Comparison

Flowly vs Callibri Biofeedback

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

Head to head
About

Flowly

This app offers a 12-week virtual reality program designed to help individuals manage chronic pain and anxiety. It combines biofeedback, VR training, and expert coaching to guide users from pain to a state of flow.

Highlights
  • 12-week curated program
  • VR nervous system training
  • HR sensor integration
  • Flowly Coaching sessions
  • Virtual support groups (Bubbles)
  • Expert-led workshops
  • 2D breathwork guides
Read full description

Chronic pain sucks. Our team felt this firsthand, and enlisted a world class team of pain experts to design a 12-week curated program designed to take you from pain state, to flow state “Flowly helps manage not only the physical aspects of living with pain and anxiety, but also offers invaluable support to overcome the mental challenges that come along with it.” -Dr. Aman Mahajan, Chair of Perioperative Medicine at University of Pittsburgh Medical Center “Flowly’s virtual worlds help users reclaim a sense of calm and safety at the emotional and physical level, thus allowing them to reduce activation in their nervous system and pain in their body.” -Pierre Etienne-Vannier, Mind-Body Practitioner *How Does It Work?* Flowly’s Healing from Pain Program is a curated 12-week program with new lessons, daily trainings, and access to a coach included Weeks 1-4: Building the Foundation In your first week, you will receive a Kit that includes a VR headset and a HR sensor so you can engage in your daily VR nervous system training. You will also schedule your first of three Flowly Coaching sessions to set your goals for the program, design your Flowly routine moving forward, and answer any questions you might have Weeks 5-8: Cultivating Intrinsic Brain-Body Regulation Engage in trainings that utilize your nervous system to take control of various psychological and emotional aspects of your chronic pain experience. All while discovering new environments and tools to create physical safety. Meet with your Flowly coach for your second session to check in on progress and goals Weeks 9-12: Establishing Enduring Practice Reinforcing all the training you have accomplished so far, we will put together all the tools and learnings into a daily ritual that best fits your life now, but most importantly, your life and dreams moving forward. You will also meet with your coach for your last session to wrap up your program and establish your steps moving forward All throughout the program, you will have access to: * Bubbles: virtual small support groups where heroes can connect with one another and engage in activities to do with improving their health * Workshops: with health experts and specialists on specific educational health topics * Tools: 2D breathwork guides, educational articles, and more in the Resources tab in-app * Forum: a community forum where heroes can share their experiences and questions After 3 months you will have the opportunity to go into “Maintenance Mode” with continued access to the program content, new VR worlds and experiences, and other in-app resources. *Can This Actually Work?* Flowly marries two powerful approaches: biofeedback for relaxation training and Virtual Reality. There are 1,000+ studies dedicated to both therapies for pain. Flowly itself is partnered with UPMC and USC for studies with a grant awarded by the National Institute of Health. Dr. Robert Tien, the former Chair of Neuroradiology at Duke, says this, “Flowly’s experiences help enhance a user’s Vagus Nerve function, which plays a crucial role in preventing inflammation, increasing heart resilience, and treating symptoms of chronic pain and anxiety. Flowly is fun and accessible, but ultimately, can seriously improve overall life quality with consistent use” *Subscription Pricing and Terms* Healing from Pain Program - Program Fee - $474.99 - Maintenance Fee - $4.99/month Standard Flowly Subscription - Change My Life Membership - $44.99/month or $239.99/year - Community Membership - $4.99/month or $59.99/year Your subscription will automatically renew unless turned off in your iTunes Account Settings at least 24 hours before the current period ends. Subscriptions will be charged to your iTunes account. For more information, see our terms at https://www.flowly.world/terms-of-service and privacy policy at https://www.flowly.world/privacy-policy

About

Callibri Biofeedback

This system uses a sensor to measure muscle tone and visualizes your muscle activity in a game-like interface. It's designed for self-regulation training to improve muscle strength and bodily functions.

