Comparison

Tree Notebook vs EZ Outliner

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

Head to head
About

Tree Notebook

Organize personal information with a hierarchical notes manager. Structure data into a tree-like hierarchy of folders and notes, with options for public and encrypted private sections. Features include powerful search, customizable item appearance, and event reminders.

Highlights
  • Tree-like hierarchical organization
  • Public and encrypted private data sections
  • Attachments (images, files)
  • Multiple data views (tree, list, favorites, history)
  • Powerful search capabilities
  • Customizable item appearance
  • Event reminders and calendar
Features
Read full description

Tree Notebook is a hierarchical notes manager designed for keeping personal information. Tree Notebook runs on an iOS device (iPhone or iPad). Besides, there is a counterpart for OS Windows which can be synchronized with up to three iOS devices via a local Wi-Fi network. No access to Internet is needed for synchronizing. The data in Tree Notebook is divided in two parts: the public part accessible without password and the encrypted private part which requires password for opening. The data in every part is arranged as a tree-like multilevel hierarchy of folders and notes. Any folder can include notes and other folders, and so fourth. Any item (a note or a folder) can include text of any size. The items can keep attachments like images or other files. The app can represent data in several ways: as a tree, as a list of items (folders and notes) on the current level, as a list of manually selected items ("Favorites"), or the items visited recently ("History"). The contents of an individual item can be viewed or edited. Tree Notebook includes powerful search facilities: simplified or conditional global search, local search inside an item text. The items can be sorted by several criteria: alphabetically, by creation or modification time, and in manually defined order. The item titles can be attributed using a variety of font types, colored flags, graphic icons. Any item can have an Event attribute and serve as an alarm clock or reminder. A calendar feature is available to help managing events. The app is free to use both on iOS devices and desktop PC.

About

EZ Outliner

Create and organize outline documents from any device. This app supports unlimited outlines, color-coding, and printing. Sync your work across devices with an account for seamless access anywhere.

Highlights
  • Unlimited outline creation
  • Color-coded organization
  • Printable outlines
  • Cross-device syncing
  • Versatile use cases (lists, plans, speeches)
Features
Read full description

EZ Outliner aims to be a simple yet easy to use outliner application, allowing you to create powerful and easy to read outline documents from any device, anywhere. Use EZ Outliner to create shopping and grocery lists, plans, schedules, outline speeches and presentations, to do lists, or anything else which takes the format of an outline. EZ Outliner currently contains everything you need to create basic outlines, but I will expand and add more based on user requests and feedback. Here is just a list of some of the things EZ Outliner can already do. - Create a virtually unlimited number of outlines for every use case and occasion! - Color code your outlines for better organization. - Print your outlines, from any device! Properly formatted outline printing is supported on all devices, as long as a printer is available. - Sync your outlines between devices. If you sign in with an Ape Apps account, you can sync your outline files across all of your devices. Work on a grocery list or presentation at home, then pull them up on your phone when you need them! The goal of EZ Outliner is to be quick and easy to use. If there are features you would like to see added, or if you can think of changes that will improve the app, e-mail me or let me know in the comments. This app is for you guys, so help me make it the best it can be!

Screenshots

Tree Notebook4 screens
EZ Outliner3 screens

Verdict

The call

The clearest difference is rating: Tree Notebook at 4.4 against EZ Outliner's 3.7. Tree Notebook also leads on in-app purchases (none vs 1) and ads (none vs shown). EZ Outliner's advantage is update cadence (every 7 months vs every 25 months). On price, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. EZ Outliner sells 1 one-off in-app purchase. Tree Notebook asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Tree Notebook holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 5 and 3 respectively.

UpkeepUpdate frequency

Tree Notebook ships an update every 25 months, EZ Outliner every 7 months. The most recent releases landed on September 30, 2026 and September 25, 2026 respectively.

Scorecard6 real differences · 4 level
Tree Notebook versus EZ Outliner: the parameters behind the verdict, then further details
ParameterTree NotebookEZ Outliner
PriceFreeFree
Rating4.4 (5 ratings) — better3.7 (3 ratings)
Positive reviews—0.0% of reviews
Number of ratings5 — better3
Update frequencyEvery 25 monthsEvery 7 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size12 MB9 MB
Age rating4+4+
DeveloperLena PankratovaBrandon Stecklein

Customer experience

Tree Notebook

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%

EZ Outliner

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews5 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Tree Notebook

No in-app purchases

1 purchases

EZ Outliner

One-time1
  • EZ Outliner Premium$7.99

Questions

Is Tree Notebook free?
Tree Notebook is free to download, with no in-app purchases.
Is EZ Outliner free?
EZ Outliner is free to download, with in-app purchases available.
Which has better reviews, Tree Notebook or EZ Outliner?
Tree Notebook is rated higher. Tree Notebook averages 4.4 out of 5 from 5 ratings, while EZ Outliner averages 3.7 from 3 ratings.
Do Tree Notebook or EZ Outliner have ads?
EZ Outliner shows ads; Tree Notebook does not.
Which is updated more often, Tree Notebook or EZ Outliner?
Tree Notebook ships an update every 25 months, and EZ Outliner every 7 months. Most recently, Tree Notebook was updated on September 30, 2026 and EZ Outliner on September 25, 2026.

Other comparisons