# Responder vs REZAP

Responder and REZAP are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Responder ships an update every 8 months, REZAP every 13 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Responder | REZAP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 13 months |
| Monetization | Free | — |
| Size | 32 MB | 21 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PageOne Communications Ltd](https://appshunter.io/developer/562917459) | [CAMLIN LTD](https://appshunter.io/developer/1165023713) |

## What reviewers say

### Responder

[App page](https://appshunter.io/ios/app/responder/id563249043)

This secure messaging app provides a closed user-group communication platform for businesses. It offers features like priority alerts, status updates, and location reporting to enhance worker management and emergency response.

**Highlights:** Secure 2-way closed user group messaging, Priority alert messaging, Repeated alerts for missed messages, Status updates, Location reporting, Integration with PageOne Connect/Flare, API gateway integration

**Features:** macOS Compatibility

**In-app purchases:** none


### REZAP

[App page](https://appshunter.io/ios/app/rezap/id1165023714)

**In-app purchases:** none


## Frequently asked questions

### Is Responder free?

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

### Is REZAP free?

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

### Do Responder or REZAP have ads?

Neither Responder nor REZAP shows ads.

### Which is updated more often, Responder or REZAP?

Responder ships an update every 8 months, and REZAP every 13 months. Most recently, Responder was updated on October 24, 2026 and REZAP on October 26, 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.*