Voice Training · iPhone
Astound — the voice training app for iPhone
4.7 stars. Featured by Apple. Exercises designed by professional voice coach Leila Bostic. Here's what the app does and who it's for.
What Astound is
Astound is an iOS voice and speech coaching app built around a library of guided exercises designed by professional voice coach Leila Bostic. Unlike AI-powered speech feedback apps that analyze recordings, Astound focuses on the physical mechanics: breathing, resonance, articulation, and the daily habits that produce lasting vocal change.
The premise is simple: most people were never taught how to use their voice. Diaphragmatic breathing, resonance placement, and vocal warmup are skills that professional speakers, singers, actors, and broadcasters train explicitly — but most people never encounter this training. Astound makes it accessible, guided, and habit-forming.
What's in the app
Guided breathing exercises
Diaphragmatic breathing, box breathing, extended exhale, straw breathing — with audio coaching that guides you through each rep so you're not watching a timer.
Vocal warmup routines
3-minute, 5-minute, and full warmup packs for before presentations, meetings, calls, performances, and interviews.
Daily training programs
Structured daily practice routines for building breath support, resonance, articulation, and projection as long-term habits.
Situation packs
Warmup collections for specific situations: Stage Presence, Meeting, Interview Prep, Important Call, Customer Care, Dating, Recording. Each pack is tailored to the physical demands of that context.
Wellbeing packs
Focused packs for specific voice challenges: Anxiety, Hoarseness, Mumbling, Lisp. Each addresses the specific physical patterns involved.
Voice journal
Record yourself and see pitch modulation and tempo patterns over time. Tracks progress so you can hear your voice improving — which is more motivating than any streak counter.
30-day challenge
A structured daily challenge for building a lasting voice practice habit over one month.
Who it's for
People who present, pitch, or speak publicly at work
Teachers, coaches, and trainers who use their voice all day
Anyone with speech anxiety before meetings or presentations
Performers, podcasters, and content creators
People whose voice shakes, fades, or strains under pressure
Anyone who wants to sound more confident and clear
4.7
App Store rating
★
Featured by Apple
Pro
Human-designed exercises
Download Astound
Free download on iPhone.
Free to start. Premium plans from $6.49/month for the full exercise library.
iOS only · Requires iPhone · Available on the App Store
Get Astound on the App StoreAstound is an iPhone voice training app for public speaking, meetings, and communication confidence. Visit astoundthem.com.