Comparison

RomajiConvert vs Kanji Lock

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

Head to head
About

RomajiConvert

Features
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Discover the power of RomajiConvert, the ultimate companion for swiftly converting Japanese text to Romaji and effortlessly translating it into English. Unravel the beauty of the Japanese language and bridge the linguistic gap with precision and ease. Key Features: Seamless Romaji Conversion: Seamlessly transform intricate Japanese characters into Romaji with a single tap. Decode Kanji, Hiragana, and Katakana into their phonetic forms, making reading and pronunciation second nature. Instant English Translation: Elevate your comprehension with lightning-fast English translations of Romaji text. Unlock a world of understanding as you effortlessly switch between languages. Text-to-Speech Brilliance: Immerse yourself in the auditory realm with our remarkable text-to-speech functionality. Hear your translated text come alive in crystal-clear audio, aiding pronunciation and enriching your language experience. User-Friendly Interface: RomajiConvert boasts an intuitive interface tailored for both beginners and language enthusiasts. Enter your Japanese text, convert, translate, and listen โ€“ all with a tap of your finger. Real-Time Conversion: Witness the magic unfold in real-time as your Japanese text morphs into Romaji. Immerse yourself in the speed and accuracy of instant translation. Sleek and Responsive Design: RomajiConvert's sleek design adapts seamlessly to all iOS devices. From iPhones to iPads, enjoy consistent performance and unparalleled convenience wherever you are. Embark on a journey of linguistic exploration with RomajiConvert. Whether you're a traveler, a student, or simply curious about the Japanese language, our app empowers you to grasp, speak, and comprehend with confidence. Download RomajiConvert now and unleash the true essence of Japanese language conversion and translation!

About

Kanji Lock

Features
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Learn kanji every time you reach for a distracting app. Kanji Lock turns everyday screen time into Japanese study time. When you try to open an app you've chosen to limit, a kanji quiz appears first. Instead of opening social media on autopilot, take a few seconds to practice Japanese. FREE FOR 3 DAYS, THEN SUBSCRIBE Try every feature free for 3 days. No account or payment is needed to start. After the free period, a monthly subscription is required to keep using Kanji Lock. LEARN JLPT KANJI Practice kanji across all JLPT levels, from N5 to N1. Choose the level that matches your Japanese ability and learn at your own pace. You can also add your own kanji to practice. MULTIPLE TYPES OF QUESTIONS Practice kanji through different question formats, including: โ€ข Reading โ€“ choose the correct reading โ€ข Meaning โ€“ identify the English meaning โ€ข Kanji โ€“ choose the correct kanji โ€ข Context โ€“ understand kanji in sentences and context SMART REVIEW Kanji you tend to miss come back more often, and the ones you know well appear less. New kanji are introduced at a steady pace. LEARN BEFORE YOU SCROLL Select apps you want to limit. When you try to open one, Kanji Lock puts a short learning moment between you and the distraction. No separate study session required. Your existing phone habits become opportunities to practice kanji throughout the day. TRACK YOUR PROGRESS Keep track of your learning activity and see how you're progressing over time. BUILT WITH PRIVACY IN MIND Kanji Lock uses Apple's Screen Time technology to manage selected apps. Kanji Lock does not see the names of the apps you select. Your learning data is stored locally on your device and is not uploaded to our servers. Kanji Lock collects only anonymous usage statistics, which you can turn off in Settings. TURN DISTRACTION INTO PROGRESS Whether you're preparing for the JLPT or simply want to improve your Japanese, Kanji Lock helps you practice a little more every day โ€” using time you were already spending on your phone. Open an app. Answer a kanji question. Keep learning. SUBSCRIPTION โ€ข Kanji Lock is free to download and free to use for 3 days. After that, a monthly auto-renewable subscription is required. The price is shown in the App Store and in the app before you subscribe. โ€ข Payment is charged to your Apple ID account at confirmation of purchase. โ€ข The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. โ€ข You can manage or cancel your subscription in Settings > Apple ID > Subscriptions. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://emuemutaro.github.io/kanjilock-privacy/

Screenshots

RomajiConvert4 screens
Kanji Lock4 screens

Verdict

The call

The clearest difference is in-app purchases: RomajiConvert at none against Kanji Lock's 1. RomajiConvert also leads on iOS requirement (16.4 vs 26.4). Kanji Lock's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Kanji Lock sells 1 in-app purchase, starting at $1.99 per month. RomajiConvert asks for nothing beyond the download.

UpkeepUpdate frequency

RomajiConvert ships an update every 2 months, Kanji Lock weekly. The most recent releases landed on October 13, 2026 and October 22, 2026 respectively.

Scorecard3 real differences ยท 3 level
RomajiConvert versus Kanji Lock: the parameters behind the verdict, then further details
ParameterRomajiConvertKanji Lock
PriceFreeFree
Update frequencyEvery 2 monthsWeekly โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS16.4 โ€” better26.4
Further details โ€” not scored
Size36 MB33 MB
Age rating4+4+
DeveloperAshen Ishanka CosthaAYA FUNAKI

In-app purchases

None

RomajiConvert

No in-app purchases

1 purchases

Kanji Lock

Subscriptions1
  • Premium$1.991 Month

Questions

Is RomajiConvert free?
RomajiConvert is free to download, with no in-app purchases.
Is Kanji Lock free?
Kanji Lock is free to download, with in-app purchases available.
Do RomajiConvert or Kanji Lock have ads?
Neither RomajiConvert nor Kanji Lock shows ads.
Which is updated more often, RomajiConvert or Kanji Lock?
RomajiConvert ships an update every 2 months, and Kanji Lock weekly. Most recently, RomajiConvert was updated on October 13, 2026 and Kanji Lock on October 22, 2026.

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