# upeak

> upeak (upeak.io) is a suite of six small, focused apps for the parts of a day that actually move: training and recovery (PeakU, PeakVital, PeakBeat), wardrobe (PeakClothes), email attention (PeakLook) and coding agents (PeakWatch). All six are coming soon; access is through a private beta waitlist at https://upeak.io/#waitlist.

Brand line: "Max yourself." The name hides two words, u and peak: the user is the subject, and peak is a verb. Android-first (with Wear OS / Galaxy Watch surfaces where relevant); PeakLook also runs as an Outlook add-in. Contact: hello@upeak.io.

## Apps

- [PeakU — A coach that reads everything you already track.](https://upeak.io/peaku/): PeakU is an AI training coach for Android and Wear OS: one daily Peak Score from Samsung Health, Garmin, Whoop, Oura, Hevy and Strava, plus adaptive plans. Coming soon. Platforms: Android phone, Wear OS · standalone, Browser. Status: coming soon, private beta.
- [PeakVital — Three tests. One number. Your real age.](https://upeak.io/peakvital/): PeakVital scores three simple fitness tests — VO₂max, dead hang and sit-to-stand — against your age group into one number: your Vital age. Coming soon, private beta. Platforms: Android phone, Results stay on the device. Status: coming soon, private beta.
- [PeakBeat — Your effort writes the setlist.](https://upeak.io/peakbeat/): PeakBeat is adaptive workout music for Android and Galaxy Watch: heart-rate zones pick the track, cadence locks the tempo, all on-device. Coming soon, private beta. Platforms: Android phone, Galaxy Watch · Wear OS, standalone, Works offline. Status: coming soon, private beta.
- [PeakClothes — One outfit a morning. No scrolling.](https://upeak.io/peakclothes/): PeakClothes is a personal AI stylist for Android: photograph your wardrobe, get one outfit a morning from weather, occasion and colour harmony. Offline-first. Coming soon. Platforms: Android phone, Offline-first, English · Hebrew (RTL). Status: coming soon, private beta.
- [PeakLook — Mail that gets answered. Follow-ups that never die.](https://upeak.io/peaklook/): PeakLook is an AI email assistant for Microsoft 365: it drafts replies, runs follow-up sequences on autopilot and tracks replies. Outlook add-in and Android app. Coming soon. Platforms: Outlook add-in, Android app, Microsoft 365 · Graph. Status: coming soon, private beta.
- [PeakWatch — Your coding agent, on your wrist.](https://upeak.io/peakwatch/): PeakWatch puts Claude Code on a Galaxy Watch: approve tool requests, dictate prompts, read replies and session summaries from your wrist over WiFi or LTE. Coming soon, private beta. Platforms: Wear OS · Galaxy Watch Ultra, Relay on your machine, or free-hosted, WiFi / LTE · phone optional. Status: coming soon, private beta.

## Key facts

- Platforms: Android first; Wear OS (PeakU, PeakBeat, PeakWatch); Outlook add-in and Android (PeakLook). iOS after the betas.
- Data: health data is encrypted at rest with per-install identity and hard deletion.
- Principles: choose yourself; one number at a time; peak is a verb.

## Pages

- Home: https://upeak.io/
- Sitemap: https://upeak.io/sitemap.xml
- PeakU: https://upeak.io/peaku/
- PeakVital: https://upeak.io/peakvital/
- PeakBeat: https://upeak.io/peakbeat/
- PeakClothes: https://upeak.io/peakclothes/
- PeakLook: https://upeak.io/peaklook/
- PeakWatch: https://upeak.io/peakwatch/

