AstroEmotion vs Rytha
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
AstroEmotion
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AstroEmotion - Recording the Universe of Emotions What color is your emotion shining in the starry sky today? AstroEmotion is a cosmic network where you can visualize your daily emotions as beautiful, glowing stars and share your heart's frequency with neighbors worldwide in real-time. [Key Features] Create Your Emotion Star (My Star) Express your day using our 8-direction emotional wheel. Charge up your energy, give birth to your custom star, and launch it into the dark cosmic sky. Real-time Cosmic Galaxy (Cosmos) Watch stars lit by global users sharing the same moment. See a dynamic galaxy mapped by geographic distance, from nearby neighbors to stars across the globe. Send warm energy points or exchange anonymous whispers to connect with other stargazers. Visual Wave of Your Heart (Rhythm) Track your emotional records through daily wave line charts and monthly calendar view. Gently balance the natural flow of your feelings by visualizing your mood history. Take a moment to look up at the universe. Match your emotional frequency and find comfort in the starlight with AstroEmotion.
Rytha
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Rytha accompanies your everyday life ā quietly, on your own device. Follow your personal biorhythm for body, soul and mind, note what matters in your diary, and see how sun and moon shape your day. On your own, or together with a partner. WHAT RYTHA GIVES YOU ⢠Biorhythm cards for body, soul and mind, with the trend compared to yesterday ⢠A personal diary: a thought, a mood, a photo ā ā as much or as little as you like ⢠History and calendar, so you can see how your days connect ⢠Sky calendar for your location: sunrise and sunset, moon phase and illumination, zodiac sign ⢠Name days from the German calendar ⢠Profiles for several people, and an optional link between two profiles to view their rhythms side by side ⢠A personal review as a PDF you can keep or share ⢠Home Screen widget for a glance at today ⢠App lock with Face ID, Touch ID or your device passcode ⢠Backup and restore, as a file you control YOUR DATA STAYS YOURS Rytha keeps your profiles, diary entries and attachments only on this device. There is no account, no cloud sync, and none of your data is sent to external servers. A backup is a local file ā you decide where it goes and who sees it. Your location is used solely to calculate sun and moon times, and only after you allow it. PREMIUM, WITHOUT A SUBSCRIPTION The personal PDF review and linked partner profiles are Premium features. Buy once, keep it forever. No subscription, no recurring charges. A NOTE ON BIORHYTHM Biorhythm curves are calculated from your date of birth using fixed cycles. They are an aid for reflection, not a scientific measure. Rytha is not a medical app and does not give health advice.
Screenshots
Verdict
The clearest difference is in-app purchases: AstroEmotion at none against Rytha's 1. AstroEmotion also leads on iOS requirement (16.6 vs 18.0). Rytha's advantage is ads (none vs shown) and update cadence (every 4 days vs every 11 days). On price and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Rytha sells 1 one-off in-app purchase. AstroEmotion asks for nothing beyond the download.
AstroEmotion ships an update every 11 days, Rytha every 4 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.
| Parameter | AstroEmotion | Rytha |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days | Every 4 days ā better |
| Ads | Yes | No ā better |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 ā better | 18.0 |
| Further details ā not scored | ||
| Size | 28 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | JOONG HWA LEE | Thomas Stahmer |
In-app purchases
AstroEmotion
No in-app purchases
Rytha
- Rytha Premium$5.99









