# Caleido (formerly Event Book) vs Penso Notes

The clearest difference is in-app purchases: Caleido (formerly Event Book) at none against Penso Notes's 3. Caleido (formerly Event Book) also leads on iOS requirement (7.0 vs 17.0). Penso Notes's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Penso Notes sells 3 in-app purchases, starting at $3.99 per month. Caleido (formerly Event Book) asks for nothing beyond the download.

Caleido (formerly Event Book) ships an update every 2 months, Penso Notes every 3 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Caleido (formerly Event Book) | Penso Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (5 ratings)](https://appshunter.io/ios/app/caleido-formerly-event-book/id599232745/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 73.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 13 MB | 161 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Abhinay Ashutosh](https://appshunter.io/developer/599232748) | [Suchitra Enterprise](https://appshunter.io/developer/1827772637) |

## What reviewers say

### Caleido (formerly Event Book)

[App page](https://appshunter.io/ios/app/caleido-formerly-event-book/id599232745)

This app offers a streamlined approach to managing your schedule and to-dos. It features a customizable interface with integrated map and weather information for efficient planning. Syncs with existing calendars and provides multiple view options for events and tasks.

**Highlights:** Calendar and task management, Customizable interface, Map and weather integration, Syncs with existing calendars, Multiple view options (day, week, month, list, location, task), Event and task management

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Clean, intuitive, and minimalist interface
- 📅 Multiple view options (day, week, month)
- ⚡ Fast and responsive performance
- 🎨 Beautiful design with customizable themes
- 🔗 Seamless integration with iOS calendar

**What reviewers complain about**

- 🐛 Frequent crashes and stability issues
- 🐛 Weather widget not working properly
- 🐛 Location/map integration failures
- 🐛 Alarm/notification system unreliable
- ❌ No push notifications for reminders

**Reported bugs**

- App crashes when setting alarms or editing events
- Weather widget fails to load or display
- Location services cause repeated permission requests
- Month view displays events one day before actual date
- Week view shows incorrect day labels (Sunday appears twice)

**Requested features**

- Push notifications for events and reminders
- Color coding for different calendars
- Search functionality for events
- Facebook birthday integration
- Natural language event input


### Penso Notes

[App page](https://appshunter.io/ios/app/penso-notes/id6748872837)

**Features:** iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Penso Pro Monthly | $3.99 | per month |
| Penso Pro Yearly | $39.99 | per year |
| Penso Pro Extended | $79.99 | one-time |


## Frequently asked questions

### Is Caleido (formerly Event Book) free?

Caleido (formerly Event Book) is free to download, with no in-app purchases.

### Is Penso Notes free?

Penso Notes is free to download, with in-app purchases available.

### Do Caleido (formerly Event Book) or Penso Notes have ads?

Neither Caleido (formerly Event Book) nor Penso Notes shows ads.

### Which is updated more often, Caleido (formerly Event Book) or Penso Notes?

Caleido (formerly Event Book) ships an update every 2 months, and Penso Notes every 3 weeks. Most recently, Caleido (formerly Event Book) was updated on November 6, 2026 and Penso Notes on November 5, 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.*