ChordU vs Decision Threshold
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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!"
Decision Threshold
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Make a choice. Look at the conditions again. Discover what influenced you. Decision Threshold offers 100 short experiments to help you reflect on your decisions. Choose a side in a dilemma, check a remembered detail against your confidence, or see how new information affects your choice. Then try an insight from your session in an everyday decision. WHAT HAPPENS AFTER YOUR ANSWER? Explore your choices and the information available at each step. See what the result suggests, the limits of that observation and something you can try in everyday life. Keeping the same choice can be meaningful too. FROM A RESULT TO EVERYDAY LIFE Your journey brings together completed sessions, observations and your next step. Connect a result to Your Decision Notes: record what you will do, what you expect and what would make you reconsider. Come back to reflect on what happened. Your first entry stays intact, with later reviews alongside it. 100 SESSIONS, 20 DECISION AREAS Explore memory, confidence, information sources, time, ownership, probability and communication. Follow one of five themed routes or choose your own path through the catalog. There is no required order or daily content gate. START FREE 24 complete sessions and their results are free. One Premium purchase unlocks the 76 additional sessions in this release. Journey summaries, the Decision Map, decision notes and reviews remain free. No ads or subscriptions. The price is shown before purchase, and you can restore access with the same Apple Account. Available in English, Turkish, Spanish and French. Choose a light, dark or system theme. Optional session and decision reminders help you return. No account required. Session records and personal notes stay on your device. Export sessions as JSON and notes as plain text; these files cannot be imported back into the app as backups. Restoring a purchase does not transfer your personal records to another device. Decision Threshold is not a health service, diagnostic tool or scientifically validated personality test. Results describe the responses recorded in that session, without definitive judgments or promises about your real-life decisions.
Screenshots
Verdict
The clearest difference is device support: ChordU at 3 against Decision Threshold's 1. ChordU also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, ads and in-app purchases 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. ChordU sells 2 in-app purchases, starting at $4.99 per month and Decision Threshold sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
ChordU ships an update every 2 weeks, Decision Threshold every 3 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | ChordU | Decision Threshold |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (23 ratings) — better | — |
| Positive reviews | 38.3% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 36 MB | 16 MB |
| Age rating | 9+ | 4+ |
| Developer | FLOWREC SOLUTIONS PRIVATE LIMITED | MUSTAFA OZTURK |
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
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- 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
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- 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
Decision Threshold
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ChordU
- ChordU Premium Monthly3 Days trial$4.991 Month
- ChordU Premium Yearly$39.991 Year
Decision Threshold
- Premium · Full Collection$4.99
Questions
Is ChordU free?
Is Decision Threshold free?
Do ChordU or Decision Threshold have ads?
Which is updated more often, ChordU or Decision Threshold?
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