Public Speaking · iPhone App
The public speaking app that focuses on your voice
Most public speaking advice focuses on structure, slides, and eye contact. Astound focuses on what carries all of it: your voice.
Why voice is the most undertraining element of public speaking
Speakers invest enormous effort in their content — the structure, the slides, the stories, the data. Then they stand up and deliver it through a voice they've never trained. A great speech delivered with a thin, tense, shaking voice lands differently than the same speech delivered with a grounded, resonant, confident voice.
Research on audience perception consistently finds that vocal qualities — confidence, warmth, authority, clarity — are processed before content. The audience makes an initial judgment about the speaker in the first few seconds, based almost entirely on voice. Content has to fight uphill from there if the voice hasn't established credibility.
This is the gap Astound fills. Not presentation coaching — voice coaching. The physical mechanics that make a voice work under pressure.
What Astound does for public speaking
Pre-presentation warmup
The Stage Presence and Meeting packs guide you through a physical warmup specifically for speaking in front of a group — body release, diaphragmatic breathing, and vocal warmup — in 3–5 minutes.
Breath support training
Running out of breath mid-sentence, voice fading at the end of statements, rushing to finish — all breath support issues. Daily breathing exercises build the diaphragmatic foundation that eliminates these patterns.
Reducing voice shake under pressure
The Anxiety pack addresses the specific physical patterns that cause voice trembling: muscle tension, shallow breathing, and inconsistent air pressure. Physical exercises change the physical cause.
Articulation and clarity
Under stress, articulation compresses — words blur together, consonants drop, pace increases. Astound's articulation exercises train clear consonant production and deliberate pacing that hold up under pressure.
Daily habit building
Consistent daily practice is what makes the difference between techniques that work once and techniques that become automatic. The 30-day challenge and daily programs build a routine that changes how you speak habitually.
Astound by the numbers
4.7
App Store rating
★
Featured by Apple
Free
To download
iOS
iPhone only
Download Astound
The highest-rated public speaking voice app on iPhone.
Exercises designed by professional voice coach Leila Bostic. Free to start.
iOS only · Premium from $6.49/month for full library access
Get Astound on the App StoreAstound is an iOS voice and speech coaching app. Visit astoundthem.comor search "Astound Voice & Speech Coach" on the App Store.