Comparison

Audio Function Generator PRO vs hapjam

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

Head to head
About

Audio Function Generator PRO

Generate various audio test tones, including sine, square, and sawtooth waves. Explore frequency and volume sweeps, custom presets, and different types of noise. Advanced settings allow for fine-tuning signal parameters and creating complex multi-tone sequences.

Highlights
  • Generate sine, square, triangular, and sawtooth tones
  • Frequency and volume sweep generation
  • Customizable presets and configurations
  • Multiple noise types (White, Pink, Violet, etc.)
  • Advanced signal parameter control
  • Multi-tone and dual function generation
Features
Read full description

This is the highly recommended and praised Function Generator App - an amazingly great and powerful tone generator. Enriched with a vast amount of features yet it is extremely intuitive and designed for simplicity. Get to know this great App now! It is very well maintained and has received considerable upgrades over the past years. So, … what can you do with this App? • PLAY TEST TONES Sine, Rectangular, Triangular and Sawtooth. • PLAY FREQUENCY SWEEP TEST TONES in both directions (minimum to maximum frequency and maximum to minimum frequency). • PLAY VOLUME SWEEPS (from minimum to maximum volume). • Try the SWEEP REPEAT / WOBBLE function. • Try the MUSIC TONES PLAYBACK. • Experiment with the huge FINE TUNE SELECTON, PRESETS SELECTION! • Or create your own CUSTOM PRESETS! • And SAVE an endless amount of CONFIGURATIONS (Frequency, Sweep, Noise) for later quick access and direct playback function. • Even play back different kinds of NOISE – White, Pink, Violet, Grey, Brown, Blue is also supported. The Function Generator is AMAZINGLY INTUITIVE and SIMPLE! AND THESE ARE THE ADVANCED SETTINGS/FEATURES: => Extending The Frequency Range (1Hz - 21kHz) => Extending The Sweep Times (0.1s - 600s) => Changing Min/Max Slider Frequency Ranges => Changing Max Sweep Time Slider Range => Changing Signal Amplitude => Enabling Of The Sweep Repeat / Wobble Function => Frequency Slider Setting to Linear or Logarithmic => Left/Right Channel Individual Selection => Permanently Saving Custom Presets => Saving Of Endless Number Of Audio Configurations => Phase Out Setting (custom phase shift of the generated signal) => BPM (Beats per Minute) Feature => Dual Function Generator => MultiTone Generator (playback of up to eight individual tones) => Background Theme Selection (Light/Dark) Check out the new Tutorial page: www.ee-toolkit.com/audio-function-generator

About

hapjam

Discover live music happening near you, from bars and breweries to patios and wineries. See who's playing now and tonight, filter by vibe, and get real-time updates on schedules and set times.

Highlights
  • Real-time venue schedules
  • Discover local performers
  • Filter venues by vibe
  • Follow favorite bands/venues
  • Customizable vibe searches
  • Get venue set times and directions
Features
Read full description

hapjam shows you live music happening right now, near you. Not arena tours — the everyday live music at the bars, breweries, patios, wineries, and restaurants around you. See who's on stage tonight, who's playing right now, how far it is, and when the music starts — all in one place, updated in real time. WHY HAPJAM • Live, not stale — real venue schedules updated continuously, so you never show up to a canceled show or last week's flyer. • Built around tonight — the feed leads with what's on now and coming up today near you, not a giant calendar to dig through. • Discover, don't search — find venues and performers you've never heard of, playing five minutes away. • Free for fans, always. WHAT YOU CAN DO • See what's playing live right now and tonight near you, sorted by distance. • Browse by area, or filter venues by vibe — on the water, breweries, outdoor, no cover. • Open any venue or performer for their full schedule, set times, and directions. • Follow your favorite bands and venues and get a heads-up when they're playing near you. • Ask for a vibe — "acoustic on a patio, no cover" — and get real picks from what's actually on tonight. FOR VENUES & PERFORMERS Own a venue or play out? Get listed free, claim your page, and put your live schedule in front of people the moment they're deciding where to go tonight. Live music happening right now, near you. Open hapjam and go.

Screenshots

Audio Function Generator PRO4 screens
hapjam4 screens

Verdict

The call

The clearest difference is price: hapjam at Free against Audio Function Generator PRO's $9.99. hapjam also leads on rating (5.0 vs 4.8). Audio Function Generator PRO's advantage is ratings volume (269 vs 4). On update cadence, ads, in-app purchases and monetization model 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

hapjam is free to download; Audio Function Generator PRO costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

hapjam holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Audio Function Generator PRO has 269 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Audio Function Generator PRO ships an update every 6 weeks, hapjam every 3 weeks. Both last shipped on October 29, 2026.

Scorecard3 real differences · 7 level
Audio Function Generator PRO versus hapjam: the parameters behind the verdict, then further details
ParameterAudio Function Generator PROhapjam
Price$9.99Free — better
Rating4.8 (269 ratings)5.0 (4 ratings) — better
Positive reviews87.9% of reviews—
Number of ratings269 — better4
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size13 MB5 MB
Age rating4+12+
DeveloperThomas Gruberhapjam

Customer experience

Audio Function Generator PRO

All ratings270 ratings
Positive94.8%
Neutral2.6%
Negative2.6%
Written reviews58 reviews
Positive87.9%
Neutral5.2%
Negative6.9%

hapjam

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Audio Function Generator PRO

Reported bugs

6 issues
  • Volume button issues (jumps up and down, displays wrong level)
  • Update crashes on iPad Air2 when changing screens
  • App opens AppStore repeatedly after purchase
  • Buttons don't respond, settings don't keep
  • Frequencies stick, program is useless
Show 1 more
  • App stops too much

Requested features

19 requests
  • Logarithmic sweeps and frequency slider scale
  • PWM functionality
  • Terzrauschen (third-octave noise)
  • Ping-pong sweeps in Multitone windows
  • Sweeping of noise/adding noise in Multitone sweep with sweeping bandpass filter
Show 14 more
  • Audio plugin (AU, AAX, VST)
  • Responsiveness for MacBook use
  • Simultaneous recording of generated signals
  • Panning function for tones and sweeps
  • Ability to save Multitone configurations
  • Phase shift functionality
  • Higher frequency range (up to 24kHz)
  • Dual mode sweep function
  • Taper function
  • Extended time for sweeps (6-8 hours)
  • Ability to stay at selected frequency for several minutes
  • Spectrum analyzer
  • Separate control for left and right channels
  • 8-hour program for sleep entrainment

hapjam

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Audio Function Generator PRO

No in-app purchases

None

hapjam

No in-app purchases

Questions

Is Audio Function Generator PRO free?
Audio Function Generator PRO costs $9.99, with no in-app purchases.
Is hapjam free?
hapjam is free to download, with no in-app purchases.
Which has better reviews, Audio Function Generator PRO or hapjam?
hapjam is rated higher. Audio Function Generator PRO averages 4.8 out of 5 from 269 ratings, while hapjam averages 5.0 from 4 ratings.
Do Audio Function Generator PRO or hapjam have ads?
Neither Audio Function Generator PRO nor hapjam shows ads.
Which is updated more often, Audio Function Generator PRO or hapjam?
Audio Function Generator PRO ships an update every 6 weeks, and hapjam every 3 weeks. Most recently, Audio Function Generator PRO was updated on October 29, 2026 and hapjam on October 29, 2026.

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