Polisher saves your time as well as the elbow grease. You can still work with hand.
The Meguiars synthetic sealant is for 3099 PKR.
You can use simple foam applicators for that.
When you wash your car and wax it. After that when going to apply the sealant. Proper way to apply the sealant.
1. Make up and down motion first.
2. Now make left and right motion.
3. Now use circular motion.
Use all these three motion types on each panel.
When you wipe off the sealant. Make sure to use good quality mf cloth.