A 2-row, 16-key keyboard designed for smartphones
Details
- External ID
- 46220902
- Source
- HN
- Company
- —
- Product
- A 2-row, 16-key keyboard designed for smartphones
- Website domain
- k-keyboard.com
- Launched
- Dec. 10, 2025
- Cohort
- —
- Upvotes
- 84
- Upvotes percentile
- 0.8759541984732825
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Description
Mobile keyboards today are almost entirely based on the 26-key, 3-row QWERTY layout. Here’s a new 2-row, 16-key alternative designed specifically for smartphones.
Enrichment
- Theme
- custom keyboards and input controllers
- Vertical
- Horizontal
- Function
- Hardware & robotics
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- compact keyboard for smartphones
- Manually corrected
- False
Could you build this?
Partial Building a custom mobile keyboard UI/demo in web or basic iOS/Android input method is straightforward, but creating an accurate disambiguation engine and predictive text algorithm for a 16-key layout requires non-trivial language modeling and touch-target optimization.
What it would actually take: To build a production smartphone keyboard (iOS Keyboard Extension / Android IME), you need native Swift/Kotlin code conforming to mobile keyboard APIs, paired with a custom C++/Rust predictive engine (using Trie data structures, n-gram or small on-device neural language models, and spatial tap likelihood estimation). The hard part is achieving sub-10ms touch-to-key latency while running probabilistic ambiguity resolution across millions of words under tight memory constraints (e.g., iOS's 30MB memory limit for extensions).
Discussion
20 comments analyzed.
Competitors mentioned: Apple's keyboard (receives fuller touch data), Swype/swiping keyboards, T9 predictive typing, Minuum keyboard
Concerns raised: Not compatible with slide/swipe typing input method, QWERTY layout is inefficient; requires multiple taps for letters, Unclear value proposition compared to existing solutions, Typing accuracy decreases with dual-language input, Third-party keyboards get less touch data than Apple's native keyboard
Feature requests: Auto-capitalize sentence starts, Double-space for period and space (sentence ending), Enable automatic word suggestions, Tap-and-hold for extended/multilingual characters, Support for one-handed use on large phones
Competitors
Other products that read as similar to this one — 44 launches clear the similarity bar, closest 8 shown.
Attention rank: #8 of 45 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 4 days after the earliest competitor.
- QWERTY mini Pro · hn · 2026-03-30 · 8 upvotes · similarity 0.73
- Split Keyboard for iPad · ph · 2026-09-12 · 3 upvotes · similarity 0.47
- US keyboards don't have enough keys, so I switched to Japanese · hn · 2026-04-15 · 7 upvotes · similarity 0.45
- Effected Keyboard 2 · hn · 2026-04-28 · 13 upvotes · similarity 0.45
- winboard · github · 2026-09-20 · 35 upvotes · similarity 0.45
- Beautiful BubbleText Keyboard · ph · 2026-09-18 · 1 upvotes · similarity 0.43
- I spent 2 years designing a mechanical Magic Keyboard · hn · 2026-08-06 · 306 upvotes · similarity 0.41
- Introducing the Blue Smart Dictation Keyboard for iPhone · yc · 2026-05-13 · 7 upvotes · similarity 0.40
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a hardware & robotics tool for Fintech yet.