# KeigoScan: Politeness Checker — Check keigo before you send

> Check keigo before you send (iPhone/iPad app by 丽佳 施.)

- Source: https://appshunter.io/ios/app/keigoscan-politeness-checker/id6796890243 (this page in markdown: same URL + `.md`)
- Developer: [丽佳 施](https://appshunter.io/developer/1894580777)
- Category: Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English, Japanese
- Released: 2026-08-07
- Data updated: 2026-08-12
- User reviews in markdown: https://appshunter.io/ios/app/keigoscan-politeness-checker/id6796890243/reviews.md

## What is KeigoScan?

“Is this keigo correct?” Ten seconds before you hit send, turn anxiety into confidence.

Paste an email or chat message (or load a screenshot) and get a rudeness score from 0 to 100, plus exactly what to fix, where, and why. Everything runs in a rule engine on your device — your text never leaves it.

■ Rudeness score (0-100)
A dictionary of 40 real keigo mistakes — double honorifics, mixed-up humble and respectful forms, casual “baito keigo”, business NG phrases, excessive politeness, plain casual speech — plus five email-manner checks. Three bands (safe / caution / danger) tell you at a glance whether it is ready to send.

■ Recipient-aware judging
Choose client, boss, or colleague, and the strictness adjusts. The same message can be fine for a colleague and risky for a client — now you can see it.

■ Every issue explained
Each mistake is highlighted with a suggested fix, a one-line reason, and a category tag, so your keigo actually improves.

■ Corrected full text, one tap to copy
The app generates a corrected version of the whole message. Copy, paste, done.

■ Screenshot input
Pick a screenshot of LINE or a mail app, and on-device text recognition reads it. Images never leave your device.

■ History
Scans are saved automatically so you can review your recurring habits.

■ Privacy
- All checks run entirely on your device; works offline
- No account required

■ About ads
A small banner appears at the bottom. A one-time “Remove Ads” purchase ($0.99, no auto-renewal) hides it forever. No feature limits either way, and no subscriptions.

For new hires, career changers, and anyone writing to clients: make the ten seconds before sending a habit of confidence.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-07

No release notes.

## More apps by 丽佳 施

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- [Ember — Private Diary](https://appshunter.io/ios/app/ember-private-diary/id6769777961)

All apps by 丽佳 施: https://appshunter.io/developer/1894580777

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*