Comparison

ChordProg Ear Trainer vs Zero to 1

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

Head to head
About

ChordProg Ear Trainer

This app offers a realistic music training experience by using real audio clips to teach chord progressions, intervals, chords, and scales. It provides over 500 audio clips for practice and is designed to help prepare users for ear training tests.

Highlights
  • Chord progression recognition
  • Interval recognition exercises
  • Chord recognition exercises
  • Scale recognition exercises
  • 500+ real audio clips
  • Music theory exploration
  • Regular updates with new features
Features
Read full description

Learn to recognize chord progressions by ear with real recorded music. ChordProg Ear Trainer has exercises for chord, interval and scale practice, from identifying individual sounds to following a whole progression. Listen to a clip and name the chords in order. Replay a passage when you need another listen, and switch between chord names and Roman numerals to practice recognizing each chord's role in the key. More than 500 recorded clips give you practice across different keys and voicings. Focus on the sounds you want to recognize. Practice telling chord types apart, hearing the distance between two notes or identifying a scale as it plays. Work through short levels and return to the ones you find difficult. Your results and daily streak help you keep track of your practice. When you want to understand what you heard, look it up in the chord, interval and scale dictionaries. You can also tap notes on the piano to find matching chords and scales. Try introductory levels without a subscription. Premium gives you full access to the chord, interval, scale and chord progression exercises through an auto-renewing monthly or yearly subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Zero to 1

Features
Read full description

Zero to 1 is a founder operating system. It takes you from first idea to a running business through missions: real pieces of work in your own company, not lessons to watch. Your journey is built just for you. Tell the app your idea and your goals, and it generates a path of missions with honest time estimates, then adapts as you go. No two founders walk the same path. Every mission ends in evidence. You submit what you actually made, interview notes, a price, a plan, and an AI reviewer reads it and tells you what is clear and what needs attention. Progress only moves when something real happened. What you get: • A guided journey generated from your idea, with worked examples and audio you can listen to on the go • Honest reviews of the work you submit: what is clear, what needs attention • Your business plan, built as you go. Every mission you finish fills in another section, and each one names the work it came from • A logo and brand starter, drafted by AI, chosen by you • Founder Memory: every reflection, decision and proof point kept in one honest record • Signals: quiet checks that run while you build and speak up only when it is worth your time What we never do: no points, no badges, no streaks, no fake urgency. Your progress reflects real achievement, nothing else. The AI advises and reviews. It never does the founder's work for you, and it never decides for you. Zero to 1 is licensed by institutions. If your school, university or programme runs Zero to 1, your access is free through them.

Screenshots

ChordProg Ear Trainer4 screens
Zero to 14 screens

Verdict

The call

The clearest difference is in-app purchases: Zero to 1 at none against ChordProg Ear Trainer's 2. ChordProg Ear Trainer's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.4). On price, update cadence and ads 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

Both are free to download. ChordProg Ear Trainer sells 2 in-app purchases, starting at $2.99 per month. Zero to 1 asks for nothing beyond the download.

UpkeepUpdate frequency

ChordProg Ear Trainer ships an update every 5 days, Zero to 1 every 4 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
ChordProg Ear Trainer versus Zero to 1: the parameters behind the verdict, then further details
ParameterChordProg Ear TrainerZero to 1
PriceFreeFree
Rating4.4 (16 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings16 — better—
Update frequencyEvery 5 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.4
Further details — not scored
Size116 MB53 MB
Age rating4+4+
DeveloperDevDa ASFounder Progress Ltd

In-app purchases

2 purchases

ChordProg Ear Trainer

Subscriptions2
  • Monthly premium subscription!$2.991 Month
  • Yearly Premium Subscription!3 Days trial$24.991 Year
None

Zero to 1

No in-app purchases

Questions

Is ChordProg Ear Trainer free?
ChordProg Ear Trainer is free to download, with in-app purchases available.
Is Zero to 1 free?
Zero to 1 is free to download, with no in-app purchases.
Do ChordProg Ear Trainer or Zero to 1 have ads?
Neither ChordProg Ear Trainer nor Zero to 1 shows ads.
Which is updated more often, ChordProg Ear Trainer or Zero to 1?
ChordProg Ear Trainer ships an update every 5 days, and Zero to 1 every 4 days. Most recently, ChordProg Ear Trainer was updated on November 2, 2026 and Zero to 1 on October 31, 2026.

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