# CrunchIoT vs ToDo Calendar Pro

The clearest difference is in-app purchases: CrunchIoT at none against ToDo Calendar Pro's 1. CrunchIoT also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. ToDo Calendar Pro sells 1 one-off in-app purchase. CrunchIoT asks for nothing beyond the download.

CrunchIoT ships an update every 3 months, ToDo Calendar Pro every 2 months. The most recent releases landed on October 20, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | CrunchIoT | ToDo Calendar Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/todo-calendar-pro/id1485076112/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 65 MB | 33 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Chipster Technologies Private Limited](https://appshunter.io/developer/1362527386) | [NAOAKI SEKIGUCHI](https://appshunter.io/developer/1146328819) |

## What reviewers say

### CrunchIoT

[App page](https://appshunter.io/ios/app/crunchiot-machine-analytics/id1362527387)

**Features:** macOS Compatibility

**In-app purchases:** none


### ToDo Calendar Pro

[App page](https://appshunter.io/ios/app/todo-calendar-pro/id1485076112)

Manage your tasks efficiently with a calendar view that shows due dates. Sync tasks across all your devices via iCloud and automatically register them to other calendar apps. Attach files, create sub-tasks, and receive timely notifications.

**Highlights:** Calendar task overview, iCloud task synchronization, File and photo attachments, Sub-task creation, Template-based task registration, Integration with iOS Calendar and Google Calendar, Apple Watch task viewing

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ToDo Calendar Pro License | $1.99 | one-time |


## Frequently asked questions

### Is CrunchIoT free?

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

### Is ToDo Calendar Pro free?

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

### Do CrunchIoT or ToDo Calendar Pro have ads?

ToDo Calendar Pro shows ads; CrunchIoT does not.

### Which is updated more often, CrunchIoT or ToDo Calendar Pro?

CrunchIoT ships an update every 3 months, and ToDo Calendar Pro every 2 months. Most recently, CrunchIoT was updated on October 20, 2026 and ToDo Calendar Pro on October 23, 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.*