Comparison

Zenkit To Do vs Doubtful

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

Head to head
About

Zenkit To Do

This app helps you manage tasks and organize lists for personal or collaborative use. It allows you to add various file types to tasks, set reminders, and sync across devices for offline access. Collaborate with others by sharing lists and assigning tasks.

Highlights
  • Create and organize any type of list
  • Attach files and documents to tasks
  • Set reminders for important dates
  • Share lists and folders with others
  • Assign tasks and comment on them
  • Offline access and cross-device synchronization
  • Two-factor authentication for security
Features
Read full description

Zenkit To Do is a super-simple task management app to help you work productively and collaborate with anyone. It lets you organize your tasks, shopping lists, meetings, events, trips, ideas, notes, places, and whatever else is important to you. You can create lists and share tasks with your team members, family, and friends. To Do synchronizes everything between all your devices so you can access your lists wherever you are, even offline. ---------- Zenkit To Do is part of the Zenkit product family. Zenkit has won several awards and is celebrated in Lifehacker, TechCrunch, CNET, and The Next Web, to name but a few. ---------- Organize • Create any lists you need and use them on your phone, tablet, and computer simultaneously. • Add images, PDFs, presentations, photos, links, and other documents to your tasks. • Set reminders so you never miss an important date. • Use folders to help you organize your lists. Collaboration • Share lists with team members, friends, and family. • Or share whole folders to make sure everyone has the lists they need. • Comment on tasks to keep your chats in context. • @mention other users to contact them directly. • Assign tasks so everyone knows what they need to do. • See everything you need to work on in the “Assigned to Me” list. Use Anywhere, Safely • All content is automatically synchronized across all of your devices. • All content is available offline, so you can continue working without the internet. • Your content belongs to YOU. • Data privacy and protection is central to us. • 2FA login protects your account. • Our servers are located in Germany. The Zenkit Universe • To Do works seamlessly with the original Zenkit app and other Zenkit products. This means you can also access your tasks on a Kanban board, Gantt chart, or with a mind map. Stay tuned! • Additional custom fields and references to other objects such as customers etc. are possible through the Zenkit app. Our privacy policy: https://zenkit.com/privacy/ Our terms of use: https://zenkit.com/terms/ For more information, go to https://zenkit.com/todo/

About

Doubtful

This app helps you manage your workload by focusing on a limited number of tasks at a time. It allows you to capture, organize, and break down tasks into manageable steps, with features for progress tracking and task prioritization.

Highlights
  • Task capture and organization
  • Break down tasks into steps
  • Progress tracking
  • Task prioritization
  • Task templates for routines
  • Daily achievement badges
  • iCloud task sync
Features
Read full description

When there is a lot to do, even starting one thing can feel difficult. Doubtful helps you choose what to work on now and give everything else a place to wait. Solving holds no more than three tasks. That limit is intentional: fewer things in front of you, more room for the next step. Your tasks. Your pace. • Get it out of your head. Add tasks one at a time or as a list. Capture thoughts and to-dos in Uncontrolled, move them to Postponing, or bring them into Solving when you are ready. • Start small. Break tasks into steps, check them off, and see your progress. Finish the required steps to complete a task; optional steps can wait. • Choose what matters. Consider a task's importance and the consequences of leaving it undone. Doubtful calculates its priority and sorts the tasks on your board. • Keep familiar steps ready. Save everyday routines as templates and add them to your board whenever you need them. Try a weekly reset or a checklist for tidying your home. • Notice what you have done. See today's completed tasks and earn daily achievement badges. Each day starts a fresh count. Tasks completed on previous days move from Resolved to Trash, where you can restore them. • Pick up on another device. Use Doubtful on iPhone and iPad, with task sync through iCloud. Sync is on by default and can be turned off in Settings. It requires an internet connection and the same iCloud account on your devices. Core features work offline, with no separate Doubtful account. Choose a light or dark appearance, use English, Spanish, or Russian, and create or restore backup files. No task reminders. Come back at your own pace, and begin with one small step.

Screenshots

Zenkit To Do4 screens
Doubtful4 screens

Verdict

The call

The clearest difference is rating: Doubtful at 5.0 against Zenkit To Do's 4.1. Doubtful also leads on in-app purchases (none vs 2). Zenkit To Do's advantage is ratings volume (131 vs 1) and iOS requirement (13.0 vs 17.6). On price, ads and device support 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. Zenkit To Do sells 2 in-app purchases, starting at $3.99 per month. Doubtful asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Doubtful holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Zenkit To Do has 131 ratings behind it against 1, so its average is the more settled of the two.

Scorecard5 real differences · 5 level
Zenkit To Do versus Doubtful: the parameters behind the verdict, then further details
ParameterZenkit To DoDoubtful
PriceFreeFree
Rating4.1 (131 ratings)5.0 (1 ratings) — better
Positive reviews65.2% of reviews—
Number of ratings131 — better1
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size39 MB9 MB
Age rating4+4+
DeveloperaxonicAleksei Melnik

Customer experience

Zenkit To Do

All ratings131 ratings
Positive76.3%
Neutral3.8%
Negative19.8%
Written reviews141 reviews
Positive65.2%
Neutral7.1%
Negative27.7%

Doubtful

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Zenkit To Do

Subscriptions2
  • Zenkit To Do Plus$3.991 Month
  • Zenkit To Do Plus$35.991 Year
None

Doubtful

No in-app purchases

Questions

Is Zenkit To Do free?
Zenkit To Do is free to download, with in-app purchases available.
Is Doubtful free?
Doubtful is free to download, with no in-app purchases.
Which has better reviews, Zenkit To Do or Doubtful?
Doubtful is rated higher. Zenkit To Do averages 4.1 out of 5 from 131 ratings, while Doubtful averages 5.0 from 1 ratings.
Do Zenkit To Do or Doubtful have ads?
Neither Zenkit To Do nor Doubtful shows ads.

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