# Respondr PTT vs DMR User Database

Respondr PTT and DMR User Database 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.

Respondr PTT ships an update every 2 months, DMR User Database every 3 months. The most recent releases landed on September 30, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Respondr PTT | DMR User Database |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/dmr-user-database/id6749166551/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Free |
| Size | 38 MB | 28 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Teleproject Srl](https://appshunter.io/developer/1818536505) | [Andreas Krenz](https://appshunter.io/developer/1829006949) |

## What reviewers say

### Respondr PTT

[App page](https://appshunter.io/ios/app/respondr-ptt/id6746786206)

**Features:** macOS Compatibility

**In-app purchases:** none


### DMR User Database

[App page](https://appshunter.io/ios/app/dmr-user-database/id6749166551)

This app serves as a comprehensive digital phonebook for the Digital Mobile Radio (DMR) community. It allows users to quickly search for Radio IDs, Callsigns, and other user details across multiple integrated databases. Ideal for ham radio operators, it facilitates connections and exploration within the digital radio world.

**Highlights:** Comprehensive search by ID, Callsign, Name, or Location, Integrates multiple DMR databases, View users per country, Built-in logbook for radio contacts, Database export for specific devices, Interactive maps for repeaters, Offline functionality

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Respondr PTT free?

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

### Is DMR User Database free?

DMR User Database is free to download, with no in-app purchases.

### Do Respondr PTT or DMR User Database have ads?

Neither Respondr PTT nor DMR User Database shows ads.

### Which is updated more often, Respondr PTT or DMR User Database?

Respondr PTT ships an update every 2 months, and DMR User Database every 3 months. Most recently, Respondr PTT was updated on September 30, 2026 and DMR User Database on October 4, 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.*