## Blog

- Index: https://upeak.io/blog/ (RSS: https://upeak.io/blog/feed.xml). Six articles per app; 'Research' pieces cite published studies, 'Guide' pieces answer common search questions.
- [Galaxy Watch Ultra for work: LTE, standalone apps and the settings that make it useful](https://upeak.io/blog/galaxy-watch-ultra-for-work/) — PeakWatch · Guide · 2026-09-14: How to set up a Galaxy Watch Ultra as a work device: LTE without the phone, notification triage, the rotating bezel, battery habits, and standalone apps…
- [AI email assistant: what it can and cannot do for your inbox in 2026](https://upeak.io/blog/ai-email-assistant-what-it-can-and-cannot-do/) — PeakLook · Guide · 2026-09-13: Drafting, triage and scheduled follow-ups are solved; judgement, relationships and tone under pressure are not. A clear map of where an AI email assistant…
- [How to organise your closet, and finally see what you own](https://upeak.io/blog/how-to-organise-your-closet-and-see-what-you-own/) — PeakClothes · Guide · 2026-09-12: A one-afternoon method: empty, sort by category, photograph, prune with a wear rule, and keep it organised with a log instead of willpower.
- [Zone 2 training: the beginner's guide to the easy sessions that build everything](https://upeak.io/blog/zone-2-training-beginners-guide/) — PeakBeat · Guide · 2026-09-10: What zone 2 is, why it builds mitochondria and fat oxidation, how slow it really feels, and how much of it you need each week.
- [What is my fitness age? How it is calculated, and how to lower it](https://upeak.io/blog/what-is-my-fitness-age-and-how-to-lower-it/) — PeakVital · Guide · 2026-09-09: Fitness age compares your aerobic capacity, strength and balance with people your calendar age. What the Vital age is built from and the three levers that…
- [How to build a half marathon training plan around your real life](https://upeak.io/blog/half-marathon-training-plan-around-real-life/) — PeakU · Guide · 2026-09-08: A 12-week half marathon structure that survives travel, short nights and heavy lifting days, with the safety rules that keep the ramp from injuring you.
- [Best Wear OS apps for developers, and what is still missing](https://upeak.io/blog/best-wear-os-apps-for-developers/) — PeakWatch · Guide · 2026-09-07: What a developer can actually do from a Wear OS watch in 2026: notifications, 2FA, SSH, CI status, and controlling coding agents. The useful apps and the gap…
- [Email sequence examples: 3-step and 5-step outreach that actually gets answered](https://upeak.io/blog/email-sequence-examples-that-work/) — PeakLook · Guide · 2026-09-06: Two complete sequences with timing, purpose and copy for each step: a three-step for warm contacts and a five-step for cold outreach, plus the rules for…
- [What to wear today? Building outfits from the weather forecast, not the window](https://upeak.io/blog/what-to-wear-today-outfits-from-the-weather-forecast/) — PeakClothes · Guide · 2026-09-04: The temperature bands that decide layers, the forecast numbers that matter (feels-like, wind, rain chance) and a repeatable way to dress for the day rather…
- [How to find your heart rate zones without a lab test](https://upeak.io/blog/how-to-find-your-heart-rate-zones-without-a-lab/) — PeakBeat · Guide · 2026-09-03: Two numbers from your watch, one formula, and five zones that actually fit your heart. The Karvonen method explained with a worked example.
- [How long should you be able to dead hang? Standards by age, and how to improve](https://upeak.io/blog/how-long-should-you-be-able-to-dead-hang/) — PeakVital · Guide · 2026-09-02: Dead hang standards for adults, what the test says about grip and shoulder health, and a four-week plan to double your time.
- [Training readiness score explained, and how to use it tomorrow morning](https://upeak.io/blog/training-readiness-score-explained/) — PeakU · Guide · 2026-09-01: What goes into a readiness or recovery score, why the number without a recommendation is useless, and a simple rule for turning it into today's session.
