---
title: "Calendar 366: Events & Tasks — App Overview"
url: https://marlvel.ai/apps/com-nspektor-ios-calendar-366
category: Productivity
developer: Vincent Miethe
platforms: ios
rating: 4.6 (543 ratings)
pricing: paid
report_level: overview
generated: 2026-04-18
last_verified: "2026-04-23T08:04:54.790Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** Calendar 366 is a feature-rich, one-time purchase calendar app that serves as a privacy-focused, subscription-free alternative to mainstream productivity tools.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Productivity |
| Rating | 4.6 ★ (543) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 2.11.2 |
| Developer | Vincent Miethe |

<!-- SECTION: Summary -->
## What is Calendar 366: Events & Tasks?

Calendar 366 is a productivity tool designed to manage appointments, tasks, and deadlines with high levels of customization. It distinguishes itself by offering a one-time purchase model without subscriptions, appealing to users who prioritize privacy and a clutter-free interface.

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

- **Natural Text Input**: Allows users to create events and tasks using conversational language like 'Meeting tomorrow 10am'.
- **Individual Display Customization**: Provides flexible viewing options including year, month, week, day, and list views with adjustable color themes.
- **Cross-Platform Integration**: Supports synchronization of appointments and to-dos across iPhone and Mac devices.
- **Privacy-Focused Design**: Operates without data collection or the requirement for an external account.

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

Power users and privacy-conscious individuals seeking a highly customizable alternative to native calendar applications.

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

- [App Store](https://apps.apple.com/us/app/calendar-366-events-tasks/id1265892516?uo=2)
- [Full Intelligence Report](https://marlvel.ai/apps/com-nspektor-ios-calendar-366)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/com-nspektor-ios-calendar-366).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*