Post vs DrumGoat
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!
DrumGoat
This app challenges and reinforces drummers' audio-visual memory of drumming rudiments. It makes learning the fundamental patterns of drumming simple, fun, and fast.
- Audio-visual memory training
- Rudiment reinforcement
- Simple and fast learning
- Fun drumming practice
- Essential drumming alphabet
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DrumGoat helps drummers by challenging and reinforcing the audio-visual memory of rudiments - the “alphabet” of drumming - while making it simple, fun and fast.
Screenshots
Verdict
The clearest difference is update cadence: Post at every 2 months against DrumGoat's every 39 months. Post also leads on chart position (#182 vs unranked) and iOS requirement (10.0 vs 15.0). DrumGoat's advantage is price ($1.99 vs $4.99). On review sentiment, ads, in-app purchases and monetization model 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
Post costs $4.99 and DrumGoat $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Post ships an update every 2 months, DrumGoat every 39 months. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.
| Parameter | Post | DrumGoat |
|---|---|---|
| Price | $4.99 | $1.99 — better |
| Rating | 4.3 (6 ratings) — better | — |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| Number of ratings | 6 — better | — |
| Update frequency | Every 2 months — better | Every 39 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #182 — better | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | A Squared Applications | John Taylor |
Customer experience
Post
DrumGoat
In-app purchases
Post
No in-app purchases
DrumGoat
No in-app purchases