- [Claude Code tips: how to run long sessions without babysitting them](https://upeak.io/blog/claude-code-tips-long-sessions-without-babysitting/) — PeakWatch · Guide · 2026-08-31: Practical habits for longer Claude Code sessions: scope the task, set permissions deliberately, use a context file, checkpoint with commits, and supervise…
- [How to write a follow-up email that gets a reply (with templates)](https://upeak.io/blog/how-to-write-a-follow-up-email-that-gets-a-reply/) — PeakLook · Guide · 2026-08-29: The structure of a follow-up that gets answered: short, threaded, one ask, a new reason. Four templates for day 3, day 7, day 14 and the polite close.
- [Capsule wardrobe for men over 40: the 30-piece list that covers every week](https://upeak.io/blog/capsule-wardrobe-for-men-over-40/) — PeakClothes · Guide · 2026-08-28: A season's worth of outfits from thirty pieces: the list, the colour rule that makes everything match, and how to build it without a shopping spree.
- [Best BPM for running: how to match your music to your cadence](https://upeak.io/blog/best-bpm-for-running-match-music-to-your-cadence/) — PeakBeat · Guide · 2026-08-27: Find your running cadence, pick the BPM that fits it at half or full time, and build a playlist that holds your stride together when you tire.
- [What is a good VO₂ max for my age? Charts for men and women](https://upeak.io/blog/what-is-a-good-vo2-max-for-my-age/) — PeakVital · Guide · 2026-08-26: VO₂ max reference ranges by age and sex, what 'good' means for longevity rather than racing, and how to get a usable estimate without a lab.
- [What is a good HRV for my age? A realistic guide to the number everyone searches](https://upeak.io/blog/what-is-a-good-hrv-for-my-age/) — PeakU · Guide · 2026-08-25: Typical HRV ranges by age, why the absolute number matters less than your trend, and how to read your morning reading without a physiology degree.
- [Async supervision: how to run coding agents while you are away from the desk](https://upeak.io/blog/async-supervision-running-agents-while-you-are-away-from-the-desk/) — PeakWatch · Research · 2026-08-23: Task switching can cost up to 40% of productive time. Agents make parallel work possible only if supervising them is cheap. A model for running sessions you…
- [Batching and automation: the cognitive cost of an always-open inbox](https://upeak.io/blog/the-cognitive-cost-of-an-always-open-inbox/) — PeakLook · Research · 2026-08-22: Twenty-three minutes to refocus after an interruption; lower stress with three checks a day. Why the inbox should be a task with a schedule, not a feed.
- [Enclothed cognition: what you wear changes how you think](https://upeak.io/blog/enclothed-cognition-what-you-wear-changes-how-you-think/) — PeakClothes · Research · 2026-08-21: Wearing a lab coat improved attention; wearing formal clothes shifted thinking toward the abstract. The research on clothing and cognition, and what it means…
- [Heart-rate zones: why most people train in the wrong one](https://upeak.io/blog/heart-rate-zones-why-most-people-train-in-the-wrong-one/) — PeakBeat · Research · 2026-08-20: Elite endurance athletes do about 80% of their training at low intensity. Most recreational athletes do the opposite. What the intensity-distribution…
- [The sit-to-stand test: a thirty-second window into your next decade](https://upeak.io/blog/sit-to-stand-test-thirty-second-window-into-your-next-decade/) — PeakVital · Research · 2026-08-19: Brazilian researchers found that people who needed hands or knees to get up from the floor had double the death rate over six years. A chair version anyone…
- [One coach, all your data: why five fitness apps stall progress](https://upeak.io/blog/one-coach-all-your-data-why-fragmented-fitness-apps-stall-progress/) — PeakU · Research · 2026-08-17: Your watch, your lifting log and your run tracker each see a third of you. The acute-to-chronic load research shows why the missing two thirds is where…
