# Responder vs Multitone Nucleus™

The clearest difference is update cadence: Multitone Nucleus™ at every 3 weeks against Responder's every 8 months. Responder's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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, Multitone Nucleus™ every 3 weeks. The most recent releases landed on September 30, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Responder | Multitone Nucleus™ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 32 MB | 48 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [PageOne Communications Ltd](https://appshunter.io/developer/562917459) | [Multitone Electronics Plc](https://appshunter.io/developer/820925320) |

## 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


### Multitone Nucleus™

[App page](https://appshunter.io/ios/app/multitone-nucleus/id6479646905)

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

**In-app purchases:** none


## Frequently asked questions

### Is Responder free?

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

### Is Multitone Nucleus™ free?

Multitone Nucleus™ is free to download, with no in-app purchases.

### Do Responder or Multitone Nucleus™ have ads?

Neither Responder nor Multitone Nucleus™ shows ads.

### Which is updated more often, Responder or Multitone Nucleus™?

Responder ships an update every 8 months, and Multitone Nucleus™ every 3 weeks. Most recently, Responder was updated on September 30, 2026 and Multitone Nucleus™ on September 28, 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.*