# ISO 8601 Keyboard vs Calnote

The clearest difference is price: Calnote at Free against ISO 8601 Keyboard's $1.99. Calnote also leads on update cadence (every 6 days vs every 7 months). ISO 8601 Keyboard's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Calnote is free to download; ISO 8601 Keyboard costs $1.99 up front. Calnote sells 3 in-app purchases, starting at $0.99 per month. ISO 8601 Keyboard asks for nothing beyond the download.

ISO 8601 Keyboard ships an update every 7 months, Calnote every 6 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ISO 8601 Keyboard | Calnote |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iso-8601-keyboard/id1212402214/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 days** |
| Monetization | Paid | — |
| Size | 7 MB | 4 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Branagan](https://appshunter.io/developer/1212402213) | [金苹 卢](https://appshunter.io/developer/1885537846) |

## What reviewers say

### ISO 8601 Keyboard

[App page](https://appshunter.io/ios/app/iso-8601-keyboard/id1212402214)

Instantly input dates in YYYY-MM-DD format with a single tap. Offers a date picker for any date and smart backspace for easy correction. Streamlines workflows for professionals working with standardized dates.

**Highlights:** Instant date entry (yesterday, today, tomorrow), ISO 8601 format (YYYY-MM-DD), Date picker wheel for any date, Smart backspace for date removal, Auto space after date, Auto keyboard switch

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Calnote

[App page](https://appshunter.io/ios/app/calnote-calendar-journal/id6793019621)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $0.99 | per month |
| Yearly Membership | $9.99 | per year |
| Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is ISO 8601 Keyboard free?

ISO 8601 Keyboard costs $1.99, with no in-app purchases.

### Is Calnote free?

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

### Do ISO 8601 Keyboard or Calnote have ads?

Neither ISO 8601 Keyboard nor Calnote shows ads.

### Which is updated more often, ISO 8601 Keyboard or Calnote?

ISO 8601 Keyboard ships an update every 7 months, and Calnote every 6 days. Most recently, ISO 8601 Keyboard was updated on October 26, 2026 and Calnote on October 25, 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.*