Comparison

敬語ボタン|AI変換・返信キーボード vs Due Date Pro

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

Head to head
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.

About

Due Date Pro

Read full description

Due Date Pro is a fresh take on scheduling that lets you organize payments, deadlines, and events by the people they belong to. ■ Manage by Person Sort schedules and expenses by the people involved—spouse, kids, company, and more. See at a glance who each item is for, so family and work never get tangled together. ■ Visualize Money & Schedules See payments and deadlines through clear charts and an intuitive UI. Instantly grasp how much you owe this month and which items are coming up. ■ Spending Analysis Automatically tally and analyze amounts by person and category—perfect for rethinking subscriptions and fixed costs. Monthly-equivalent conversion and multi-currency supported. ■ Never Miss a Deadline Beyond the standard tone, choose an alarm sound that keeps ringing until you respond. Toggle it on or off per item. ■ Recurring Schedules & 3 Languages Auto-register monthly and weekly repeats. Fully available in English, Japanese, and Chinese. For anyone who wants to manage family finances and personal schedules smartly, all in one place.

Screenshots

敬語ボタン|AI変換・返信キーボード4 screens
Due Date Pro4 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 Due Date Pro's 1. 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 fortnightly). On price, device support 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. Due Date Pro sells 1 one-off in-app purchase. 敬語ボタン|AI変換・返信キーボード asks for nothing beyond the download.

UpkeepUpdate frequency

敬語ボタン|AI変換・返信キーボード ships an update every 3 days, Due Date Pro fortnightly. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 3 level
敬語ボタン|AI変換・返信キーボード versus Due Date Pro: the parameters behind the verdict, then further details
Parameter敬語ボタン|AI変換・返信キーボードDue Date Pro
PriceFreeFree
Update frequencyEvery 3 days — betterFortnightly
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhoneiPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size228 MB9 MB
Age rating4+4+
DeveloperYihuan SunAnbery

In-app purchases

None

敬語ボタン|AI変換・返信キーボード

No in-app purchases

1 purchases

Due Date Pro

One-time1
  • Lifetime Pro (Ad-Free)$2.99

Questions

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.
Is Due Date Pro free?
Due Date Pro is free to download, with in-app purchases available.
Do 敬語ボタン|AI変換・返信キーボード or Due Date Pro have ads?
Due Date Pro shows ads; 敬語ボタン|AI変換・返信キーボード does not.
Which is updated more often, 敬語ボタン|AI変換・返信キーボード or Due Date Pro?
敬語ボタン|AI変換・返信キーボード ships an update every 3 days, and Due Date Pro fortnightly. Most recently, 敬語ボタン|AI変換・返信キーボード was updated on October 10, 2026 and Due Date Pro on October 7, 2026.

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