ISO 8601 Keyboard vs Marky Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ISO 8601 Keyboard
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.
- 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
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Type dates the right way instantly. Stop typing dates by hand. ISO 8601 Keyboard puts yesterday, today, and tomorrow's date in YYYY-MM-DD format one tap away. Perfect for developers, researchers, writers, and anyone who works with standardized dates. INSTANT DATE ENTRY Tap once to insert yesterday's, today's, or tomorrow's date in ISO 8601 format. No typing, no mistakes. DATE WHEEL FOR ANY DATE Need a date beyond tomorrow? Or maybe years ago? Swipe left to reveal a date picker wheel and insert any date in YYYY-MM-DD format just as easily. SMART BACKSPACE Made a mistake? One tap of the backspace key removes the entire last date you typed — no hunting character by character. AUTO SPACE Optionally append a space after every date so your cursor is always ready for the next word. AUTO KEYBOARD SWITCH Set the keyboard to automatically return to your previously active keyboard after inserting a date, keeping your workflow seamless. LIGHTWEIGHT & PRIVATE ISO 8601 Keyboard uses minimal system resources and never touches your data.
Marky Notes
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Marky Notes is a simple notes app with the following features: • Uses the markdown format to allow for more formatting/structuring of your notes. • Uses a classic folder structure to use your notes later on any device. • Export your notes to a zip file or cloud
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ISO 8601 Keyboard | Marky Notes |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 8 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Branagan | Dejan Boras |
In-app purchases
ISO 8601 Keyboard
No in-app purchases
Marky Notes
No in-app purchases
Questions
Is ISO 8601 Keyboard free?
Is Marky Notes free?
Do ISO 8601 Keyboard or Marky Notes have ads?
Which is updated more often, ISO 8601 Keyboard or Marky Notes?
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