Social Brain Contacts vs EMP
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Social Brain Contacts
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'Social Brain Contacts' is a react-native expo app that utilizes research in social brain theory to provide tools to users to group their phone contacts into bins. This app aims to help users manage and understand their social relationships better. Social Brain Theory suggests that human social networks have a layered structure where each individual has around 5 intimate relationships (e.g. romantic partners), 15 best friends, 50 good friends, 150 friends, and so on. These layers, sometimes referred to as 'Dunbar's Numbers', are thought to be cognitively constrained by the size of our brains. 'Social Brain Contacts' takes this research into account to provide users with tools to sort their contacts, helping them manage and reflect upon their social relationships.
EMP
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1. Map mode Based on the site coordinates, visually display the site location and pollution situation on the map 2. Equipment management Online management and monitoring equipment, querying real-time data from the site, real-time monitoring 3. Data View the latest and historical data trend charts of the device
Screenshots
Verdict
The clearest difference is update cadence: Social Brain Contacts at every 2 weeks against EMP's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Social Brain Contacts ships an update every 2 weeks, EMP every 2 months. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.
| Parameter | Social Brain Contacts | EMP |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks β better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 β better |
| Further details β not scored | ||
| Size | 25 MB | 90 MB |
| Age rating | 4+ | 4+ |
| Developer | Eric Swanson | ζ ι |
In-app purchases
Social Brain Contacts
No in-app purchases
EMP
No in-app purchases
