Acid Interval: Focus Timer
Pomodoro timer for deep work
About
This focus timer offers a visually unique approach to deep work, moving away from traditional interfaces. It provides customizable timers and engaging visual feedback to help users stay on task, even with the screen off. The app prioritizes a distraction-free experience with no account or data syncing required.
What's New in Acid Interval
1.0
September 29, 2026
Subscriptions & In-App Purchases
$2.99
Acid Interval Pro
All mechanisms, colors and custom lengths.
FAQ
What is Acid Interval?
Acid Interval is a focus timer designed for deep work, featuring a unique visual interface and customizable intervals. It aims to provide a more engaging and less conventional experience than typical countdown timers.
Does Acid Interval have ads?
No, Acid Interval does not contain advertisements. The core timer functionality is free, and users can unlock additional features through a one-time purchase.
What are the timer options in Acid Interval?
Acid Interval offers classic Pomodoro (25/5), longer ultradian blocks (50/10, 90/20), and an open-ended flow mode for users who prefer no set deadlines.
Can Acid Interval notify me when a session is done with the screen off?
Yes, Acid Interval is built to provide notifications even when the screen is off, ensuring you are alerted when your focus session is complete.
What makes Acid Interval's interface different?
Instead of a spreadsheet-like display, Acid Interval features a large, prominent numeral with dynamic, animated backgrounds that react to the timer. Users can change these visual mechanisms and colors with simple gestures.
Is there a paid version of Acid Interval?
Yes, Acid Interval Pro is available as a one-time purchase. This unlocks all eight visual mechanisms, seven color themes, and the ability to set custom interval lengths.
Does Acid Interval collect user data?
No, Acid Interval emphasizes privacy. It requires no account, no syncing, and no data leaves your phone, ensuring a secure and private user experience.
How often is Acid Interval updated?
Acid Interval was last updated on September 29, 2026, with version 1.0. As a new release, future updates will likely focus on refining features and potentially adding new content based on user feedback.
