UDBapp Pro vs HMH Go
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UDBapp Pro
This app helps marching band members, directors, and teachers learn and manage drill formations. It offers animated drill views, coordinate sheets, music integration, and attendance tracking for seamless rehearsal and performance preparation.
- Animated drill views with music
- Individual coordinate sheets
- Live coordinate tracking
- Sheet music integration
- Attendance tracking
- Tap ID for performer management
- Offline mode
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Get the app used by hundreds of thousands of marchers, directors, and teachers around the world. Features for Students • Watch the drill animation while listening to the music from any perspective (performer or director). • View your individual coordinate sheet for sets in a song or counts in a set. • Follow your drill count by count with live updating coordinates. • UDB view shows curved and straight-line path information for previous and next sets. • Student leadership can access everyone’s drill information. • Learn and clean drill in seconds after it's been exported from Pyware by the designer. Features for Directors and Staff • Tap any performer to view coordinate and UDB view information. • Change field perspective (performer/director). • Easily add/delete/edit drill files in your ensemble's account directly from your app. • Learn and clean drill in seconds after it's been exported from Pyware by the designer. Sheet Music Integration • One tap access to Beam • Import music and scores from cloud services like Dropbox and Google Drive or take a picture. • Sync the drill and music with drill tabs. • Annotate music with integrated icons and helpful tools. Differentiators • Phone layout designed for one handed use • Easily find your midway points and yard line crossing counts • Easily switch between custom views Tap ID • Tap ID allows directors to see the performer labels that your students have selected. Simply tap on a performer's dot while viewing the drill to see their name and photo. Multiple students can select a single performer label so directors can easily see and manage alternates, shadows, and primary performers. Calendar + Attendance • See your full rehearsal and performance schedule, check-in to events, and track attendance throughout the season. • Use Live Attendance to get a real-time view of who is at rehearsal and who is not. Offline Mode • Offline mode allows a director to restrict access to Ultimate Drill Book if selected users are connected to the internet. If not activated, all users will be able to access Ultimate Drill Book even if connected to a WiFi or cellular connection.
HMH Go
This app provides K-12 students with on-the-go access to educational content from HMH's core curricula. It allows for offline learning, downloading materials, and utilizing media-rich features like read-along audio and annotations.
- Offline content access
- Downloadable learning materials
- Read-along audio
- Annotations and highlighting
- Bookmark functionality
- Content management and filtering
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HMH Go™ extends K-12 students’ learning beyond the classroom – offering on-the-go learning, regardless of device or connectivity. This app serves as a companion app to HMH’s core curricula on Ed: Your Friend in Learning® – allowing students to download HMH content and work offline. Simply use your HMH® user name and password to access intuitive, connected learning. Check out some of the ways HMH Go™ lets you enjoy a seamless, offline experience: • Provides select content from Ed: Your Friend in Learning® • Offers media-rich features including read-along audio, annotations, highlighting book-marking - online AND offline – with much more to come! • Allows users to download materials from an individual resource to a larger unit of learning • Enables users to easily manage and filter their downloads **Note: HMH Content cannot be purchased via this app, it is an application for educational institutions to access HMH Content they have purchased and licensed from Houghton Mifflin Harcourt.
Screenshots
Verdict
The clearest difference is review sentiment: UDBapp Pro at 85% against HMH Go's 22%. UDBapp Pro also leads on rating (4.8 vs 2.1) and ratings volume (2.3K vs 71). HMH Go's advantage is iOS requirement (12.0 vs 16). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
UDBapp Pro holds the better App Store score, 4.8 against 2.1. That said, the two scores are not equally well evidenced: UDBapp Pro has 2.3K ratings behind it against 71, so its average is the more settled of the two. Written reviews point the same way: 85% of UDBapp Pro's written reviews are positive against 22% of HMH Go's.
UDBapp Pro ships an update every 6 weeks, HMH Go every 4 months. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.
| Parameter | UDBapp Pro | HMH Go |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (2.3K ratings) — better | 2.1 (71 ratings) |
| Positive reviews | 85.3% of reviews — better | 22.2% of reviews |
| Number of ratings | 2.3K — better | 71 |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16 | 12.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 21 MB |
| Age rating | 9+ | 4+ |
| Developer | Ultimate Drill Book | Houghton Mifflin Harcourt |
Customer experience
UDBapp Pro
HMH Go
Bugs and requests
UDBapp Pro
Reported bugs
4 issues- Drill files disappearing after updates
- Attendance tracking issues
- Crashes when adding notes
- Drill visualization jumping between sets
Requested features
5 requests- Apple Watch integration
- Ability to create custom drill designs
- Improved note-taking functionality
- Offline drill playback
- Tempo adjustment for drill and music
HMH Go
Not enough reviews yet to summarise bugs or requests.
In-app purchases
UDBapp Pro
No in-app purchases
HMH Go
No in-app purchases
Questions
Is UDBapp Pro free?
Is HMH Go free?
Which has better reviews, UDBapp Pro or HMH Go?
Do UDBapp Pro or HMH Go have ads?
Which is updated more often, UDBapp Pro or HMH Go?
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