head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Pure Mechanics
A comedic reflex platformer testing jump timing against fast obstacles.

Execution · Pure Mechanics
The defining mobile endless runner of swiping past cliffs, roots, and flames at increasing speed.
Montaro : RE leans Execution (Pure Mechanics); Temple Run leans Execution (Pure Mechanics).
Montaro : RE leans a little harder on execution, though the gap is small.
Montaro : RE
Reflex jumping and timing carry this runner-platformer
Temple Run
Swipe reactions at ever-rising speed
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Montaro : RE
No adaptive opponent in a solo arcade game
Temple Run
The demon monkeys never adapt
Temple Run leans a little harder on variance, though the gap is small.
Montaro : RE
Some procedural obstacles add randomness
Temple Run
Procedural track segments each run
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Montaro : RE
Little to solve beyond reacting to obstacles
Temple Run
Powerup upgrades and segment recognition help
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.