---
title: "One Calendar — App Overview"
url: https://marlvel.ai/apps/one-calendar
category: Productivity
developer: Code Spark
platforms: ios, android
rating: 4.7 (63.6K ratings)
pricing: free
report_level: overview
generated: 2026-04-17
last_verified: "2026-04-17T06:45:16.603Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** One Calendar serves as a comprehensive aggregator for users needing to sync and manage diverse calendar accounts in one location.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Productivity |
| Rating | 4.7 ★ (63.6K) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 6.901.0 |
| Latest Version (Android) | 6.901.0 |
| Developer | Code Spark |

<!-- SECTION: Summary -->
## What is One Calendar?

One Calendar is a cross-platform productivity tool that aggregates multiple calendar services into a single, unified interface. It supports a wide range of providers including Google, Outlook, iCloud, Exchange, and various self-hosted solutions like Nextcloud and Synology. The app is notable for its broad compatibility and focus on providing a centralized view for managing appointments, events, and birthdays.

<!-- SECTION: Key Features -->
## Key Features

- **Multi-Service Integration**: Aggregates calendars from Google, Live, Outlook, iCloud, Exchange, Office365, Yahoo, and more into one view.
- **Self-Hosted Support**: Provides compatibility with Nextcloud, Synology, GMX, Mailbox.org, and ownCloud.
- **Unified Event Management**: Allows users to view and manage appointments, events, and birthdays across all connected accounts.
- **Cross-Platform Availability**: The application is accessible across all major platforms to ensure consistent scheduling access.

<!-- SECTION: Target Audience -->
## Who is it for?

Users who manage multiple personal and professional calendars across different platforms and require a consolidated overview.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/one-calendar/id1238379385?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=biz.codespark.xcalendarapp&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/one-calendar)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/one-calendar).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*