No appointment, no queue, no trying to explain that you "feel damp". Photograph your tongue and the app reads tongue-body colour, coating colour and thickness, moisture, shape, teeth marks and cracks, weighs them against questions derived from that very tongue image, and tells you what to eat, what to avoid, which points to press and which formula is worth discussing with your practitioner.
One complete report free on sign-up · iOS 15+ / Android 8+ · no card required
Tongue reading is often described in words that mean different things to different people. The app splits it into features that can be looked at, then weighs them against your own answers so every conclusion shows its evidence.
The viewfinder measures brightness, sharpness and resolution while you shoot and warns you on the spot if the frame is too dark, blown out or blurred. After upload, the vision model must also confirm a clear tongue is actually in frame — if it is not, you are asked to retake rather than handed a confident answer.
Tongue-body colour, coating colour, coating thickness, moisture, shape, teeth marks, cracks, red spots, sublingual veins. Anything the photo does not show is written as "not observed" — including the sublingual veins, which a front-of-tongue photo usually cannot show.
Cold-heat, deficiency-excess, qi-blood and body fluids, plus heart, liver, spleen, lung and kidney — each scored 0-100 from a fixed rubric, each with a short stated reason.
The report lists foods to avoid and several therapy dishes; the recipe page generates breakfast, lunch and dinner for your current constitution, each with ingredients, method and purpose.
Massage point suggestions, a classical-formula direction to discuss with your practitioner, and the chief-deputy-assistant-envoy breakdown of the herbs named.
Every report is archived, so you can watch the score move across weeks and months, and line up the tongue photos from each session side by side. Whether a change is working stops being a feeling. Daily check-in records how closely you followed the plan.
Question the report directly — "can I still drink coffee?" — and the answer is grounded in your own findings, with the disclaimer the server sends alongside it. When you want a human, open a consultation ticket and the reply is written in the back office.
In one line: the tongue is connected to the organs through the channel system, is richly supplied with blood and fluid, and its surface changes with what is happening inside — which is why Traditional Chinese Medicine treats it as a readable window onto heat, cold, deficiency and excess.
Different regions map to different organs: the tip reflects heart and lung, the middle reflects spleen and stomach, the root reflects kidney, the sides reflect liver and gallbladder. That is why "red at the tip" and "thick coating in the middle" point at completely different problems in the same photograph.
The tongue body — the muscle itself — reflects organ deficiency or excess and the movement of qi and blood. Pale suggests deficiency-cold, crimson suggests exuberant heat, purple suggests blood stasis.
The coating — the layer on top — reflects stomach qi and the depth of pathogenic influence. White leans cold, yellow leans heat, thick and greasy leans dampness or food stagnation, peeling leans stomach-yin insufficiency.
Only the combination means anything. A red tongue with little coating is yin deficiency with flare; a red tongue with a thick yellow coating is excess heat lodged inside. The conditioning advice for those two is opposite — which is exactly where self-diagnosis articles go wrong.
The hard part of reading a tongue has always been that it is described, not measured. The app pins the description down: the viewfinder measures brightness, sharpness and resolution before you upload, and the vision model is instructed to write only what is genuinely visible in the photo — anything unclear must be returned as "not observed", never guessed at. A second model then reads those nine features together with your own answers, scores each axis against the same anchor table, and has to state the reason for every deduction. If a label and its score contradict each other, or a required block is missing, the server flags it instead of quietly shipping the report.
No background in Chinese medicine needed. Do it in the morning, before eating and before brushing, in daylight — that is when the tongue is closest to its real state.
Sex, age, height, weight. Constitution interpretation differs by life stage, so this step is not optional.
Extend the tongue relaxed, without tensing it, lit from the front. Failures prompt a retake.
6-10 questions derived from the tongue image you just shot, not a fixed scale you answer blind. About a minute.
Constitution, evidence, and the conditioning plan arrive together — then keep asking questions.
One rule, stated plainly: sign-up includes 1 complete report on us. After that, generating a report requires a membership — 3 reports every day, refreshed at midnight Beijing time, and once the 3 are used a member can watch one rewarded video to add 1 more. All three membership tiers carry exactly the same benefits; they differ only in how you are billed, and a subscription can be cancelled at any time.
