One Big Thing vs Calendar Widget !
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
One Big Thing
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A Todo app with ONE big difference. Set an intention for your day with one big thing. Review your previous Big Things. Receive notifications to remind you to check in on your big thing, and mark it as complete if you've done it.
Calendar Widget !
Display upcoming events and reminders directly on your Home Screen. This clean and simple widget offers a clear timeline view of your schedule, allowing you to check appointments at a glance without opening your main calendar app.
- Home screen event display
- Clear event timeline
- Customizable display modes
- Adjustable font size and colors
- Show reminders
- Integrates with preferred calendar app
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Calendar Widget - CalWid Your events right on the Home Screen. CalWid is a clean and simple calendar widget for your iPhone. Keep track of your upcoming events at any time – without opening the calendar app. The widget displays your upcoming events in a clearly structured timeline with date, time and color indicators. Perfect for anyone who wants to quickly check their schedule at a glance. ------------------------------- Features A clear list of upcoming events shows your next appointments directly in a widget on your Home Screen. You can choose your preferred calendar app so tapping the widget opens your own calendar directly. With different display modes you can choose between several styles: • Event color • Color bar • Colored background Customizable design • Adjustable font size • Optional bold text • Custom colors for text and background All-day events can also be displayed. You can also choose to show reminders in the widget. ------------------------------- Quick setup 1. Add the widget to your Home Screen 2. Select your calendar in the CalWid app 3. Customize the appearance and colors Done – your events are always visible. ------------------------------- Privacy CalWid only accesses the calendar data stored on your device. No data is modified, stored or transmitted.
Screenshots
Verdict
The clearest difference is in-app purchases: One Big Thing at none against Calendar Widget !'s 1. Calendar Widget !'s advantage is update cadence (every 2 weeks vs every 2 months). 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. Calendar Widget ! sells 1 one-off in-app purchase. One Big Thing asks for nothing beyond the download.
One Big Thing ships an update every 2 months, Calendar Widget ! every 2 weeks. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.
| Parameter | One Big Thing | Calendar Widget ! |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 1 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Chatting | Michael Schatto |
In-app purchases
One Big Thing
No in-app purchases
Calendar Widget !
- CalWid – Calendar Widget$2.99
Questions
Is One Big Thing free?
Is Calendar Widget ! free?
Do One Big Thing or Calendar Widget ! have ads?
Which is updated more often, One Big Thing or Calendar Widget !?
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