Boostcamp
Why it's on this list
Boostcamp hosts community-uploaded Sheiko routines as named programs, including the canonical numbered cycles (#29, #30, #31, #32, and #37 are the most referenced). They run free, with loads calculated from your 1RM. Boostcamp's program-publishing model is the reason its catalog carries Sheiko at all: coaches and lifters keep uploading the cycles, where most general apps have none.
Sheiko's defining trait is volume and frequency. Sets and reps are prescribed at fixed percentages, often four or more sessions a week, with the same lifts trained repeatedly, and crucially there is no AMRAP feedback loop. So the tracking job is staying on top of a high session count and watching weekly tonnage rather than chasing a top set. Boostcamp logs each prescribed set against its percentage, the plate calculator absorbs the constant load changes, and the weekly reports surface the volume trends that tell you whether a block is sustainable. RPE and RIR are available if you want to layer autoregulation on top.
Because the cycles sit in the same library as 5/3/1, nSuns, and 11,000+ other programs, a Sheiko block, an off-season hypertrophy phase, and a meet peak all live in one continuous history. Pro adds the Strength Score, a per-muscle volume heatmap that suits Sheiko's high tonnage, and 20+ exclusive coach programs for $59.99/year ($4.99/month annual).