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ChartDay

ChartDay

See Your Days in Data

3 ratings
1 review
🔧 Utilities
📊 Productivity
Free
In-App Purchases

Details

  • Released
  • Updated
  • March 30, 2023
  • May 31, 2026

Features

Developer

Fu Ni
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ChartDay screenshot #1 for iPhone
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ChartDay screenshot #7 for iPhone
iphone
ipad
🧾$1.99
In-App Purchase↘︎
⭐1
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🔄6+ apps
Alternatives↘︎
❓8 answered
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About

Track daily habits, health, and fitness with interactive charts. Offers instant statistics, goal setting, and data export. Syncs across devices and provides home screen widgets for quick access.

✓Daily tracking with interactive charts
✓Instant statistical calculations
✓Goal setting with target lines
✓Tagging and filtering for organization
✓Home screen widgets
✓iCloud sync across devices
✓Data export to CSV
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What's New in ChartDay

3.1.1

May 31, 2026

Bug fix: Decimal values can now be entered on devices whose region uses a comma (,) as the decimal separator. Previously these values would reset to zero — this has been resolved.

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1

In-App Purchases

$1.99

ChartDay Unlimited

Unlimited chart creation

User reviews

Most RecentHighest RatedLowest Rated

Stellar App

This is an extremely useful and well designed app to chart daily observations. Use it to follow weight, sleep, hours worked etc
Review daily values or weekly/monthly averages. Or look at totals over time.
The developer is extremely responsive and quick to fix bugs (rare) or consider features when suggested.
Worth every penny!
Show more
Jimador KJimador K

Response from developer

I really appreciate your suggestion to add weekly and monthly views (released in version 2.4)—its made the app even more useful for everyone!

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FAQ

Does ChartDay have ads?

No, ChartDay is completely ad-free. The developer emphasizes privacy with no ads, tracking, or data collection.

How much does ChartDay cost?

ChartDay is free to download and use. An optional one-time in-app purchase, 'ChartDay Unlimited,' unlocks unlimited chart creation.

What devices does ChartDay support?

ChartDay is available for iPhone and iPad. It utilizes iCloud sync to keep your data consistent across all your Apple devices.

How often is ChartDay updated?

The latest version is 3.1, last updated on April 3, 2026. This indicates a commitment to ongoing development and improvements.

What kind of data can I track with ChartDay?

You can track daily habits, health metrics, fitness activities, and more. The app is designed for versatile data entry, including multiple entries per day with timestamps.

Can I export my data from ChartDay?

Yes, ChartDay allows you to export any chart as a CSV file. This feature is useful for further analysis or backup purposes.

What is the age rating for ChartDay?

ChartDay has an age rating of 4+. This suggests it is suitable for a wide range of users, including children.

How does ChartDay help with motivation?

ChartDay helps with motivation by allowing you to set goals directly on your charts with target lines or ranges. Visualizing progress also keeps your objectives in sight.