Proof Authentication vs ChordCraft
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proof Authentication
Verify product authenticity instantly by scanning official security marks. Ensure your purchases are genuine with rapid and accurate authentication. Look for the Proof Security Mark on select consumer goods.
- Instant product authentication
- Scan Official Proof Security Marks
- High accuracy verification
- Fast results
- Supports selected consumer items
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Proof allows you to authenticate the products you buy with unprecedented speed and accuracy. By simply holding the Proof App over any Official Proof Security Mark you will know within seconds that the product you have purchased is 100% authentic. Look for the Proof Security Mark on selected consumer items.
ChordCraft
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ChordCraft automatically generates chord progressions for single-note melodies played on your instrument. How to use: Set BPM and start recording with a count-in Play a single-note melody on piano, guitar, or any instrument The app analyzes your melody and assigns the best-fitting chords Tap any chord to change it manually Free features: Microphone recording (single-note instrument melodies) Real-time pitch detection Automatic key estimation and chord assignment Edit individual chords Playback with melody and chords Pro features (one-time purchase): Chord progression templates (Pop, Jazz, Bossa Nova, Blues, Canon, and more) Export audio as AAC / WAV Sheet music PDF export (melody and chord progression as a printable score) Perfect for songwriters who can come up with melodies but need help with harmony. Note: Humming and chords/polyphonic input are not supported. Single-note melodies only.
Screenshots
Verdict
The clearest difference is in-app purchases: Proof Authentication at none against ChordCraft's 1. On price, ads, device support and iOS requirement 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. ChordCraft sells 1 one-off in-app purchase. Proof Authentication asks for nothing beyond the download.
| Parameter | Proof Authentication | ChordCraft |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (7 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 75 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Proof Authentication Corporation | kou works |
In-app purchases
Proof Authentication
No in-app purchases
ChordCraft
- ChordCraft Pro$2.99
Questions
Is Proof Authentication free?
Is ChordCraft free?
Do Proof Authentication or ChordCraft have ads?
Other comparisons
