Chinese Zodiac Compatibility on iPhone is a browser-based comparison of two already-known zodiac animals using four traditional San He trines and six Liu Chong oppositions, with no invented compatibility score. On an iPhone, open the page, choose two animals from native controls, and read the resulting classification. The narrow-screen layout stacks cleanly, each control has a 44-pixel minimum height, and no drag gesture is required. The page recognizes a pair only when the animals are distinct members of the same sourced San He trine or form one of the six direct Liu Chong opposition pairs. Every other pairing receives the exact label “Not classified by this limited two-rule model.” That label is not a judgment of compatibility, incompatibility, neutrality, safety, or likely relationship success. This checker does not infer animals from Gregorian years or birth dates, assign a percentage, rank people, or turn a folk classification into a prediction. It is designed for readers who already know both animals and want a transparent check of these two traditional relationships on their phone.

What the iPhone result can tell you
The iPhone page is a relationship browser, not a general compatibility test. Its canonical selector order is Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig. After two selections, the page identifies one of three conditions: the animals share a traditional San He trine, they form a direct Liu Chong opposition, or they fall outside the limited two-rule model. A sign paired with itself is not treated as a two-sign trine pair.
Each animal profile exposes one full three-member trine and one direct opposite, so you can check the displayed relationship against the source data. The result never becomes a percentage, a rank, a personality judgment, or a prediction about whether a friendship, family relationship, or partnership will succeed. For a plain-language overview, the beginner’s guide to the two rules explains why these classifications are kept separate.
Run the compatibility check on your iPhone
The fastest route is to open the Chinese Zodiac Compatibility page. It is a responsive web page rather than a separate iPhone app, so the full comparison fits the phone workflow without a drag gesture.
- Identify both animals. The page asks for two already-known zodiac animals and has no Gregorian-year or birth-date field. For a supported year lookup, use the Chinese Zodiac Calculator, which keeps the Lunar New Year boundary warning visible rather than guessing an animal.
- Choose the first animal. Tap the first native selector and select one of the canonical animal labels. The controls use Rat, Ox, and Goat rather than silently substituting regional alternatives.
- Choose the second animal. Tap the second selector and select the animal you want to compare. The result updates immediately from the same classifier used for the original order.
- Read the classification. Look for a traditional San He trine, a direct Liu Chong opposition, or “Not classified by this limited two-rule model.” A trine requires two distinct animals from the same three-animal group.
- Inspect the supporting groups. Check the complete trine group and direct opposite shown for each selected animal. This exposes the underlying references instead of presenting an unexplained badge.
- Confirm symmetry with Swap. Tap Swap to exchange both controlled values in one action. The display order reverses, but the sourced classification remains the same.
On a narrow screen, the selectors retain a 44-pixel minimum height and remain easy to operate without dragging. The two selections stay only in the current React page state. The widget does not request a name, birth date, gender, location, relationship history, account, upload, network service, cookie, or local storage.
The four traditional San He trines
The San He side of the model consists of four literal three-animal groups. Any two distinct animals from the same row receive the Traditional trine (San He) classification.
| San He group | Animals in the group |
|---|---|
| Group 1 | Rat, Dragon, and Monkey |
| Group 2 | Ox, Snake, and Rooster |
| Group 3 | Tiger, Horse, and Dog |
| Group 4 | Rabbit, Goat, and Pig |
Across these four groups, exactly 12 unordered pairs of distinct animals qualify as traditional trines. The groups are stored as literal reference data rather than calculated through an element, personality, or relationship formula. The six opposition pairs do not overlap with these trine pairs.
The six direct Liu Chong oppositions
Each animal has exactly one direct opposite in this narrow model. These are the six sourced Liu Chong opposition pairs:
| Opposition | Directly opposed animals |
|---|---|
| 1 | Rat and Horse |
| 2 | Ox and Goat |
| 3 | Tiger and Monkey |
| 4 | Rabbit and Rooster |
| 5 | Dragon and Dog |
| 6 | Snake and Pig |
An opposition pair is separate from the trine groups: no animal appears in both sets for the same pair. The classification is also symmetric, so swapping Rat with Horse, for example, changes their positions but not their direct-opposition result.
Why 48 animal pairs remain unclassified
The source fixtures contain 12 unordered trine pairs and six direct opposition pairs; the other 48 unordered animal pairs receive the unclassified label. That wording is intentional. It means only that the pair is neither in the same sourced San He trine nor one of the six Liu Chong oppositions. It does not mean neutral, compatible, incompatible, safe, ideal, or doomed.
Broader traditions may also consider Six Harmonies, harms, punishments, Five Elements, or relationships among the year, month, day, and hour branches. The tool does not merge those systems into one false universal table. This keeps the result reproducible and prevents a broader cultural practice from being presented as an overall compatibility score.
How source labels are handled on the phone
English zodiac names vary among references. The interface uses Rat, Ox, and Goat, while cited sources may describe the same cycle positions as Mouse, Cow, Sheep, or Ram. The declared normalization maps Mouse to Rat, Cow to Ox, and Sheep to Goat; users still select the canonical interface labels. Regional substitutions such as Cat or Boar are not silently treated as equivalent because those variations require a separately declared cultural scope.
Broader cultural background is available from the National Folk Museum of Korea’s overview of harmony among zodiac animals and TravelChinaGuide’s Chinese Zodiac Compatibility overview. Those references belong to a wider set of zodiac traditions, but they do not expand the tool’s implementation: the browser deliberately keeps one four-trine, six-opposition scope.
What this two-rule check does not cover
A full BaZi or Four Pillars analysis may consider the year, month, day, and hour branches, elements, and additional relationships between those pillars. This browser covers only four San He trines and six direct Liu Chong oppositions, so it cannot stand in for a complete Four Pillars reading. Its visible limitation also states that year-animal matching is not a scientific measurement and should not guide consequential relationship decisions.
For iPhone users, the practical value comes from transparency: select two known animals, inspect the exact group or opposition behind the result, and use Swap to confirm that reversing the pair changes nothing. That makes the page useful as a clearly bounded cultural reference without pretending to calculate a percentage, rank people, or predict how a real relationship will develop.
Related reading: Is a Zodiac Element a Scientific Personality Result?.