# ISO 8601 Keyboard vs Marky Notes

The clearest difference is price: Marky Notes at Free against ISO 8601 Keyboard's $1.99. Marky Notes also leads on update cadence (every 3 months vs every 8 months) and iOS requirement (15.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Marky Notes is free to download; ISO 8601 Keyboard costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ISO 8601 Keyboard ships an update every 8 months, Marky Notes every 3 months. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ISO 8601 Keyboard | Marky Notes |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 5 MB | 25 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Branagan](https://appshunter.io/developer/1212402213) | [Dejan Boras](https://appshunter.io/developer/1612985659) |

## 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


### Marky Notes

[App page](https://appshunter.io/ios/app/marky-notes/id6449909608)

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

**In-app purchases:** none


## Frequently asked questions

### Is ISO 8601 Keyboard free?

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

### Is Marky Notes free?

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

### Do ISO 8601 Keyboard or Marky Notes have ads?

Neither ISO 8601 Keyboard nor Marky Notes shows ads.

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

ISO 8601 Keyboard ships an update every 8 months, and Marky Notes every 3 months. Most recently, ISO 8601 Keyboard was updated on October 13, 2026 and Marky Notes on October 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.*