Snapchat automatically assigns heart-shaped emojis next to the usernames of certain contacts. These icons are not decorative: they represent an algorithmic calculation based on the frequency and reciprocity of snap exchanges between two accounts. Three heart colors coexist (yellow, red, pink), each corresponding to a specific level of duration and relational intensity.
How the Snapchat algorithm assigns a heart to a contact
The system is based on a simple principle: Snapchat compares, for each user, the volume of snaps sent and received with each of their friends. The contact with whom the exchanges are the most numerous, in both directions, receives the status of best friend #1.
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This ranking is recalculated continuously. A heart can appear or disappear from one day to the next if sending habits change. Contrary to what the fixed display of an emoji suggests, the Snapchat heart is a dynamic indicator, not a permanent badge.
Only snaps (photos and videos) count in this calculation. Text messages sent in chat do not factor into the formula. Two people who only communicate in writing will never see a heart appear, regardless of the frequency of their conversations. An article detailing the meaning of hearts on Snapchat revisits this reciprocity mechanism.
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Yellow, red, and pink hearts on Snapchat: the three levels explained
Each heart color corresponds to a specific time threshold in the exchange relationship between two accounts.
The yellow heart: mutual best friend status
The yellow heart (Besties) appears as soon as two users become each other’s mutual best friend #1. This status means that each sends more snaps to the other than to any other contact, and vice versa.
The yellow heart is the first level. It can be established within the first few days of sustained exchanges. Its lifespan depends entirely on maintaining this reciprocity: if one of the two starts sending more snaps to a third party, the yellow heart disappears.
The red heart: two weeks of consistency
The red heart (BFF) replaces the yellow heart when the mutual best friend #1 status is maintained for at least two consecutive weeks. The transition from yellow to red requires no special action, just consistency.
The disappearance of the red heart often raises questions. On forums, users worry when the emoji reverts to a smiley. The explanation is purely mechanical: the other person has sent more snaps to someone else for a sufficient period to change the ranking.
The two pink hearts: the longest level
The two pink hearts (Super BFF) appear after two consecutive months of mutual best friend #1 status. This is the highest level of the heart system. Maintaining this status requires consistent exchanges over a significant duration, without prolonged interruptions or changes in sending habits.
Why a Snapchat heart disappears or changes color
The loss of a heart can generate sometimes disproportionate reactions. Understanding the mechanisms at play helps to put things into perspective.
- The volume of exchanges with a third party exceeds that with the current contact: the heart is replaced by a smiley or disappears completely.
- One of the two users stops sending snaps for several days: the reciprocity is broken, and the algorithm reclassifies the contacts.
- The duration counter (two weeks for red, two months for pink) is reset if the best friend #1 status is lost, even briefly.
A single day of inactivity can be enough to break a level if another contact takes the top spot during that period. The system tolerates no interruption in the hierarchy.
Snapchat hearts and friendship solar system: two distinct mechanisms
Snapchat+ subscribers have access to an additional feature called friendship solar system. This system assigns a planet to each contact based on their position in the best friends ranking (from Mercury for #1 to Neptune for #8).
Hearts and planets share a common base (the volume of exchanged snaps), but they do not measure the same thing. Hearts reflect the exclusive reciprocity between two accounts. The solar system ranks the eight most active contacts without requiring reciprocity.
A contact can appear as a nearby planet (Mercury or Venus) without any heart being displayed if the relationship is not reciprocal. Conversely, a red heart can coexist with a distant planet position for the other person, depending on the configuration of their own ranking.
What Snapchat hearts do not measure
The friends emoji system does not take into account the duration of conversations, the content of snaps, or interactions on stories. Two accounts that mutually view each story published but never exchange direct snaps will not receive any hearts.
- Text messages in chat do not count in the calculation.
- Story views do not affect the best friends ranking.
- Audio or video calls via Snapchat do not influence heart attribution.
Only direct snaps (photo or video) sent individually feed the algorithm. This limitation explains why close friends in daily life sometimes do not display any relational emoji on the app.
Snapchat hearts function like a thermometer of a single variable: the frequency of sending reciprocal snaps. They do not reflect the quality of a relationship or its real importance. The transition from a red heart to a smiley indicates a change in usage habits, not a change in sentiment.