Boostcamp
Why it's a real alternative
Boostcamp's free tier is the structural answer to Fitbod's paywall. 11,000+ programs (5/3/1, nSuns, Reddit PPL, GZCLP, Sheiko, and more), a full workout tracker with RPE and RIR logging, and a custom program builder are all included with no time limit. Boostcamp Pro adds the Strength Score, per-muscle volume heatmap, personalized programs, and 20+ exclusive coach programs for $59.99/year, which is less than Fitbod Elite's annual price.
The core difference is the training model. Fitbod generates each session via algorithm. Boostcamp gives you a multi-week structured program (or lets you build your own, or generates one via the personalized programs feature on Pro) and tracks progress block-over-block. If you want the planning question answered by a named methodology you can name and refer back to rather than a fresh algorithm output each session, Boostcamp's model fits that better, and the free tier removes the cost question.