Checknights vs OS Translator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Checknights
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Checknights는 '명일방주'의 비공식 어시스턴트 앱입니다. 주요 기능: 이벤트 정보: 현재 및 예정된 이벤트 정보와 획득 가능한 재료를 확인할 수 있습니다. 재료 필터링: 원하는 재료를 쉽게 찾고 관련 이벤트를 확인할 수 있습니다. 이성 관리: 현재 이성 수치를 저장하고 자동으로 회복 시간을 계산해 170에 도달했을 때 알려줍니다. 훈련 교체 타이머: 아이린/로고스 교체 시간을 계산하고 교체 시간 10분 전 알림을 통해 잊지 않게 도와줍니다. 각종 계산기 : 공개채용, 육성 자원, 남은 가챠 수 계산기를 제공합니다. 위젯 : 위젯을 통해 모든 내용을 편하고 쉽게 확인 가능합니다. 이 앱은 게임 서버와 직접 연동되지 않으며, 닉네임은 단순 식별자로만 사용됩니다. 모든 계산과 타이머 기능은 로컬 및 전용 서버에서 이루어져 게임 계정 보안에 영향을 주지 않습니다.
OS Translator
Instantly translate text on your screen while using other apps. It supports games, comics, and online shops, displaying translations in a Picture in Picture window. Choose between mirroring the original text or viewing translations as a list.
- Live on-screen translation
- Picture in Picture window
- Mirror mode for text overlay
- Subtitles mode for dialogue lists
- Offline translation support
- Supports 20 languages
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The translation, right where the original text was. Play a Japanese game, read a Chinese comic or browse an overseas shop, and OS Translator reads the text on your screen and translates it on the spot. While you use any other app, OS Translator reads your screen and shows the translation in a Picture in Picture window. When the screen changes, the translation follows within about a second. No screenshots, no copy and paste. TWO WAYS TO READ • Mirror mode — Place the PiP window at the top or bottom of the screen, and it mirrors the other half with the translation laid over the original text. Speech bubbles and product pages read just as they look. • Subtitles mode — Game dialogue, menus, chat and captions burned into videos appear as a list in the PiP window, starting with the paragraphs closest to what you're reading. • On iPad, put another app next to OS Translator in Split View or Stage Manager. The app mirrors it and lays the translation right over the original text. HOW IT WORKS • Pick the language to read and tap Start Translating. • Share your entire screen when iOS asks, then go to your game, comic or app. • Move and resize the translation window as you like. Stop anytime from the app or the screen recording indicator. GREAT FOR • Dialogue and quests in Japanese games • Manga, webtoons and web novels that haven't been translated yet • Product names, options and details in overseas shops • Social media and forums in other languages • Captions burned into videos ALSO • Reading direction for vertical manga • Choose whether to show the original text • Recent Translations keeps what you read so you can view and copy it again EVERY FEATURE FREE No limits on time or number of translations, and every feature is free. A short ad may play before you start translating. The only purchase is Remove Ads — buy once and it's yours for good. TRANSLATED ON YOUR DEVICE Reading the screen and translating both happen on your device with Apple's built-in text recognition and translation. What's on your screen is never sent anywhere or saved. Once a language is downloaded, translation works even in Airplane Mode. LANGUAGES Translate between 20 languages, including English, Japanese, Korean, Chinese (Simplified and Traditional), Spanish, French, German, Portuguese, Russian, Arabic, Hindi, Thai, Vietnamese and more.
Screenshots
Verdict
The clearest difference is in-app purchases: Checknights at none against OS Translator's 1. Checknights also leads on ads (none vs shown) and iOS requirement (17.6 vs 27.0). On price, update cadence 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
Both are free to download. OS Translator sells 1 one-off in-app purchase. Checknights asks for nothing beyond the download.
Checknights ships an update fortnightly, OS Translator every 8 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | Checknights | OS Translator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly | Every 8 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.6 — better | 27.0 |
| Further details — not scored | ||
| Size | 15 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Sangwoo Han | Sunghyun Kim |
In-app purchases
Checknights
No in-app purchases
OS Translator
- Remove Ads$3.99









