Comparison

Plain vs KeyWise

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

Head to head
About

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.

Highlights
  • Grammar and spell check
  • Seamless translation
  • AI-powered answers
  • Tone adjustment
  • Text paraphrasing
  • Response generation
  • Text continuation
  • Synonym finder
Features
Read full description

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

About

KeyWise

Enhance your writing with an intelligent AI keyboard. It offers grammar and spell checking, translation, tone adjustment, paraphrasing, and instant AI-powered answers. Unlock full potential with a premium subscription.

Highlights
  • Grammar & Spell Check
  • Real-time Translation
  • AI-powered Q&A
  • Tone Adjustment
  • Paraphrasing Tool
  • Auto-Reply Suggestions
  • Text Continuation
Features
Read full description

Introducing KeyWise - Your Intelligent AI Keyboard: Powered by GPT-3.5! Why KeyWise? KeyWise is more than just a keyboard; it's your ultimate text companion, driven by cutting-edge GPT-3.5 technology. Designed to enhance your writing experience across all your favorite apps, KeyWise is here to assist you in every way imaginable, whether you're chatting, working, or simply exploring. FEATURES: - Grammar & Spell Check: No more second-guessing your writing! KeyWise automatically corrects grammar and spelling errors in your text, ensuring that you always present your best self in writing. - Translation: Break language barriers effortlessly! With KeyWise, your text is seamlessly translated into your preferred language, with automatic source language detection. - Ask AI: Curious about something? Get instant answers to general knowledge questions. Just type your query, and KeyWise will provide you with insightful responses. - Tone Adjustment: Adapt your message to any context. Specify the tone you want - be it friendly, professional, playful, or any other option - and watch KeyWise tailor your text accordingly. - Paraphrasing: Say it differently while preserving the original meaning. KeyWise rephrases your text while maintaining its original tone, giving you a fresh perspective. - Auto-Reply: Never be lost for words. Enter a message, and KeyWise will generate a fitting response, making your conversations smoother and more engaging. - Text Continuation: Extend your thoughts effortlessly. Provide a starting point, and let KeyWise continue your text in the same tone and context, streamlining your writing process. - Synonym Finder: Expand your vocabulary! For any word you input, KeyWise offers synonyms, enriching your writing and helping you find the perfect word. - Privacy & Security: We prioritize your privacy. KeyWise operates transparently to ensure your data remains secure and private. Your trust is essential to us! UNLOCK ALL FEATURES WITH PREMIUM SUBSCRIPTION Get unlimited daily uses and unlock all features to supercharge your productivity with KeyWise – AI premium subscription plans: Weekly: $4.99 Monthly: $14.99 Yearly: $59.99 Payments and Renewal: Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase No cancellation of the current subscription is allowed during the active period. For any questions related to the app, please feel free to reach out to us via email at support@owlapps.co **Privacy Policy:** https://owlapps.notion.site/Privacy-Policy-KeyWise-AI-Keyboard-Writer-92a57c85a71f4846a7765dbeaad850c3?pvs=4 **Terms & Conditions:** https://owlapps.notion.site/Terms-of-Use-KeyWise-1c5ef2eec81b4d2283163ab1d6c61aa7?pvs=4

Screenshots

Plain4 screens
KeyWise4 screens

Verdict

The call

The clearest difference is review sentiment: KeyWise at 100% against Plain's 50%. KeyWise also leads on update cadence (every 4 weeks vs every 4 months). Plain's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model 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. Plain sells 3 in-app purchases, starting at $4.99 per 7 days and KeyWise sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Plain ships an update every 4 months, KeyWise every 4 weeks. Both last shipped on November 3, 2026.

Scorecard3 real differences · 7 level
Plain versus KeyWise: the parameters behind the verdict, then further details
ParameterPlainKeyWise
PriceFreeFree
Rating—4.7 (29 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings—29 — better
Update frequencyEvery 4 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size26 MB78 MB
Age rating4+4+
DeveloperMOBIVERSITE YAZILIM BILISIM REKLAM VE DANISMANLIK HIZMETLERI SANAYI TICARET LIMITED STIOwl Apps LLC

Customer experience

Plain

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

KeyWise

All ratings29 ratings
Positive89.7%
Neutral6.9%
Negative3.4%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Plain

Subscriptions3
  • 1 Week PRO$4.997 Days
  • 1 Month PRO$9.991 Month
  • 1 Year PRO$39.991 Year
3 purchases

KeyWise

Subscriptions3
  • Weekly$4.997 Days
  • Monthly$14.991 Month
  • Yearly3 Days trial$59.991 Year

Questions

Is Plain free?
Plain is free to download, with in-app purchases available.
Is KeyWise free?
KeyWise is free to download, with in-app purchases available.
Do Plain or KeyWise have ads?
Neither Plain nor KeyWise shows ads.
Which is updated more often, Plain or KeyWise?
Plain ships an update every 4 months, and KeyWise every 4 weeks. Most recently, Plain was updated on November 3, 2026 and KeyWise on November 3, 2026.

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