KAI KeyboardAI vs Plain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KAI KeyboardAI
Enhance your typing with an AI-powered keyboard that offers smart suggestions, contextual responses, and multilingual support. Improve professional communication and craft engaging messages for any situation, all accessible from your keyboard.
- AI-powered writing suggestions
- Contextual response generation
- Multilingual translation
- Professional writing assistance
- Dating message crafting
- Quick keyboard access
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Upgrade your iPhone typing experience with KAI - KeyboardAI, the groundbreaking app that seamlessly integrates AI capabilities into your keyboard. Whether you're a working professional, or navigating the dating scene, KAI's AI-powered keyboard will fundamentally change the way you write and communicate! Key Features: AI-Powered Writing: KAI's smart suggestions help you craft perfect messages, emails, and more with ease. Say goodbye to writer's block and hello to seamless communication. Contextual Responses: KAI understands the context of your conversations, providing relevant and engaging responses for any situation. Multilingual Support: Break language barriers with KAI's multilingual functionality. Effortlessly communicate in multiple languages with AI-generated translations. Professional Writing: Improve your professional communication by generating clear and concise emails and texts using KAI Keyboard. Dating Success: Boost your chances of finding that special someone with KAI's dating mode, helping you craft witty, charming, and engaging messages. Quick Access: KAI is available with a single tap on your keyboard anywhere in your iPhone. Always at your service. Experience the ultimate AI-driven keyboard for your iPhone and transform the way you communicate with KAI - KeyboardAI. Download now and unleash the true potential of your iPhone's keyboard! By using the app, you are agreeing to our Privacy Policy and Terms of Use: https://trykai.app/privacy_policy.html https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Plain
This advanced AI-powered keyboard acts as your personal text assistant, offering features like grammar correction, translation, and tone adjustment. It helps you write, communicate, and generate text more effectively across all your applications.
- Grammar and spell check
- Seamless translation
- AI-powered answers
- Tone adjustment
- Text paraphrasing
- Response generation
- Text continuation
- Synonym finder
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Introducing Plain - AI Keyboard: Your Advanced Text Assistant! Why Plain? Plain isn't just another keyboard. It's your personal text assistant, powered by GPT-4, designed to elevate your writing experience across all apps. Whether you're chatting, working, or just exploring, Plain has got your back! FEATURES: - Grammar & Spell Check: Never second-guess your writing again! Plain automatically corrects any grammar or spelling mistakes in your text, ensuring you always put your best word forward. - Translate: Speak the global language! With Plain, your text is seamlessly translated to your desired language, with the source detected automatically. - Ask AI: Stuck on a question? Get instant answers on general knowledge topics. Just type, and let Plain provide the insights! - Tone Changer: Adapt your message to any situation. Specify a tone - be it friendly, professional, flirty, or any of our other options - and watch Plain craft your text accordingly. - Paraphrase: Say it differently, but keep the essence. Plain rephrases your text, maintaining the original tone, giving you a fresh perspective. - Reply: Never be at a loss for words. Enter a message, and Plain will generate a fitting response, making conversations smoother. - Continue Text: Extend your thoughts effortlessly. Provide a starting point, and let Plain continue your text in the same tone and context. - Find Synonyms: Expand your vocabulary! For any word you input, Plain offers a synonym, enriching your writing. Privacy & Security: Your privacy is our priority. Plain operates with transparency, ensuring your data remains secure and private. We value your trust! For any app-related queries, please send an email to info@mobiversite.com Privacy policy: https://www.mobiversite.com/privacypolicy Terms & Conditions: https://www.mobiversite.com/terms EULA: https://www.mobiversite.com/eula
Screenshots
Verdict
The clearest difference is update cadence: KAI KeyboardAI at every 3 weeks against Plain's every 4 months. On price, review sentiment, ads and in-app purchases 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. KAI KeyboardAI sells 2 in-app purchases, starting at $4.99 per 7 days and Plain sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
KAI KeyboardAI ships an update every 3 weeks, Plain every 4 months. Both last shipped on November 3, 2026.
| Parameter | KAI KeyboardAI | Plain |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (16 ratings) — better | — |
| Positive reviews | 53.8% of reviews — better | 50.0% of reviews |
| Number of ratings | 16 — better | — |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 35 MB | 26 MB |
| Age rating | 17+ | 4+ |
| Developer | Akshat Giri LLC | MOBIVERSITE YAZILIM BILISIM REKLAM VE DANISMANLIK HIZMETLERI SANAYI TICARET LIMITED STI |
Customer experience
KAI KeyboardAI
Plain
In-app purchases
KAI KeyboardAI
- All Access3 Days trial$4.997 Days
- All Access$39.991 Year
Plain
- 1 Week PRO$4.997 Days
- 1 Month PRO$9.991 Month
- 1 Year PRO$39.991 Year








