Calendar vs DueAgain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calendar
This app combines six essential productivity tools into one convenient package. Organize your schedule with a robust calendar, manage tasks with a to-do list, jot down ideas in notes, track finances with a budget tool, secure your information with a password manager, and convert currencies on the go. Customize your interface for maximum efficiency.
- Integrated Calendar with iCloud/Google sync
- To-Do List with subtasks and task-to-event conversion
- Notes with voice input and drawing
- Financial Tracker with budget categories and diagrams
- Secure Password Manager
- Real-time Currency Converter
- Customizable interface and navigation
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Calendar at the center. Everything else within reach. HUB is a calendar that keeps your day under control without unnecessary complexity. Tasks, notes, and other tools are built in, but the interface stays clear and focused. Use what you need. Nothing gets in the way. Fast, clear planning • Create events in seconds • Day, week, month, and year views in one place • Easily adjust time and duration with drag and drop • Clear visual overview of your schedule • Works online and offline • Full sync with iCloud, Google, Outlook, Office365, and other calendars Flexibility that goes further • Customizable bottom navigation so you keep only the features you use • Two weekly layouts: classic and agenda-style • Flexible multi-day view (2 to 14 days) and three month view formats for maximum convenience • Widgets, themes, and interface personalization • A clean structure without overload Everything else inside When you need it. • Tasks for simple lists and better structure • Notes in list or board view • Budget tracking for expenses and accounts • Password Manager for secure storage • Currency Converter for quick calculations Free features • Core calendar features • Sync with Reminders • Widgets and interface customization • Recurring events and tasks • Adjustable week formats • Backup Available without limits: • Unlimited notes With limits: • Up to 3 budget accounts • Up to 7 items in Password Manager • Up to 2 currencies at the same time PRO features • Voice input for events, tasks, and notes • File attachments • Conversion between events, tasks, and notes • Forwarding and copying • Unlimited data and accounts • App lock and extra advanced features Built for everyday use HUB helps you bring order to tasks, events, and plans — without complicated setup or extra steps. Support hub@plantech.app Terms of Use https://calenhub.com/Terms_and_Conditions_HUB/Terms_and_Conditions_RUS.htm
DueAgain
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Some things belong on a fixed calendar. Others should happen a certain amount of time after you actually do them. DueAgain handles both. See what needs attention, what is coming up, and exactly how long it has been since the last time—all in one calm dashboard. FLEXIBLE SCHEDULES Choose “after completion” for jobs like changing an air filter, or keep a fixed weekly or monthly rhythm for jobs like putting out bins. Completing something late does not have to ruin the schedule. ONE-TAP HISTORY Mark an item complete from the dashboard and undo mistakes instantly. Every completion is kept in a simple private history. WIDGETS THAT HELP Keep upcoming and overdue items visible on your Home Screen or Lock Screen. Complete an item right from an interactive widget on supported iOS versions. PRIVATE BY DESIGN No account. No ads. No analytics. No tracking. No backend server. Your home-care data stays on your iPhone. FREE TO START Track up to five active items for free. Unlock unlimited items, every widget, and the full style collection with one $4.99 lifetime purchase. No subscription—ever. DueAgain is useful for cleaning, home maintenance, car care, pet care, appliance filters, plants, personal routines, and all the little jobs that are easy to forget.
Screenshots
Verdict
The clearest difference is device support: Calendar at 3 against DueAgain's 1. Calendar also leads on iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases 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. Calendar sells 3 in-app purchases, starting at $3.99 per month and DueAgain sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Calendar | DueAgain |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (402 ratings) — better | — |
| Positive reviews | 70.4% of reviews | — |
| Number of ratings | 402 — better | — |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 291 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Planning Technologies LLC | Jesse Lessing |
In-app purchases
Calendar
- Full Access for a Month$3.991 Month
- Full Access for a Year7 Days trial$29.991 Year
- Full Access Forever$49.99
DueAgain
- DueAgain Pro Lifetime$4.99









