Appstral vs Clavis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Appstral
This app combines astronomical precision, AI-powered interpretations, and advanced time navigation for astrological practice. It offers real-time sky views, solar return calculations, and dynamic transit overlays. An integrated AI copilot provides instant calculations and interpretations.
- AI Astrological Copilot (STELLA)
- Real-time sky navigation
- Advanced Solar Returns
- Dynamic Transits to Natal Charts
- NASA-precision calculations
- Historical ephemerides
- Personalized transits with notifications
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Appstral is the simplest and most insightful way to connect with astrology. Calculate your birth chart in seconds, discover how the sky is moving over your chart today, and get personalized answers from Stella, your AI astrology assistant. Designed for both complete beginners and professional astrologers. STELLA, YOUR AI ASTROLOGY ASSISTANT Ask anything about your birth chart, current transits, or any astrological concept. Stella is not a generic chatbot. She reads your actual chart, performs real astrological calculations before answering, and helps you understand what is happening in your life through the lens of astrology. EVERYTHING YOU CAN DO • Calculate and save birth charts Build your own collection with your chart, your family’s charts, friends’ charts, or clients’ charts. • Explore the sky in real time View the current sky or travel to any past or future date. Enable your location to calculate the exact Ascendant and house positions for any moment. • Receive your astrological forecast Access interpretations of important celestial events and generate shareable images for your stories and social media. • Advanced tools for astrologers Astronomical precision powered by Swiss Ephemeris (JPL), more than a century of historical data, relocated solar returns, transits, progressions, and professional-grade calculations. • Learn astrology as you explore Browse a complete glossary of astrological concepts and discover the Chart of the Day, featuring historical figures interpreted through astrology. FOR BEGINNERS AND EXPERTS Whether you're taking your first steps into astrology or working with it professionally, Appstral brings together the tools, knowledge, and technology needed to explore the same sky through a modern and intuitive experience. Download Appstral and start looking at the sky with new eyes. Terms and Conditions: https://appstral-soporte.com/terminos-condiciones
Clavis
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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. • 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. • Sync across devices — sign in and your calendar and chart settings follow you. Planetary Clock is a subscription app. A monthly or annual plan unlocks everything, with a free trial when your Apple Account is eligible. No ads, and no tracking. 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/
Screenshots
Verdict
The clearest difference is in-app purchases: Clavis at none against Appstral's 3. Clavis also leads on update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement 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
Both are free to download. Appstral sells 3 in-app purchases, starting at $0.99 per month. Clavis asks for nothing beyond the download.
Appstral ships an update every 3 weeks, Clavis every 5 days. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.
| Parameter | Appstral | Clavis |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.2 |
| Further details — not scored | ||
| Size | 43 MB | 24 MB |
| Age rating | 17+ | 4+ |
| Developer | Tomas Rodrigo Sitta | Pedro Henrique Oliveira Sousa |
In-app purchases
Appstral
- Solar Plan$0.991 Month
- Stellar Plan$1.991 Month
- 5 Chart Pack$4.99
Clavis
No in-app purchases








