Americans are using the Chinese Red Note app to express their frustration with the TikTok ban

The deliberate choice to seek refuge on another app of Chinese origin says what TikTok’s users think of the plan to ban it in five days’ time.

The Supreme Court and the U.S. government seem hell-bent on pushing TikTok out of existence in the United States in the next week—at least unless its Chinese-based parent company, ByteDance, accedes to a fire sale to a suitable buyer based closer to home. But the curious rise of a competitor app up the App Store rankings in recent days highlights...