Comparison

Callibri Biofeedback vs BlueLine Alpha

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

Head to head
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.

About

BlueLine Alpha

This application visualizes, records, and streams physiological and motion data from compatible hardware. It's designed for engineering, research, and educational purposes, offering real-time insights into signal integrity and device performance.

Highlights
  • Real-time data visualization
  • Physiological data recording
  • Motion data streaming (X, Y, Z axis)
  • G-value calculation
  • Bluetooth Low Energy (BLE) connectivity
  • Engineering and research focused
Features
Read full description

BlueLine is the companion app for the BrainBit BlueLine device family. It is intended for engineering, research and educational use. Connect a BlueLine device over Bluetooth Low Energy to view, record and export physiological and motion data in real time. EEG • Four-channel live EEG at 250 Hz, shown in microvolts • Power spectrum with delta, theta, alpha and beta band power • Adjustable signal gain and a 50/60 Hz power-line filter for the live view • Signal quality overview for every channel ECG AND HEART RATE VARIABILITY • Live ECG waveform and heart rate from channel 1 • Heart rate variability score from beat-to-beat intervals PROFILES FOR PEOPLE AND ANIMALS • Human, dog and horse profiles with matching electrode layouts • Reward feeder for animal sessions: set up a compatible Wi-Fi feeder in the app and give a reward with one tap. Every reward is time-stamped with the EEG for training and research. RECORDING AND EXPORT • Raw EEG, accelerometer data and reward events saved as CSV files with device details • Lost samples are marked, so recordings stay reliable for analysis • Share recordings directly from the app BlueLine is not a medical device. It is not intended to diagnose, treat, cure or prevent any disease, and its measurements must not be used for medical decisions.

Screenshots

Callibri Biofeedback4 screens
BlueLine Alpha4 screens

Verdict

The call

The clearest difference is rating: BlueLine Alpha at 5.0 against Callibri Biofeedback's 3.0. BlueLine Alpha also leads on update cadence (every 2 months vs every 4 months). Callibri Biofeedback's advantage is iOS requirement (16.0 vs 26.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BlueLine Alpha holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Callibri Biofeedback ships an update every 4 months, BlueLine Alpha every 2 months. The most recent releases landed on October 15, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 6 level
Callibri Biofeedback versus BlueLine Alpha: the parameters behind the verdict, then further details
ParameterCallibri BiofeedbackBlueLine Alpha
PriceFreeFree
Rating3.0 (1 ratings)5.0 (1 ratings) — better
Number of ratings11
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone
Requires iOS16.0 — better26.0
Further details — not scored
Size269 MB17 MB
Age rating12+4+
DeveloperBRAINBIT INC.Enes Arslan

Customer experience

Callibri Biofeedback

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

BlueLine Alpha

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Callibri Biofeedback

No in-app purchases

None

BlueLine Alpha

No in-app purchases

Questions

Is Callibri Biofeedback free?
Callibri Biofeedback is free to download, with no in-app purchases.
Is BlueLine Alpha free?
BlueLine Alpha is free to download, with no in-app purchases.
Which has better reviews, Callibri Biofeedback or BlueLine Alpha?
BlueLine Alpha is rated higher. Callibri Biofeedback averages 3.0 out of 5 from 1 ratings, while BlueLine Alpha averages 5.0 from 1 ratings.
Do Callibri Biofeedback or BlueLine Alpha have ads?
Neither Callibri Biofeedback nor BlueLine Alpha shows ads.
Which is updated more often, Callibri Biofeedback or BlueLine Alpha?
Callibri Biofeedback ships an update every 4 months, and BlueLine Alpha every 2 months. Most recently, Callibri Biofeedback was updated on October 15, 2026 and BlueLine Alpha on October 28, 2026.

Other comparisons