Comparison

Kubot AI Key vs ChatNPU

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Kubot AI Key

Features
Read full description

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!

About

ChatNPU

Read full description

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

Kubot AI Key4 screens
ChatNPU4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 5 level
Kubot AI Key versus ChatNPU: the parameters behind the verdict, then further details
ParameterKubot AI KeyChatNPU
PriceFreeFree
Update frequencyEvery 3 days — betterEvery 8 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size39 MB3 MB
Age rating4+4+
DeveloperFour DirectionsRBN SPC LTD

In-app purchases

None

Kubot AI Key

No in-app purchases

None

ChatNPU

No in-app purchases

Questions

Is Kubot AI Key free?
Kubot AI Key is free to download, with no in-app purchases.
Is ChatNPU free?
ChatNPU is free to download, with no in-app purchases.
Do Kubot AI Key or ChatNPU have ads?
Neither Kubot AI Key nor ChatNPU shows ads.
Which is updated more often, Kubot AI Key or ChatNPU?
Kubot AI Key ships an update every 3 days, and ChatNPU every 8 days. Most recently, Kubot AI Key was updated on October 28, 2026 and ChatNPU on October 31, 2026.

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