# One Calendar vs Bigger Notes

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.

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.

## The numbers

| Metric | One Calendar | Bigger Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (21K ratings)](https://appshunter.io/ios/app/one-calendar/id1238379385/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/bigger-notes/id1332341756/reviews)** |
| Number of ratings | **21K** | 7 |
| Positive reviews | 80.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 91 MB | 2 MB |
| Requires iOS | **15.0** | 16.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Code Spark](https://appshunter.io/developer/1238379384) | [Jeff Fredrickson](https://appshunter.io/developer/1332341755) |

## What reviewers say

### One Calendar

[App page](https://appshunter.io/ios/app/one-calendar/id1238379385)

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.

**Highlights:** Integrates multiple calendar providers, Unified calendar view, Manage appointments and events, Syncs across devices, Customizable colors and themes, Easy to use interface

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OneCalendar premium | $5.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Clean and simple interface
- 👍 Integrates multiple calendars
- 🚀 Syncs across devices
- 👍 Customizable colors and themes

**What reviewers complain about**

- 🐛 Syncing issues
- 🐛 Bugs and glitches
- 🔒 Lacks security features
- 🔋 Drains battery
- 👎 Restrictive features in free version

**Reported bugs**

- Sync errors
- Unresponsive buttons
- Incorrect time zone display
- Duplicate events
- Inability to delete future occurrences of recurring events

**Requested features**

- Multiple reminders for events
- Ability to edit recurring events
- Option to change event calendar after creation
- Printing support
- More customization options


### Bigger Notes

[App page](https://appshunter.io/ios/app/bigger-notes/id1332341756)

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.

**Highlights:** Fast note creation, Customizable interface, Easy to use, Facilitates Deaf and hearing communication, Simple note management

**In-app purchases:** none


## Frequently asked questions

### Is One Calendar free?

One Calendar is free to download, with in-app purchases available.

### Is Bigger Notes free?

Bigger Notes is free to download, with no in-app purchases.

### Which has better reviews, One Calendar or Bigger Notes?

Bigger Notes is rated higher. One Calendar averages 4.8 out of 5 from 21K ratings, while Bigger Notes averages 5.0 from 7 ratings.

### Do One Calendar or Bigger Notes have ads?

Neither One Calendar nor Bigger Notes shows ads.

### Which is updated more often, One Calendar or Bigger Notes?

One Calendar ships an update every 3 weeks, and Bigger Notes every 10 days. Most recently, One Calendar was updated on November 3, 2026 and Bigger Notes on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*