# BGC Science vs Primespan

The clearest difference is review sentiment: Primespan at 100% against BGC Science's 0%. Primespan also leads on update cadence (fortnightly vs every 2 months). BGC Science's advantage is iOS requirement (12.0 vs 16.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

BGC Science ships an update every 2 months, Primespan fortnightly. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | BGC Science | Primespan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/primespan/id6749330919/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 182 MB | 51 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Northeastern University Information Services](https://appshunter.io/developer/455790172) | [Primespan](https://appshunter.io/developer/1830029070) |

## 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


### Primespan

[App page](https://appshunter.io/ios/app/primespan/id6749330919)

Access all your videos in one convenient application. Receive notifications for the latest news and updates, and save favorite posts for quick retrieval. Enjoy seamless access without needing to remember passwords.

**Highlights:** Access all videos in one app, Push notifications for news, Password-free video access, Save favorite posts, Control panel access

**In-app purchases:** none


## Frequently asked questions

### Is BGC Science free?

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

### Is Primespan free?

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

### Do BGC Science or Primespan have ads?

Neither BGC Science nor Primespan shows ads.

### Which is updated more often, BGC Science or Primespan?

BGC Science ships an update every 2 months, and Primespan fortnightly. Most recently, BGC Science was updated on October 12, 2026 and Primespan on October 16, 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.*