OpenAI pulled the plug on its Sora video app in March after discovering the service was too costly to run. The free offering strained resources, prompting the company to refocus on ChatGPT and Codex. With Sora gone, developers rushed to fill the void in the App Store.

Two new standalone AI video generators have surged up the charts. Kling AI, only three months old, now sits at #5 among free downloads and tops the Graphics & Design category. Its competitor, AI Video from HUBX, climbs to #6 and claims the top spot in Photo & Video, targeting creators of viral clips.

The rise of Kling AI and AI Video reflects a broader shift toward AI‑generated video content on iPhones. While scripters like Gemini and Grok also offer text‑to‑video features, these two apps focus exclusively on the video workflow, giving users a dedicated tool for quick production.

With major players such as OpenAI, Anthropic, Google, and Meta still ahead in the rankings, Kling AI and AI Video demonstrate that niche, cost‑effective solutions can capture significant market share. Their success underscores the appetite for instant, AI‑powered video creation among mobile users.