Kubot AI Key vs ChatNPU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kubot AI Key
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Tired of typos, awkward grammar, or struggling to find the right words? Kubot AI Key is the AI-powered keyboard that lives right where you type. Get instant smart help in any app—chat, email, or social media—and express yourself clearly and perfectly, every time. - - - - - - - - - - - Key Features at a Glance: ‧One-Tap Grammar Fix AI auto-detects and fixes spelling and grammar mistakes, making every sentence clear and professional. ‧Instant Translation Supports multiple languages. Translate your text in seconds without ever leaving the keyboard. ‧Switch Tones Instantly Go professional, friendly, romantic—adjust your writing tone with just one tap. ‧Creative CNY Card Maker Upload a photo and watch AI instantly generate a personalized New Year greeting card! - - - - - - - - - - - Why Choose Kubot AI Key? –Full Input Method Support—Seamlessly works with English, Quick (Cangjie), and other keyboards. –No App Switching Needed—Use it everywhere you type: messaging, emails, social apps. –Your Pocket Writing Coach—Get real-time suggestions to level up your communication skills. –Multilingual Check & Translate—Perfect for study, work, and daily chats across languages. - - - - - - - - - - - Let Kubot AI live inside your keyboard. Say goodbye to typing struggles—and hello to saying exactly what you mean. Download Kubot AI Key now and communicate smarter today!
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 update cadence: Kubot AI Key at every 3 days against ChatNPU's every 8 days. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Kubot AI Key ships an update every 3 days, ChatNPU every 8 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | Kubot AI Key | ChatNPU |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Every 8 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 39 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Four Directions | RBN SPC LTD |
In-app purchases
Kubot AI Key
No in-app purchases
ChatNPU
No in-app purchases









