Lefty Keyboard vs ChatNPU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lefty Keyboard
A universal keyboard layout designed specifically for left-handed iPhone and iPad users. It prioritizes privacy with no tracking or full access, and is optimized for performance and battery life.
- Left-handed layout
- Universal for iPhone/iPad
- No full access required
- No tracking
- No ads
- Lightweight and battery-friendly
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Lefty Keyboard — the keyboard built for the 10% who are left out. Every mainstream keyboard is laid out for right-handers. Lefty Keyboard mirrors the layout for your left hand, so one-handed typing finally feels natural. FEATURES • Left-hand optimized layout — keys placed for easy left-thumb reach • 8 English locales (US, UK, AU, CA and more) + Turkish • Spacebar-drag cursor control — slide the spacebar to move the caret • Custom key & letter colors for light and dark mode • Key press sounds • Smart auto-correction with downloadable dictionaries • Lightweight and battery-friendly PRIVACY FIRST The keyboard has NO Full Access and never logs your keystrokes — what you type never leaves your device. Privacy Policy: https://www.hiddenmine.com/apps/lefty-keyboard/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ChatNPU
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ChatNPU Keyboard rewrites your text instantly in the style you choose. Select an identity, tap once, and you are offered a new version powered by on-device AI. Built for privacy, your typed and rewritten text stays on device. ChatNPU is available on supported devices with the required on-device AI capabilities.
Screenshots
Verdict
The clearest difference is in-app purchases: ChatNPU at none against Lefty Keyboard's 6. ChatNPU also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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
Both are free to download. Lefty Keyboard sells 6 in-app purchases, starting at $2.99 per month. ChatNPU asks for nothing beyond the download.
Lefty Keyboard ships an update every 9 days, ChatNPU every 8 days. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.
| Parameter | Lefty Keyboard | ChatNPU |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 9 days | Every 8 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 3 MB |
| Age rating | 12+ | 4+ |
| Developer | EMiR EMRAH UCKAN | RBN SPC LTD |
In-app purchases
Lefty Keyboard
- Lefty Pro Monthly$2.991 Month
- Destekçi - Aylık$4.991 Month
- Lefty Pro7 Days trial$29.991 Year
- Küçük Bahşiş$0.99
- Orta Bahşiş$2.99
- Büyük Bahşiş$4.99
ChatNPU
No in-app purchases
