Comparison

OnKey vs StageTracker Mobile

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

Head to head
About

OnKey

This app generates readable, note-based exercises for practicing scales and chords. It's ideal for musicians of all levels looking for a focused and efficient way to improve their technique and theory knowledge without manual preparation.

Highlights
  • Generate note-based exercises
  • Select scale or chord type
  • Transpose to any key
  • Set range and clef
  • Choose from various patterns
  • Add note names and time signatures
Features
Read full description

OnKey Scale Practice is a simple, effective tool that helps musicians practice scales and chords with clarity and focus. Just enter your preferences and instantly generate readable, note-based exercises—no more flipping through books or writing them out by hand. Perfect for warm-ups, technique drills, or theory work, whether you're a beginner or an advanced player. Features: Select your scale or chord type Transpose to any key Set your range and clef Choose from various patterns Add note names and time signatures Designed for flexibility. Built for clarity. For all instruments.

About

StageTracker Mobile

Features
Read full description

MULTI-TRACK AUDIO StageTracker – The All-in-One Live Performance App StageTracker turns your iPhone, iPad, or Mac into a powerful stage companion. Manage your entire show from one place: songs, setlists, lyrics, backing tracks, video clips, MIDI, and click – all perfectly synchronized. AUDIO PLAYBACK Load multiple audio tracks per song with independent volume, pan, and effects. Route audio to different output channels with professional multi-channel interfaces like the RME Babyface Pro FS. Adjust pitch and speed in real time without compromising quality. VIDEO & HDMI OUTPUT Add video clips to your songs and send them to an external screen via HDMI. Use idle screens (image or video) between songs for a polished stage look. Video playback stays perfectly in sync with your audio and click tracks. LYRICS & TELEPROMPTER Write, edit, and display lyrics with automatic scrolling during playback. Zoom controls let you adjust text size for any stage situation. Use play mode as a full-screen teleprompter – on your device or on an external display. MIDI TRACKS & TRIGGER Create MIDI event sequences to control external gear – lighting desks, synths, effects processors, or anything that speaks MIDI. Trigger MIDI events at precise moments during your songs. CLICK TRACK Built-in click track engine with configurable time signatures, count-in bars, and accent patterns. Keep your band tight without needing a separate click source. SETLISTS Organize songs into setlists with drag-and-drop reordering. Auto-advance to the next song when playback ends. Queue songs manually or let the setlist flow automatically through your entire show. DEVICE SYNC Connect multiple devices on stage via local network. Sync lyrics, setlist position, and transport controls across iPads and iPhones so every band member stays on the same page. SONG SHARING Export and import songs as .stgsong files – including all audio, video, MIDI, and lyrics. Share via AirDrop, email, or any file sharing method. Full backup and restore for your entire library. WORKS EVERYWHERE Designed for iPhone, iPad, and Mac (Catalyst). Adaptive layout adjusts automatically to your screen size. Runs natively on Apple Silicon. FREE & PRO Get started for free with up to 3 songs and core features. Upgrade to StageTracker Pro for unlimited songs, multi-channel routing, and the full feature set. Whether you're a solo artist, worship leader, or full band – StageTracker keeps your show running smoothly from first note to final bow. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

OnKey4 screens
StageTracker Mobile4 screens

Verdict

The call

The clearest difference is price: StageTracker Mobile at Free against OnKey's $4.99. StageTracker Mobile also leads on update cadence (every 11 days vs every 2 months). OnKey's advantage is in-app purchases (none vs 2) and iOS requirement (14.1 vs 17.0). 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

StageTracker Mobile is free to download; OnKey costs $4.99 up front. StageTracker Mobile sells 2 in-app purchases, starting at $8.99 per month. OnKey asks for nothing beyond the download.

UpkeepUpdate frequency

OnKey ships an update every 2 months, StageTracker Mobile every 11 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
OnKey versus StageTracker Mobile: the parameters behind the verdict, then further details
ParameterOnKeyStageTracker Mobile
Price$4.99Free — better
Rating3.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.1 — better17.0
Further details — not scored
Size2 MB45 MB
Age rating4+9+
DeveloperRea MeirJens Lucking

In-app purchases

None

OnKey

No in-app purchases

2 purchases

StageTracker Mobile

Subscriptions2
  • Pro Monthly$8.991 Month
  • Pro Yearly$59.991 Year

Questions

Is OnKey free?
OnKey costs $4.99, with no in-app purchases.
Is StageTracker Mobile free?
StageTracker Mobile is free to download, with in-app purchases available.
Do OnKey or StageTracker Mobile have ads?
Neither OnKey nor StageTracker Mobile shows ads.
Which is updated more often, OnKey or StageTracker Mobile?
OnKey ships an update every 2 months, and StageTracker Mobile every 11 days. Most recently, OnKey was updated on November 3, 2026 and StageTracker Mobile on October 24, 2026.

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