Post vs Henle Library
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- PC Set Calculator
- Subset/Superset Calculator
- Matrix Calculator
- Forte name analysis
- Normal form calculation
- Prime form identification
- Tone row analysis
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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!
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.
- Digital Urtext editions
- Customizable score purchases
- Print and export PDFs
- Score modification and annotations
- Metronome and recording
- Part and score switching
- Explanatory notes access
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“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
Verdict
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
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.
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.
Post ships an update every 2 months, Henle Library every 3 months. Both last shipped on November 6, 2026.
| Parameter | Post | Henle Library |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.3 (6 ratings) — better | 3.0 (94 ratings) |
| Positive reviews | 50.0% of reviews — better | 34.7% of reviews |
| Number of ratings | 6 | 94 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | A Squared Applications | Guenter Henle Verlag |
Customer experience
Post
Henle Library
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
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- 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)
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- 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
Post
No in-app purchases
Henle Library
- 10 Credits$0.99
- 22 Credits$1.99
- 55 Credits2 variants$5.99
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- 100 Credits$9.99
- 200 Credits2 variants$19.99
- 300 Credits$29.99
- 500 Credits$49.99
- 1000 Credits$79.99









