# Compound vs Jefit: a library, or a program

> Jefit gives you a database of exercises and a routine builder. Compound gives you one program, already decided. Here is how they differ.

**Source:** https://trycompound.cc/blog/compound-vs-jefit/  
**Author:** Scott Shumaker, maker of Compound  
**Published:** 2026-09-19  
**Topic:** The app (app comparison, the app, exercise selection, programming)

## In short

Jefit is a database of roughly 1,400 exercises, a routine builder, and thousands of community-shared plans, best for a lifter who wants to design and iterate on their own program. Compound is one fixed four-day routine, Pull, Push, Legs, Auxiliary, with automatic progression built in, best for a lifter who would rather train than plan. Choose Jefit if you want the tools to build a program; choose Compound if you want the decisions already made.

- Jefit's own site listed 1,295 exercises in its database and its App Store page advertises 1,400+, both checked on 2026-08-22.
- Building a routine from scratch means deciding a split, a day count, an exercise per slot, an order, a set count, a rep range, a rest length, a starting weight, and a progression rule: 9 decisions before the first set.
- A 2022 study of 30 recreational weightlifters found 94 percent trained their shoulder adductors but only 12 percent trained their external rotators, the muscles that guard the shoulder.
- Choice-overload research is genuinely mixed: a 2010 meta-analysis of 63 conditions found a near-zero average effect, while a 2015 meta-analysis of 99 observations found the effect real but dependent on how complex and uncertain the choice is.
- Compound has zero of those 9 decisions. Open the app, pick a day, and the exercises, sets, reps, rest, and weight are already set.

---

Jefit is a large exercise database, a routine builder, and thousands of community-shared
plans. Use it if you want to design and adjust your own program. Compound is one fixed
four-day routine with the exercises, order, and progression already decided. Use it if
you would rather train than plan. The rest of this comes down to which of those two jobs
you actually want.

## What is Jefit good at?

Jefit is a genuinely large exercise database attached to a genuinely capable routine
builder. Its own exercise database page listed 1,295 exercises when checked on
2026-08-22, and its App Store listing advertises "a library of 1,400+ exercises with HD
video instructions and animations." Either number is a real library, not a marketing
rounding error: barbell, dumbbell, machine, kettlebell, and cardio movements with form
video attached to each one.

The routine builder is a full web-based editor with drag-and-drop day reordering, custom
rest timers, superset grouping, and the ability to tag warm-up, drop, and failure sets on
individual exercises. Presets exist to speed up the blank page: pick a training Focus
(maintaining, bulking, cutting, sport-specific) and a Level (beginner, intermediate,
advanced) before you start filling in days. Once a routine is built, it downloads
straight to the phone app to train from.

The community layer is the part a fixed program cannot offer at all. Jefit's own routine
database showed over 28,000 plans in one filtered view and claims 555,000 routines
site-wide, checked 2026-08-22, built by other lifters and by Jefit's own training team,
searchable and downloadable into your own app. For a lifter who already knows how to
train, or who wants to browse what other people run, that is a real asset, and Jefit
being a long-running app with a database this size is not nothing.

## What does a blank library ask you to decide before your first set?

It asks you to make nine decisions, in order, before you have trained once.

1. Which split: full body, upper/lower, push/pull/legs, or something else.
2. How many days a week.
3. Which exercise fills each slot, chosen from over a thousand options or borrowed from
   someone else's shared routine.
4. What order the exercises run in.
5. How many sets per exercise.
6. What rep range per exercise.
7. What rest length between sets.
8. What starting weight.
9. How and when to add load: by how much, and on what signal.

A routine builder with Focus and Level presets makes the first two of these faster. It
does not make the other seven disappear. Somebody still has to decide whether the row
comes before or after the bench press, whether three sets is enough for the rear delts,
and what "add load" means for a lift that keeps grinding out reps in the same range
every week. That is the job a library hands you, and it is a job you are being asked to
do with the least experience you will ever have.

## Does having more exercises to choose from make you choose better?

Not automatically, and the research on this is genuinely mixed rather than settled in
either direction. A 2010 meta-analysis pooling 63 conditions from 50 experiments found
a mean effect of assortment size on choice satisfaction and motivation close to zero,
with wide variation between individual studies: some found real overload, others found
none, and a few found the opposite, more options making people more satisfied with
their pick. That null-on-average result was itself controversial and prompted further
analysis rather than settling the question.

