Comparison

Frequency Sound Wave Generator vs happram

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

Head to head
About

Frequency Sound Wave Generator

Generate and analyze a wide range of sounds and frequencies. Explore tone generation, sound tests, musical tuning, and create custom sound effects. Visualize sound waves and experiment with different waveforms.

Highlights
  • Single and multiple frequency generation
  • Musical notes presets
  • Binaural beats
  • SFX sound generator
  • Sweep generator
  • Bass/Subwoofer sound test
  • DTMF tones
Features
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All frequency sound generator tools in one app! Tone generation, sound tests, musical tuning and many more. This app helps if you are looking for generating sounds in different frequencies, analyzing sound and making sound tests which produce sound waves based on the desired tone. Frequency sound generator includes user-friendly and very high-quality tone generation tools: • Single frequency generator • Multiple frequency tone generation. • Musical notes presets • Binaural beats • SFX sound generator • Sweep generator. • Bass/Subwoofer sound test • DTMF tones • Metronome • Noise generator Features: • Play sound in background: Play your frequency generation sounds in the background while your app is minimized or your screen is off. • Export all generated sounds to an audio file that you can share. • Animated wave in the single oscillator tool. • Frequency generator effects such as Vibrato (FM), Tremolo (AM), Ring Modulation (RM) and also Pulse Width Modulation (PWM) - for square wave only. • Noise generator effects such as auto-pan and breathing effect. • Play up to 15 oscillators at once in the multi oscillator tool. • Play up to 15 sweep oscillators at once. • Tap your tempo in metronome. Commonly used for: • Make you own experiments with sound generation. • Testing own hearing. Human ear is capable of hearing frequencies between 20Hz to 20000Hz. • Use this app as an instrument for playing or producing music. • Tune your musical instruments with musical notes presets. • Test speakers for high end (treble) and low end (bass) tones. • Discover how your audio handles sweeps of frequencies which range from ultrasound to infrasound. • Relax with binaural beats which play different frequencies in each ear. • Find a way to mask your tinnitus frequency. • Or have fun generating random sound effects, different frequencies and exploring all tone generation tools in this app. • Relax with white noise, brown noise, blue noise, violet noise, grey noise or pink noise playing in the background. Notes: • This app supports decimal values as input for frequencies when generating a tone. • This app makes an animated sound wave which tries to visualize a current frequency. • There are several waveforms available: sine, square, triangle and sawtooth. • Clean UI makes navigation simple through the navigation bar or pages where there are more frequency sound generating tools available. • Customize how the app behaves through settings menu where you can change themes, enable octave buttons, decimal points and more. • Phone speakers are not high-quality audio sources and may vary in quality. Sometimes a "parasite" noise can be generated by those speakers in very low or high frequencies which don't define the frequency. • Turn the volume down when creating high frequencies to not cause any discomfort when experimenting with the app. Privacy policy: https://www.frequencysoundgenerator.com/privacy Terms of use: https://www.frequencysoundgenerator.com/terms

About

happram

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Description Wake up to something a little different each morning. happram is an alarm app that randomly selects a different alarm sound for each scheduled alarm. If hearing the same alarm tone every day makes mornings feel stale or stressful, happram helps add a small sense of variety to your wake-up routine. Main Features ・Random alarm sound selection ・Sound categories such as nature, birds, cafe, rain, gentle morning, energetic, and attention sounds ・Favorite-only random selection ・Snooze options: 5, 10, and 15 minutes ・Multiple alarms ・Simple SwiftUI interface designed for daily use ・Local notifications with Time Sensitive notification support where available Recommended For ・People who are tired of the same alarm sound every day ・People who want a lighter, more enjoyable morning routine ・People who prefer nature sounds or gentle alarm tones ・People who want stronger sounds for days when they need extra notice ・People looking for a simple alarm app with random sound variety The sound you wake up to can change each day. Start a new morning habit with happram.

Screenshots

Frequency Sound Wave Generator4 screens
happram4 screens

Verdict

The call

The clearest difference is in-app purchases: happram at none against Frequency Sound Wave Generator's 3. happram also leads on ads (none vs shown) and update cadence (every 10 days vs monthly). On device support and iOS requirement 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

UpkeepUpdate frequency

Frequency Sound Wave Generator ships an update monthly, happram every 10 days. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
Frequency Sound Wave Generator versus happram: the parameters behind the verdict, then further details
ParameterFrequency Sound Wave Generatorhappram
PriceFree — better—
Rating4.7 (87 ratings) — better—
Positive reviews90.5% of reviews—
Number of ratings87 — better—
Update frequencyMonthlyEvery 10 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size169 MB35 MB
Age rating4+4+
DeveloperDavid Krejciyuhi furumori

In-app purchases

3 purchases

Frequency Sound Wave Generator

Subscriptions2
  • Monthly PRO subscription$1.991 Month
  • Yearly Pro Membership7 Days trial$9.991 Year
One-time1
  • Lifetime PRO membership$19.99
None

happram

No in-app purchases

Questions

Is Frequency Sound Wave Generator free?
Frequency Sound Wave Generator is free to download, with in-app purchases available.
Is happram free?
Pricing for happram is not currently listed on the App Store.
Do Frequency Sound Wave Generator or happram have ads?
Frequency Sound Wave Generator shows ads; happram does not.
Which is updated more often, Frequency Sound Wave Generator or happram?
Frequency Sound Wave Generator ships an update monthly, and happram every 10 days. Most recently, Frequency Sound Wave Generator was updated on October 17, 2026 and happram on October 14, 2026.

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