One full report at sign-up — no card, no ad. Further reports need a membership.
About RMB 0.66 a day. Cancel whenever you like; the period runs to its end.
About RMB 0.55 a day — RMB 39.2 less than paying monthly for a year.
The app has no user reviews yet, so this band shows mechanics instead — every line here can be demonstrated in the app or traced in the server's own logs.
The prompt carries a fixed scoring anchor: start at 100 and deduct by severity — no evidence of imbalance ≥90, mild 70-89, moderate 50-69, marked <50. The overall score must be the arithmetic mean of the four balance axes (within 5 points), and each item must state its own reason in twelve characters or fewer.
Before a report is stored, the server checks every required block: constitution type, tongue reading, cause and problem analysis, food advice, acupoint care, daily routine, meal pairing, the four-axis and five-organ balances, and every scoring reason. Anything missing fails the generation.
Rewarded-video credits are written by the ad network's signed server-to-server callback; no client endpoint can add one. Membership is evaluated per request against the expiry date, and every billing response is sent with Cache-Control: no-store.
No, and it does not try to. It is a daily self-observation and conditioning reference. The photo is read into nine observable features — body colour, coating colour and thickness, moisture, shape, teeth marks, cracks, red spots and sublingual veins — and a TCM-role model weighs them against your answers, scoring each axis from a fixed anchor table with a stated reason.
Full TCM diagnosis requires four examinations together. A phone covers inspection and questioning, but not pulse-taking or complete facial inspection, so a photo that cannot show the underside of the tongue says "not observed" rather than inventing one, and a report that cannot be completed is refused instead of padded out.
Three failure causes come up constantly: staining from coffee, milk tea, orange juice, herbal decoctions; brushing or scraping the coating away beforehand; and side lighting or warm lamps that shift the colour badly.
Best practice is morning light, before eating and before brushing, tongue relaxed and extended, phone 15–20 cm away. The camera screen warns you in real time about low light and missed focus.
Tongue images are personal health data and are handled that way: private object storage, signed URLs with an expiry, no search-engine indexing, and no sharing with third parties for ad targeting. Deleting a report also removes the photo attached to it.
One thing worth stating plainly: to generate a report, tongue features and text descriptions are sent to a language model. The original image file is not.
Your first report is free at sign-up — no card, no ad. After that, generating a new report requires a membership: 3 reports every day, refreshed at midnight Beijing time, and unused quota does not roll over. Once the 3 are used, a member can watch one rewarded video to add 1 more.
Rewarded-video slots and daily check-in credits are served only to members — a non-member cannot request an ad and cannot earn quota that way. Reviewing and deleting past reports, the trend curves, daily check-in, the photo timeline, follow-up questions on reports you already have and consultation tickets stay free for everyone.
Because the server grants them, not the app. After a video finishes, the ad network's server calls our endpoint with a signature; we verify it, confirm the transaction has not been redeemed, and re-check that your membership is still active before touching your balance. That round trip is one to three seconds.
We could credit instantly on the client's word — and then anyone with a proxy could mint free reports, and the price would move to cover it. A report that fails to generate returns what it consumed.
Native clients for iOS 15.0+ and Android 8.0+. Sign in with the same phone number and your reports, trends, check-ins and remaining credits are identical on both. Membership follows the account, not the device.
Depends which one you bought. The monthly and yearly memberships auto-renew — cancel in iPhone Settings → Apple Account → Subscriptions at least 24 hours before the period ends and your current period stays active until it runs out; there is no cancellation fee. The one-time monthly card (¥39.9 / 30 days) simply expires, so there is no forgotten subscription. Since 19 October 2026 the per-scan and 10-scan packs are no longer sold; credits bought before then remain spendable. iOS refunds are decided by Apple (reportaproblem.apple.com); orders paid through Alipay are refunded to the original method — the full terms are in our Membership Service Agreement, article 6.
Every new account includes a complete report. No card, and no video required first.