Spirangle is a delay app developed by Neon Silicon LLC for iPhone users. This free app offers users two different types of delays, making it a versatile tool for musicians and audio enthusiasts.

The first delay in Spirangle is a three-tap delay. This feature allows users to create intricate delay patterns with three independent taps. Each tap can be individually adjusted and controlled, offering a high level of customization. Additionally, the app includes SVF filters with adjustable resonance and drive, allowing users to shape the sound of each tap.

The second delay in Spirangle is a feedback delay. The three taps from the first delay can be routed to the feedback delay mix section, where they can be further processed and blended. The mix section also includes an input that sums up the three delay taps after the filters, adding even more flexibility to the sound design possibilities.

To enhance the overall sound, Spirangle includes a stereo effect unit. This unit offers various modulation effects such as LFO driven panning, chopping, tremolo, and left-right ping-pong manipulation. These effects can be applied to the output of the feedback delay, adding movement and depth to the delayed signal.

With its unique combination of delay types and advanced features, Spirangle is a powerful tool for musicians, producers, and sound designers. Whether you're looking to create complex delay patterns or add depth to your audio productions, Spirangle offers a wide range of possibilities.