Comparison

Lyra Chord Library vs Frequency Detector Tool

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

Head to head
About

Lyra Chord Library

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Lyra is a focused chord library and practice toolkit for guitarists, ukulele players, and bassists. A clean fretboard, the chord shapes you actually use, and a capo calculator and tuner on the same stage. No clutter, no popups, no upsells. KEY FEATURES • Hand-drawn chord shapes on a high-contrast fretboard • Open, barre and movable shapes in every common key • Capo calculator: pick a key and capo position, see the playable shape instantly • Reference-tone tuner for guitar, ukulele and bass with sample-accurate pitch • Favorites: star the shapes you keep coming back to and recall in one tap • Multiple instruments: standard guitar, drop tunings, ukulele and 4-string bass • Dark, distraction-free interface tuned for stage and rehearsal lighting DESIGNED FOR PRACTICE Whether you are learning your first cowboy chords, transposing a setlist to fit a vocalist, or hunting the cleanest shape on the neck, Lyra stays out of the way and just shows the dots. PRIVACY No tracking. No accounts. Your favorites live on your device.

About

Frequency Detector Tool

Instantly analyze musical keys from any frequency in Hertz. It displays the corresponding musical note, cents deviation, and whether it's in key with your selected musical scale. Features vocal context notes and a full frequency chart for EQ guidance.

Highlights
  • Frequency to musical note conversion
  • Cents sharp/flat indication
  • In-key analysis for selected keys
  • Nearest cut candidate identification
  • Vocal context notes for EQ
  • Full frequency chart exploration
  • Solfeggio frequencies with associations
Features
Read full description

Frequency Detector Tool is a free, elegant frequency and musical-key analyzer for producers, mixing engineers, sound healers, and the musically curious. Type in any frequency in Hertz — like 315, 2.5k, or 29834 — and instantly see: The musical note it maps to (e.g. A4 = 440 Hz) How many cents sharp or flat it is Whether it's IN KEY for the key you've selected The nearest "cut candidate" — the closest out-of-key frequency Vocal context notes to guide your EQ decisions Pick your key from all 12 tones and the whole analysis updates instantly, showing the in-key snap, the nearest cut, and vocal-range context (like the "Mud Zone" around 250–400 Hz). Open the full frequency chart to see every note across octaves 0–7, laid out for boosting and cutting in your chosen key — scroll to explore the entire spectrum. Also included: Clickable Solfeggio frequencies (432, 528, 639, 741, 852, 963) with a note on what each is associated with "Did You Know?" music-theory facts A calm, sacred-geometry inspired interface Frequency Detector Tool is completely free — no ads, no subscriptions, no catch. It's my first app, made with love. If it helps you, an optional donation on eyeheru369.com supports more free tools. Works on iPhone, iPad, and Apple Vision Pro.

Screenshots

Frequency Detector Tool1 screens

Verdict

The call

The clearest difference is device support: Frequency Detector Tool at 3 against Lyra Chord Library's —. Frequency Detector Tool also leads on iOS requirement (15.0 vs 17.0). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 6 level
Lyra Chord Library versus Frequency Detector Tool: the parameters behind the verdict, then further details
ParameterLyra Chord LibraryFrequency Detector Tool
PriceFreeFree
Rating—5.0 (3 ratings) — better
Number of ratings—3 — better
Ads—No
In-app purchasesNoNo
Monetization—Free
Devices—iPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size0 MB9 MB
Age rating4+4+
DeveloperLinh Phan Nhat KhanhEye Heru

In-app purchases

None

Lyra Chord Library

No in-app purchases

None

Frequency Detector Tool

No in-app purchases

Questions

Is Lyra Chord Library free?
Lyra Chord Library is free to download, with no in-app purchases.
Is Frequency Detector Tool free?
Frequency Detector Tool is free to download, with no in-app purchases.

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