Comparison
Pull-Ups vs Chin-Ups
One movement, two grips: palms away is a pull-up, palms toward you is a chin-up. Almost everyone finds the chin-up easier.
| Pull-Ups | Chin-Ups | |
|---|---|---|
| Muscles | lats, biceps, mid back, grip | lats, biceps, mid back |
| Equipment | Pull-up bar | Pull-up bar |
| Entry bar | 2/3 give the technique a couple of weeks | 2/3 give the technique a couple of weeks |
| Pick it when | You want more back and rear delts. | You want more biceps or can only do a few reps so far. |
The main difference
With an underhand grip the biceps join in more, the elbows travel along your sides, and most people get 1–3 more reps. The overhand grip is a bit wider, puts the biceps in a weaker position and shifts more of the work to the lats and rear delts. Both are good for the back — the lats work in both; if your elbows or wrists complain about one grip, use the other or a neutral grip.
Can you do both
Yes: alternate grips between sessions or do both on one day. While pull-ups are still hard, chin-ups help you build pull-up volume.
In which programs
Log both in the diary — your estimated max will show which one is growing faster for you.

