# DuoTask Spark vs Hark Pro

The clearest difference is in-app purchases: DuoTask Spark at none against Hark Pro's 3. Hark Pro's advantage is update cadence (every 2 days vs weekly) and chart position (#67 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Hark Pro sells 3 in-app purchases, starting at $20.00 per month. DuoTask Spark asks for nothing beyond the download.

DuoTask Spark ships an update weekly, Hark Pro every 2 days. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | DuoTask Spark | Hark Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (182 ratings)](https://appshunter.io/ios/app/hark-pro/id6772362941/reviews)** |
| Number of ratings | — | **182** |
| Positive reviews | — | 94.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#67** |
| Size | 21 MB | 99 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Aislan Lander](https://appshunter.io/developer/1260013157) | [Hark Labs Inc.](https://appshunter.io/developer/1885814606) |

## What reviewers say

### DuoTask Spark

[App page](https://appshunter.io/ios/app/duotask-spark/id6757406832)

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

**In-app purchases:** none


### Hark Pro

[App page](https://appshunter.io/ios/app/hark-pro/id6772362941)

**Currently charting:** #67 Top Free · Lifestyle (US App Store)

This app acts as a personal operating system, proactively managing tasks across the web and your life. It can handle reservations, orders, scheduling, and project management by integrating with various services and websites.

**Highlights:** Proactive task management, Web service integration, Automated reservations and orders, Schedule and calendar management, Project tracking, Customizable mini-apps (Panels), Secure login management

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hark Pro² | $20.00 | per month |
| Hark Pro³ | $100.00 | per month |
| Hark Pro⁴ | $200.00 | per month |


## Frequently asked questions

### Is DuoTask Spark free?

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

### Is Hark Pro free?

Hark Pro is free to download, with in-app purchases available.

### Do DuoTask Spark or Hark Pro have ads?

Neither DuoTask Spark nor Hark Pro shows ads.

### Which is updated more often, DuoTask Spark or Hark Pro?

DuoTask Spark ships an update weekly, and Hark Pro every 2 days. Most recently, DuoTask Spark was updated on October 19, 2026 and Hark Pro on October 17, 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.*