Nashville Trainer teaches the Nashville Number System the way worship and session charts are written. It drills you until you can see a number and play the chord in any key without translating, trains your ear to hear the numbers, and holds your whole set list as number charts.
Free to download · Pro is $9.99 once · iPhone
Training modes
Drill it until it's automatic
From Intermediate up, wrong answers are the mistakes real players make, so you learn to recognize the right chord instead of guessing. Sessions run 5, 10, or 20 questions.
Number ↔ Chord
See a number in a key and name the chord, or see a chord and name its number.
Ear training
Hear a chord or progression and name it in numbers, then transpose it. Slow it down anytime.
Progression Trainer
Spell common progressions in any key.
Song Practice
Get quizzed on the songs in your own set list, in any key.
MD ModePRO
Think like a music director and follow the call, like a real Sunday morning.
Expert ModePRO
No multiple choice. Build every chord by hand on a pad.
Extended QualitiesPRO
sus, maj7, m7: the color chords worship runs on.
Key PracticePRO
Lock any session to one key and stay there.
Instruments
Practice on what you play
Guitar
A fretboard for any key that lights up where each number lives, frets 0 to 22, with root-note pads and Hear It playback.
KeysPRO
An interactive keyboard with chord training.
BassPRO
A bass neck with root-note training. On a slash chord, the quiz asks for the bass note.
Build your set list as number charts. Free holds one song with every feature below; Pro holds your whole set list. (Beta)
Numbers or letters
Still learning? Tap the letters off your chord sheet and watch each one become its number.
Import a chord chart
Chords above the words, inline brackets, and ChordPro all convert to numbers automatically, title and key included.
Chords on the words
Paste the lyrics, tap a word, tap a number. Chords can also sit before a word or between words.
Outside the key
♭7, ♭6, ♭3, ♭2, the minor 4, passing chords like the ♯4°, and slash chords like the 1/3.
View Chart
Reads like a page on the music stand, in numbers or letters, in any key. The screen stays awake while it's open.
Share with your band
Send a song with a tap. Lyrics are never sent: your bandmate pastes their own copy and the chords land on the right words.
Staying on track
A few minutes a day adds up
Daily Challenge
A different drill every day, plus a daily goal ring and day streak with milestone celebrations.
Practice Weak Spots
The app finds your toughest key and drills it.
Reminders, Siri & Shortcuts
A daily practice reminder, an evening heads-up before a streak breaks, and "Start my Nashville Trainer daily challenge."
Practice Plans
Guided day-by-day programs that set each day's mode, key, and length.
Number System Foundations
7 days to stop translating and start thinking in numbers. Free.
Ear Training BootcampPRO
10 days from guessing to hearing the numbers.
Own the Key of EPRO
A week locked to worship's favorite guitar key.
Sunday ReadyPRO
5 days that feel like the real thing.
Free vs Pro
Free to start. $9.99 once for everything.
No subscription, no ads, and every future update included. Pro covers all your devices on the same Apple ID, and free features stay free.
| Free | Pro · $9.99 once | |
|---|---|---|
| Keys | C, G, D, A, E | All 12 |
| Difficulty | Beginner | Beginner through Master |
| Number ↔ Chord drills | ✓ | ✓ plus Extended Qualities |
| Ear training (3 modes) | ✓ | ✓ in every key and level |
| Progression Trainer | ✓ | ✓ |
| MD Mode, Expert Mode, Key Practice | — | ✓ |
| Instruments | Guitar | Guitar, Keys, Bass |
| Song Mode | 1 song, every feature | Unlimited songs |
| Practice Plans | Number System Foundations | All 4 plans |
| Daily Challenge, goal, streaks, reminders | ✓ | ✓ |
| Stats | Accuracy, response time, streaks, sessions, time practiced | Adds accuracy over time, performance by key, focus areas |
| Progress share cards | — | ✓ |
| Accent themes | Sunset Orange | All 12 |
Private by design
No account and no sign-in. Your practice history and lyrics stay on your iPhone, reminders are scheduled on the device, and shared songs never include the words.
Made for every player
Light and dark mode, large accessibility text sizes, and VoiceOver support. On iPhone Duo, every screen spreads across the open display and a chart reads like two pages of a book.
Community & support
Help shape what's next
Join the Facebook group
Ask questions, talk shop with other players, and vote on what gets built next.
Nashville Trainer user group →Send feedback
Found a bug or have an idea? Email me, or tap Send Feedback inside the app.
cam@anthemvisualskc.com