Comparison

Post vs Henle Library

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

Head to head
About

Post

This app provides tools for analyzing post-tonal music, including pitch-class set and tone row calculations. It helps users identify Forte names, normal forms, prime forms, and relationships within musical sets.

Highlights
  • PC Set Calculator
  • Subset/Superset Calculator
  • Matrix Calculator
  • Forte name analysis
  • Normal form calculation
  • Prime form identification
  • Tone row analysis
Features
Read full description

The Post-Tonal Tool Kit is designed to be a one-stop app for pitch-class and tone row analysis of post-tonal music. Features include a PC Set Calculator, a Subset/Superset Calculator, and a Matrix Calculator. –This app is perfect for the music theory student analyzing post-tonal music. –This app is also designed for the classroom and pedagogical uses. * With an Apple Dock Connector the screen can be projected in the classroom. * Analytical assignments can be designed to incorporate the features of the app that highlight relationships within sets and rows. The PC Set Calculator analyzes sets ranging from three to twelve pitches and provides: * Forte name * Normal form * Prime form * IC Vector * Z-Mate * Tn Invariance * TnI Invariance The calculator also will provide the inversion and complement sets with all the above information and all sets can be analyzed for subset and superset relationships (a very handy tool when analyzing Webern!). **WHAT’S NEW!!!** The Matrix Calculator will generate a matrix with any number of pitches up to twelve. The rows are numbered using the Straus/Roig-Francoli system (Introduction to Post-Tonal Theory/ Understanding Post-Tonal Music), where the P and I row labels correspond to the starting pitch class. Any number of pitch classes within the matrix can be highlighted and the selected set then sent back into the PC Set Calculator. This feature is extremely helpful when comparing trichords, tetrachords, and hexachords!

About

Henle Library

Access high-quality digital Urtext editions of classical music scores on your tablet. Practice, rehearse, and perform with a range of interactive features designed for musicians of all levels. Enjoy annotations, metronome, playback, and more.

Highlights
  • Digital Urtext editions
  • Customizable score purchases
  • Print and export PDFs
  • Score modification and annotations
  • Metronome and recording
  • Part and score switching
  • Explanatory notes access
Features
Read full description

“With the Henle Library app a new era begins for classical musicians.” Daniel Hope An indispensable app for professional musicians, amateurs, students and teachers. The Henle Library app delivers G. Henle Publishers’ reliable Urtext editions straight to your tablet. You can practise, rehearse and make music – whenever and wherever you like. And you can enjoy the many unique features of Henle’s digital scores.  Features: - Filter Henle Urtext according to your individual needs and purchase as required (individual part, single movement, bundles etc.) - Free version available for music students (licences for music colleges) - Print, export PDFs, share - Modify the score to suit your needs - Superimpose alternative professional fingerings (or choose “No fingerings”) - Unlimited possibilities for your own annotations - Easily switch between the part and the score at exactly the same measure - Open explanatory notes (footnotes, Critical Report etc.) at the appropriate place in the score - Record and play back your own recordings - Use the integrated metronome - Navigate extremely rapidly - Create and use playlists Do you like our app? Please consider writing a review. Thank you!

Screenshots

Post4 screens
Henle Library4 screens

Verdict

The call

The clearest difference is price: Henle Library at Free against Post's $4.99. Henle Library also leads on ratings volume (94 vs 6). Post's advantage is rating (4.3 vs 3.0) and in-app purchases (none vs 10). On 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

CostPrice · In-app purchases · Ads · Monetization

Henle Library is free to download; Post costs $4.99 up front. Henle Library sells 8 one-off in-app purchases. Post asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Post holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: Henle Library has 94 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 50% of Post's written reviews are positive against 35% of Henle Library's.

UpkeepUpdate frequency

Post ships an update every 2 months, Henle Library every 3 months. Both last shipped on November 6, 2026.

Scorecard7 real differences · 3 level
Post versus Henle Library: the parameters behind the verdict, then further details
ParameterPostHenle Library
Price$4.99Free — better
Rating4.3 (6 ratings) — better3.0 (94 ratings)
Positive reviews50.0% of reviews — better34.7% of reviews
Number of ratings694 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better15.0
Further details — not scored
Size1 MB54 MB
Age rating4+4+
DeveloperA Squared ApplicationsGuenter Henle Verlag

Customer experience

Post

All ratings6 ratings
Positive83.3%
Neutral16.7%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Henle Library

All ratings94 ratings
Positive39.4%
Neutral18.1%
Negative42.6%
Written reviews193 reviews
Positive34.7%
Neutral21.8%
Negative43.5%

Bugs and requests

Post

Not enough reviews yet to summarise bugs or requests.

Henle Library

Reported bugs

20 issues
  • Annotations deleted after app updates or restarts
  • Eraser function fails to remove marks consistently
  • Marks don't record when crossing between staff lines
  • App crashes when opening purchased scores
  • Purchased scores disappear from library
Show 15 more
  • Blank pages appear when turning pages
  • App freezes during export to PDF
  • Infinite loading screen in online store
  • Confirmation emails for credit purchases don't arrive
  • App takes 40+ seconds to start
  • Scores don't load immediately after purchase
  • Annotation dots appear randomly when lifting pen
  • Fingering annotations shrink in upper ledger lines
  • Score skips to random pages during performance
  • Export PDF quality is low resolution and fuzzy
  • Annotation layer prevents writing in certain areas
  • Zoom function jumps back to start of page
  • Eraser requires tapping far from annotation to delete
  • Palm rejection fails with Apple Pencil
  • Print layout produces single-line pages for multi-movement pieces

Requested features

20 requests
  • Undo/redo functionality for annotations
  • Ability to print entire multi-movement pieces together
  • Half-page turning option for performers
  • Playlist or collection grouping system
  • Individual score parts (not just full scores)
Show 15 more
  • Better annotation layer management
  • Improved Apple Pencil support and sensitivity
  • Customizable eraser behavior
  • Page turn animation or visual cues
  • Ability to hide specific staves or parts
  • Microphone-activated page turning commands
  • Difficulty ratings visible before purchase
  • Digital-physical score bundling/discounts
  • Better search and filtering in store
  • Support for foot pedal page turners
  • Ability to import scores from other sources
  • Multiple annotation layers with visibility toggle
  • Customizable metronome settings
  • Landscape orientation improvements
  • Persistent user settings and preferences

In-app purchases

None

Post

No in-app purchases

8 purchases

Henle Library

One-time8
  • 10 Credits$0.99
  • 22 Credits$1.99
  • 55 Credits2 variants$5.99
Show 5 more
  • 100 Credits$9.99
  • 200 Credits2 variants$19.99
  • 300 Credits$29.99
  • 500 Credits$49.99
  • 1000 Credits$79.99

Questions

Is Post free?
Post costs $4.99, with no in-app purchases.
Is Henle Library free?
Henle Library is free to download, with in-app purchases available.
Which has better reviews, Post or Henle Library?
Post is rated higher. Post averages 4.3 out of 5 from 6 ratings, while Henle Library averages 3.0 from 94 ratings.
Do Post or Henle Library have ads?
Neither Post nor Henle Library shows ads.
Which is updated more often, Post or Henle Library?
Post ships an update every 2 months, and Henle Library every 3 months. Most recently, Post was updated on November 6, 2026 and Henle Library on November 6, 2026.

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