# Street Sentinel vs AjiHelp

The clearest difference is in-app purchases: Street Sentinel at none against AjiHelp's 2. Street Sentinel also leads on iOS requirement (13.0 vs 15.1). AjiHelp's advantage is update cadence (every 2 months vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. AjiHelp sells 2 in-app purchases, starting at $5.99 per month. Street Sentinel asks for nothing beyond the download.

Street Sentinel ships an update every 5 months, AjiHelp every 2 months. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Street Sentinel | AjiHelp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/street-sentinel/id1673037976/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 12 MB | 53 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Indiana University](https://appshunter.io/developer/383456988) | [mehdi bentot](https://appshunter.io/developer/1820625385) |

## What reviewers say

### Street Sentinel

[App page](https://appshunter.io/ios/app/street-sentinel/id1673037976)

This application detects gunshots in real-time, providing location and time data. It supports community intervention workers in violence prevention efforts by enabling rapid response to incidents. The system is designed to assess the impact of gunshot detection networks on community-led violence prevention strategies.

**Highlights:** Real-time gunshot detection, Location and time of incidents, Smartphone-based alert system, Supports community intervention workers, Violence prevention assessment

**Features:** macOS Compatibility

**In-app purchases:** none


### AjiHelp

[App page](https://appshunter.io/ios/app/ajihelp/id6747290577)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $5.99 | per month |
| Annual plan | $59.99 | per year |


## Frequently asked questions

### Is Street Sentinel free?

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

### Is AjiHelp free?

AjiHelp is free to download, with in-app purchases available.

### Do Street Sentinel or AjiHelp have ads?

Neither Street Sentinel nor AjiHelp shows ads.

### Which is updated more often, Street Sentinel or AjiHelp?

Street Sentinel ships an update every 5 months, and AjiHelp every 2 months. Most recently, Street Sentinel was updated on November 5, 2026 and AjiHelp on October 30, 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.*