Comparison

Simeji vs 敬語ボタン|AI変換・返信キーボード

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

Head to head
About

Simeji

This keyboard app offers a customizable Japanese input experience with a vast library of emoticons, emoji, and stickers. It features a cloud-based dictionary for up-to-date slang and phrases, along with options to personalize your keyboard's appearance. Advanced users can enjoy VIP features like OCR and unlimited theme customization.

Highlights
  • Skinnable keyboard with custom wallpapers and themes
  • Extensive emoticon and emoji library with rankings
  • Cloud-based dictionary with 2M entries
  • Preset and user-shared phrases
  • Popular Simeji stickers
  • VIP exclusive themes and custom parts
  • OCR function for text conversion
Features
Read full description

Simeji is a free Japanese input keyboard that has reached over 39M downloads! It comes with a skinnable keyboard, cute emoticons, emoji, and more! This is the most popular keyboard app in Japan! Try it today! Simeji is a keyboard with these features! Skinnable keyboard - Add a wallpaper to your keyboard using a photo,image and video. - Chock-full of keyboard themes! - Also lots of features to change your text color and decorate your flick keyboard. Use cute emoticons and emoji - See the emoticon and emoji rankings to find the most popular ones! - Popular emoticons can be inserted immediately and let you add some spice to your chats on LINE, Twitter, and Facebook! Robust Japanese input and conversion features - The cloud-based dictionary contains 2M entries, covering everything from anime slang to the latest buzzwords - Lots of preset phrases you can use for Nico Nico, in-game chat, telling someone you're late, and more - As requested by users, the "Fun conversion" feature has now been added! There's also the "Everyone's Dictionary" feature, which lets you share cute emoticons with others. Easy keyboard input - Rapidly switch from the top of the keyboard to select emoticons, emoji, numerals, and special characters Popular Simeji stickers - Comes with the popular set of Simeji stickers New fun stickers are being uploaded by users every day! These cool stickers are free to use! [Simeij VIP] Plan 1) Simeji VIP monthly 400 yen / month 2) Simeji VIP 12 month 200 yen / month (2,400 yen per year) 50% OFF every year [About automatic renewal and cancellation] Free trial is only available when you register for VIP for the first time in the App Store. After the free trial, you will be automatically charged 400 yen per month. A monthly fee will be charged within 24 hours before the end of the subscription period. Unless canceled at least 24 hours before the end of the subscription period, your subscription will automatically continue. Payment will be charged to Apple ID account. Deleting an app does not cancel your subscription. Cancellation procedure cannot be performed on the Simeji App side. Please manage or cancel your subscription in your App Store account settings. Benefits VIP exclusive theme Unlimited use VIP special theme -Unlimited use of luxury keyboard custom parts theme and deco parts are upgraded for VIP only -Unlimited photo theme settings No need to organize when you create a new photo theme VIP fixed phrase & reverse lookup dictionary -You can select frequently used sentences incrementaly. VIP backup -Easy backup of user user dictionary OCR function -You can convert and save text and text when you take a picture of the screen or paper. Remove ads -Smooth input operations! * VIP exclusive theme function is not available on iPad. Please note. The information desk - Customer Support (simeji_support@baidu.com) Business hours: Monday to Friday 10: 00-18: 00 (excluding Saturdays, Sundays and holidays, and our designated holidays) * The contract for this service is automatically renewed. You will be automatically charged for renewal on a service-provided basis until the customer is suspended on the AppStore. * If the service is in the free trial period, the free period ends when you apply for the service. - Terms of use https://simeji.me/termofuse/ - Privacy Policy https://simeji.me/privacy/ - Display based on the Specified Commercial Transaction Law https://stat.ime.baidu.jp/page/terms/ios/premium/index.html