Highlights
  • Muscle tone evaluation (EMG signal)
  • Visualizes muscle activity in games
  • Muscle restoration for stroke/CP
  • Home fitness muscle strengthening
  • Increases physiological reserves
Features
Read full description

The "Callibri Biofeedback" system is designed for self-regulation training sets prepared by specialists with a goal of being able to manipulate the body's systems at will. The application works with "Callibri" sensor that instantly evaluates muscle tone level (the EMG signal) and the app visualizes muscle activity in the form of a game situation. The Callibri Biofeedback system is used for: • restoration of weakened muscles in stroke and cerebral palsy; • training, increasing the strength and functionality of muscles in the field of home fitness; • increasing and maintaining the physiological reserves of the body.

Screenshots

Flowly4 screens
Callibri Biofeedback4 screens

Verdict

The call

The clearest difference is rating: Flowly at 4.6 against Callibri Biofeedback's 3.0. Flowly also leads on ratings volume (401 vs 1) and update cadence (monthly vs every 4 months). Callibri Biofeedback's advantage is in-app purchases (none vs 11). On price, ads, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flowly sells 11 in-app purchases, starting at $4.99 per month. Callibri Biofeedback asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Flowly holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Flowly has 401 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Flowly ships an update monthly, Callibri Biofeedback every 4 months. The most recent releases landed on August 11, 2026 and August 18, 2026 respectively.

Scorecard5 real differences · 5 level
Flowly versus Callibri Biofeedback: the parameters behind the verdict, then further details
ParameterFlowlyCallibri Biofeedback
PriceFreeFree
Rating4.6 (401 ratings) — better3.0 (1 ratings)
Positive reviews85.4% of reviews—
Number of ratings401 — better1
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size432 MB269 MB
Age rating17+12+
DeveloperTamade LLCBRAINBIT INC.

Customer experience

Flowly

All ratings401 ratings
Positive89.0%
Neutral2.5%
Negative8.5%
Written reviews82 reviews
Positive85.4%
Neutral3.7%
Negative11.0%

Callibri Biofeedback

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

Flowly

Reported bugs

2 issues
  • App crashes when entering billing information
  • Incompatibility issues with certain phone models and VR headsets

Requested features

5 requests
  • Ability to walk around in VR worlds instead of just sitting
  • Integration with Apple Health and other fitness trackers
  • More diverse range of VR environments and experiences
  • Offline mode for VR sessions
  • Customizable breathing patterns and pacing

Callibri Biofeedback

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Flowly

Subscriptions10
  • Community Membership Monthly7 Days trial$4.991 Month
  • Flowly Journey Maintenance3 Months trial$4.991 Month
  • Flowly Basic Monthly$9.991 Month
Show 7 more
  • Flowly Basic Monthly7 Days trial$9.991 Month
  • Community Membership Yearly$39.991 Year
  • Flowly Pro Monthly$44.991 Month
  • Flowly Pro Monthly1 Month trial$44.991 Month
  • Flowly Basic Yearly$59.991 Year
  • Flowly Pro Yearly$239.991 Year
  • Flowly Family Plan$349.991 Year
One-time1
  • Healing from Pain Program$1000.00
None

Callibri Biofeedback

No in-app purchases

Questions

Is Flowly free?
Flowly is free to download, with in-app purchases available.
Is Callibri Biofeedback free?
Callibri Biofeedback is free to download, with no in-app purchases.
Which has better reviews, Flowly or Callibri Biofeedback?
Flowly is rated higher. Flowly averages 4.6 out of 5 from 401 ratings, while Callibri Biofeedback averages 3.0 from 1 ratings.
Do Flowly or Callibri Biofeedback have ads?
Neither Flowly nor Callibri Biofeedback shows ads.
Which is updated more often, Flowly or Callibri Biofeedback?
Flowly ships an update monthly, and Callibri Biofeedback every 4 months. Most recently, Flowly was updated on August 11, 2026 and Callibri Biofeedback on August 18, 2026.

Other comparisons