iPhone Screenshots


Chat records are probably the most sensitive information on a smartphone, so why do we not treat them accordingly? ChatLock is an archive with many exciting features and possibilities! In other words, it's YOUR archive for all your private conversations.

But there is still more to it! Use the built-in statistics to find out interesting and funny details about your imported WhatsApp-Chats: Which Emojis do you like most and who responds the fastest? Find out now!

Important information: Please note that ChatLock does not expand an existing app, and only provides the following features to your previously imported chats! ChatLock is an archive and only protects imported copies of your original chats. Further information can be found at the end of this text.

Nobody should have access to your conversations, except you. Therefore, your archive exists only once: on your device. No servers, no clouds, no risk.

Due to the intelligent import process into ChatLock, it’s child’s play to save and protect your chats. Securing all your chats in one place becomes a matter of minutes thanks to the ChatLock archive.

Import messages, pictures and videos directly into ChatLock!

Protect your imported archive by choosing a personal passcode. Moreover, you can unlock your archive by using Face ID (iPhone X) or Touch ID.

ChatLock will save everything locally on your device to ensure the highest protection of your data. No one can access your data - except you.

Analyze the chat behavior of you and your friends. - Statistics allows you to find out everything you want to know about your previously imported chats:

● Emoji: Which Emojis you and your friends use the most, and who is the real master of Emoji?
● Activity: Breakfast? Lunch? Dinner? Which is your favorite time, to chat with your friends?
● Conversations: Who responds the fastest and who need a bit of time?
● Messages: Novel or one-liner? Which type are you?
Find out now!

Export your imported chats including all your statistics! ChatLock files are encrypted (AES), so they can only be re-imported by you.

We always have an open ear for you! For questions, bugs or new exciting ideas for our app, please write an email to chatlock@email.de . We will contact you back as quickly as possible.

Some features are only available in the full version. To unlock them, a one-time purchase is required.

Please note that ChatLock does not expand an existing app, and only provides the following features to your previously imported chats! ChatLock is a stand-alone app that only protects your ChatLock-Archive and the imported chats it contains. Please note: The original WhatsApp chats will not be protected and will remain unprotected in WhatsApp!!
Your imported chats are stored locally on your iPhone. There is no connection to any server. The protection of your private data is our highest priority. More detailed information can be found in our Privacy Policy.

--- Disclaimer ---
Unofficial Product. This app is developed solely by me, Stefan Liesendahl, an independent developer and it has no relation with an existing app or the original „WhatsApp Messenger“ from WhatsApp Inc.

„WhatsApp Messenger“, its name, trademark, and other aspects of the app are trademarked and owned by their respective owners.

The trademark holders are not affiliated with this app „ChatLock“. They do not sponsor or endorse this app or any of our products.

If you have questions about this Legal Disclaimer or do you believe that there has been disregards of your proprietary rights, do not hesitate to contact me!

What’s New

Version 1.5.7

Good news! From now on ChatLock will no longer contain any ads!

Thanks for your incredible feedback! We are always looking forward to hear from you! Send us an e-mail or visit our new Facebook page. See you soon!

Ratings and Reviews

4.0 out of 5
11 Ratings

11 Ratings

Veliki strumf ,

Good chat protection

It’s very easy and simple to import my chats. Have interesting statistics and most important is that my chats are safe and protected.

cmaster64 ,

Does it’s job

Keeping my sensitive chats secured from intruders. Nice futures, especially export/import option.

Korenynthia ,


Makes it seem like you will be able to access your videos and pictures, but then wants you to pay for them. Uh, no thanks. I’ll just save it to my phone. False advertising


Stefan Liesendahl
11 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German

Age Rating
In-App Purchases
  1. ChatLock PLUS $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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