Comparison

footing vs Bivryn Biological Intelligence

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

Head to head
About

footing

This app tracks your walking and cognitive abilities using your phone. It provides insights into your mobility and thinking patterns over time, without requiring wearables or clinic visits. The app offers a free experience with no subscription needed to start.

Highlights
  • Mobility Age assessment
  • Cognitive Age assessment
  • Personalized signature analysis
  • Measures pace, stride, and steadiness
  • Tracks reaction time and memory
  • Optional Apple Health integration
  • Secure data sharing with trusted individuals
Features
Read full description

Footing shows how you walk and how you think, using the phone you already carry. No wearable required. No blood draw. No clinic visit. Short walks and quick brain tests, on your own schedule, build a picture of your mobility and your thinking, tracked over time. Free to use. No subscription required to start. See how you move and think. WHAT YOU SEE Mobility Age: the age whose typical pace, stride and steadiness match your recent walks. It is built from about four walks. Cognitive Age: the age whose typical response speed and memory match your recent tests. It is built from about ten tests of Symbol Match and Sequence Recall; the first three of each are practice and do not count. Each age comes with a range, which narrows as you keep testing, so small changes are not overstated. Your signature: from your very first test, how your latest results compare with your own usual. A shape and one sentence, never a number. WHAT IT MEASURES From your walks: Pace: your walking speed Stride: your step length Steadiness: how consistent your steps are Symmetry: the balance between left and right steps Turn: how quickly you turn around Efficiency: how regular your movement is while you walk From four short tests (Symbol Match, Sequence Recall, Tap Rhythm, Typing Burst): Reaction: how quickly you respond Precision: how accurately you respond Attention: how consistent your response time is Memory: how long a sequence you can recall Timing: how steady your tap rhythm is Fluency: how quickly you type in a short burst HOW IT WORKS Walk. Put your phone in your pocket and choose a 30-second walk, a 40-step walk, or a walk with a turn. Start one whenever you want. There is no fixed schedule. Think. Four short tasks, also on demand. Health. A Daily Question: five quick questions on how you feel, your energy, sleep, steadiness and focus, so you can see how you felt alongside your results. And an optional Health Intake on your history and lifestyle, saved as you go. Daily walking. If you allow health access, footing reads one daily walking summary from Apple Health: walking speed, step length, asymmetry, double support, steps, and distance. Apple Health derives these from your iPhone. Apple Watch. The optional Apple Watch app captures arm swing during a walk. Results arrive within seconds. See them in the app or on the web at app.footinghealth.com. SHARING Invite a family member or someone you trust to see your results. They accept a short sharing agreement before they can see anything, and you can end their access at any time. Sign in with Apple, Google, a passkey, or your email and a password. RESEARCH You can choose to contribute your measurements to research. It is opt-in only. You grant consent in Settings and can withdraw it there at any time. Without that consent, nothing goes to research. If you opt in, the data is de-identified. No name, email, or device. Dates are shifted. You are described only by age in years, sex, and broad height and weight bands. Only computed measurements are shared, never recordings. WHY IT MATTERS Walking speed has been called the sixth vital sign. Mobility and thinking tend to change gradually, which makes the changes easy to miss. A short, repeatable measurement shows where you stand today and how that compares with your own history. YOUR DATA Your walk recordings are stored on our servers, encrypted, so your results can be rescored as our scoring improves. You can delete your account in the app under Settings, or email hello@footinghealth.com. You must be 18 or older to use footing. Footing is a general wellness app. It is not a medical device and does not diagnose, treat, cure, or predict any disease. Footing is made by Carova Labs, LLC. footinghealth.com

