送信前チェッカー

Digital Lab Apps

In-app purchases

About this app

The Pre-Send Checker is an AI-powered text checking app that gently refines your messages before sending them, whether it's for LINE, DMs, emails, work replies, or dating app messages.

"Does this sound too heavy?"

"Does this sound too cold?"

"I want to be a little more polite."

"I want to use language that won't be easily misunderstood."

This app supports you with these pre-send anxieties through text checking.


■ What you can do


• AI checks your messages before sending

• Adjusts to softer expressions

• Suggests ways to avoid sounding too heavy

• Creates polite replies

• Adjusts to suit your purpose (e.g., leaving a positive impression, declining, apologizing)

• Checks according to your relationship with the recipient (e.g., romance, friendship, work)

• Allows you to review past check results from your history


■ Pro Features


Pro allows you to compare multiple ways of saying a single message.


• Gentle options

• Polite options

• Shorter options

• Natural options

• Options that create distance

For important replies, you can compare several options before sending.


The Pro version also supports increased usage limits and ad removal.

■ Recommended for these situations:

・Want to check before sending a LINE reply
・Want to make your DMs gentler
・Want to respond to work-related inquiries politely
・Want to make apologies less heavy-handed
・Want to decline requests softer
・Want to avoid misunderstandings in messages with romantic partners or friends
・Want to calmly review your message before sending it

■ Precautions

The check results and improvement suggestions in this app are for reference only.

We do not guarantee the recipient's reaction, relationship results, or outcomes in romance or work.

Do not enter personal information, confidential information, passwords, financial information, medical information, or details related to legal consultations.

Do not use this as a substitute for important decisions regarding medical, legal, financial, or life matters.

What’s new

Pro機能を追加しました。
Proでは、やさしい・丁寧・短め・自然体・距離を置くの5パターン返信案を見比べられるようになりました。

追加チェック、月額Pro、年額Proに対応しました。
無料ユーザー向けに広告表示を追加し、Proユーザーは広告なしで利用できるようにしました。

文章チェック結果、Pro導線、履歴、設定画面の表示を改善しました。
安定性と内部処理を改善しました。