Why it's on this list
Boostcamp's Upper/Lower library covers a real range of the split rather than one template. Alberto Nuñez's program (an IFBB Pro natural bodybuilder) is built for physique-focused hypertrophy with carefully chosen per-muscle volume. Fazlifts' Barbarian is a higher-volume version for lifters with strong recovery who want maximum stimulus per session. Bill Wong's template sits in the moderate-volume middle and is the best default for a first Upper/Lower block. Basement Bodybuilding's version leans into traditional bodybuilding structure, and its home-gym variant adapts the same split to a dumbbells-and-rack setup. All five run free, with auto-progression built in.
The tracker is built around what actually separates a good Upper/Lower block from a mediocre one: posterior-chain and isolation volume on top of the two main compounds per session. RIR sits on every set so you can manage proximity to failure across the twice-weekly frequency, supersets and drop sets render natively for accessory-heavy Upper days, and the weekly reports (with Pro's per-muscle volume heatmap) show whether arms, side delts, hamstrings, and glutes are actually getting direct volume rather than just the two big compounds.
StrengthLog and Alpha Progression both offer genuine Upper/Lower structure of their own, one through named built-in programs, one through a generator. Boostcamp's edge is breadth: four distinct coach-built variants (plus a home-gym adaptation) in one free library, versus a single template or an algorithm's output. Pro adds the Strength Score, the per-muscle volume heatmap, and 20+ exclusive coach programs for $59.99/year ($4.99/month annual), none of which is required to run any of the five UL programs.
Why it's on this list
StrengthLog's built-in program library includes four distinct named Upper/Lower templates, more structured Upper/Lower content than any other app on this list besides Boostcamp. Upper/Lower Body Split Program (4x/week) is the standard version built around getting stronger on the compound lifts while also driving hypertrophy. Upper/Lower Machine Program is a machine-only 4x/week variant for intermediate lifters without full barbell access. The 6-Day Upper/Lower program is a 9-week high-frequency hypertrophy template for intermediate to advanced lifters. PPLUL (Push/Pull/Legs/Upper/Lower) is a 5x/week hybrid that hits every muscle group twice with high-volume hypertrophy work early in the week and heavier compound work later.
All of StrengthLog's programs, including the Upper/Lower templates, are free to download and follow inside the app, and the tracker itself (set logging, personal records, plate calculator) carries no paywall on the core logging experience. For lifters who specifically want a machine-only or a 5-day hybrid variant of the split that Boostcamp does not carry as a named program, StrengthLog is the strongest alternative here.
Why it's on this list
Alpha Progression's program generator lets you pick Upper/Lower directly as a split structure, alongside Push/Pull/Legs and Full Body, then builds a science-based routine from a 690+ exercise database tuned to your training frequency, equipment, and experience level. The app maintains a dedicated glossary entry on the Upper/Lower split explaining the standard 4-day cadence and how to adapt it to 3, 5, or 6 days a week while keeping each muscle group trained at least twice. Built-in periodization handles deload weeks automatically, and per-muscle weekly volume is tracked and used to adjust future sessions.
The tradeoff against Boostcamp's named coach programs is that Alpha Progression's Upper/Lower routine is generated by the app's algorithm rather than authored by a named coach, so there is no equivalent to picking a specific coach's program by name. For lifters who want an algorithm-built Upper/Lower routine with rigorous per-muscle volume management and don't need a specific coach's template, Alpha Progression is a genuine alternative.
#4
Upper/Lower 4 Day Gym Bodybuilding Split Workout
Why it's on this list
Upper/Lower 4 Day Gym Bodybuilding Split Workout (by developer Shane Clifford) is a single-purpose app built around one fixed 4-day Upper/Lower routine that mixes heavy compound lifts, machines, and cables, including 3-second negative reps as a built-in technique. It ships exercise guides with text and video, workout scheduling with push notifications, and weight-tracking charts, and it is entirely free with no in-app purchases.
Its App Store footprint is small (4.4 stars from 25 US ratings), well below the review counts of the other apps on this list, so treat it as a niche, narrowly-scoped option rather than a heavily validated one. For a lifter who wants exactly one fixed Upper/Lower routine handed to them with zero setup or program selection, and does not need a library, RPE/RIR logging, or cross-program history, it does that one job for free.