About

Bivryn Biological Intelligence

Features
Read full description

Your wearable knows what happened. Bivryn tells you why. "Why do I feel off today?" "Is coffee wrecking my sleep?" "Did that actually help?" Most health apps wait for you to ask. Bivryn reads your Apple Health stream every morning — sleep, HRV, recovery, blood work, behaviour, weather — names what changed and the likely reason, and tells you whether what you tried last time worked. The daily reading is free, with the wearable you already own; membership adds the patterns and the answers. TODAY One calm reading of how your biology is landing, from sleep, HRV, resting heart rate, respiratory rate, wrist temperature, bedtime timing and travel. The Arc behind it draws your last 24 hours. Under it, the day ahead with clock times — how long the morning holds, when the dip lands, whether the evening comes back — and this week against last, in numbers. WHY Ask anything — why am I tired this week, what changed in my last 14 days — and Bivryn reads across a year of your biology to answer. PATTERNS Correlations across your behaviour and biology you'd never spot by hand, including the 1, 2 and 3-day delays where the real signal usually lives. PROOF Try one change at a time — a supplement, an earlier dinner, a training protocol. Bivryn captures your baseline, tracks adherence, and tells you honestly whether your biology actually moved. LABS Upload a lab PDF. Bivryn reads cholesterol, ferritin, vitamin D, hs-CRP, glucose, thyroid and hormone markers, and connects them to your sleep, energy and recovery. MEMORY When today's biology matches a day from your own history, Bivryn surfaces what came next, over a living timeline of travel, recovery stretches and supplement changes. LONG ARC Bivryn Bio Age: a continuous reading from up to nine channels, scored against your own baselines and published ranges, computed on your device. RIGHT NOW Breathing, mindful walks, eye rest, light reset — with the HRV change measured before and after. WORKS WITH WHAT YOU ALREADY WEAR Apple Watch, Oura, WHOOP, Garmin, Withings and lab panels all flow in through Apple Health. Bivryn reads every source you have and tells you which one recorded last night. PRIVACY BY DEFAULT Your biology stays on your device, syncing only to your own iCloud account if you choose. We don't sell your data or share it with advertisers. Export everything as JSON, or delete everything, with one tap from inside the app. Requires iOS 17 or later. Apple Watch supported but not required. On-device interpretation of the free reading uses Apple Intelligence where available. Bivryn is not a medical device. It provides informational and educational insights about your biology and is not intended to diagnose, treat, cure or prevent any disease. For medical concerns, consult a healthcare professional. WHAT'S FREE, WHAT MEMBERSHIP ADDS Free: the daily reading, the forecast, the weekly reading, your year, personal bests, rhythms, blood work, the Doctor Snapshot, the Apple Watch app and widgets. Membership: Discoveries (patterns between what you do and what your body does), Ask Bivryn (answers from your own data), the written chapters in Body Memory and the weekly recap. $6.99/month or $39.99/year, first 7 days free. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours of the end of the current period. Manage or cancel in your Apple Account settings after purchase. Any unused portion of a free trial is forfeited when you buy a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Bivryn Terms of Service: https://bivryn.web.app/terms Privacy Policy: https://bivryn.web.app/privacy

Screenshots

footing4 screens
Bivryn Biological Intelligence4 screens

Verdict

The call

The clearest difference is in-app purchases: footing at none against Bivryn Biological Intelligence's 2. footing also leads on iOS requirement (15.1 vs 17.0). Bivryn Biological Intelligence's advantage is update cadence (every 2 weeks vs every 4 weeks). On price, ads 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

Both are free to download. Bivryn Biological Intelligence sells 2 in-app purchases, starting at $6.99 per month. footing asks for nothing beyond the download.

UpkeepUpdate frequency

footing ships an update every 4 weeks, Bivryn Biological Intelligence every 2 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
footing versus Bivryn Biological Intelligence: the parameters behind the verdict, then further details
ParameterfootingBivryn Biological Intelligence
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod, Apple WatchiPhone, iPad, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size52 MB24 MB
Age rating17+12+
DeveloperCarova Labs, LLCAmita Dhand

In-app purchases

None

footing

No in-app purchases

2 purchases

Bivryn Biological Intelligence

Subscriptions2
  • Bivryn Premium Monthly7 Days trial$6.991 Month
  • Bivryn Premium Annual7 Days trial$39.991 Year

Questions

Is footing free?
footing is free to download, with no in-app purchases.
Is Bivryn Biological Intelligence free?
Bivryn Biological Intelligence is free to download, with in-app purchases available.
Do footing or Bivryn Biological Intelligence have ads?
Neither footing nor Bivryn Biological Intelligence shows ads.
Which is updated more often, footing or Bivryn Biological Intelligence?
footing ships an update every 4 weeks, and Bivryn Biological Intelligence every 2 weeks. Most recently, footing was updated on October 31, 2026 and Bivryn Biological Intelligence on November 5, 2026.

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