Sleevi vs SleepRing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sleevi
This app tracks your body's recovery during sleep using data from your Apple Watch. It analyzes heart rate, respiratory rate, and body temperature to provide a recovery score and personalized insights for optimizing your health and wellness.
- Sleep recovery tracking
- Heart rate monitoring
- Respiratory rate analysis
- Body temperature tracking (compatible models)
- Personalized recovery score
- Health insights and recommendations
- Apple Health sync
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Sleevi turns the signals your Apple Watch already records overnight into three plain answers every morning: how well you recovered, how you slept, and what you can ask of the day ahead. THREE RINGS, ONE GLANCE Recovery (0–100), Sleep (0–100) and Readiness (0–10) sit side by side at the top of Today. Each is one tap away from its full breakdown. BUILT ON THE NEWEST SIGNALS HRV (RMSSD on watchOS 27, SDNN before), resting and overnight heart rate, respiratory rate, sleeping wrist temperature, blood oxygen, breathing disturbances and Apple's sleep apnea notifications, sleep stages, workouts and VO₂ max — read straight from Apple Health. SIGNAL, NOT NOISE Every score is measured against your own baseline, never against population averages. And the score only moves for deviations that matter — beyond your personal noise band and a physiological minimum. A cooler wrist never counts against you. APPLE INTELLIGENCE, ON DEVICE Your morning insight is written by Apple's on-device Foundation Model from last night's facts: two or three calm sentences and one concrete suggestion for the day. Nothing leaves your iPhone. Without the model, a rule-based insight steps in — and says so. GOOD MORNING The morning summary waits until your Watch has synced every signal, so the number you see at 7:03 is the number that stays. Illness early warning, low-recovery and short-sleep alerts, and a Sunday report follow the same rule: one per night, never nagging. BEDTIME, PLANNED Sleevi works out tonight's bedtime from how much sleep you need and when you have to be up — your usual wake time or, if you like, tomorrow's first calendar event. Three gentle steps: wind down, one more step, bed. And in the evening it listens to your heart rate and HRV; once they settle near your night levels, it tells you your body is ready. ILLNESS, A DAY EARLY When several overnight signals drift the wrong way at once — a warmer wrist, a higher resting pulse, faster breathing, suppressed HRV — Sleevi tells you before you feel it. A pattern, not a diagnosis: it never names a condition and always points you to a clinician if you feel unwell. SLEEP, TRENDS, HABITS Stages, quality breakdown, sleep debt and naps. Every metric over 30 days to a year against your personal range. Tag last night — alcohol, late meal, sick — and run experiments with real before/after statistics. A REPORT FOR YOUR DOCTOR One tap creates a printable PDF of the last 30 days: averages against your personal range, trend charts, and a night-by-night table with every flag. EVERYWHERE Home and Lock Screen widgets, a native Apple Watch app with complications and Smart Stack relevance, and an iPad layout built as a dashboard. Six languages. PRIVATE BY DESIGN No account, no server, no analytics. Health and Calendar data stay on your device. Sleevi is for information only and not a medical device. It cannot diagnose illness, sleep apnea or any condition. If you feel unwell, talk to a doctor. Requires an Apple Watch with sleep tracking. Apple Intelligence features require a supported iPhone with Apple Intelligence enabled. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SleepRing
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Track your sleep with Apple Watch — no buttons, just sleep. SleepRing turns the data your Apple Watch records in the Health app into a clear, beautiful analysis of your night. Sleep wearing your Watch, wake up and see everything in easy-to-read rings. SLEEP RINGS • Night duration vs. your goal • Quality score (0–100) built from duration, efficiency, restorative sleep and awakenings • Deep sleep and efficiency at a glance NIGHT STAGES • Full timeline: deep, core, REM and awake • Duration and share of each stage • Bed and wake times, time awake and number of awakenings SLEEP VITALS • Average and minimum heart rate (BPM) • SpO2 (blood oxygen) • Heart rate variability (HRV) • Respiratory rate SLEEP BANK • Sleep credit or debt over the last 7 nights • Know how much sleep you "owe" and catch up FULL HISTORY • Chart of your last 30 nights • Every night listed with score and duration • Averages and records ON APPLE WATCH • Last night's summary on your wrist: ring, stages and efficiency AND MORE • Bedtime reminder • Customizable sleep goal (5h to 12h) • Dark mode through and through REAL PRIVACY Everything is processed on your device. SleepRing has no account, no ads and collects no data at all. Your health information stays in the Health app, under your control. REQUIREMENTS To record sleep automatically, wear an Apple Watch with sleep tracking enabled. SleepRing reads data from the Health app (read-only). SleepRing is for informational and wellness purposes; it is not a medical device.
Screenshots
Verdict
The clearest difference is device support: Sleevi at 4 against SleepRing's 2. On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Sleevi | SleepRing |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | — |
| Positive reviews | 57.9% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Daily | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Apple Watch, Vision Pro — better | iPhone, Apple Watch |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 73 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Kevin Reutter | Devskin Desenvolvimento de Softwares ltda |
In-app purchases
Sleevi
No in-app purchases
SleepRing
No in-app purchases









