FreqCraft.app VS Diffyn

FreqCraft.app's answer

Every Hz is visible and editable — set any carrier and beat frequency to the decimal, across four real waveforms (sine, square, triangle, sawtooth). Up to five simultaneous voices, each with its own carrier, beat, waveform and level envelope. It is a true generator, not a preset player. It has no internet permission, so it physically cannot track you or send data anywhere — everything runs offline. One-time purchase, no subscription. And it is transducer-ready: clean low-frequency output can drive tactile transducers, not only headphones.

Diffyn's answer:

Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.

FreqCraft.app's answer

Most alternatives are ad-supported, subscription-gated, or cloud-dependent. FreqCraft is a one-time purchase with no ads, no account, no tracking, and no internet permission at all. You get full manual control over the signal instead of a fixed set of presets, and it keeps playing without seizing audio focus, so it layers under music, podcasts, or video. Precision and privacy over lock-in.

Diffyn's answer:

Diffyn is the platform that specializes on both change management and multi-model analysis.

FreqCraft.app's answer

Built natively for Android with Flutter and Dart, with a Kotlin audio engine handling the frequency synthesis. No backend and no network layer — everything runs on-device.

Diffyn's answer:

React, Next.js, POSTGRESQL

FreqCraft.app's answer

People who want precise, hands-on control over entrainment frequencies rather than a fixed preset experience — including former Brainwave Generator (BWGen) users, and anyone driving tactile transducers or building their own audio setup. It is a technical tool for users who value privacy, offline operation, and one-time ownership over subscriptions.

Diffyn's answer:

Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.

FreqCraft.app's answer

FreqCraft is a modern successor to Brainwave Generator (BWGen), the long-abandoned Windows desktop tool that never made it to mobile. It was rebuilt natively for Android as a precise, fully offline generator — keeping the deep manual control BWGen was known for, but without ads, subscriptions, or data collection.

Diffyn's answer:

I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.