Something quirky with the iPhone Duo: Apple’s $1,999 foldable runs some apps like tiny iPhone apps

Apple's first foldable device, the iPhone Duo, has hit the market today, October 23. YouTuber Marques Brownlee's review reveals a quirky issue: many popular apps are struggling to adapt to the device's large screen. Brownlee's review, which has garnered 10 million views, shows apps behaving like on older iPhones, displaying black bars and using space inefficiently.

Google apps like Gmail and Maps have not been optimized for the Duo, while others like Spotify and Discord may stretch but remain largely unchanged. Apple's own apps, however, have been redesigned to utilize the folding display, acting as a blueprint for developers to optimize their apps. Brownlee praises the Duo's display, hinge, battery life, and software animations but criticizes its weight, camera, missing Face ID, and unoptimized apps, deeming apps as the biggest downside.

Despite the initial glitches, the Duo might be a good fit for those willing to pay $1,999 (or $3,199 for 2TB) and who mainly use apps like Spotify, Maps, X, or Discord. However, the price and performance may not justify the purchase for everyone, as most major apps are expected to be adapted within six months.