Comparison

Headspace vs Letters

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

Head to head
About

Headspace

This app offers a unique 3D approach to organizing thoughts and creating hierarchical outlines. Visualize your information in a floating space, navigate with intuitive gestures, and connect related ideas with visual links. It's designed for a dynamic and engaging way to manage lists and mind maps.

Highlights
  • Build hierarchical outlines in 3D space
  • Navigate and zoom with familiar finger gestures
  • Connect related items with link lines
  • Change item color and opacity
  • Universal app for iPhone and iPad
  • Sync files with Dropbox
  • PDF export with active note links
Features
Read full description

*** PLEASE NOTE: This NOT the meditation app! *** (There is another app called "Headspace: Guided Meditation and Mindfulness" and this is NOT that app!) This is the *original* Headspace! HEADSPACE is iOS's coolest 3D outliner and mind-mapping app! Do your list-making and mind-mapping in 3D space with the *original* Headspace. "Five stars on iPhone, completely off the scale on iPad" "This is the app I've most wanted to run on the iPad since the day it was announced, and the app that anyone looking over your shoulder will immediately want to buy an iPad just to run. " "Love the program. Favorite app. Useful and looks great. " "The implementation is beautiful! In my opinion, Headspace is becoming one of the best apps in the store." "I bought Headspace last night on a whim - been fooling around with mindmapping apps lately. This is a little piece of brilliance, you know that, right? " "This app could not just be a mindmapping program, It has the capability to become a new kind of U.I. That in my opinion that improved over apples U.I." Headspace allows you to create items and groups of items on a floating plane in three-dimensional space. The hierarchy of items and their various sub-items make for a beautiful display of information as they recede into the distance. Simple and familiar finger gestures allow you to move around the space. Use the menu button to travel between various groups. Easily create links and travel between them. The beautiful animated interface is like something from a sci-fi movie, but it isn't just eye-candy. You can go from an "eagle-eye" view of your entire map to focusing on a single item with a simple pinch of your fingers. There's just something about being able to manipulate the scale and space that goes perfectly with the idea of outlining. Here's a rundown on all its cool features: ● build hierarchical outlines in 3D space ● use familiar finger gestures to navigate and zoom ● connect related items with link lines - even between files! ● change item color and opacity ● change text color ● 'Flick' up or down to travel to top or bottom of lists ● special characters and foreign-language support ● universal app -- runs on both iphone and ipad ● easy travel between groups and files ● cut-and-paste items ● search in spaces, notes, and files ● item notes for supplemental information (text/photo/url) ● optional accelerometer rotate ● customizable color palette ● "to-do" style item checkboxes ● 2D orthogonal mode ● sync files between your iphone and iPad with Dropbox ● file support for Freemind, the free multi-platform desktop mind-mapping program ● stunning PDF export w/ active note links Get some perspective on your thoughts. Try Headspace today! Let us know what else you'd like to see added, email headspace@flatblackfilms.com!

About

Letters

Organize and read all your subscribed newsletters in one clean, dedicated space outside your inbox. It automatically finds your newsletters and keeps your reading data private on your device.

Highlights
  • Organize all newsletters
  • Automatic newsletter detection
  • Clean reading environment
  • Offline access
  • Read/unread tracking
  • Search across all newsletters
Features
Read full description

