*Used by over 1 million people around the world
*Best free journal in any app store
*Syncs to the web and other mobile platforms for free

Penzu is the most popular free diary, journal and notepad. It’s the best place to keep your most private thoughts safe and secure. Sync your journals to Penzu where your notes are accessible from almost any device in the world. So simple and fun that you’ll leave your paper diary behind!


*Unlimited journaling
*Sync journals with Penzu cloud for free
*Customize your journal covers
*Lock journals with a password
*Encrypt your journals
*Add photos
*Lock app with a PIN
*Search journals
*Add tags
*Write offline
and more...


Penzu is a diary and personal journal that is focused on privacy. With a unique and compelling user experience, it makes writing online as easy and intuitive as writing on a pad of paper.


Your journal and your thoughts aren’t always meant to be shared — some things are supposed to be private! Use Penzu to jot down whatever you want. Then lock your journal with a password (or even encryption) so no one can read it but you! Furthermore, you can lock the entire app with a PIN in the event that someone gets access to your mobile device.


Unlike other journal apps, Penzu has a web-based counterpart. So you can access your journals and diary from any web browser and other devices. Penzu is constantly being updated and improved so that the writing experience is effortless and reliable.


This app is free to download but requires a free Penzu account in order to start writing.

Upgrading to Penzu Pro is available for a small monthly or yearly subscription. Your subscription will auto-renew unless you cancel manually. Monthly subscriptions are $4.99 USD and renew every month. Yearly subscriptions are $19.99 USD and renew every year.

You can see our privacy policy here:
You can read our terms of use here:

What’s New

Version 3.5

Bug fixes and optimizations for latest devices

Ratings and Reviews

4.3 out of 5
1.5K Ratings

1.5K Ratings

Conradsk ,

Updated Review: Penzu now an old friend.

I've now had Penzu for several years. Perhaps you also have downloaded scores of apps to try, but eventually deleted when they didn't live up to their hype; in my case, I have just kept coming back to Penzu, and now find using it to provide some of the most pleasant minutes of my hectic days. Penzu's ease of use have made me more regular in my journal-keeping, and I now use it to record all sorts of things (Drucker said, that which is measured gets done. So I use Penzu as my place to record the measurements of the important things underway in my life. Simple; effective).

I note with sad bemusement that Penzu suffered a "single star" rating from someone who accidentally erased her own journal, despite the warning message she acknowledges. Poor, poor dear. I think my next journal entry will be about this lamentable trend of blaming others for one's own foolish mistakes.

Highly recommended. I now use for everything I need to track: weight, exercise, productivity, lists, projects, and oh yes, I still keep a journal. Great app!

Bramante68 ,


I have been using this app for many years but there have been a number of glitches, including not syncing up with multiple devices. The most recent issue, which is why I rated it a one, is that I literally cannot add anything into a journal on any of my mobile devices. I paid the premium fee, I contacted customer service, and all they’ve been able to do is ask me questions about ridiculous things that of course anyone would have done. Did you update the app? Did you delete the app and reload it? Of course. And yet the app doesn’t work on my any mobile device. If you add text to a journal it simply does not save. The only way to update any entry or have any new entry be saved is to go onto your computer, add your journal entry there and then you will see it on your device. This is archaic and ridiculous. I have also lost countless entries until I realized that nothing was getting saved on my iPad. The only response they’ve given me is that at some point they are going to give us an updated app. That’s extremely unhelpful. I’m going to switch over to a different online journal today and stop my premium subscription to Penzu. I suggest anyone who is considering downloading this app for the first time not do it until they fix whatever this problem is that literally destroys your ability to use their app on the go. For anyone who does extensive journaling, not being able to do it on your mobile app is ridiculous.

nthpete ,

Crashy and too many emails

Every time I tap on the calendar icon in an entry the app crashes on my iPhone 12 Pro Max. Every. Time. Even tried uninstalling/reinstalling and the issue persisted. I am often up after midnight and need to write about the previous calendar day. So this is kind of a dealbreaker for me.

If that wasn’t enough, I’ve gotten 4 emails from the Penzu service in 2 days and there is no easy way to opt out of them. There is no unsub link in the nag emails and no “unsub all” link in the other emails—so you have to log in to the service to opt out of everything. You can unsub all from the unsub link but the UI doesn’t make it obvious at all. What’s even worse is that when you log in via the “manage email preferences” link on your phone it says “This page cannot be accessed via mobile. Please download our free mobile app or try again from your computer.” What is this company thinking? Just trying out this app has become a much bigger hassle than it’s been worth considering I deleted it within an hour of installing it. It feels like the developers of this app need to consider the customer experience more. Or the non-customer experience in this case. Now that I have opted out of these emails I am not looking back.

App Privacy

The developer, Penzu Inc., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


Penzu Inc.
99.7 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Penzu Pro Subscription $4.99
  2. Penzu Pro Subscription $19.99
  3. Penzu Pro Upgrade $18.99


  • Family Sharing

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

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