Comparison

Speak Out Loud vs Simple Spectrogram

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

Head to head
About

Speak Out Loud

Features
Read full description

Turn your iPhone into a live broadcast microphone. Start a room, share a link, and your audience listens instantly in any browser — no app download required. PERFECT FOR: • Teachers broadcasting to students • Worship leaders reaching their congregation • Event hosts addressing a room • Community organizers running meetings • Anyone who needs to be heard HOW IT WORKS: 1. Open Speak Out Loud and create a room 2. Share the link or QR code with your audience 3. They open it in any browser and tap Listen 4. You speak — they hear you live NO FRICTION FOR LISTENERS: Your audience never needs to download anything. The link opens in Safari, Chrome, or any browser and works immediately. No accounts, no passwords, no setup. FEATURES: • One-tap broadcasting from your iPhone • Live listener count • Share via Messages, AirDrop, or any app • QR code for in-room sharing • Background audio support • Works on any device with a browser Whether you're speaking to 3 people or 300, Speak Out Loud gets your voice to them instantly. SUBSCRIPTION INFO: Speak Out Loud offers auto-renewing subscriptions (Weekly, Monthly, Yearly) for unlimited broadcast time. Free plan limits sessions to 2 minutes. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period; manage or cancel anytime in your Apple ID account settings. Privacy Policy: https://speak-out-loud.pages.dev/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Simple Spectrogram

Visualize sound frequencies in real-time with a dynamic spectrogram. Analyze audio, identify musical notes, and adjust display settings for detailed sound inspection. Audio processing is done entirely on-device, ensuring privacy.

Highlights
  • Real-time spectrogram visualization
  • Logarithmic frequency scale
  • Identify musical notes and frequencies
  • Pause and inspect audio slices
  • Adjustable frequency range and contrast
  • Portrait and landscape support
Features
Read full description

See the frequencies in the sound around you. Spectrogram turns your microphone input into a smooth, real-time spectrogram with a clear logarithmic frequency scale and Inferno colors. • Watch sound evolve over time, with the newest audio at the top. • Pause and tap any slice to inspect its frequency spectrum. • Tap or drag on the spectrum to find nearby peaks and their exact frequencies. • See the nearest musical note and the difference in hertz and cents, referenced to A4 = 440 Hz. • Adjust the frequency range, noise floor, and contrast. • Use portrait or landscape on iPhone and iPad. Audio is analyzed on your device in memory. It is never recorded, uploaded, or shared. No account, ads, or tracking. Musical note labels describe individual spectral peaks, which may be harmonics rather than a sound’s fundamental frequency.

Screenshots

Speak Out Loud3 screens
Simple Spectrogram2 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Spectrogram at none against Speak Out Loud's 3. Speak Out Loud's advantage is iOS requirement (15.1 vs 17.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Speak Out Loud sells 3 in-app purchases, starting at $4.99 per 7 days. Simple Spectrogram asks for nothing beyond the download.

Scorecard2 real differences · 6 level
Speak Out Loud versus Simple Spectrogram: the parameters behind the verdict, then further details
ParameterSpeak Out LoudSimple Spectrogram
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size48 MB1 MB
Age rating4+4+
DeveloperMenlo Park Lab Corp.DANIEL LAWRENCE LU

In-app purchases

3 purchases

Speak Out Loud

Subscriptions3
  • Premium Weekly$4.997 Days
  • Premium Monthly$9.991 Month
  • Premium Yearly$39.991 Year
None

Simple Spectrogram

No in-app purchases

Questions

Is Speak Out Loud free?
Speak Out Loud is free to download, with in-app purchases available.
Is Simple Spectrogram free?
Simple Spectrogram is free to download, with no in-app purchases.
Do Speak Out Loud or Simple Spectrogram have ads?
Neither Speak Out Loud nor Simple Spectrogram shows ads.

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