Comparison

ChordU vs Thaïa

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

Head to head
About

ChordU

This app uses advanced technology to recognize chords and notes for any song, displaying them as sheet music. It supports multiple instruments and offers features like a digital capo, tempo control, and organization tools for your favorite tracks.

Highlights
  • Chord and note recognition
  • Sheet music display (treble & bass clef)
  • Support for guitar, piano, ukulele, mandolin
  • Jamlist for song organization
  • Digital capo and transpose function
  • Dynamic BPM and tempo control
  • Upload your own music for analysis
Features
Read full description

ChordU: The Ultimate Musician's Tool. Enhance your playing skills with advanced chord and note recognition technology. Quickly find sheet music for any song and play along on guitar, piano, ukulele, or mandolin. Three chord versions (Simple, Advanced, Bass) and notes as sheet music for treble and bass clef provide a comprehensive learning experience. Organize your favorite songs with the Jamlist feature and play bass with ease. Adjust the song key with the digital capo and transpose function. Control tempo with the dynamic BPM and tempo feature. Upload your music and receive chords and notes, download PDFs, MIDI files, and more. Download rhythmic MIDI for endless chord progressions and note sequences. Download now and start making music like a pro. – Multiple versions of chords ChordU provides chords in Simple, Advanced & Bass versions for the same song and lets you play various musical instruments like guitar, piano, ukulele, and mandolin. With the help of deep learning, ChordU gets you chords for any song with extremely high accuracy. – Notes as sheet music Play any Instrument with the help of ChordU Notes. Notes are represented as sheet music with symbols & letters and support playing along with the song. Deeply analyze any song with the help of Simple & Music versions of notes. Notes displayed as sheet music are available for both treble clef and bass clef. Once you click on each of these versions, it instantly shows sheet music. # Treble clef There are three versions in treble clef; simple notes that help you get the rhythm of the song, while music notes let you find the sequence of instrument notes. # Bass clef You can select the bass notes button to find low-pitch sheet music for bass. – Jamlist to organize better Jamlist helps to organize a list of your favorite song by custom category, separated into several folders according to your mood. Once you add a track to a particular folder of the Jamlist, you can revisit it later from the main menu. – Bass made Easy Are you a bass player? We have your back. Now play your favorite music piece with rhythmic and harmonic functions simultaneously. With the help of Bass Chords and Bass Notes as sheet music, master any song quickly & easily. – Digital Capo & Transpose Just like a guitar capo, change the song key to any position and play chords in your preferred zone. The digital transposer lets you transpose to any key, both positively & negatively. Adjust the pitch according to your vocal range. – Dynamic BPM & Tempo Dynamic BPM graph shows rhythm/variations in the beat count of the song. Tempo helps you control the speed of the music; you want it slow or fast. If you are stuck somewhere with the chords or notes, decrease the tempo and get a smooth learning experience. – Upload & listen to Music Only. ChordU lets you upload songs from your collection and provides the chords and notes, download the MIDI files, download notes, transpose and use all ChordU Premium features of your music. In addition, the Music Only mode on your uploaded songs helps you with ear training. – Download PDF Get the most requested feature where you can easily download PDFs for any version in any transpose. We have shortened the number of clicks for you; switch to the version you want chords or notes for, click on the download PDF button, and instantly get it. – Download rhythmic MIDI Download the chords MIDI and rhythmic notes MIDI of any song. Then, you can experiment with endless chord progressions & note sequences in your music studio tools or midi instruments. "Music made accessible with ChordU. Join our global community of musicians, amateurs, and professionals. With our upgraded ChordU Premium and always-free basic features, unleash your musical potential. Start your journey now!"

