Comparison

o46scope vs Frequency Gen

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

Head to head
About

o46scope

Features
Read full description

o46scope is an audio measurement app for iPhone and iPad that helps you visualize sound in real time. It supports oscilloscope and FFT spectrum display, allowing you to inspect waveforms and frequency components instantly. The app also supports internal signal generation with Tone1 / Tone2 and test signal (Beep) output, making it useful for quick checks, learning, and simple audio measurement tasks. Key features • Oscilloscope display • FFT spectrum display • Signal tab for signal control • Internal signal generation with Tone1 / Tone2 • Speaker output for tones • Test signal (Beep) output • Adjustable parameters Premium Tone1 / Tone2 internal signal generation is available as a premium feature. It is available without ads. Ideal for users who want waveform visualization, frequency analysis, and signal generation in one app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Frequency Gen

Features
Read full description

Frequency Gen generates audio tones from 1 Hz to 22,000 Hz with 4 wave types: sine, square, triangle, and sawtooth. Frequency controls Logarithmic slider Fine tuning +/- in 1 / 10 / 100 Hz steps Quick presets: 40, 100, 440, 1000, 8000, 16000 Hz Favorites: save up to 10 frequency + waveform combos Waveform viewer Real-time waveform (canvas), on/off Settings Volume control with a warning above 80% Light/dark theme Haptic feedback (on/off) 4 languages: EN, ES, CA, DE Silent switch detection Onboarding for new users Built-in FAQ

Screenshots

o46scope4 screens
Frequency Gen4 screens

Verdict

The call

The clearest difference is in-app purchases: Frequency Gen at none against o46scope's 1. o46scope's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 3 months). On price and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. o46scope sells 1 in-app purchase, starting at $19.99 per year. Frequency Gen asks for nothing beyond the download.

UpkeepUpdate frequency

o46scope ships an update every 6 weeks, Frequency Gen every 3 months. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard4 real differences Ā· 2 level
o46scope versus Frequency Gen: the parameters behind the verdict, then further details
Parametero46scopeFrequency Gen
PriceFreeFree
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size53 MB6 MB
Age rating4+4+
DeveloperShinsuke TsutsuiNina Lobadina

In-app purchases

1 purchases

o46scope

Subscriptions1
  • Premium7 Days trial$19.991 Year
None

Frequency Gen

No in-app purchases

Questions

Is o46scope free?
o46scope is free to download, with in-app purchases available.
Is Frequency Gen free?
Frequency Gen is free to download, with no in-app purchases.
Do o46scope or Frequency Gen have ads?
Frequency Gen shows ads; o46scope does not.
Which is updated more often, o46scope or Frequency Gen?
o46scope ships an update every 6 weeks, and Frequency Gen every 3 months. Most recently, o46scope was updated on October 25, 2026 and Frequency Gen on October 31, 2026.

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