- [Human-in-the-loop agents: why the approval gate is the safety feature, not the friction](https://upeak.io/blog/human-in-the-loop-agents-why-approval-gates-are-the-safety-feature/) — PeakWatch · Research · 2026-08-16: Coding agents that ask before they write, run or delete are safer by design. What permission gates protect against, why auto-approve is a trap, and how to…
- [The follow-up is where deals die: the numbers on persistence](https://upeak.io/blog/the-follow-up-is-where-deals-die/) — PeakLook · Research · 2026-08-15: Across 12 million outreach emails, only 8.5% got a reply, and one follow-up raised replies by 65.8%. Why the second email matters more than the first, and…
- [Cost per wear: the one number that fixes how you buy clothes](https://upeak.io/blog/cost-per-wear-the-one-number-that-fixes-how-you-buy-clothes/) — PeakClothes · Research · 2026-08-14: We wear clothes 36% fewer times than fifteen years ago and hold 31 unworn items each. Cost per wear turns a closet into a ledger, and changes what you buy…
- [Cadence-matched music and running economy: the synchrony effect](https://upeak.io/blog/cadence-matched-music-and-running-economy/) — PeakBeat · Research · 2026-08-13: Cyclists used 7% less oxygen with music synchronised to their cadence; elite triathletes ran 18% longer to exhaustion. Why tempo-locking the beat to your…
- [Grip strength predicts mortality better than blood pressure](https://upeak.io/blog/grip-strength-predicts-mortality-better-than-blood-pressure/) — PeakVital · Research · 2026-08-11: In the 139,691-person PURE study, every 5 kg of lost grip strength meant 16% higher all-cause mortality. Why a dead hang belongs in your baseline.
- [Sleep is the training variable you are not periodising](https://upeak.io/blog/sleep-is-the-training-variable-you-are-not-periodising/) — PeakU · Research · 2026-08-10: Under eight hours of sleep, injury risk in young athletes rose 1.7×; extending sleep improved shooting accuracy 9% and sprint times 5%. Why a coach must read…
- [Interruptions cost developers 23 minutes. A watch tap costs seconds.](https://upeak.io/blog/interruptions-cost-developers-23-minutes-a-watch-tap-costs-seconds/) — PeakWatch · Research · 2026-08-09: Only 10% of interrupted programming sessions resume within a minute, and fragmented work measurably lowers output. Why approving an agent from the wrist…
- [Email eats 28% of the work week. Here is how to get a day back.](https://upeak.io/blog/email-eats-28-percent-of-the-work-week/) — PeakLook · Research · 2026-08-08: McKinsey measured knowledge workers spending 28% of their week on email; checking it less often measurably lowered stress. The research, and the two changes…
- [Why a uniform works: what the science says about the outfit decision](https://upeak.io/blog/why-a-uniform-works-decision-fatigue-and-your-closet/) — PeakClothes · Research · 2026-08-07: Choice overload, ego depletion and the case for deciding once. What the research does and does not support, and how to get the benefit without wearing the…
- [Music makes hard exercise feel easier. The meta-analysis has the numbers.](https://upeak.io/blog/music-makes-hard-exercise-feel-easier-the-meta-analysis/) — PeakBeat · Research · 2026-08-05: 139 studies and 3,599 participants: music improved performance (g = 0.31), lowered perceived exertion (g = 0.22) and cut oxygen cost (g = 0.15). What that…
- [VO₂max is the strongest predictor of how long you live. Here is the evidence.](https://upeak.io/blog/vo2max-strongest-predictor-of-longevity-evidence/) — PeakVital · Research · 2026-08-04: In 122,007 patients, the fittest group had 80% lower mortality than the least fit, and low fitness was a risk comparable to smoking. Why one number deserves…
- [HRV-guided training beats a fixed plan (by a smaller margin than the hype, in a more useful way)](https://upeak.io/blog/hrv-guided-training-what-the-research-says/) — PeakU · Research · 2026-08-03: What eight controlled trials say about training by heart-rate variability: fewer non-responders, better vagal tone, and less hard work for the same fitness.

## Other pages

- Compliance (privacy, security, accessibility): https://upeak.io/compliance/
- Privacy policy: https://upeak.io/privacy/
- Terms of use: https://upeak.io/terms/