# Df vs Quad OPMS

The clearest difference is update cadence: Df at every 3 weeks against Quad OPMS's every 3 months. Quad OPMS's advantage is iOS requirement (12.0 vs 15.6). 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.

Df ships an update every 3 weeks, Quad OPMS every 3 months. The most recent releases landed on September 29, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Df | Quad OPMS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 136 MB | 36 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Nishant Srivastav](https://appshunter.io/developer/1252544397) | [Autosys Industrial Solutions Private Limited](https://appshunter.io/developer/1703269777) |

## What reviewers say

### Df

[App page](https://appshunter.io/ios/app/df-os/id1458479861)

This app digitizes and digitalizes shopfloor manufacturing operations. It uses deep-tech capabilities like BPM, IoT, and AI/ML to manage complex processes, offering a no-code UI for business process definition and business intelligence. It supports various departments and includes a tool for achieving company sustainability goals.

**Highlights:** Shopfloor digitization, BPM, IoT, AI/ML integration, No-code UI for business processes, Business Intelligence (BI), Supports Production, Quality, Safety, Maintenance, Utility, Store departments, ESG tool for sustainability goals

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

**In-app purchases:** none


### Quad OPMS

[App page](https://appshunter.io/ios/app/quad-opms/id6470180247)

**In-app purchases:** none


## Frequently asked questions

### Is Df free?

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

### Is Quad OPMS free?

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

### Do Df or Quad OPMS have ads?

Neither Df nor Quad OPMS shows ads.

### Which is updated more often, Df or Quad OPMS?

Df ships an update every 3 weeks, and Quad OPMS every 3 months. Most recently, Df was updated on September 29, 2026 and Quad OPMS on October 16, 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.*