Clinically supervised care, supported by your daily picture
Kella follows the shape of your day: you check in, you log what you did, your wearable fills in the night, and over time the patterns show. Each step takes less than the last.
Check in daily
Two sliders for swelling and how you feel, a wider list of symptoms grouped so you can find yours in seconds, and what you did today under four headings. Under a minute, with no wrong answers.
Log what you did
Tap what happened today under Nutrition, Activities, Treatments and Lifestyle. Star your regulars and they stay at the top.
Follow your routine
Start with hydration, walking and deep breathing. Your practitioner personalises it after your appointment.
See the change
See your Flow Score each day and your trends over a week, a month or a year, with treatments marked.
Each scale, and what the ends mean
Each slider runs from 0 to 10. Swelling is the one where lower is better, and your practitioner watches for it rising against your own 7-day average, not against anyone else's. How rested you feel only appears when no watch is connected, because your watch already knows.
Reading your trends
Sleep is the shaded line, swelling the gold one, and every dot is a treatment you logged. Switch the range to see the week, the month or the quarter.
Let your wearable fill in the night
Connect a Fitbit or Pixel Watch and your sleep, heart rate, HRV, steps and workouts fill in automatically.
Open Kella, go to Profile, then Manage devices. You will be asked to sign in with the Google account your watch or Fitbit uses and to allow Kella to read your health data. You can disconnect at any time from the same screen.
Kella brings in your device data through the day, roughly every hour, with a full catch-up each morning at 6:30am UK time so last night's sleep is waiting when you wake. Workouts your watch records, a run, a class, a game of padel, are added to that day's activities with their start time and length. If something is missing, make sure your watch has synced to its own app first, then tap Sync now in your profile.
Kella works fine on the check-in alone. Your check-in asks how long you slept, and those hours count towards your Flow Score. You simply will not see heart-rate lines on your trends until a device is linked.
Your cycle and your hormones, read alongside everything else
Optional, and private to your care. Tell Kella whether you have regular or irregular periods, or are perimenopausal or menopausal, and your check-in and trends adapt to you. Nothing changes until you choose.
A single tap on the daily check-in marks a period day, with light, medium or heavy flow if you want to add it. Kella works out your cycle day and phase and shades it onto your trends, so sleep, HRV, swelling and mood can be read against where you are in your cycle. It is an estimate for context, not a fertility or contraception tool.
Choose either profile and a few extra one-tap questions join your check-in, hot flushes and night sweats, sleep disruption, brain fog, joint aches, anxiety or low mood, each tracked over 7, 30 and 90 days next to your wearable data, so you and your practitioner can see what is shifting.
The Treatments and Activities lists cover acupuncture, breathwork, meditation, yoga or pilates, strength training, walking, cold water, supplements, pelvic floor exercises, massage, a sleep hygiene routine, journaling and time outdoors, and your clinic can add more. Star the ones you use and they stay at the top of your list.
Only you and the clinicians caring for you can see this information. It is stored with the same protection as the rest of your health data, included if you export your data, and removed if you delete your account. You can change or remove your profile choice at any time.
How recovered you are today, from your own readings
Each morning Kella turns last night's HRV, resting heart rate and sleep into a Recovery score out of 100, measured against your own usual.
One line tells you what moved the score, "HRV is up on your usual and you slept 7h 40m, a good day for a fuller session", or "Resting heart rate is above your usual, go gently today". Tell Kella whether that matches how you feel, and it learns.
Lymph Coach, your Modes and your Flow Score all read the Recovery score, so a low-recovery day suggests self-drainage, breathing and water rather than a hard session.
If your heart rate sits well above your usual for twenty minutes while you are not moving, Kella may send a quiet nudge, "This afternoon looked tense, a two-minute breathing pause can settle things", at most twice a day, never in your quiet hours. You can tell it whether it was right, or switch these off in Reminders.
The score appears after seven nights with your device, and settles as Kella learns your usual pattern over the first month.
Real rewards for keeping your record complete
Wearing your watch and keeping your log up to date earns points towards rewards at the clinic. Points never expire and there are no streaks to lose.
A red light, infrared sauna or HBOT upgrade on your next treatment, product credit, money off, or a donation in your name to a lymphoedema or cancer charity.
