Support Directory: Official user guides, technical support, and documentation for mobile applications and browser utilities built and maintained by Jude Sudbury (Merdeka Ltd t/a echo3.co).

Mobile & Wearable Apps

StrictTempo App Icon

StrictTempo (iOS & watchOS)

The dedicated ballroom and Latin dance tempo player for iPhone, iPad, and Apple Watch. Features pitch-preserving speed control, BPM/MPM switching, 7-band EQ, and wrist remote controls.

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  • Platforms: iPhone (iOS 17+), iPad (iPadOS 17+), Apple Watch (watchOS 10+)
  • Pricing & Tracking: 100% free with zero ads, subscriptions, or data tracking.
  • Direct Documentation: Full documentation, how-to guides, and contact channels are available on the StrictTempo Support Page.

Web Tools & Utilities

In addition to native apps, echo3.co develops and hosts interactive browser tools for music theory, chord conversion, and business automation:

  • UG ChordPro Converter: Converts Ultimate Guitar chord tabs to standard ChordPro format with one-click copying and transposition.
  • Guitar Arranger: Smart fretboard voice-leading engine and chord voicing arrangement assistant.
  • Guitar Voicing Finder: Interactive chord dictionary across standard and alternate tunings.
  • Piano Voicing Finder: Keyboard voicings and harmonic voice leading generator.
  • Capo Calculator: Analyzes progressions to recommend optimal capo positions and open chord shapes.
  • Alternate Tuning Finder: Explores open and dropped tunings tailored to song chord sets.

Explore all browser tools in the Tools Directory.

Contact & Assistance

Need help with an app or running into an issue?

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