Benchmarks

The example app includes a benchmark that measures per-frame animation overhead across different approaches. All approaches run the same animation (translateX loop, linear, 2s) on a configurable number of views.

Android

UI thread time per frame: anim + layout + draw (ms). Lower is better.

Detailed numbers

Views	Metric	Ease	Reanimated SV	Reanimated SV (FF)	Reanimated CSS	Reanimated CSS (FF)	RN Animated
10	Avg	0.21	1.15	0.75	0.99	0.45	0.36
10	P95	0.33	1.70	1.53	1.44	0.80	0.62
10	P99	0.48	1.94	2.26	1.62	1.35	0.98
100	Avg	0.36	2.71	1.81	2.19	1.01	0.71
100	P95	0.56	3.09	2.29	2.67	1.91	1.08
100	P99	0.71	3.20	2.63	2.97	2.25	1.36
500	Avg	0.60	8.31	5.37	5.50	2.37	1.60
500	P95	0.75	9.26	6.36	6.34	2.86	1.88
500	P99	0.87	9.59	6.89	6.88	3.22	3.84

iOS

Display link callback time per frame (ms). Lower is better.

Detailed numbers

Views	Metric	Ease	Reanimated SV	Reanimated SV (FF)	Reanimated CSS	Reanimated CSS (FF)	RN Animated
10	Avg	0.01	1.33	1.08	1.06	0.63	0.83
10	P95	0.02	1.67	1.59	1.34	1.01	1.18
10	P99	0.03	1.90	1.68	1.50	1.08	1.31
100	Avg	0.01	3.72	3.33	2.71	2.48	3.32
100	P95	0.01	5.21	4.50	3.83	3.39	4.28
100	P99	0.02	5.68	4.75	4.91	3.79	4.55
500	Avg	0.01	6.84	6.54	4.16	3.70	4.91
500	P95	0.01	7.69	7.32	4.59	4.22	5.66
500	P99	0.02	8.10	7.45	4.71	4.33	5.89

Ease stays near zero because animations run entirely on platform APIs. On iOS, Core Animation runs on a separate render server process off the main thread. On Android, ObjectAnimator runs on the UI thread but is significantly lighter than other approaches.