A 2015 meta-analysis of 99 observations reached a more moderated conclusion: choice
overload is real, but it depends on four things, how complex each option is to evaluate,
how hard the decision task itself is, how uncertain you are about your own preferences,
and what you are trying to accomplish. Put the two together and the honest summary is
that a bigger assortment does not reliably help or hurt the average shopper choosing
between jars of jam. But a four-day strength program assembled from a library of 1,400
exercises, each with its own rep range, rest length, and role in a weekly balance you
cannot see all at once, sits squarely in the complex, high-uncertainty territory where
the effect shows up.

## What does a self-assembled program tend to get wrong?

Left to pick and choose, a program tends to overtrain the exercises that feel good and
undertrain the ones that do not, and it has no built-in check to notice.

The clearest evidence for this is in the shoulder. A 2022 cross-sectional study measured
isokinetic shoulder strength in 30 male recreational weightlifters against 30
non-lifting controls. Ninety-four percent of the weightlifters trained their shoulder
adductors, the muscles that pull the arm across the body in a press or a fly, while only
12 percent trained their external rotators, the small muscles that stabilize the joint.
The result showed up directly in strength: an external-to-internal rotator ratio of 0.81
in the weightlifters versus 1.08 in the controls, a measurable imbalance the researchers
tied to shoulder injury risk. Nobody chose to skip external rotation work. It is simply
the kind of unglamorous, low-weight exercise that gets left off a self-built list.

The same pattern shows up in whether the program gets followed at all. A 2014 systematic
review of nine prospective studies on exercise adherence found completion rates ranging
from 65 to 86 percent, and adherence was consistently higher in supervised programs than
in ones people were left to run on their own. Compound is not supervision in the
clinical sense. But it removes the same variable supervision removes: nobody has to
design the session before they can do it.

And a program with no mechanism to check itself will quietly drift. Nothing stops eight
chest exercises and no rows from feeling reasonable one exercise at a time. Nothing flags
that a heavy deadlift and a heavy squat sitting on back-to-back days share too much
lower-back and central nervous system fatigue to recover between them. Nothing keeps the
neck, the grip, or the tibialis on the list once the flashier lifts start eating the
clock.

## How does Compound's plan avoid the same mistakes?

It avoids them because the order and the balance are fixed in the code, not left to
whoever is building the routine that day.

The four-day order is Pull, Push, Legs, Auxiliary, and that order is deliberate: pull
comes before push before legs so the heavy deadlift and the heavy squat-and-RDL day are
separated by push, because they share too much lower-back and CNS fatigue to sit back to
back. On Legs day, the leg press sits after the Bulgarian split squat on purpose, not
before it: a pre-fatigued split squat gets wobbly, and the leg press is the safest place
in the day to still be tired, seated, back supported, feet fixed. It is also the only way
to load the quads again without asking more of a low back that already carried the squat
and the RDL.

The Auxiliary day exists specifically to carry the small work a self-assembled program
drops first. It alone holds the Farmer's Carry and the Suitcase Carry, three and two sets
respectively, and four sets of 20-second isometric neck holds in every direction, front,
back, left, right, the only neck work in the week. Band External Rotations get three
sets of 15 per arm for the rotator cuff. Grip gets reinforced twice more elsewhere: Dead
Hangs on Pull day and Reverse Curls at two sets of 12 to 15. The tibialis gets its own
two sets of 15 to 20 reps on Legs day. None of it is glamorous, and that is exactly why
it needs a place on the schedule that does not depend on anyone remembering to add it.

## How do the design decisions compare?

Six decisions, side by side: who makes the call, and what happens by default.

| Decision | Jefit | Compound |
|---|---|---|
| Who picks the exercises | You, from a database of 1,400+, or a downloaded community routine | The plan. Your only choices are between a few interchangeable options inside certain slots, like barbell row or seated cable row |
| Decisions before your first set | Split, days per week, exercise per slot, order, sets, reps, rest, starting weight | None. Open the app, pick a day, start |
| What enforces balance across the week | Nothing automatic. Balance is your own read of the routine you built or downloaded | The fixed day order and each day's slot list |
| Who decides the weight | You, every session | Automatic double progression: add a rep until the top of the range, then add the smallest plate jump |
| Where the data lives | Jefit's servers, tied to an account | A file in Application Support, on the device, no account, no network |
| What happens with no signal | You browse the database or a shared routine and guess | Ramp-up sets at 40, 60, and 80 percent of last session's working weight |

