VoiceOver (Apple) and TalkBack (Android)
full screen readers already on any iPhone/iPad/Mac or Android device, no purchase needed. Also worth knowing: iOS/macOS have separate Zoom and Magnifier features that work alongside VoiceOver rather than instead of it, which suits someone with retained peripheral vision better than a pure audio-only screen reader.
Seeing AI (Microsoft, free, iOS) points a phone camera at printed text, documents, or products and reads them aloud; also does currency and basic scene description. Genuinely well-regarded and free is a big deal here.
Be My Eyes (free) : connects to sighted volunteers or an AI assistant via video call for anything the automated tools can't handle, reading a label, checking a stove dial, sorting mail.