A 2-row, 16-key keyboard designed for smartphones
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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.
HN · launched Dec 10, 2025 · 84 upvotes (top 12%) · 0 views
Niche: typing tutors and keyboard tools · 131 launches, 14 in the last 7 days ▲ +75% · Explore this niche →
Category and tags
- Horizontal
- Hardware & robotics
- B2C
- Not AI
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 131 launches in typing tutors and keyboard tools →
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 : 114 launches clear the similarity bar, closest 8 shown.
Attention rank: #21 of 115 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Looks like the first mover among its competitors.
- QWERTY mini Pro · hn · 2026-03-30 · 8 upvotes · similarity 0.73
- Keycap Atelier · ph · 2026-11-11 · 1 upvotes · similarity 0.51
- Split Keyboard for iPad · ph · 2026-09-12 · 3 upvotes · similarity 0.46
- A Truly Modular Keyboard · hn · 2026-10-25 · 318 upvotes · similarity 0.46
- PC Bluetooth Keyboard & Mouse · ph · 2026-10-09 · 2 upvotes · similarity 0.45
- Ortho-Ball · github · 2026-09-30 · 9 upvotes · similarity 0.45
- 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 0.44
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