## Who should use Jefit instead?

Anyone who already has a program, from a coach, a certification, or years of their own
trial and error, should use Jefit or something like it to log it. Anyone training around
an injury or a specific sport needs the freedom to swap exercises the moment something
does not agree with a joint, and a fixed plan cannot offer that. Anyone whose lift is
missing from Compound's list, a specialty barbell movement, a machine variation, a sport
skill, has no way to add it here. And anyone who genuinely enjoys programming, who likes
reading about set counts and rep ranges and testing a hypothesis about their own
recovery, should keep doing that; Jefit gives that person the tools, and Compound would
only get in the way.

## What Compound does about it

Compound's exercise list is short and fixed on purpose: four days, roughly 30 total
slots, no browsing. There is no account, no server, and no way to add an exercise that
is not already in the plan. That is the trade a fixed program makes, and it is a real
trade, not a hidden one. If your lift is not in it, the app is wrong for you, and no
amount of good programming underneath fixes that. What it does offer, to the lifter who
does not want to spend their first month designing instead of training, is a program
where every decision on that list of nine has already been made, tested against reasons
you can read in the code, and left alone.

## Common questions

### How many exercises does Jefit have?

Jefit's own exercise database page listed 1,295 exercises when checked on 2026-08-22, and its App Store listing advertises "1,400+ exercises." Exercise databases grow over time, so treat both as an order of magnitude rather than a fixed count.

### Is Jefit free?

Jefit has a free tier with ads and a limited number of Instant Workouts, and a paid Elite tier that removes ads and unlocks premium routines, full analytics, and unlimited Instant Workouts. As of 2026-08-22, Jefit's App Store listing priced Elite at $12.99 a month or $69.99 a year. Pricing varies by region and changes over time.

### Can I build my own program in Compound?

No. Compound runs one fixed four-day plan: Pull, Push, Legs, Auxiliary. The only choices are between a small number of interchangeable options inside certain slots, such as barbell row versus seated cable row, and even those carry their own progression rather than opening up the whole database.

### Does having more exercises to choose from make a program better?

Not automatically. Choice-overload research is mixed: a large meta-analysis found the average effect of more options on decision quality is close to zero, while a later meta-analysis found a real effect once you account for how complex and uncertain the decision is. A four-day strength program built from thousands of exercises is exactly the kind of complex, uncertain choice where the effect tends to show up.

### Which app should I use if I am training around an injury or a specific sport?

Jefit. Its database and routine builder let you swap in whatever your physical therapist or coach prescribes. Compound's exercise list is short and fixed, so a lift you need that is not already in the plan has no way in.


## Sources

- [Scheibehenne, Greifeneder & Todd (2010): Can There Ever Be Too Many Options? A Meta-Analytic Review of Choice Overload](https://scheibehenne.com/ScheibehenneGreifenederTodd2010.pdf)
- [Chernev, Böckenholt & Goodman (2015): Choice Overload: A Conceptual Review and Meta-Analysis](https://chernev.com/wp-content/uploads/2017/02/ChoiceOverload_JCP_2015.pdf)
- [Picorelli et al. (2014): Adherence to Exercise Programs for Older People Is Influenced by Program Characteristics and Personal Factors](https://pubmed.ncbi.nlm.nih.gov/25092418/)
- [Isokinetic Assessment of Shoulder Joint Strength Ratios in Male Recreational Weightlifters: A Cross-Sectional Study (2022)](https://pubmed.ncbi.nlm.nih.gov/35733448/)
- [Jefit exercise database (verified count, 2026-08-22)](https://www.jefit.com/exercises)
- [JEFIT Workout Plan Gym Tracker, App Store listing](https://apps.apple.com/us/app/jefit-workout-plan-gym-tracker/id449810000)
- [Jefit workout routine database](https://www.jefit.com/routines)
- [Jefit routine builder](https://www.jefit.com/build-routine)
- [Jefit FAQ, Elite plan](https://www.jefit.com/support/faq)

---

*Scott Shumaker, maker of Compound. Builds Compound, an iPhone and Apple Watch app that runs one lifting program and does the bookkeeping. Trains on the pull, push, legs and auxiliary split, and wrote the progression engine described here.*

*Compound: A workout app with exactly one workout in it. Four days, automatic double progression, warm-up and mobility built in. No account, no cloud. https://trycompound.cc*