Comparison

Hark Pro vs stax

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Hark Pro

This app acts as a life operating system, proactively managing tasks across the web. It can handle reservations, orders, scheduling, and project management by integrating with various online services and your personal data. Build custom mini-apps within the platform to streamline your digital life.

Highlights
  • Proactive task management
  • Web service integration
  • Automated reservations and ordering
  • Schedule and calendar management
  • Project tracking
  • Customizable mini-apps (Panels)
  • Secure login management
Features
Currently charting
Read full description

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

About

stax

Organize your discoveries into a personal library. Save links, photos, and notes from anywhere, then find them easily with smart search and custom decks. Keep track of places and experiences with ratings.

Highlights
  • Save from any app
  • Organize into custom decks
  • Smart search by name, place, category
  • Visual library of cards
  • Rate experiences (Yes, Meh, No)
  • Cross-device availability
  • Private library
Features
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stax turns the things you discover into a personal library you can actually find again. Save a restaurant from a public post, a hotel from a webpage, a screenshot from Photos, or a note to yourself. stax creates a Card with the source, useful details, and location context- then organizes related Cards into Decks. SAVE FROM ANYWHERE • Share public links, photos, and screenshots to stax from other apps • Paste a link or add context inside stax • Keep the original source connected to every Card FIND IT THE WAY YOU REMEMBER IT • Search names, places, categories, creators, and details • Use natural phrases such as “date night” or “places in Tokyo” • Return to the reason you saved something LET YOUR LIBRARY ORGANIZE ITSELF • Browse a quiet, visual library of Cards • Group ideas into custom Decks • Discover automatic Decks by trip, place, vibe, or category • Mark experiences Been and add a quick Yes, Meh, or No rating Your stax library is private to your account and available across devices. stax does not sell your data or use it for advertising.

Screenshots

Hark Pro4 screens
stax4 screens

Verdict

The call

The clearest difference is in-app purchases: stax at none against Hark Pro's 3. stax also leads on rating (5.0 vs 4.7). Hark Pro's advantage is ratings volume (2.6K vs 2) and chart position (#159 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Hark Pro sells 3 in-app purchases, starting at $26.00 per month. stax asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

stax holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Hark Pro has 2.6K ratings behind it against 2, so its average is the more settled of the two.

Scorecard5 real differences · 6 level
Hark Pro versus stax: the parameters behind the verdict, then further details
ParameterHark Prostax
PriceFreeFree
Rating4.7 (2.6K ratings)5.0 (2 ratings) — better
Positive reviews90.1% of reviews—
Number of ratings2.6K — better2
Update frequencyEvery 3 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#159 — better—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size107 MB62 MB
Age rating17+4+
DeveloperHark Labs Inc.Sovanza WooFur

Customer experience

Hark Pro

All ratings2,597 ratings
Positive92.7%
Neutral0.9%
Negative6.4%
Written reviews172 reviews
Positive90.1%
Neutral0.6%
Negative9.3%

stax

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Hark Pro

Subscriptions3
  • Hark Pro²$26.001 Month
  • Hark Pro³$129.991 Month
  • Hark Pro⁴$259.991 Month
None

stax

No in-app purchases

Questions

Is Hark Pro free?
Hark Pro is free to download, with in-app purchases available.
Is stax free?
stax is free to download, with no in-app purchases.
Which has better reviews, Hark Pro or stax?
stax is rated higher. Hark Pro averages 4.7 out of 5 from 2.6K ratings, while stax averages 5.0 from 2 ratings.
Do Hark Pro or stax have ads?
Neither Hark Pro nor stax shows ads.

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