# Reaction Visual & Acoustical vs Busco

The clearest difference is review sentiment: Busco at 100% against Reaction Visual & Acoustical's 0%. Busco also leads on rating (4.8 vs 4.0) and update cadence (monthly vs every 6 months). Reaction Visual & Acoustical's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Busco holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Busco has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Reaction Visual & Acoustical's written reviews are positive against 100% of Busco's.

Reaction Visual & Acoustical ships an update every 6 months, Busco monthly. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Reaction Visual & Acoustical | Busco |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/reaction-visual-and-acoustical/id1060588850/reviews) | **[4.8 (16 ratings)](https://appshunter.io/ios/app/busco/id6749763092/reviews)** |
| Number of ratings | 2 | **16** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | **Free** | Ad-supported |
| Size | 1 MB | 77 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Viacheslav Romanenko](https://appshunter.io/developer/1046372418) | [Salmos AI, Inc.](https://appshunter.io/developer/1831963554) |

## What reviewers say

### Reaction Visual & Acoustical

[App page](https://appshunter.io/ios/app/reaction-visual-and-acoustical/id1060588850)

Measure your response time to visual and auditory cues. This app provides a simple way to test and track how quickly you react to different stimuli.

**Highlights:** Visual signal reaction testing, Acoustical signal reaction testing, Sensorimotor response measurement, Simple user interface

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

**In-app purchases:** none


### Busco

[App page](https://appshunter.io/ios/app/busco/id6749763092)

Discover local food, events, and nightlife in your city. Find hidden pop-ups, restaurant openings, and live music with an interactive map that sorts results by distance. Explore hyperlocal vendors and support local creators.

**Highlights:** Discover local events and food, Map of city happenings, Sorts results by distance, Highlights hyperlocal vendors, Real-time interactive map, Finds hidden pop-up events

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

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Visual & Acoustical free?

Reaction Visual & Acoustical is free to download, with no in-app purchases.

### Is Busco free?

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

### Which has better reviews, Reaction Visual & Acoustical or Busco?

Busco is rated higher. Reaction Visual & Acoustical averages 4.0 out of 5 from 2 ratings, while Busco averages 4.8 from 16 ratings.

### Do Reaction Visual & Acoustical or Busco have ads?

Busco shows ads; Reaction Visual & Acoustical does not.

### Which is updated more often, Reaction Visual & Acoustical or Busco?

Reaction Visual & Acoustical ships an update every 6 months, and Busco monthly. Most recently, Reaction Visual & Acoustical was updated on November 9, 2026 and Busco on November 5, 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.*