacts, or your social accounts. Full detail in our privacy policy.
No catch — and no ads. Free Light keeps the daily verdict, your three biorhythms, a 7-day calendar and the diary, forever. Premium simply adds more: the 90-day calendar map, multiple profiles, smart notifications and PDF export.
Yes — when it opens. Founder's Edition opens later in early access, capped at the first 5,000 lifetime buyers. After 5,000 lifetime purchases, the £29 lifetime price closes permanently and only the subscription tiers remain.
That's exactly what the diary feature is for. Use the app for two or three months, log how each day actually went, and read your personal hit-rate. If your hit-rate is high, the system is doing something for you. If it isn't, you'll know — and we'd rather you know.
Sothis is live now on Google Play — free in early access. iOS is coming next; leave your email above and we'll tell you the day it lands.