DuoTask Spark vs Hark Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DuoTask Spark
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Tasks first. Pleasure next. DuoTask Spark turns everyday tasks into rewards you choose together. Use it with a partner, friends or housemates. A little kink is optional; making the everyday more fun is the point. REWARDS WORTH DOING IT FOR Attach a reward directly to a task: a surprise photo, breakfast in bed, a massage or whatever you agree on. Choose a visible, blurred or hidden photo preview and whether to reveal it on completion. Points are optional. YOUR PEOPLE, ONE SHARED LIST Create tasks, assign them to someone or leave them open, and set a recurring schedule. The calendar and activity feed keep everyone in the loop. Invite your people with a link or an 8-character code. PICK YOUR PLEASURE Prefer saving up for something bigger? Add points and create your own reward collection. Completion celebrations, streaks and a leaderboard bring a little friendly competition. PRIVATE BY DESIGN New reward photos encrypt on your device using a private group key that members share separately. Legacy photos are not automatically encrypted. Preview settings control how photos appear; share only what everyone involved agrees to. MADE FOR REAL LIFE Native performance, dark mode, reminders, and sign-in with Apple, Google or email. Account deletion is available in Settings. Optional usage sharing is off until you choose to enable it.
Hark Pro
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.
- Proactive task management
- Web service integration
- Automated reservations and orders
- Schedule and calendar management
- Project tracking
- Customizable mini-apps (Panels)
- Secure login management
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Hark Pro is an operating system for your life, built to think ahead, and help you with real, practical things. By combining advanced memory and the ability to use a computer in the cloud, Hark understands the context of your life and can take care of things across the web. No agents or subscriptions required. Hark can log in to OpenTable and make a reservation for you. But it’s also smart enough to reference your calendar for an open time, recall your favorite spots for openings, note your friend’s food allergies in the reservation, and even create a button to reserve an Uber to get there that night. Use Hark to order groceries. Return products. Manage your schedule. Build mini apps. And track complicated projects, integrating Google Docs and Slack messages, mindlessly. Hark is a simple chat app with powerful capabilities - freeing your time to spend away from screens. Proactive thinking Hark looks ahead. Book a movie on Hark, and Hark won’t just buy the ticket and add it to your calendar. It’ll scope the parking situation ahead of time, and offer to reserve you a spot before they fill up. Hark thinks creatively to remove friction across your life. Use the web with Handoff Just type “deliver me pizza” to hand off the task to Hark. It will hunt for the best local pizzarias, go on their websites, read their menus, and order you one for delivery via DoorDash (with your consent and favorite toppings, of course). Hark securely manages your logins to hundreds of sites including Target, Amazon, and LinkedIn so it can handle tasks from start to finish. Hark can also fill out web forms for you, writing multiple services to get quotes on a move or renovation. It can dig through webpages to find dentists who actually take your insurance - and email them for you to ask if it's unclear. It can plan your new wardrobe, then present it on a custom website built just for you. Manage your personal and professional life With Email and Slack integration, Hark can keep track of your most important messages, build your daily schedule, balance your calendar, and summarize dozens of discussions across your workplace into just the things that you need to know. Follow long term tasks with Projects Hark can manage your life in one, long-running chat. But sometimes you want to start with a blank slate. Projects are dedicated threads for longer term work. They focus a single topic, and related files, in one place that you can visit again and again over time. Build your own Panels Never learn to code. Hark can generate tiny bits of software called Panels - ranging from exercise trackers to media players - that live right inside the Hark app. All you do is prompt. You can even ask your Panels questions to dig deeper into their data, unlocking even more from services you already use like Strava, Spotify, and Venmo. Solve it with a button press Notifications give you work. Hark’s Action Buttons provide solutions. Hark’s one-line summaries highlight the most important things you need to do next. Just press a button to “pay” a bill, “RSVP” to an event, or “review” an insurance claim. Do everything else you expect an assistant to do Researching questions. Analyzing PDFs. Yes, even telling you the weather. Hark offers all of the same baseline services offered by other leading AI labs, too. Security and privacy Your data is your own. Hark will never sell your data or serve you ads. We also never see your most private information, like stored passwords or credit card numbers, which are always encrypted in storage and in transit. Hark does real work • Order dinner and groceries • Book cheap flights and hotels • Spot subscriptions before they renew • Schedule automatic tasks • Build websites, spreadsheets, and slide decks Terms of Service: https://www.hark.com/terms Privacy Policy: https://www.hark.com/privacy-policy © 2026 Hark
Screenshots
Verdict
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 (#57 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | DuoTask Spark | Hark Pro |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (182 ratings) — better |
| Positive reviews | — | 94.4% of reviews |
| Number of ratings | — | 182 — better |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | #57 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 21 MB | 99 MB |
| Age rating | 12+ | 17+ |
| Developer | Aislan Lander | Hark Labs Inc. |
In-app purchases
DuoTask Spark
No in-app purchases
Hark Pro
- Hark Pro²$20.001 Month
- Hark Pro³$100.001 Month
- Hark Pro⁴$200.001 Month









