# Bi vs BluLateral

The clearest difference is rating: BluLateral at 4.5 against Bi's 4.3. Bi's advantage is review sentiment (62% vs 50%) and ratings volume (28 vs 4). On price, update cadence, ads and in-app purchases there is nothing between them.

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

BluLateral holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Bi has 28 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 62% of Bi's written reviews are positive against 50% of BluLateral's, so the app with the better star average is not the one people write more warmly about.

Bi ships an update every 2 months, BluLateral every 3 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bi | BluLateral |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (28 ratings)](https://appshunter.io/ios/app/bi-tapp/id1215862912/reviews) | **[4.5 (4 ratings)](https://appshunter.io/ios/app/blulateral/id1668454988/reviews)** |
| Number of ratings | **28** | 4 |
| Positive reviews | **61.5% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 34 MB | 29 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bi-Tapp Inc](https://appshunter.io/developer/1456298566) | [BluTapp, Inc.](https://appshunter.io/developer/1758795593) |

## What reviewers say

### Bi

[App page](https://appshunter.io/ios/app/bi-tapp/id1215862912)

This app utilizes patented bilateral tapping technology to help calm the nervous system and reduce stress and anxiety. It aims to increase feelings of safety and calm, improve focus, and enhance sleep quality. The app can be used independently or alongside other relaxation methods.

**Highlights:** Bilateral tapping technology, Anxiety and stress reduction, Improved focus and sleep, Adjustable speed, intensity, and duration, Information tab for usage guidance

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

**In-app purchases:** none


### BluLateral

[App page](https://appshunter.io/ios/app/blulateral/id1668454988)

This application provides wireless bilateral stimulation for general well-being and relaxation. It aims to support users in managing stress and promoting a sense of calm through innovative technology.

**Highlights:** Wireless bilateral stimulation, Supports general well-being, Promotes relaxation, Personal device integration, Innovative technology

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bi free?

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

### Is BluLateral free?

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

### Which has better reviews, Bi or BluLateral?

BluLateral is rated higher. Bi averages 4.3 out of 5 from 28 ratings, while BluLateral averages 4.5 from 4 ratings.

### Do Bi or BluLateral have ads?

Neither Bi nor BluLateral shows ads.

### Which is updated more often, Bi or BluLateral?

Bi ships an update every 2 months, and BluLateral every 3 months. Most recently, Bi was updated on October 9, 2026 and BluLateral on October 7, 2026.

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