About

敬語ボタン|AI変換・返信キーボード

Features
Read full description

Writing Japanese is one thing. Sounding right is another. A message can be grammatically correct and still feel too blunt, too casual, or strangely formal. 敬語ボタン helps you find the right tone without leaving the app you are using. Type normally in LINE, email, Slack, Instagram, or any other app, then tap an AI button to make your Japanese more polite, natural, concise, friendly, or professional. No copying everything into ChatGPT. No rewriting the same sentence five times. Just type, tap, and send with confidence. ■ Made for real-life Japanese communication ・Write appropriate messages to managers, professors, clients, and coworkers ・Turn textbook Japanese into wording that sounds more natural ・Soften messages that may come across as cold or too direct ・Create polished Japanese emails without memorizing business expressions ・Translate English into natural Japanese that fits the situation ・Generate a reply when you are unsure what to say next ■ Key features ◎ Rewrite Japanese in one tap Transform your text into polite Japanese, business Japanese, casual language, clearer wording, and more. Choose the tone that fits the person and situation. ◎ AI Reply Copy a message you received and tap Reply. AI reads the context and suggests natural responses you can send or edit. ◎ A complete Japanese keyboard Use flick input or romaji input and switch between them freely. 敬語ボタン works as your everyday Japanese keyboard—not just a separate writing tool. ◎ Multiple suggestions Compare several versions and choose the one that sounds most like you. Replace your original text instantly without complicated settings. ◎ Create AI buttons for your needs Set up buttons for tasks such as proofreading, translation, email writing, shortening, or casual conversation. ■ Designed with privacy in mind Normal keyboard input is processed on your device. Text is sent to AI only when you intentionally tap an AI button. Your everyday typing is not automatically uploaded or analyzed. ■ Recommended for ・International students and professionals living in Japan ・Japanese learners who understand the language but struggle with tone ・Anyone who regularly communicates with Japanese coworkers or clients ・People who want to write faster without sounding unnatural ・Both flick-input and romaji-input users Spend less time wondering, “Does this sound okay?” With 敬語ボタン, write Japanese that fits the moment—and send it with confidence.

Screenshots

Simeji4 screens
敬語ボタン|AI変換・返信キーボード4 screens

Verdict

The call

The clearest difference is in-app purchases: 敬語ボタン|AI変換・返信キーボード at none against Simeji's 19. 敬語ボタン|AI変換・返信キーボード also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 weeks). Simeji's advantage is device support (4 vs 1). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Simeji sells 18 in-app purchases, starting at $1.99 per month. 敬語ボタン|AI変換・返信キーボード asks for nothing beyond the download.

UpkeepUpdate frequency

Simeji ships an update every 2 weeks, 敬語ボタン|AI変換・返信キーボード every 3 days. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
Simeji versus 敬語ボタン|AI変換・返信キーボード: the parameters behind the verdict, then further details
ParameterSimeji敬語ボタン|AI変換・返信キーボード
PriceFreeFree
Rating4.6 (1.2K ratings) — better—
Positive reviews64.2% of reviews—
Number of ratings1.2K — better—
Update frequencyEvery 2 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size193 MB228 MB
Age rating4+4+
DeveloperBaidu Japan Inc.Yihuan Sun

Bugs and requests

Simeji

Reported bugs

3 issues
  • Keyboard keeps asking for full access
  • Saved emojis/emoticons disappear
  • Intrusive popup ads

Requested features

4 requests
  • Add English language support
  • Improve QWERTY keyboard layout
  • Add auto-capitalization feature
  • Introduce simplified and traditional Chinese keyboards

敬語ボタン|AI変換・返信キーボード

Not enough reviews yet to summarise bugs or requests.

In-app purchases

18 purchases

Simeji

Subscriptions10
  • 月間会員7 Days trial$1.991 Month
  • Simeji月間 VIP$2.991 Month
  • Simeji 月間VIP1 Month trial$2.991 Month
Show 7 more
  • Simeji VIP Lv1 1ヶ月コース(初月半額)1 Month trial$2.991 Month
  • 月額会員7 Days trial$3.491 Month
  • プレミアムサービス$9.996 Months
  • Simeji VIP7 Days trial$15.991 Year
  • 年間会員7 Days trial$21.991 Year
  • Simeji VIP年間会員$30.991 Year
  • Simeji VIP Lv2 年間コース$199.991 Year
One-time8
  • ガーリーうさぎ$1.99
  • クールブルー$1.99
  • ゆめかわユニコーン$1.99
Show 5 more
  • ユリ$1.99
  • クラシックピアノ$1.99
  • きらきらジュエリー シルバー$1.99
  • 白薔薇切り絵$1.99
  • [有料]まふまふきせかえ$2.99
None

敬語ボタン|AI変換・返信キーボード

No in-app purchases

Questions

Is Simeji free?
Simeji is free to download, with in-app purchases available.
Is 敬語ボタン|AI変換・返信キーボード free?
敬語ボタン|AI変換・返信キーボード is free to download, with no in-app purchases.
Do Simeji or 敬語ボタン|AI変換・返信キーボード have ads?
Simeji shows ads; 敬語ボタン|AI変換・返信キーボード does not.
Which is updated more often, Simeji or 敬語ボタン|AI変換・返信キーボード?
Simeji ships an update every 2 weeks, and 敬語ボタン|AI変換・返信キーボード every 3 days. Most recently, Simeji was updated on October 17, 2026 and 敬語ボタン|AI変換・返信キーボード on October 10, 2026.

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