# Collective Memory vs Pzzt! Group Alerts

The clearest difference is ads: Collective Memory at none against Pzzt! Group Alerts's shown. Pzzt! Group Alerts's advantage is update cadence (every 4 days vs every 11 days). 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.

Collective Memory ships an update every 11 days, Pzzt! Group Alerts every 4 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Collective Memory | Pzzt! Group Alerts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (24 ratings)](https://appshunter.io/ios/app/collective-memory/id6503454642/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 64.2% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 11 days | **Every 4 days** |
| Monetization | Free | — |
| Size | 132 MB | 55 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Play Build](https://appshunter.io/developer/1749084866) | [Abdelrahman Abdelrahim](https://appshunter.io/developer/6771546659) |

## What reviewers say

### Collective Memory

[App page](https://appshunter.io/ios/app/collective-memory/id6503454642)

This app encourages sharing authentic, real-time photos without filters or uploads from galleries. It connects users based on shared moments and uses AI to provide insights into captured content. The platform fosters active participation and a community that values spontaneity.

**Highlights:** Real-time photo capture only, Automatic time and location tagging, Connect with users based on shared moments, AI-powered photo analysis for insights, Active community participation required, Open API for developer integration

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

**In-app purchases:** none


### Pzzt! Group Alerts

[App page](https://appshunter.io/ios/app/pzzt-group-alerts/id6807479468)

**In-app purchases:** none


## Frequently asked questions

### Is Collective Memory free?

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

### Is Pzzt! Group Alerts free?

Pzzt! Group Alerts is free to download, with no in-app purchases.

### Do Collective Memory or Pzzt! Group Alerts have ads?

Pzzt! Group Alerts shows ads; Collective Memory does not.

### Which is updated more often, Collective Memory or Pzzt! Group Alerts?

Collective Memory ships an update every 11 days, and Pzzt! Group Alerts every 4 days. Most recently, Collective Memory was updated on November 8, 2026 and Pzzt! Group Alerts on October 31, 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.*