Your watch on overnight and through the day, and a check-in with at least one thing logged, earn the most. A full week of both earns a bonus. Your Rewards card on Today tells you what to do next.
Rewards are optional and never use your scores, symptoms or results. You can turn them off in your Profile at any time.
Photos that line up, so you can see your own change
When you take a progress photo, Kella shows a faint outline of your last one so you stand the same way at the same distance.
The new photo sits beside the previous one with the dates and your tape measurements, so you and your practitioner see the change rather than guess at it.
After breast surgery or lymph node removal, shoulder movement matters. The shoulder check uses your phone camera to measure how far you can raise and reach your arm in three short movements, tracked against your own previous best. It is a guide to your own change, not a clinical measurement.
Both features use the camera on your phone only. Photos are stored encrypted with the rest of your record, and no video is ever saved.
Life happens, your record can catch up
You can add or change what you logged for any of the last five days, so a late night or a busy weekend does not leave a gap.
On Today, under Logged today, tap Yesterday or any of the last five days, then Add.
If you go quiet for a few days Kella sends one reminder, and after a week it lets your clinic know so someone can check in with you personally.
One number for how well you supported your lymphatic system
Kella turns what you logged into a daily score out of 100 across hydration, movement, sleep, nourishment, gut, recovery and self-care.
Each day Kella picks the pillar with the most room and suggests one small step, a ten-minute walk after a meal, an earlier wind-down, with a link to the matching self-care guide.
A short summary of how the week is going, what has been strongest and where there is room, with a personal HRV and resting-heart-rate note once Kella has learned your own baseline.
A flight, a hot spell, a poorly week, surgery recovery, a stressful week or a period week. Turn a mode on and Kella gives you a short daily list and nudges to match, then steps back when it is over.
Optional prompts for your check-in, water, movement, your wearable sync and a Sunday look back, with quiet hours you set. Nothing in a reminder ever contains your scores or results.
Track what matters for your condition
Switch on a profile and a few one-tap symptoms join your check-in, with their own trends and a plain card on when to contact your team.
Whether the lymphoedema followed cancer treatment, or when lipoedema was first noticed; limb measurements, a daily limb check, optional progress photos, and the clinic treatments you have had with a short follow-up after each.
Before, during or after cancer treatment: fatigue, nausea, appetite and taste, neuropathy, pain, skin reactions, brain fog and mood, and early signs in an at-risk limb, read against your treatment sessions.
Trying naturally or in assisted treatment: cycle-phase shading, cramping, bloating, spotting, injections and their side effects, and an IVF phase tracker so symptoms sit against the stage you are in. Kella is not a fertility or contraception tool.
Hot flushes and night sweats by count, sleep, mood, brain fog, aches, palpitations and more, with a recognised weekly symptom scale and HRT changes marked on your trends.
Swelling, bruising and pain at the site, numbness, wound concerns, garment worn and mobility, with your post-op drainage and scar work on the timeline.
Swelling, pelvic and back pain, nausea and sleep through pregnancy and after; or energy, post-exertional malaise, brain fog and pacing, with your steps read against the next day's energy.
How "what seems to help" is worked out
Impact is deliberately simple, so it is honest.
Kella takes your usual readings, average sleep, resting heart rate, HRV and swelling over the recent weeks, as the comparison point. Nobody else's numbers are involved.
For each logged treatment or activity, Kella looks at the following day's check-in and the following night's wearable data, and compares them with your baseline.
One good night proves nothing. Impact only appears for a treatment once you have logged it three times, and it keeps refining as you go.
Impact shows direction and size, in plain terms. What it means for your care is a conversation with your practitioner, who sees the same view.
Your results, released by your clinic
Results from your clinic, or ones you upload, are added to your record and released with a plain-English report once your clinical team has signed them off.
Results and reports appear in the Labs tab only after your clinical team has signed them off. If nothing is showing yet, they are still being reviewed.
A single reading rarely tells the whole story. Bring questions to your next appointment rather than drawing conclusions from one number.
Kella is not an emergency service and results are not monitored around the clock. If you feel unwell, contact your GP or call 111; in an emergency call 999.
Ready to check in?
Sign in, or find your invitation from your practitioner.