락키보드 vs 100 Chestnut
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
락키보드
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Lockey (Password-generated keyboard) This is a keyboard customized for iOS. Instant keyboard and encryption function are added to the regular keyboard that you can use all the time. Security has been enhanced for the transmission of plain text and images. 1. Supports various Korean keyboards. -QWERTY, assorted, Cheonjiin, Narrat, Vega keyboard support. -Korean, English, and special symbols are supported. -Long click special symbol input function. -The keyboard in landscape mode is extended to suit the situation. 2. You can select the keyboard touch effect and theme. -When you touch, you can select the balloon effect or the over effect. -Keyboard color theme selection -Select key size (in preparation) 3. You can switch between Korean and English keyboards by swiping the keyboard left or right. 4. Instant web search with the entered string -After inputting the string you want to search, press the search button to instantly view the web search results with the built-in browser. -You can easily get various search results through Google, Naver, Daum, and YouTube. -The searched site address is immediately delivered to the app in use through the share button. -Full browser functionality. 5. Encryption function -Encrypted text can be encrypted using the AES encryption technology-based encryption method. -Compatible with passwords of other platform users' lockkey users. -Special password can be diversified through private key. -By using Link Plus, passwords can be transmitted with links. -You can encrypt and send the album image or the captured image. 6. Product and Glossary -Super Pack: A product that provides the function to encrypt the long text, image, and link plus functions -Ultra Pack: Private key setting function + Super Pack -Link Plus: Lists the latest contents of over 50 selected blogs and provides them as links -Private key: A function that allows the user to directly specify the key value used when encrypting text to separate the encryption / decryption user environment. Encrypted sentences are normally decrypted only if the same private key is set. * In-app purchase products (Super Pack, Ultra Pack) retain their functions for one year from the date of purchase.
100 Chestnut
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The 100 Chestnut app is your passport to the building and everything it has to offer. The app allows you to see upcoming events, book amenities like meeting rooms, manage visitors, discover local perks, and much more.
Screenshots
Verdict
The clearest difference is in-app purchases: 100 Chestnut at none against 락키보드's 2. On price, update cadence, ads 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. 락키보드 sells 2 one-off in-app purchases. 100 Chestnut asks for nothing beyond the download.
락키보드 ships an update every 9 days, 100 Chestnut fortnightly. The most recent releases landed on October 15, 2026 and October 19, 2026 respectively.
| Parameter | 락키보드 | 100 Chestnut |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 24 MB | 170 MB |
| Age rating | 4+ | 4+ |
| Developer | UI CHAN HONG | 100 Chestnut |
In-app purchases
락키보드
- SuperPack(Text+Image+LinkPlus)$0.99
- Ultra Pack (Super+Private key)$8.99
100 Chestnut
No in-app purchases









