Black Cat Systems

Every Black Cat Systems app we track, ranked by estimated monthly revenue — portfolio-level reach and per-app estimates from live App Store signals.

Estimates are modeled ranges, not official figures · How we estimate
Apps tracked	27
Est. portfolio revenue / mo	~$4k
Est. portfolio downloads / mo	~1k
Total ratings	911
Data updated	02.08.2026

ACARS

Black Cat Systems

Downloads / mo · WW

200–900

Revenue / mo · WW

$200–$4k

★3.0(14)Released 26.08.2010

Sound Byte Cart Machine App

Black Cat Systems

Downloads / mo · WW

80–400

Revenue / mo · WW

$100–$3k

★4.0(159)Released 30.10.2010

Shortwave Broadcast Schedules

Black Cat Systems

Downloads / mo · WW

100–600

Revenue / mo · WW

$100–$3k

★4.5(238)Released 02.11.2011

SSTV Slow Scan TV

Black Cat Systems

Downloads / mo · WW

70–400

Revenue / mo · WW

$100–$2k

★3.9(147)Released 27.08.2010

DX Toolbox

Black Cat Systems

Downloads / mo · WW

30–200

Revenue / mo · WW

$50–$900

★4.4(68)Released 06.01.2012

Audio Spectrum Analyzer

Black Cat Systems

Downloads / mo · WW

20–200

Revenue / mo · WW

$30–$700

★3.9(52)Released 10.06.2010

Morse Mania

Black Cat Systems

Downloads / mo · WW

20–200

Revenue / mo · WW

$20–$500

★4.5(50)Released 30.04.2010

Morse Pad

Black Cat Systems

Downloads / mo · WW

10–60

Revenue / mo · WW

$10–$300

★3.9(28)Released 10.08.2010

HF Weather Fax

Black Cat Systems

Downloads / mo · WW

10–40

Revenue / mo · WW

$10–$300

★3.7(18)Released 01.10.2010

Drill Calc

Black Cat Systems

Downloads / mo · WW

10–50

Revenue / mo · WW

$10–$200

★4.1(19)Released 10.02.2009

Packet Pad

Black Cat Systems

Downloads / mo · WW

9–40

Revenue / mo · WW

$10–$200

★3.8(17)Released 10.08.2010

PSK31

Black Cat Systems

Downloads / mo · WW

8–40

Revenue / mo · WW

$8–$200

★3.6(15)Released 20.08.2010

Selcall Selective Calling Tone

Black Cat Systems

Downloads / mo · WW

8–30

Revenue / mo · WW

$8–$200

★3.2(14)Released 01.08.2012

NAVTEX Pad

Black Cat Systems

Downloads / mo · WW

6–30

Revenue / mo · WW

$7–$200

★1.9(12)Released 10.08.2010

76477 Complex Sound Synth

Black Cat Systems

Downloads / mo · WW

5–30

Revenue / mo · WW

$6–$90

★4.0(10)Released 17.03.2014

iFunctionGenerator

Black Cat Systems

Downloads / mo · WW

5–20

Revenue / mo · WW

$5–$90

★4.4(9)Released 14.02.2009

Atoms To Go Table of Elements

Black Cat Systems

Downloads / mo · WW

3–20

Revenue / mo · WW

$3–$60

★4.8(6)Released 02.03.2010

iUnit Measurement Conversion

Black Cat Systems

Downloads / mo · WW

3–20

Revenue / mo · WW

$3–$60

★3.7(6)Released 20.02.2009

Feld Hellschreiber

Black Cat Systems

Downloads / mo · WW

3–20

Revenue / mo · WW

$3–$50

★2.8(5)Released 28.05.2013

Godafoss Audio Spectrum Waterfall QRSS CW FSKCW

Black Cat Systems

Downloads / mo · WW

2–9

Revenue / mo · WW

$2–$40

★4.3(4)Released 12.09.2014

RF Link Calc

Black Cat Systems

Downloads / mo · WW

2–6

Revenue / mo · WW

$2–$30

★2.3(3)Released 23.01.2009

dB Calc

Black Cat Systems

Downloads / mo · WW

3–20

Revenue / mo · WW

$1–$20

★5.0(5)Released 28.01.2009

iAttenuation

Black Cat Systems

Downloads / mo · WW

1–4

Revenue / mo · WW

$1–$20

★3.0(2)Released 21.02.2009

Weather Calc

Black Cat Systems

Downloads / mo · WW

2–9

Revenue / mo · WW

$1–$20

★4.5(4)Released 25.02.2009

Photon Calc

Black Cat Systems

Downloads / mo · WW

1–2

Revenue / mo · WW

$1–$9

★5.0(1)Released 10.02.2009

iSoundex

Black Cat Systems

Downloads / mo · WW

1–4

Revenue / mo · WW

$0–$6

★2.5(2)Released 25.02.2009

Remote Control For Sound Byte Cart Machine Program

Black Cat Systems

Downloads / mo · WW

2–6

Revenue / mo · WW

★2.7(3)Released 26.05.2010