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Birth charts & compatibility

Ember integrates astrology features that calculate birth charts based on Western zodiac coordinates.

Generate deep personality summaries or calculate compatibility scores between you and any contact. These features are powered by AI and require a Pro or Ultra subscription.

Input birth details

  1. Open a contact details page and go to Birthday & Zodiac.
  2. Tap View birth chart. If Ember needs more data, the Birth Chart sheet opens with the birthday already filled in.
  3. Enter Birth time and Birth place if you know them. If the city is not found, use Enter coordinates manually to enter latitude and longitude.
  4. Tap View birth chart to calculate the free chart from the confirmed birth data.
9:41
Birth Chart
Birth info
1992-06-02
08:45
Hanoi, Vietnam
Birth Chart
Birthday
June 2, 1992
Birth time (HH:MM) (optional)
14:30
Birth place (optional)
Add birth place
No birth time → still works but shallower.
The Birth Chart sheet confirms the birthday and lets you add birth time, birth place, or manual coordinates before calculating the chart.

Generate a personality reportPro feature

  1. After the free chart is ready, stay on the Birth Chart screen.
  2. Tap Analyze Personality (10 points).
  3. If Ember asks for point confirmation, review the cost before choosing Analyze.
  4. Keep the connection stable while Ember generates the AI report.
  5. Read the report sections such as Ego, Outer personality, Work, Love, Family, and Money.
9:41
Birth Chart
Birth info
1992-06-02
08:45
Hanoi, Vietnam
Birth chart detail
PlanetSignHouse
·
Ascendant
♎︎Libra
—
☉︎
SunSelf
♊︎Gemini
9
☽︎
MoonInner world
♋︎Cancer
10
☿︎
MercuryCommunication
♊︎Gemini
9
♀︎
VenusLove
♊︎Gemini
9
After the free chart is calculated, the personality analysis button spends 10 Ember Points to generate the AI report.

Personality analysis costs 10 Ember Points per request and is available for Pro and Ultra subscribers.

Read the detailed chart tablePro feature

  1. On the Birth Chart screen, open Birth chart detail.
  2. Read the table columns: Planet, Sign, and House.
  3. Check placements such as Sun, Moon, Mercury, Venus, Mars, and Ascendant.
9:41
Birth Chart
Birth info
1992-06-02
08:45
Hanoi, Vietnam
Birth chart detail
PlanetSignHouse
·
Ascendant
♎︎Libra
—
☉︎
SunSelf
♊︎Gemini
9
☽︎
MoonInner world
♋︎Cancer
10
☿︎
MercuryCommunication
♊︎Gemini
9
♀︎
VenusLove
♊︎Gemini
9
♂︎
MarsDrive
♈︎Aries
7
The detailed table shows each planet, zodiac sign, and house used by the report.

Run a compatibility analysisPro feature

  1. Make sure both your profile and the contact have computed birth charts.
  2. On the contact's Birth Chart screen, tap Compatibility (10 pts).
  3. Optionally enter the Relationship context and add a Focus for the analysis.
  4. Confirm the 10 Ember Points spend and choose Analyze.
  5. Review the AI report sections: Overall, How you relate, How to interact, and Advice.
9:41
Birth Chart
Birth info
1992-06-02
08:45
Hanoi, Vietnam
Ego
The Sun in Gemini makes Emily curious, quick to connect ideas, and comfortable starting conversations.
Outer personality
Love
The Compatibility action appears at the bottom of a completed Birth Chart report.
9:41
Compatibility
Overall
Compatibility
Relationship
Wife
Focus (optional)
Anything specific you want to explore?
92 points left today
The Compatibility sheet confirms the relationship context, optional focus, and 10 Ember Points spend.

Compatibility analysis costs 10 Ember Points per calculation and is available for Pro and Ultra subscribers.

On this page

Which astrological system does Ember use?

Ember calculates birth charts strictly using the Western zodiac system (from Aries to Pisces). Eastern lunar calendar (tử vi) is not supported.

Is a birth time required?

No, but entering an exact birth time calculates the correct houses and Ascendant (Cung Mọc), resulting in a much more accurate report.