# Callibri Biofeedback vs TailSense

Callibri Biofeedback and TailSense are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Callibri Biofeedback | TailSense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/callibri-biofeedback/id1517798639/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | — |
| Size | 269 MB | 44 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [BRAINBIT INC.](https://appshunter.io/developer/1510548622) | [Tveit.net](https://appshunter.io/developer/672612981) |

## What reviewers say

### Callibri Biofeedback

[App page](https://appshunter.io/ios/app/callibri-biofeedback/id1517798639)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### TailSense

[App page](https://appshunter.io/ios/app/tailsense/id6759740532)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Callibri Biofeedback free?

Callibri Biofeedback is free to download, with no in-app purchases.

### Is TailSense free?

TailSense is free to download, with no in-app purchases.

### Do Callibri Biofeedback or TailSense have ads?

Neither Callibri Biofeedback nor TailSense shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*