Comparison

iFunctionGenerator vs KCSDI

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

Head to head
About

iFunctionGenerator

This utility transforms your iOS device into a versatile audio function generator. Create up to 20 independent generators producing various waveforms and noise types, with precise control over frequency, volume, and phase for each channel. Save and recall your settings for quick access.

Highlights
  • Multiple waveform generation (sine, triangle, sawtooth, square)
  • Pink and white noise generation
  • Up to 20 independent generators
  • Independent left/right channel volume control
  • Adjustable frequency from 1 to 20,000 Hz
  • Phase control
  • Save and load generator settings
Features
Read full description

iFunctionGenerator turns your iPhone, iPad, or iPod Touch into an audio function generator. You can have up to 20 generators, each operating at a different frequency. Each generator can be one of the following types: • Sine Wave • Triangle Wave • Sawtooth Wave • Square Wave • Pink Noise • White Noise The volume of the left and right channels can be independently controlled, and may be set using either a slider for ease, or direct entry of the volume, for maximum precision. The relative phase of each channel may also be set. Frequencies from 1 to 20,000 Hz may be entered. The phase can vary between -360 to 360 degrees. The volume may be between 0 and 100 percent. The mute button makes it easy to quickly silence the audio generators. You can take snapshots of the generator settings. This lets you build a library of settings, and quickly load the desired settings.

About

KCSDI

Features
Read full description

Software for Measall instrument, Enhance your instrument for more comfortable measurements.

Screenshots

iFunctionGenerator3 screens
KCSDI4 screens

Verdict

The call

The clearest difference is price: KCSDI at Free against iFunctionGenerator's $2.99. KCSDI also leads on update cadence (every 3 weeks vs every 12 months). iFunctionGenerator's advantage is iOS requirement (6.0 vs 15.5). On ads, 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

CostPrice · In-app purchases · Ads · Monetization

KCSDI is free to download; iFunctionGenerator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iFunctionGenerator ships an update every 12 months, KCSDI every 3 weeks. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 7 level
iFunctionGenerator versus KCSDI: the parameters behind the verdict, then further details
ParameteriFunctionGeneratorKCSDI
Price$2.99Free — better
Rating4.4 (9 ratings) — better—
Positive reviews53.3% of reviews—
Number of ratings9 — better—
Update frequencyEvery 12 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better15.5
Further details — not scored
Size1 MB31 MB
Age rating4+17+
DeveloperBlack Cat SystemsChengdu KeChuang Institute of Science and Culture

In-app purchases

None

iFunctionGenerator

No in-app purchases

None

KCSDI

No in-app purchases

Questions

Is iFunctionGenerator free?
iFunctionGenerator costs $2.99, with no in-app purchases.
Is KCSDI free?
KCSDI is free to download, with no in-app purchases.
Do iFunctionGenerator or KCSDI have ads?
Neither iFunctionGenerator nor KCSDI shows ads.
Which is updated more often, iFunctionGenerator or KCSDI?
iFunctionGenerator ships an update every 12 months, and KCSDI every 3 weeks. Most recently, iFunctionGenerator was updated on September 17, 2026 and KCSDI on September 9, 2026.

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