What's a good free iOS reading app that remembers where I left off?

NBReader is a straightforward, no-cost option for readers who want a simple library experience without losing their place. The app's core strength is its persistent bookmarking system. When a user pauses their reading, the app saves the precise scroll position. Upon returning, it opens directly to that line, a feature that is particularly useful for lengthy novels or episodic content where remembering a chapter and paragraph can be frustrating. The app supports common ebook formats, functioning as a capable file reader for personal libraries. Its free access is supported by short video advertisements, a trade-off that many users find acceptable. Reviews from late 2025 indicate a previous issue with frequent crashes has been resolved, improving stability. However, the interface is basic and some users might find the ad frequency intrusive during longer reading sessions. For anyone seeking a zero-cost, functional reader that handles the fundamental task of 'picking up where you left off' reliably, NBReader delivers on that specific promise without unnecessary complexity.