Comparison

28 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

28

Features
Read full description

・Its troublesome to calculate the 28 hours... ・I don't know the calculation for my summer break and after its over ・I wonder if my hours are all right as I was asked to work OT... ・I have so many part-time jobs that I can't calculate… With this app, you can manage your part-time job hours without thinking about anything! ◆◆ Things you can do with the app ◆◆ ・Calculate weekly hours (8 hours per day during long breaks) ・Calculate total hours across multiple part-time job locations ・Check the available working hours for today ・Keep a record of your part-time job growth

About

敬語ボタン|AI変換・返信キーボード

This AI-powered keyboard helps you write Japanese messages with the appropriate tone for any situation. Easily transform your text into polite, professional, or natural-sounding Japanese, and get AI-generated replies without leaving your current app.

Highlights
  • Rewrite Japanese in one tap
  • AI-generated replies
  • Complete Japanese keyboard functionality
  • Multiple text suggestions
  • Customizable AI buttons
  • Privacy-focused input processing
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

284 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 update cadence: 敬語ボタン|AI変換・返信キーボード at every 3 days against 28's every 6 weeks. 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

28 ships an update every 6 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 26, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 8 level
28 versus 敬語ボタン|AI変換・返信キーボード: the parameters behind the verdict, then further details
Parameter28敬語ボタン|AI変換・返信キーボード
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 6 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better16.4
Further details — not scored
Size314 MB229 MB
Age rating4+4+
DeveloperMORI KOSAN CO.,LTD.Yihuan Sun

In-app purchases

None

28

No in-app purchases

None

敬語ボタン|AI変換・返信キーボード

No in-app purchases

Questions

Is 28 free?
28 is free to download, with no in-app purchases.
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 28 or 敬語ボタン|AI変換・返信キーボード have ads?
Neither 28 nor 敬語ボタン|AI変換・返信キーボード shows ads.
Which is updated more often, 28 or 敬語ボタン|AI変換・返信キーボード?
28 ships an update every 6 weeks, and 敬語ボタン|AI変換・返信キーボード every 3 days. Most recently, 28 was updated on October 26, 2026 and 敬語ボタン|AI変換・返信キーボード on October 25, 2026.

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