Comparison

Task Calendar vs Project Gantt Chart & Timeline

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

Head to head
About

Task Calendar

Organize your life by writing and editing tasks directly on a monthly calendar. View all your commitments at a glance, with unlimited tabs, sorting, and customizable themes. Keep your data secure with offline support and biometric authentication.

Highlights
  • Task management on a monthly calendar
  • Unlimited tabs for categories
  • Task sorting and reordering
  • Tasks without specific dates
  • Notifications for reminders
  • Dark mode and custom background colors
  • Biometric authentication for security
Features
Read full description

Task Calendar is a task management app that lets you write down and edit tasks right on your calendar. It's packed with features such as task management on a monthly calendar, unlimited tabs, sorting, tasks without a date, notifications, dark mode support, and more. ■ Manage Tasks on a Monthly Calendar Write tasks directly onto a monthly calendar, so you can see everything you need to do each month at a glance. ■ Unlimited Calendar Scrolling Scroll vertically to instantly jump to any month, past or future. No need for annoying buttons to move between months! ■ View All Calendars at Once Combine every tab's calendar into a single, unified view. No more switching back and forth between tabs! ■ Sorting Freely reorder tasks by dragging, or sort them alphabetically and more. ■ Unlimited Tabs Create as many calendars as you like for categories such as "Work," "Study," and "Personal." There's no limit! ■ Powerful Search Instantly find the task you need by filtering all your tasks by date range or keyword. ■ Tasks Without a Date Create tasks that aren't tied to a specific date. Perfect for tasks whose date hasn't been decided yet! ■ Notifications Send yourself notifications at any time with any message you like, so you never forget a task. ■ Dark Mode Choose your theme from Light Mode, Dark Mode, or automatic switching based on your device settings. ■ Custom Background Colors Change the background color of each tab to any color you like. ■ Archive Hide any calendars you don't want to see. ■ Biometric Authentication Supports Face ID and Touch ID, keeping your important records safely protected. ■ Security Your data is stored only on your device and is never sent to any third party. ■ No Login Required Start using the app right away without any login. ■ Offline Support Works even when you're not connected to the internet. ■ Privacy Policy naokiotsu.com/privacy-policy ■ Contact If you have any requests or questions, feel free to reach out through the in-app contact form or the email address below. info@naokiotsu.com

About

Project Gantt Chart & Timeline

Visualize project timelines with dependent tasks and automatic rescheduling. Track progress, set reminders, and sync across devices. Ideal for managing complex projects from renovations to client work.

Highlights
  • Dependent task linking
  • Automatic rescheduling
  • Progress tracking
  • Subtask creation
  • Customizable work calendar
  • Calendar sync
  • Export options
Features
Read full description

The tile delivery slips by a week. Now the electrician can't start, your painter has taken another job, and a project you built around one long weekend has quietly moved into next month. A checklist never warns you about that. A timeline does. gantt puts the whole project on one chart and connects the tasks that actually depend on each other. Move one bar and everything downstream moves with it, including the steps you had forgotten were downstream. WHAT PEOPLE PLAN HERE A kitchen renovation with three trades, each waiting on the last one to finish. A thesis with a defense date nobody is moving. A wedding, a relocation, a trip stacked on non-refundable bookings. Client work you have run before and will run again next quarter. HOW IT WORKS Zoom the timeline from minutes to months, whatever the project needs. Link the dependent tasks and set the gap between them: two days for paint to cure, a week for a delivery. Switch on the working calendar and the plan stops counting weekends, your days off, and public holidays in your country. Split the big items into subtasks, tag them, add reminders, and fill in progress as you go. Then something changes, because something always changes. You drag one date and read the new finish date straight off the chart. FREE The timeline, tasks, subtasks, progress, tags, filters, reminders, Apple Calendar sync, the Apple Watch app, export as an image and sending a plan as a link. No ads, no trial countdown. WITH PRO Task dependencies and automatic rescheduling, a workweek you define, public holidays by country, export to PDF or a spreadsheet, and a Home Screen widget. NO ACCOUNT There is no sign-up screen because there is nothing to sign into. Projects sync across your devices through your iCloud. When someone else needs the plan, send it as a link in Messages: they open it without installing anything. Monthly Pro includes a free first month for eligible new subscribers and renews until you cancel. Lifetime Pro is a single payment. Terms of Use: https://pamobilegames.com/terms Privacy Policy: https://pamobilegames.com/terms

Screenshots

Task Calendar4 screens
Project Gantt Chart & Timeline4 screens

Verdict

The call

The clearest difference is in-app purchases: Task Calendar at none against Project Gantt Chart & Timeline's 2. Task Calendar also leads on update cadence (every 8 days vs monthly) and iOS requirement (15.1 vs 18.0). 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. Project Gantt Chart & Timeline sells 2 in-app purchases, starting at $1.99 per month. Task Calendar asks for nothing beyond the download.

UpkeepUpdate frequency

Task Calendar ships an update every 8 days, Project Gantt Chart & Timeline monthly. The most recent releases landed on November 10, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
Task Calendar versus Project Gantt Chart & Timeline: the parameters behind the verdict, then further details
ParameterTask CalendarProject Gantt Chart & Timeline
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 8 days — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.1 — better18.0
Further details — not scored
Size44 MB26 MB
Age rating4+4+
Developernaoki otsuArtem Tischenko

Customer experience

Task Calendar

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Project Gantt Chart & Timeline

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

In-app purchases

None

Task Calendar

No in-app purchases

2 purchases

Project Gantt Chart & Timeline

Subscriptions1
  • Monthly1 Month trial$1.991 Month
One-time1
  • Lifetime$12.99

Questions

Is Task Calendar free?
Task Calendar is free to download, with no in-app purchases.
Is Project Gantt Chart & Timeline free?
Project Gantt Chart & Timeline is free to download, with in-app purchases available.
Do Task Calendar or Project Gantt Chart & Timeline have ads?
Neither Task Calendar nor Project Gantt Chart & Timeline shows ads.
Which is updated more often, Task Calendar or Project Gantt Chart & Timeline?
Task Calendar ships an update every 8 days, and Project Gantt Chart & Timeline monthly. Most recently, Task Calendar was updated on November 10, 2026 and Project Gantt Chart & Timeline on November 2, 2026.

Other comparisons