What is the best alternative to Diagnosaurus® DDx on iPhone?

DSM-5-TR® Diagnosis Handbook, A tier, #2 in medical diagnosis.

Is there a free alternative to Diagnosaurus® DDx?

Yes: DSM-5-TR® Diagnosis Handbook (A tier, #2) is free to download, with in-app purchases.

No. Diagnosaurus® DDx is #1 in medical diagnosis.

Diagnosaurus® DDx is S tier, #1 of the 6 tiered apps in medical diagnosis. Here is everything that competes with it on iPhone, in tier order.

2
DSM-5-TR® Diagnosis HandbookA
Free + IAP · ★ 4.5 · 1,770 ratings · score 88
Interactive decision trees and differential diagnosis tables for narrowing psychiatric conditions using the DSM-5-TR.
3
First Stop HealthC
Free download · ★ 4.9 · 5,467 ratings · score 69
Virtual access to a board-certified physician by phone or video, offered as an employee benefit.
4
AultmanNow: Online Dr Visit!C
Free download · ★ 4.9 · 1,650 ratings · score 67
Mobile video visits with board certified doctors, available 24/7 without an appointment, for common health issues.
5
Dockti - Med. Symptom CheckF
Free + IAP · ★ 3.1 · 30 ratings · score 25
Stores personal medical files and family profiles, and suggests possible diseases from entered symptoms.
6
HealthAssistanceF
Free download · ★ n/a · 0 ratings · score 0
Lets you enter symptoms to get suggestions for possible diseases, based on Mayo Clinic Diagnosis Guidance.

What is the best alternative to Diagnosaurus® DDx on iPhone?: DSM-5-TR® Diagnosis Handbook, A tier, #2 in medical diagnosis.
Is there a free alternative to Diagnosaurus® DDx?: Yes: DSM-5-TR® Diagnosis Handbook (A tier, #2) is free to download, with in-app purchases.
Does anything rank above Diagnosaurus® DDx?: No. Diagnosaurus® DDx is #1 in medical diagnosis.