# D1 System vs Tradetap Pro

The clearest difference is iOS requirement: D1 System at 8.0 against Tradetap Pro's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | D1 System | Tradetap Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tradetap-pro/id1563008187/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 6 MB | 46 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [China Security & Fire IOT Sensing Co., Ltd.](https://appshunter.io/developer/914724038) | [Skilled Pro Alliance, LLC](https://appshunter.io/developer/1424726787) |

## What reviewers say

### D1 System

[App page](https://appshunter.io/ios/app/d1-system/id914724035)

This app allows users to remotely manage an SMS alarm system. It enables sending text messages for home protection, configuring alarm host parameters, and setting zone and RFID card names. Users can also manage SMS codes.

**Highlights:** Send SMS for home protection, Configure alarm host parameters, Set zone names, Set RFID card names, Manage SMS codes

**Features:** macOS Compatibility

**In-app purchases:** none


### Tradetap Pro

[App page](https://appshunter.io/ios/app/tradetap-pro/id1563008187)

This app connects flooring dealers and installers with digital tools for managing work orders, negotiations, and project documents. Installers can track job changes, negotiate, and send invoices directly from the platform.

**Highlights:** Manage Work Orders, Handle Negotiations, Project Document Management, Shared Calendars, Job Change Tracking, Invoice Submission

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is D1 System free?

D1 System is free to download, with no in-app purchases.

### Is Tradetap Pro free?

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

### Do D1 System or Tradetap Pro have ads?

Neither D1 System nor Tradetap Pro shows ads.

### Which is updated more often, D1 System or Tradetap Pro?

D1 System ships an update every 2 months, and Tradetap Pro every 2 months. Most recently, D1 System was updated on October 1, 2026 and Tradetap Pro on October 6, 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.*