Limits

Limits is an iPhone app built for developers who use multiple AI coding assistants throughout the day and want to know exactly where their usage stands at any moment. It tracks session and weekly quotas across services like Codex, Claude Code, and Cursor, giving you real time visibility into how much capacity remains before a rate limit kicks in and slows you down. The app surfaces that information through home screen and lock screen widgets, so you can check your remaining allowance at a glance without unlocking your phone or opening an app. For anyone who has been surprised by a sudden block mid session because they blew through their allowance without realizing it, this solves the guessing game around how much you've used and how much you have left to work with before the next reset.

The problem Limits addresses is one of attention and workflow continuity. Each AI coding tool has its own usage policy, reset schedule, and quota structure, and none of them make that information particularly easy to access at a glance. Codex works differently from Claude Code, which works differently from Cursor. Keeping track of all that manually means either constantly checking each service's dashboard in a browser tab or just hoping you don't hit a wall at an inconvenient moment. Limits consolidates that information into a single view. You get a unified dashboard that shows your standing across every connected service, updated automatically through background refresh. The widgets come in ring and bar styles, so you can choose a layout that fits your home screen aesthetic and gives you the information density you prefer without cluttering your screen.

Authentication is handled carefully, with an architecture designed around privacy. The app doesn't collect your credentials directly or store them on its own servers. Instead, it routes you through each provider's official login flow in Safari, where you authenticate on the provider's own page and grant read access. The resulting tokens are stored in the iOS Keychain, encrypted on device, and Limits only uses those tokens to hit read only usage endpoints. It cannot send messages, execute code, or modify your subscription. No data passes through the developer's servers at any point. There are no analytics SDKs, no ad tracking, and no user profiling bundled into the app. If privacy is a concern when connecting third party apps to your AI tool accounts, this architecture is designed to minimize exposure and keep everything local to your device.

The free tier covers the essentials and is genuinely usable without paying. You get widgets, multi provider tracking, and alerts when your limits reset. The Pro upgrade adds predictive warnings, which is where the app becomes more proactive about helping you manage your workflow. Instead of just telling you when a reset happened, Pro monitors your usage trajectory and warns you when you're on pace to exhaust your quota before the next reset window arrives. If you're deep in a coding session and want to know whether you can keep going at your current pace or should slow down to preserve capacity for later in the day, that forecast can save you from an unexpected interruption. Pro also surfaces expiring Codex reset credits with countdown timers, so you know when free rate limit resets are about to disappear and can use them before they expire.

The target audience is fairly specific and won't appeal to everyone. You need to be using AI coding tools frequently enough that rate limits actually affect your workflow in practice. If you touch Claude Code once a week, you probably don't need a dedicated tracker for it. But if you're bouncing between Cursor and Codex throughout the day and treating these tools as core infrastructure for how you write and review code, the visibility Limits provides starts to matter. It's especially useful during crunch periods when you're leaning hard on AI assistance and don't want to discover you've burned through your quota at the worst possible time, like right before a deadline or in the middle of debugging a production issue.

Limits is available on the App Store for free download. The developer, Pranav Karthik, provides support through email and appears to be actively expanding the app based on user requests. Grok and Antigravity are listed as coming soon on the product page, which suggests the provider list will grow as the AI coding tool landscape continues to shift and new services gain traction. The app does one thing well, it tracks your limits and keeps you informed, and it does it entirely on device without requiring trust in a third party server. For developers who value that combination of focused utility and privacy conscious design, it fills a gap that the AI tool providers themselves haven't addressed with their own native limit tracking features.