Yes, and in many cases, they deliver even better performance. Android fax apps send your documents digitally, eliminating the risk of busy signals or failed transmissions. The image quality is often higher, since you can upload PDFs or high-resolution scans directly from your phone or cloud storage.
When I compared different services on https://complianceintel.com/ , I was surprised by how advanced some of them have become. They even provide delivery confirmations and automatic retries, so your faxes always go through. It’s a faster and far more dependable alternative to public fax services.