Comparison

Clavis vs LuckyGravity

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Clavis

Features
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Planetary Clock is a precise, beautifully simple planetary-hours clock. Since antiquity, each day and night has been divided into twelve unequal hours, each governed by one of the seven classical planets in the Chaldean order. Planetary Clock computes these hours with astronomical accuracy from the true sunrise and sunset in the city you choose. • Current planetary hour — see which planet rules right now, with a live countdown to the next hour. • Apple Watch — the ruling planet and the minutes left in this hour, right on your watch face and in the Smart Stack. Hours are computed on the watch, so it works even when your iPhone is out of reach. • Widgets — the ruling planet and the minutes left in this hour on your Home Screen and Lock Screen, with the hours ahead and the whole day in the larger sizes. • Ruler of the day — the classical planet that governs today. • Upcoming hours — a clear timeline of the planetary hours ahead, from sunrise to sunset and through the night. • Moon phase — the current phase and illumination of the Moon. • Monthly calendar — lunar phases and planetary hours at a glance. • 3D chart — your birth chart rendered in three dimensions, with transits and aspects. • Clavis AI (optional subscription) — ask about the ruler of the hour, today's events or a planet in your chart; nothing is sent until you agree. • Sync across devices — sign in and your calendar and chart settings follow you. Planetary Clock is free: the hours, the calendar, the 3D chart, the widgets and the Apple Watch app need no subscription. The optional Clavis AI subscription, monthly or annual with a free trial when your Apple Account is eligible, adds an assistant that answers questions about your day, the planetary hours and your chart, in the tone of the traditions. No ads, and no tracking. If you prefer not to subscribe, you can support the app with a tip, which unlocks nothing, or with a support pass that unlocks Clavis AI for 30 or 90 days, with no automatic renewal. Signing in with Apple or Google keeps your data in step across your devices. You pick your city by searching for it — the app does not use GPS — and every planetary hour is computed from that city's coordinates and time zone, so the same place is used on every device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

LuckyGravity

Features
Read full description

Find clarity, perspective, and a quiet moment for yourself with LuckyGravity. Ask what’s on your mind, then draw one or three tarot cards to explore your situation from a new perspective. Discover upright and reversed meanings, understand how the cards connect, and unlock deeper personalized interpretations designed to inspire thoughtful reflection. With LuckyGravity, you can: Choose one-card or three-card tarot readings Explore upright and reversed card meanings Receive personalized spread interpretations Discover daily zodiac insights Save your readings and revisit them anytime Enjoy an elegant, calming, and intuitive experience Whether you’re reflecting on relationships, personal growth, decisions, or the day ahead, LuckyGravity gives you a beautiful space to pause, listen to your intuition, and discover new possibilities. Some advanced interpretations may require in-app credits. LuckyGravity is intended for personal reflection and entertainment only. It does not provide medical, legal, financial, or other professional advice.

Screenshots

Clavis4 screens
LuckyGravity4 screens

Verdict

The call

The clearest difference is device support: Clavis at 3 against LuckyGravity's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Clavis sells 5 in-app purchases, starting at $4.99 per month and LuckyGravity sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Clavis ships an update every 4 days, LuckyGravity weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 5 level
Clavis versus LuckyGravity: the parameters behind the verdict, then further details
ParameterClavisLuckyGravity
PriceFreeFree
Update frequencyEvery 4 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.217.0 — better
Further details — not scored
Size43 MB36 MB
Age rating4+17+
DeveloperPedro Henrique Oliveira SousaJIANTAO WENG

In-app purchases

5 purchases

Clavis

Subscriptions2
  • Clavis AI Monthly3 Days trial$4.991 Month
  • Clavis AI Yearly3 Days trial$29.991 Year
One-time3
  • Tip$1.99
  • Support + 30 days of AI$5.99
  • Support + 90 days of AI$14.99
3 purchases

LuckyGravity

One-time3
  • 100 Points$0.99
  • 500 Points$3.99
  • 1200 Points$7.99

Questions

Is Clavis free?
Clavis is free to download, with in-app purchases available.
Is LuckyGravity free?
LuckyGravity is free to download, with in-app purchases available.
Do Clavis or LuckyGravity have ads?
Neither Clavis nor LuckyGravity shows ads.
Which is updated more often, Clavis or LuckyGravity?
Clavis ships an update every 4 days, and LuckyGravity weekly. Most recently, Clavis was updated on November 5, 2026 and LuckyGravity on October 31, 2026.

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