ZeroStudy v1.5.0

New

• Timer profiles. Make named profiles (for example Default and Work). Each profile keeps its own session time, the subject you started with, and its own focus and break length.
• Pick a profile from Home. Tap the profile pill on the Home screen to switch. A running timer is paused and kept in its own profile.
• Manage profiles in Settings > Timer. Add, rename and delete profiles there. The Home screen now has a "Manage profiles" button that opens this page.
• Fine tune per profile. Tap a profile in Settings > Timer to change its focus length, break length and presets.

Fixed

• Editing a profile in Settings no longer selects it on the Home screen. The active profile only changes when you pick it on Home.

ZeroStudy v1.4.0

New

• Export report (PDF or PNG). The Stats tab has a new "Export report" button. Choose Daily, Weekly, Monthly or Custom, then PDF or PNG, and save a nicely designed report with the ZeroStudy logo and name, your totals, a graph or heatmap, a subject-wise breakdown, and a QR code that links to the app download page.
• Custom dates. Pick any single day or any date range (up to one year). One day gives a Daily-style report. A short range gives a day-by-day graph, and a longer range gives a heatmap.
• Weekly, Monthly and Custom reports show Total, Sessions, Daily average and Average session. The Daily average counts only the days you actually studied. Daily reports show Total, Sessions, Average session and Longest session.
• Reports follow your app theme (dark or light) and your chosen heatmap colors, and many subjects are fitted neatly into the page.

ZeroStudy v1.3.5

New

• Encrypted backups. Export now saves an encrypted .zsbackup file that only ZeroStudy can read, and Import decrypts and restores it. A file that was edited, or a plain JSON file, is rejected, so exported data can no longer be changed (for example to add study time) and imported back.

Changed

• Home: pending revisions is now one plain line ("N revisions pending") with no card. It is hidden when nothing is pending, and the next-revision date is gone.
• Plan tab: the Level box is removed, because Level is already on the home screen.
• Rain ambient sound replaced with a calm, gentle rain recording that loops without a gap.

Note

• Backups exported with v1.3.4 or older are plain files and cannot be imported anymore. Export again from this version to get an encrypted backup.

ZeroStudy v1.3.4

New

• Study heatmap colors. Settings has a new "Study heatmap" page where you pick the heatmap colors: GitHub green (default), Purple, Orange, Pink, Mono, or the app accent color. The Stats tab updates right away and the colors adapt to dark / light mode.

Changed

• Home revision card is now just a status. It shows how many revisions are pending and when the next one is due ("Next revision in N days"). The subject-wise list with Done / Forgot is only in the Revisions tab.
• Plan tab no longer shows revisions due today (the box and the list), because they are in the Revisions tab. The Level box now takes the full width.
• New defaults: timer 45 min focus + 10 min break, goals 8 h daily and 50 h weekly, alert sound Success, revision schedule 3, 7, 15, 30 days with max 3 revisions per day. These apply to new installs; your saved settings are not overwritten.
• Hyper Island in Settings now just says On / Off.

Fixed

• Rain ambient sound redone. The old rain sounded like TV static. It is replaced by a soft, slow, anime-style rain: gentle patter and small water drops with a warm, airy tone and no harsh hiss. It still loops without a gap.

ZeroStudy v1.3.3

Changed

• Plan tab: focus time removed. The top card now has just two boxes of equal size: Revisions due today and your Level, with the level progress bar inside the Level box. The focus time is still on the home screen.

ZeroStudy v1.3.2

Changed

• The whole home screen now fits on one screen, no scrolling. The timer ring uses the space that is left, so it sits higher and the content below it (subject, Today card and revisions) is visible at once. Only on very short screens does the page still scroll.
• Removed the Level pill from the top, because the Level now shows in the Today card.
• Removed the READY / FOCUS / PAUSED badge above the timer, and the word "Ready" inside the ring. While running or paused the ring still says Focus / Paused.
• Subject and chapter dropdowns share one row.
• The Today card is a compact row with Focus goal, Level and the next exam (with "+N more" when you have more exams).
• The Revise today card shows the first due chapters with Done / Forgot; the rest are in the Revisions tab.
• Slightly smaller control buttons, without the text labels under them.

ZeroStudy v1.3.1

Changed

• Cleaner home screen. The crowded row of pills at the top (streak, goal, level, sound and every exam) is gone. The top now has one slim line: streak and level on the left, the sound switch on the right. Your daily focus goal, level progress and upcoming exams moved into a calm "Today" card below the timer, so nothing is lost but the top stays light.

Fixed

• Ambient sound now loops seamlessly. When Rain or Lo-fi reached the end and started again there was a small pause and the rain had an audible jump. The loop now repeats directly in the audio hardware with no gap, and the Rain loop was smoothed so its end blends into its start.

ZeroStudy v1.3.0

New

• Plan tab (Today's plan). A new page with your checklist for the day. Add tasks (optionally tagged with a subject), tick them off, and see them move to the bottom when done. It also shows today's focus time against your goal, the revisions that are due today (with Done / Forgot buttons) and your level. Unfinished tasks from earlier days show up under "Carried over" and count for today when you tick them.
• XP and levels. You earn 1 XP for every minute of focus, 20 XP for completing a chapter (once per chapter), and 10 XP for every revision you mark Done, plus 15 XP extra when a chapter is fully mastered. Your level and progress show on the home screen and the Plan tab, and a short level-up animation plays when you reach a new level. XP for everything you already did in earlier versions is added automatically the first time you open this version.
• Ambient sound while you focus. Choose Rain or Lo-fi in Settings → Ambient sound. The loop plays only while a focus session is running, pauses with the timer and stops for breaks, even with the app in the background. It is stored in the app, so it works offline. The sound pill on the home screen switches Off / Rain / Lo-fi in one tap.
• Silent update check. Every time you open the app it quietly checks GitHub for a newer release. Nothing is shown when you are up to date or offline. When a new version exists, a small dialog offers to download it.

Changed

• The bottom bar has a sixth tab (Plan), so the labels are slightly smaller.

ZeroStudy v1.2.2

Fixed

• Hyper Island is now balanced. The compact island had everything on one side and left the other side empty. It now shows only the app icon on the left and the timer on the right, so both sides of the camera are used evenly.

Changed

• Removed the "Icon only" island style. Hyper Island settings now have Compact and Off. If you had Icon only selected it switches to Compact.

ZeroStudy v1.2.1

Fixed

• Hyper Island is no longer too wide. The island used to show a label, the time and a status text plus a second icon, which pushed status bar icons out of view. It is now a small pill with the icon and only the time.

New

• Hyper Island settings (Xiaomi / HyperOS). Settings → Hyper Island lets you pick the style: Compact (icon + time), Icon only (narrowest) or Off (normal timer notification only). The same page shows whether Focus / Island notifications are allowed and opens the notification settings.
• The full details (focus or break, subject, time left) are still shown when you open the island or pull down the notification.