Async Megaphone vs Sd2 Voice Amplifier App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Async Megaphone
This utility app functions as a digital megaphone, allowing users to speak through their device's speaker. It offers options to broadcast live audio, save recordings to files, and manage audio playback.
- Live microphone broadcast
- Save audio recordings
- Playback saved audio
- Simple button interface
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A simple megaphone mainly with three buttons: StartMic: to talk. StartSave: to save to a file. StartSpeaker: to broadcast over the speaker.
Sd2 Voice Amplifier App
This utility app enhances your voice, making it clearer and louder, especially when speaking through a mask. It's also useful for public speaking with external speakers or for individuals with medical conditions affecting their vocal volume.
- Reduces muffled mask voice
- Amplifies voice for public speaking
- Assists individuals with low vocal volume
- Clearer and louder speech output
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The SD2 Voice Amplifier is a smartphone application that reduces your muffled mask voice and allows you to be heard loud and clear! Also use SD2 for public speaking with a Bluetooth speaker and for amplifying your voice if you have a medical condition that stops you from speaking loudly!
Screenshots
Verdict
The clearest difference is ads: Sd2 Voice Amplifier App at none against Async Megaphone's shown. Sd2 Voice Amplifier App also leads on monetization model (free vs ad-supported). Async Megaphone's advantage is update cadence (every 2 months vs every 32 months) and iOS requirement (9.0 vs 13.1). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Async Megaphone ships an update every 2 months, Sd2 Voice Amplifier App every 32 months. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.
| Parameter | Async Megaphone | Sd2 Voice Amplifier App |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months — better | Every 32 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 13.1 |
| Further details — not scored | ||
| Size | 10 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Propersh LLC | Transport Financial Services, LLC |
Customer experience
Async Megaphone
Sd2 Voice Amplifier App
In-app purchases
Async Megaphone
No in-app purchases
Sd2 Voice Amplifier App
No in-app purchases
Questions
Is Async Megaphone free?
Is Sd2 Voice Amplifier App free?
Do Async Megaphone or Sd2 Voice Amplifier App have ads?
Which is updated more often, Async Megaphone or Sd2 Voice Amplifier App?
Other comparisons
