# BGC Science vs Sona by Pelago

The clearest difference is review sentiment: Sona by Pelago at 83% against BGC Science's 0%. Sona by Pelago also leads on rating (4.7 vs 1.8) and update cadence (weekly vs every 2 months). BGC Science's advantage is monetization model (free vs ad-supported) and iOS requirement (12.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

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

Sona by Pelago holds the better App Store score, 4.7 against 1.8. That said, the two scores are not equally well evidenced: Sona by Pelago has 27 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of BGC Science's written reviews are positive against 83% of Sona by Pelago's.

BGC Science ships an update every 2 months, Sona by Pelago weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | BGC Science | Sona by Pelago |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (4 ratings)](https://appshunter.io/ios/app/bgc-science/id1508696910/reviews) | **[4.7 (27 ratings)](https://appshunter.io/ios/app/sona-by-pelago/id6758111708/reviews)** |
| Number of ratings | 4 | **27** |
| Positive reviews | 0.0% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 182 MB | 86 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Northeastern University Information Services](https://appshunter.io/developer/455790172) | [Digital Therapeutics Ltd](https://appshunter.io/developer/1172849792) |

## What reviewers say

### BGC Science

[App page](https://appshunter.io/ios/app/bgc-science/id1508696910)

Conduct auditory and cognitive tests from home using this portable psychology laboratory. Developed by Northeastern University's Brain Game Center, it supports mental fitness and well-being.

**Highlights:** Home-based testing, Auditory tests, Cognitive tests, Mental fitness support, Developed by university research center

**Features:** macOS Compatibility

**In-app purchases:** none


### Sona by Pelago

[App page](https://appshunter.io/ios/app/sona-by-pelago/id6758111708)

This AI-powered coach offers a voice-first approach to mental well-being, providing a non-judgmental space to process thoughts and feelings anytime. It learns your patterns to offer personalized support for managing anxiety, building habits, and improving sleep.

**Highlights:** Voice-first conversations, Personalized AI learning, Non-judgmental listening, Habit building support, Anxiety management, Sleep improvement, Always available check-ins

**In-app purchases:** none


## Frequently asked questions

### Is BGC Science free?

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

### Is Sona by Pelago free?

Sona by Pelago is free to download, with no in-app purchases.

### Which has better reviews, BGC Science or Sona by Pelago?

Sona by Pelago is rated higher. BGC Science averages 1.8 out of 5 from 4 ratings, while Sona by Pelago averages 4.7 from 27 ratings.

### Do BGC Science or Sona by Pelago have ads?

Neither BGC Science nor Sona by Pelago shows ads.

### Which is updated more often, BGC Science or Sona by Pelago?

BGC Science ships an update every 2 months, and Sona by Pelago weekly. Most recently, BGC Science was updated on November 3, 2026 and Sona by Pelago 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.*