# TaskFlow vs Duct Calculator

The clearest difference is in-app purchases: TaskFlow at none against Duct Calculator's 1. TaskFlow also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Duct Calculator sells 1 in-app purchase, starting at $9.99 per year. TaskFlow asks for nothing beyond the download.

## The numbers

| Metric | TaskFlow | Duct Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free | — |
| Size | 63 MB | 8 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thuan Nguyen](https://appshunter.io/developer/1457531683) | [Vladimir Lukashov](https://appshunter.io/developer/6783697231) |

## What reviewers say

### TaskFlow

[App page](https://appshunter.io/ios/app/taskflow-project-management/id6757191241)

This visual project management app simplifies team workflows with customizable Kanban boards. Effortlessly organize tasks using drag-and-drop functionality, set due dates, and collaborate in real-time with team members. It's designed to keep everyone synchronized and projects on track.

**Highlights:** Visual project boards, Drag-and-drop task management, Team collaboration, Smart notifications, Activity log, Customizable lists

**Features:** macOS Compatibility

**In-app purchases:** none


### Duct Calculator

[App page](https://appshunter.io/ios/app/duct-calculator-hvac-sizing/id6789039757)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ductulator Pro | $9.99 | per year |


## Frequently asked questions

### Is TaskFlow free?

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

### Is Duct Calculator free?

Duct Calculator is free to download, with in-app purchases available.

### Do TaskFlow or Duct Calculator have ads?

Neither TaskFlow nor Duct Calculator shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*