You subscribed to 30 newsletters. You're reading 3. The rest are buried in your inbox — unread, forgotten, quietly becoming guilt. You keep meaning to get to them. You don't. Letters is built for this exact problem. Connect your inbox and in under 60 seconds, Letters reveals your complete newsletter library — every publisher you've subscribed to, organised and ready to read. Outside your inbox. Without the noise. —— BUILT DIFFERENT: YOUR DATA STAYS ON YOUR DEVICE Most email apps pass your data through their servers. Letters doesn't. Your newsletters are processed and stored locally on your device only. We connect via secure OAuth. No emails stored on our end. No data sold. No backend that knows your reading habits. For professionals who handle sensitive information — this matters. —— WHAT YOU GET • Your complete newsletter library — every publisher, instantly visible • Auto-detection: Letters finds your newsletters, you don't hunt for them • Clean reader built for long-form content, not quick email scanning • Offline access — read on flights, commutes, anywhere • Read/unread tracking so nothing gets missed • Search across everything you've ever received —— WHO LETTERS IS BUILT FOR Professionals who read newsletters seriously: — VCs and investors tracking market intelligence across 20+ sources — Consultants who need to stay sharp across industries without inbox chaos — B2B marketers monitoring trends and competitor content — Anyone who subscribes intentionally and wants to actually read what they chose —— Letters is not an email app. It's not a feed. It's the reading environment your newsletters always deserved. Free to download. Your library is ready in under 60 seconds. ____ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Headspace4 screens
Letters4 screens

Verdict

The call

The clearest difference is review sentiment: Headspace at 71% against Letters's 0%. Headspace also leads on in-app purchases (none vs 3) and iOS requirement (9.0 vs 15.0). Letters's advantage is price (Free vs $3.99) and update cadence (every 2 weeks vs every 2 months). On 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

CostPrice · In-app purchases · Ads · Monetization

Letters is free to download; Headspace costs $3.99 up front. Letters sells 3 in-app purchases, starting at $2.99 per month. Headspace asks for nothing beyond the download.

UpkeepUpdate frequency

Headspace ships an update every 2 months, Letters every 2 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Headspace versus Letters: the parameters behind the verdict, then further details
ParameterHeadspaceLetters
Price$3.99Free — better
Rating4.4 (10 ratings) — better—
Positive reviews71.4% of reviews — better0.0% of reviews
Number of ratings10 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size19 MB141 MB
Age rating4+9+
DeveloperFlat Black FilmsRishab Jaiswal

Customer experience

Headspace

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews182 reviews
Positive71.4%
Neutral12.6%
Negative15.9%

Letters

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

Headspace

Reported bugs

15 issues
  • App crashes on creating new groups
  • Crashes when entering text on iPad
  • Text color picker fails to change colors
  • Instant crash when closing text color picker
  • Crashes on Dropbox connection
Show 10 more
  • Data loss with file format updates
  • Existing links lost after updates
  • Screen flickers between files
  • Text display issues after multiple app launches
  • Color brightness settings lost
  • Keyboard popup without dialog box
  • Accelerometer causes erratic screen movement
  • Incompatibility with iOS/iPadOS updates
  • Performance lag with large maps
  • Syncing issues between devices

Requested features

24 requests
  • Desktop/Mac version for syncing
  • iCloud syncing between iOS devices
  • Google Drive and OneDrive support
  • Evernote integration
  • Ability to drag items between groups
Show 19 more
  • Undo functionality
  • Export to email directly
  • Different arrow/connector styles
  • OPML export format
  • Reminders and deadline notifications
  • Different text box shapes
  • Photo/image import and support
  • Web-based version
  • Ability to move items outside groups
  • Simpler gesture controls for text entry
  • List view option
  • Icons and visual indicators for content types
  • Advanced search functionality
  • Child count indicators on parent nodes
  • Customizable 3D graphics
  • Movie recording with preset paths
  • Structured data visualization capabilities
  • Automatic color selection for new groups
  • Bullet points for children items

Letters

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Headspace

No in-app purchases

3 purchases

Letters

Subscriptions2
  • Letters Pro | Monthly Plan7 Days trial$2.991 Month
  • Letter Pro Yearly1 Month trial$29.991 Year
One-time1
  • Letters Pro Lifetime$149.00

Questions

Is Headspace free?
Headspace costs $3.99, with no in-app purchases.
Is Letters free?
Letters is free to download, with in-app purchases available.
Do Headspace or Letters have ads?
Neither Headspace nor Letters shows ads.
Which is updated more often, Headspace or Letters?
Headspace ships an update every 2 months, and Letters every 2 weeks. Most recently, Headspace was updated on November 6, 2026 and Letters on November 5, 2026.

Other comparisons