01
Score and four balances
A 0–100 estimate, recovery, energy, hydration and calm. Confidence shows whether your entries provide enough evidence for the result.
Available on the web and in Telegram
One state.One reason.One action.
Understand how your day is going. YOSS turns your sleep, water, activity and wellbeing entries into a clear picture, with a useful next step.
Start without an accountApple & Android — Coming soon
Example
01 / TodayManual entries
YOSS SCORE
78OUT OF 100
Screen example · illustrative data
A steady rhythm.
Sleep is an important part of today’s picture.
YOUR NEXT STEPAdd context
Open YOSSWaterCoffeeSleepCheck-inMore
TodayHistoryPatternsLife BookRoutineProfile
No account needed to start locallyRU / EN / ES / TR / PT / JA / KK / UZLight and dark themes
A clearer view of your day
From quick entries
to your own picture.
Record the facts of your day, see what supports the estimate and choose a next step. Extended analysis is available with Pro.
02
A journal and 39 drinks
Sleep, drinks, meals, activity, rest, steps, tension and body states. Correct or delete entries when you need to.
03
One next step
An action for your current context, followed by “better / unchanged / worse” feedback. Free includes one recorded completed suggestion a day; ordinary entries are not limited by this counter.
04
History and conditional forecasts
Historical trends are available with Free. Pro adds future points and conditional forecasts for 3 and 6 hours when there is enough evidence.
05
Personal patterns · Pro
Explore links between habits and your state using your recorded history. An observed association is not proof of a cause.
06
Life Book · Pro
Keep meaningful moments and notes, revisit them, choose what to share and review your month.
07
Routines you confirm
Up to 10 rules for recurring events. Pro can suggest entries; they do not affect Score until you confirm them.
08
Weather for your chosen place
Search for a town or city, update weather using your location, or enter temperature and humidity manually.
09
Notifications at your pace
Web Push or the Telegram bot, quiet hours and delivery pauses. Delivery after closing the app depends on your device and permissions.
Getting started
A few entries.
A little more clarity.
Open YOSS
Start in your browser without an account, or launch the Mini App from the Telegram bot.
Add what you know
Sleep, water, steps or how you feel. YOSS uses the entries you actually record.
Look at your day
Explore your Score, its reasons and a next step. To move your history between devices, sign in with Telegram and sync from your account.
YOSS in Telegram
Record it now.
See it in the app.
The @yossapp bot opens the Mini App, helps you sign in on the web and accepts quick commands. Bot entries join your shared history after you sync.
Open the botSign in with Telegram
Choose Telegram in your account, compare the code and confirm in the bot. Then return to your original browser tab.
YOSS@yossapp
BOT/water 250250 ml of water/sleep 7.57.5 hours of overnight sleep/stress 3Tension: 3 out of 10/steps 50005,000 steps/help — commands · /web — website · /pro — Pro access · /paysupport — payment help
Open YOSSYour entries
Start locally.
Continue with your profile.
Start locally
Without signing in, entries stay in this browser. After the first load and successful caching, you can keep a local journal offline.
Sync when you choose
Sign in with Telegram and select Sync to combine history across devices. Cloud backups are available for your account.
Export and file import
Save a JSON backup and restore compatible YOSS data. Apple Health uses a manual export.xml import, not a continuous HealthKit connection.
Access and subscription
Start for free.
Go further when you need to.
The core journal stays available without a subscription. Pro offers more ways to understand your own history.
Annual Pro: 1743 Stars instead of 2490 Stars — 30% off the previous annual price.
Free
0
for the core features
Start locally without an account.
- Manual journal and current estimate
- History and historical trends
- JSON export; cloud features with an account
Pro
249 Stars
for 30 days
365 days costs 1743 Stars. Choose monthly renewal or a one-time period.
- Forecasts and personal patterns
- Life Book and action comparisons
- One-time periods of 1–9 months or a year
Pro trial
14 days
once
After Telegram sign-in and three different active days with new entries.
- Started by a separate action
- Includes Pro features
- No automatic charge
| Feature | Free | Pro |
|---|---|---|
| Manual entries | Included | Included |
| Current Score and Core | Included | Included |
| Historical trends | Included | Included, plus forecast points |
| Suggested action | One completed suggestion a day | Repeated actions and alternative comparisons |
| Forecasts, patterns and Life Book | Extended sections require Pro | When sufficient history and evidence are available |
| Today cards and quick categories | Standard selection | Customisable |
Rouble payments are not available yet. Stars purchases are enabled in Telegram.
Where to use YOSS
Already within reach.
Open the web app or Telegram today. Dedicated Apple and Android apps are on the way.
Web
Open on a computer or phone. Add it to your home screen in a supported browser.
Open the web appTelegram
The Mini App, quick commands and confirmation for browser sign-in.
Open @yossappApple
An app for Apple devices. The release date will be announced separately.
Coming soonAndroid
An app for Android. The release date will be announced separately.
Coming soonBefore your first step
A few useful answers.
Do I need an account?
Not to start locally. Telegram sign-in is required for cloud sync, backups and purchases.
Does history sync automatically?
The main workflow uses the Sync button in your account. Later changes on a device need another sync. Bot entries join the device history when you sync.
How does Apple Health work?
Import export.xml manually. YOSS processes it on your device and extracts recent compatible evidence. This is not a continuous connection to HealthKit or a watch.
Does Score measure health?
No. It is a model-based estimate from your entries. Confidence describes the available evidence, forecasts are conditional and patterns do not prove causation. YOSS does not replace medical care.
Are there App Store and Google Play apps?
The web app, PWA and Telegram Mini App are available now. Dedicated Apple and Android apps are marked Coming soon.
What do background notifications need?
Enable your chosen channel and permissions. Use Web Push or the bot; iPhone Web Push needs a supported PWA added to the Home Screen. A successful test send does not guarantee receipt on a device.
YOSS
Your day.
A little clearer.
Start with one entry. Continue at your own pace.