Let's do the math on your current setup.
Notion: free tier (with limitations). Flo period tracker: $50/year. Habitica: free (but cluttered with gamification you don't need). Google Calendar: free (but your data trains their AI). Countdown app: $3.99. Notes app: built-in, but syncs to iCloud/Google.
You're spending money, attention, and privacy across six different tools. Every one of them wants your email. Most want your data. Several want your credit card.
Here are seven free browser tools that replace all of them. No sign-up. No sync. No data leaving your device.
1. Habit Tracker — replaces Habitica, Streaks, and Loop
The Habit Tracker gives you a full-month grid view with every day of the month across the top and your habits down the side. Check off each day. Set flexible monthly goals instead of rigid streaks.
What makes it different: Goals, not streaks. Miss a day without losing everything. Set "Exercise 20 times this month" instead of "Exercise every day forever." Right-click any cell to add a note about that day.
Replaces: Habitica ($48/yr for premium), Streaks ($4.99), Loop Habit Tracker (free but Android only).
2. Unified Calendar — replaces Google Calendar (partially)
The Unified Calendar isn't a full Google Calendar replacement — it doesn't do recurring events or invites. But for personal planning, it's better in one critical way: it shows everything.
Toggle on layers for events, period predictions, habit completions, countdowns, and notes. One view, all your data.
What makes it different: No other free calendar shows your habits and period predictions alongside your events. The layer system means you see exactly what you need.
Replaces: The "personal overview" function of Google Calendar, Apple Calendar, or Notion calendar views.
3. Period Tracker — replaces Flo, Clue, and Ovia
The Period Tracker logs your cycles, calculates averages, and predicts your next period and fertile window. All data stays in localStorage — never touches a server.
What makes it different: Complete privacy. After the Flo data-sharing scandal and post-Roe privacy concerns, a tracker that physically cannot share your data is a feature, not a limitation.
Replaces: Flo ($49.99/yr), Clue ($39.99/yr for premium), Ovia (free but data-hungry).
4. Countdown Timer — replaces countdown apps and widgets
The Countdown Timer creates live-updating countdowns to any date. Days, hours, minutes, seconds — all ticking down in real time. Multiple countdowns with different colors.
What makes it different: Multiple simultaneous countdowns with color coding. Most countdown widgets only handle one event.
Replaces: Countdown Star ($3.99), Hurry ($2.99), or the countdown widget on your phone's home screen.
5. Sticky Notes — replaces quick-capture notes
Sticky Notes gives you colorful, randomly-rotated note cards. Create, edit, delete. They persist in your browser.
What makes it different: Zero friction. No folders, no tags, no organization overhead. Open, type, close. The note is there when you come back.
Replaces: The "quick note" function of Apple Notes, Google Keep, or Notion.
6. Evaluation Calculator — replaces phone calculator
The Evaluation Calculator handles full expressions like (250 * 1.18) / 4, keeps a history of your last 20 calculations, and works entirely from the keyboard.
What makes it different: Expression input and persistent history. Type the whole formula, don't step through it button by button.
Replaces: Your phone calculator, Google's calculator, and any "history calculator" app.
7. The unified view — replaces Notion dashboards
This is the real value. Every tool shares data through the Unified Calendar. You don't need to build a Notion dashboard or configure Zapier integrations. Log a habit, and the calendar shows it. Track a period, and the calendar highlights it. Set a countdown, and the calendar marks the date.
This automatic integration is what people spend hours building in Notion. Here, it just works.
The privacy math
Every app in your current stack knows something about you:
- Your calendar app knows your schedule
- Your period tracker knows your cycle
- Your habit tracker knows your routines
- Your notes app knows your thoughts
That's an intimate profile. With browser-based tools, that profile exists only on your device. No company aggregates it. No breach exposes it. No terms-of-service change suddenly grants new access to it.
Switch in 5 minutes
- Open the Habit Tracker and add your current habits
- Open the Period Tracker and log your last 2-3 cycles
- Open the Countdown Timer and add your next deadlines
- Open the Unified Calendar and see everything in one view
No export/import process. No data migration. Just start using the new tools and let the old apps collect dust.
Your data. Your device. Your planner. No one else's.