Comparison

Værftet vs Sthenos

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Værftet

Features
Read full description

Alt, du behøver til din træning – samlet i én app. Vores træningsapp er udviklet til at støtte og forbedre din træningsrejse ved at samle alle de nødvendige funktioner ét sted. Du kan nemt booke og administrere dine hold, tilmelde dig kommende events og følge dine personlige træningsprogrammer, så du holder kursen mod dine mål. Appen giver dig også adgang til en butik, hvor du kan købe udstyr, kosttilskud og andre nødvendigheder. Du kan registrere dine træningsresultater over tid og følge din udvikling. Derudover kan du lære holdet bag centret at kende i afsnittet "Mød teamet". Alle funktioner er designet med fokus på en professionel og brugervenlig oplevelse – skræddersyet til vores medlemmers behov.

About

Sthenos

Features
Read full description

Do you know how much energy you actually have left right now? Sthenos turns your Apple Watch into a live energy score — a single number from 0 to 100 that reflects how recharged or depleted your body is, and whether you're charging or draining at this moment. No guesswork. No manual logging. Just honest, science-backed insight from the sensors you already wear. HOW IT WORKS Sthenos isn't a daily snapshot or a one-off rating. It's a running energy level, updated through the day: • You recharge during genuine rest and sleep — when your heart rate settles and your HRV rises relative to your own baseline. • You drain from activity, elevated heart rate, and physiological stress. • Recent training still counts — a hard workout keeps weighing on you for days, so you can tell when you're truly recovered. Everything is judged against YOUR personal baseline, not population averages. Sthenos learns your normal (about two weeks — faster if you've already been wearing your watch) and calibrates the score to your body. WHAT YOU GET • The heart gauge — your score fills a heart that empties as you deplete and refills as you recover. The number sits inside it and inverts where the waterline crosses, and it beats at your own resting heart rate. • Energy flow — a live read on whether you're charging or draining this hour, and why. • Sleep, Recovery, Heart and Freshness — the four things moving your score, each one tappable for a plain-English explanation of what it means today. • Trends — your history drawn as a tide, at a day, a month, three months or six, from the same model as the live score. • Training load — Fitness, Fatigue and Form from the training impulse of every workout, with the raw daily load drawn underneath, plus the acute:chronic ratio and its sweet spot. • Vitals — every reading your watch takes, each on a rail showing your own normal range and where today sits: heart rate, resting HR, HRV, blood oxygen, respiratory rate, VO₂ max, steps, active energy, sleep, wrist temperature, weight. • On-device AI insights — a short, plain-language read on your day, generated on your iPhone with Apple Intelligence. • Apple Watch app and complications — your score, factors, vitals and training load on the wrist, plus the score as a filling heart, a training-load complication, and a configurable single metric. • Home-screen widgets — a score widget, plus two configurable Vitals widgets where you choose every metric shown. • The science, in-app — an About tab explaining how the score is calculated, with links to the research, and saying plainly where the evidence is contested. PRIVATE BY DESIGN Your health data never leaves your device. Sthenos reads from Apple Health and computes everything locally — no account, no sign-up, no tracking, no ads, no servers. Even the AI insights run on-device. WHAT IT READS (read-only, from Apple Health) • For the score: HRV, resting heart rate, heart rate, sleep, workouts • For Vitals: blood oxygen, respiratory rate, VO₂ max, steps, active energy, wrist temperature, body mass • For the optional fitness-age card: date of birth, biological sex, height, body composition, exercise and stand time, walking heart rate, mobility measures, daylight, blood glucose and pressure Nothing is written back to Apple Health. REQUIRES • iPhone with iOS 18 or later • Apple Watch (Series 4 or later) worn regularly, including overnight, for HRV and sleep. The watch app needs watchOS 11. • On-device AI insights require iOS 26 and an Apple-Intelligence-capable iPhone Sthenos is a personal wellness tool. It is not a medical device and does not provide medical advice. Apple Watch HRV is suitable for personal trends and is not clinical-grade. Always consult a healthcare professional for medical concerns.

Screenshots

Værftet4 screens
Sthenos4 screens

Verdict

The call

The clearest difference is price: Værftet at Free against Sthenos's $3.99. Værftet also leads on iOS requirement (15.5 vs 18.0). On update cadence, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Værftet is free to download; Sthenos costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Værftet ships an update every 5 days, Sthenos every 11 days. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 4 level
Værftet versus Sthenos: the parameters behind the verdict, then further details
ParameterVærftetSthenos
PriceFree — better$3.99
Update frequencyEvery 5 days — betterEvery 11 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.5 — better18.0
Further details — not scored
Size60 MB5 MB
Age rating4+4+
DeveloperBooking BoardGeorgios Stavropoulos

In-app purchases

None

Værftet

No in-app purchases

None

Sthenos

No in-app purchases

Questions

Is Værftet free?
Værftet is free to download, with no in-app purchases.
Is Sthenos free?
Sthenos costs $3.99, with no in-app purchases.
Do Værftet or Sthenos have ads?
Neither Værftet nor Sthenos shows ads.
Which is updated more often, Værftet or Sthenos?
Værftet ships an update every 5 days, and Sthenos every 11 days. Most recently, Værftet was updated on October 1, 2026 and Sthenos on October 4, 2026.

Other comparisons