One Calendar vs Bigger Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
One Calendar
Consolidate all your calendars from various providers into a single, easy-to-read view. Manage appointments, events, and birthdays efficiently across all your devices. Offers a clean interface for seamless organization.
- Integrates multiple calendar providers
- Unified calendar view
- Manage appointments and events
- Syncs across devices
- Customizable colors and themes
- Easy to use interface
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The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Yahoo, Nextcloud, Synology, GMX, Mailbox.org, ownCloud and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your appointments, events and birthdays. OneCalendar is available on all platforms.
Bigger Notes
This app offers a straightforward way to create and manage notes, prioritizing speed and customization. It's specifically designed to bridge communication gaps between individuals who are Deaf and those who can hear.
- Fast note creation
- Customizable interface
- Easy to use
- Facilitates Deaf and hearing communication
- Simple note management
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An easy-to-use note-writing app, designed to help facilitate communication between Deaf and hearing people. It's fast, customizable, and easy to use!
Screenshots
Verdict
The clearest difference is in-app purchases: Bigger Notes at none against One Calendar's 1. Bigger Notes also leads on review sentiment (100% vs 81%) and rating (5.0 vs 4.8). One Calendar's advantage is ratings volume (21K vs 7) and device support (4 vs 2). On price, ads 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. One Calendar sells 1 one-off in-app purchase. Bigger Notes asks for nothing beyond the download.
Bigger Notes holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: One Calendar has 21K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 81% of One Calendar's written reviews are positive against 100% of Bigger Notes's.
One Calendar ships an update every 3 weeks, Bigger Notes every 10 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.
| Parameter | One Calendar | Bigger Notes |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (21K ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 80.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 21K — better | 7 |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 91 MB | 2 MB |
| Age rating | 12+ | 4+ |
| Developer | Code Spark | Jeff Fredrickson |
Customer experience
One Calendar
Bigger Notes
Bugs and requests
One Calendar
Reported bugs
5 issues- Sync errors
- Unresponsive buttons
- Incorrect time zone display
- Duplicate events
- Inability to delete future occurrences of recurring events
Requested features
6 requests- Multiple reminders for events
- Ability to edit recurring events
- Option to change event calendar after creation
- Printing support
- More customization options
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- Widgets for better visibility
Bigger Notes
Not enough reviews yet to summarise bugs or requests.
In-app purchases
One Calendar
- OneCalendar premium$5.99
Bigger Notes
No in-app purchases
Questions
Is One Calendar free?
Is Bigger Notes free?
Which has better reviews, One Calendar or Bigger Notes?
Do One Calendar or Bigger Notes have ads?
Which is updated more often, One Calendar or Bigger Notes?
Other comparisons
