Apps like Sound Signal Generator 2

Here are some great alternatives to Sound Signal Generator 2 by android-design.nl :
Multi-Frequency Tone Generator
Multi-Frequency Tone Generator
★4.3
Tone Generator: Frequency & So
Tone Generator: Frequency & So
★3.8
Frequency sound generator
Frequency sound generator
★3.6
Frequency Sound Generator
Frequency Sound Generator
★4.7
Frequency Generator (Sound)
Frequency Generator (Sound)
★3.8
Sound Generator
Sound Generator
★4.4
Tuning Fork
Tuning Fork
★4.2
Frequency Sound Generator
Frequency Sound Generator
★4.3
PSG9000 Signal Generator
PSG9000 Signal Generator
★3.6
SoundForm Signal Generator
SoundForm Signal Generator
★4.6
Frequency Generator
Frequency Generator
★4.1
AudioFrequencySignalGenerator
AudioFrequencySignalGenerator
★4.0
Frequency Sound Generator
Frequency Sound Generator
★4.3
Frequency Sound Generator
Frequency Sound Generator
★3.9
Sound Frequency Creator
Sound Frequency Creator
★4.0
ToneGen Tone Generator
ToneGen Tone Generator
★4.0