# NoteCrypt Encrypted Notes vs Proton Calendar

The clearest difference is review sentiment: NoteCrypt Encrypted Notes at 88% against Proton Calendar's 41%. NoteCrypt Encrypted Notes also leads on rating (4.8 vs 4.1) and in-app purchases (none vs 2). Proton Calendar's advantage is price (Free vs $2.99) and update cadence (every 5 weeks vs every 38 months). On ads, device support and iOS requirement there is nothing between them.

Proton Calendar is free to download; NoteCrypt Encrypted Notes costs $2.99 up front. Proton Calendar sells 2 one-off in-app purchases. NoteCrypt Encrypted Notes asks for nothing beyond the download.

NoteCrypt Encrypted Notes holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: Proton Calendar has 1.6K ratings behind it against 59, so its average is the more settled of the two. Written reviews point the same way: 88% of NoteCrypt Encrypted Notes's written reviews are positive against 41% of Proton Calendar's.

NoteCrypt Encrypted Notes ships an update every 38 months, Proton Calendar every 5 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | NoteCrypt Encrypted Notes | Proton Calendar |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.8 (59 ratings)](https://appshunter.io/ios/app/notecrypt-encrypted-notes/id897154139/reviews)** | [4.1 (1.6K ratings)](https://appshunter.io/ios/app/proton-calendar-secure-events/id1514709943/reviews) |
| Number of ratings | 59 | **1.6K** |
| Positive reviews | **87.5% of reviews** | 40.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#88** | — |
| Size | 1 MB | 185 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [App Nursery](https://appshunter.io/developer/1872320324) | [Proton AG](https://appshunter.io/developer/979659484) |

## What reviewers say

### NoteCrypt Encrypted Notes

[App page](https://appshunter.io/ios/app/notecrypt-encrypted-notes/id897154139)

**Currently charting:** #88 Top Paid · Productivity (US App Store)

Secure your sensitive information with robust 256-bit AES encryption. This app prioritizes privacy with zero-knowledge, offline-only storage and no cloud integration or analytics. It offers a simple, secure way to keep your notes protected from unauthorized access.

**Highlights:** 256-bit AES encryption, Zero-knowledge security, Offline-only storage, Password strength indicator, Dark themed UI, No cloud integration

**In-app purchases:** none


### Proton Calendar

[App page](https://appshunter.io/ios/app/proton-calendar-secure-events/id1514709943)

This app helps you manage your schedule with privacy in mind. It offers various viewing options, reminders, and recurring event creation. All your data is protected by end-to-end encryption and strict Swiss privacy laws, ensuring your personal information is not tracked or harvested.

**Highlights:** Agenda and day view, View and reply to invites, Automatic event addition from email, Light and dark mode, Multiple reminders, Recurring events, Cross-device sync

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mail Plus (1 year) | $59.99 | one-time |
| Proton Unlimited | $149.99 | one-time |

**What reviewers like**

- 🚀 Intuitive interface
- 🔒 Secure and private
- 👍 Good integration with Proton suite
- 👍 Visually appealing design

**What reviewers complain about**

- 🐛 Slow performance and crashes
- 🔍 Lacking search functionality
- 📅 Missing advanced calendar views (week, month)
- 🔗 Limited integration with other calendars

**Reported bugs**

- Issues with time zone settings
- Notifications not working reliably
- Inability to edit shared events

**Requested features**

- Widgets for quick access
- Ability to invite and share calendars with others
- Support for importing/exporting calendar data
- Customization options (colors, alerts, etc.)
- iPad-optimized version


## Frequently asked questions

### Is NoteCrypt Encrypted Notes free?

NoteCrypt Encrypted Notes costs $2.99, with no in-app purchases.

### Is Proton Calendar free?

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

### Which has better reviews, NoteCrypt Encrypted Notes or Proton Calendar?

NoteCrypt Encrypted Notes is rated higher. NoteCrypt Encrypted Notes averages 4.8 out of 5 from 59 ratings, while Proton Calendar averages 4.1 from 1.6K ratings.

### Do NoteCrypt Encrypted Notes or Proton Calendar have ads?

Neither NoteCrypt Encrypted Notes nor Proton Calendar shows ads.

### Which is updated more often, NoteCrypt Encrypted Notes or Proton Calendar?

NoteCrypt Encrypted Notes ships an update every 38 months, and Proton Calendar every 5 weeks. Most recently, NoteCrypt Encrypted Notes was updated on October 29, 2026 and Proton Calendar on October 30, 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.*