About

Thaïa

Features
Read full description

The world is already interesting. Thaïa helps you take a closer look. Point your camera at a monument, a facade, a statue or a work of art. Thaïa recognizes what you are looking at and tells you what deserves your attention. LOOK CLOSER Does a detail intrigue you? Does a place catch your eye? Simply point your camera. Thaïa identifies what is in front of you and gives you the context that changes the way you see it: its history, its era, the details to notice and what makes it unique. ASK THE QUESTION Have a question? Ask it naturally, in writing or by voice. Luna gets straight to the point. Atlas goes deeper. Kai takes you toward what you might not have thought to look for yourself. Three ways to explore, depending on your curiosity in the moment. FOLLOW YOUR CURIOSITY Tell us where you are, what interests you and how much time you have. Thaïa creates a route tailored to your pace and connects places in an order that makes sense. A few hours, a day or simply the desire to walk: start from where you are. DON'T MISS IT When a remarkable place is nearby, Thaïa can let you know. A facade you had never noticed. A work of art hidden down a street. A story behind a building you pass every day. Sometimes, you just need to know where to look. KEEP YOUR EYES ON THE PLACE Listen to the story while you walk, look or explore. Then find the stories you have saved and listen to them again, even offline. Available in French, English and Spanish. THAÏA+ AND THAÏA PREMIUM SUBSCRIPTIONS Thaïa+ and Thaïa Premium are monthly or annual auto-renewing subscriptions. Thaïa Premium includes the same features as Thaïa+, with usage limits three times higher for chat, visual recognition and voice. Payment is charged to your Apple account when the purchase is confirmed. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage and cancel it at any time in your Apple account settings. Terms of Use: https://thaia-app.com/en/legal/terms License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://thaia-app.com/en/legal/privacy

Screenshots

ChordU4 screens
Thaïa4 screens

Verdict

The call

The clearest difference is update cadence: Thaïa at every 5 days against ChordU's every 2 weeks. ChordU's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases 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

Both are free to download. ChordU sells 2 in-app purchases, starting at $4.99 per month and Thaïa sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ChordU ships an update every 2 weeks, Thaïa every 5 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
ChordU versus Thaïa: the parameters behind the verdict, then further details
ParameterChordUThaïa
PriceFreeFree
Rating3.2 (23 ratings) — better—
Positive reviews38.3% of reviews—
Number of ratings23 — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size36 MB142 MB
Age rating9+12+
DeveloperFLOWREC SOLUTIONS PRIVATE LIMITEDThaia

Bugs and requests

ChordU

Reported bugs

45 issues
  • Internal server error
  • Error: Bad Request
  • Loop mode does not work in browser version
  • Midi save is not working
  • Horizontal mode sidebar does not appear on iPad
Show 40 more
  • App requires login every time it's closed
  • Cannot select playback speed other than 75% or 50%
  • Audio does not transpose
  • Search feature not working
  • Songs not loading
  • App shows loading and then nothing
  • No sound on various devices (iPhone, iPad)
  • Videos have no sound on latest iOS
  • Buttons barely work
  • Cannot slow down or change tempo
  • App does not open
  • No advanced chords tab on app
  • Midi download issues for mandolin
  • App gets stuck and doesn't recognize login
  • Chords do not match songs
  • Takes forever to change to the next chord
  • Freezing up
  • Waiting for chord requests
  • App doesn't load songs
  • Shows loading and that's it
  • Sound stopped working
  • Search bar doesn't find anything
  • App errors if trying to download with mandolin selected
  • Sound doesn't work on newer iPads
  • Sound doesn't work unless external device used
  • Videos have no sound under the latest iOS version
  • Buttons barely work
  • Cannot slow down or change tempo
  • App does not open
  • No advanced chords tab on app
  • App gets stuck and doesn't recognize login
  • Chords are incorrect
  • Takes forever to change to the next chord
  • Freezing up
  • Waiting for chord requests
  • App doesn't load songs
  • Shows loading and that's it
  • Sound stopped working
  • Search bar doesn't find anything
  • App errors if trying to download with mandolin selected

Requested features

11 requests
  • Add bass guitar option
  • Update app to match web version features
  • Fix horizontal mode sidebar on iPad
  • Allow email/password login instead of only social media
  • Add advanced chords tab to the app
Show 6 more
  • Improve MIDI download functionality
  • Allow selection of different playback speeds
  • Enable audio transposition
  • Improve PDF export readability
  • Add dark mode option
  • Allow users to delete songs from repertoire

Thaïa

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

ChordU

Subscriptions2
  • ChordU Premium Monthly3 Days trial$4.991 Month
  • ChordU Premium Yearly$39.991 Year
4 purchases

Thaïa

Subscriptions4
  • Thaïa+ Monthly$3.991 Month
  • Thaïa Premium Monthly$8.991 Month
  • Thaïa+ Yearly$34.991 Year
Show 1 more
  • Thaïa Premium Yearly$69.991 Year

Questions

Is ChordU free?
ChordU is free to download, with in-app purchases available.
Is Thaïa free?
Thaïa is free to download, with in-app purchases available.
Do ChordU or Thaïa have ads?
Neither ChordU nor Thaïa shows ads.
Which is updated more often, ChordU or Thaïa?
ChordU ships an update every 2 weeks, and Thaïa every 5 days. Most recently, ChordU was updated on November 2, 2026 and Thaïa on November 5, 2026.

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