Eris vs Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eris
Gain personalized astrological insights with your full birth chart. Explore daily transits, moon phases, and planetary movements tailored to your birth details. Understand romantic compatibility and daily energy shifts with clear, meaningful interpretations.
- Personalized birth chart analysis
- Romantic compatibility exploration
- Daily transit tracking
- Moon phase and house insights
- Clear, straightforward interpretations
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Eris is an astrology app that gives you accurate, personalized insights based on your full birth chart. See how today’s sky interacts with your chart. Track daily transits, moon phases, and planetary movements — all tailored to your time, date, and place of birth. With Eris, you’ll get: – Your complete birth chart, including sun, moon, rising, and houses – Explore romantic compatibility with your partner – Daily transits and how they affect your energy – Moon sign, phase, and house insights – Straightforward, useful interpretations without fluff Eris is built for people who want astrology that’s personal, clear, and meaningful — every single day. Start your free trial to unlock your full chart and daily guidance. Eris includes a subscription to access premium features. Privacy Policy: https://www.palasapps.com/astrology-privacy-policy Terms & Conditions: https://www.palasapps.com/astrology-terms-conditions
Sync
This app generates daily relationship insights by comparing birth charts. It offers interpretations on attraction, communication, and tension to encourage thoughtful reflection on interactions. It's designed as a tool for personal awareness and relationship understanding.
- Daily relationship syncs
- Birth chart comparison
- Relationship indicator scores
- Personalized guidance
- Attraction, attachment, communication insights
- Reflection on interactions
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Meet Sync, your love guide. Talk about your partner, your ex or your crush, and get personalized advice based on both your birth charts, today's sky and what you share with Sync. Explore your compatibility, decode mixed signals or prepare for a hard conversation. Ask anything that's on your mind. Just open Sync and start chatting. Sync remembers your story and knows both your birth charts, so you never have to explain everything again. Sync is a tool for reflection and entertainment and does not provide medical, psychological, legal or professional advice. Subscription A subscription is required to chat with Sync. Sync offers weekly and annual auto-renewing subscriptions. Prices are shown in the app before purchase and may vary by country. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel it anytime in your Apple Account settings. Terms of Use: https://adapt-apps.com/conditions/TermsOfUse/ Privacy Policy: https://adapt-apps.com/conditions/PrivacyPolicy/
Screenshots
Verdict
The clearest difference is rating: Eris at 4.8 against Sync's 4.2. Eris also leads on monetization model (free with in-app purchases vs subscription). Sync's advantage is iOS requirement (16.4 vs 18.0). On price, ratings volume, update cadence and ads 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. Eris sells 7 in-app purchases, starting at $4.99 per month and Sync sells 8 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Eris holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 21 and 21 respectively.
Eris ships an update fortnightly, Sync every 2 weeks. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.
| Parameter | Eris | Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (21 ratings) — better | 4.2 (21 ratings) |
| Number of ratings | 21 | 21 |
| Update frequency | Fortnightly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 40 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | Palas Technologies Ltd | Adapt Apps |
Customer experience
Eris
Sync
In-app purchases
Eris
- Eris$4.991 Month
- Eris3 Days trial$4.991 Month
- Eris$8.991 Month
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- Eris$9.991 Month
- Eris3 Days trial$9.991 Month
- Eris$49.991 Year
- Eris3 Days trial$49.991 Year
Sync
- FREE TRIAL3 Days trial$4.997 Days
- Sync Premium (Weekly)$6.997 Days
- FREE TRIAL3 Days trial$6.997 Days
Show 5 moreShow fewer
- Annual with a 3-day free trial$19.991 Year
- Sync Premium (Yearly)$24.991 Year
- Annual with a 3-day free trial3 Days trial$29.991 Year
- Annual with a 3-day free trial3 Days trial$39.991 Year
- Sync Premium (Yearly)$49.991 Year
