CrackLog: Coffee Roast Log

CrackLog: Coffee Roast Log

Tap the crack, mark the curve

3 ratings
1 review
Free
In-App Purchases

Details

Released
August 6, 2026
Updated
October 26, 2026

Features

CrackLog: Coffee Roast Log video #1 for iPhone
CrackLog: Coffee Roast Log screenshot #2 for iPhone
CrackLog: Coffee Roast Log screenshot #3 for iPhone
CrackLog: Coffee Roast Log screenshot #4 for iPhone
CrackLog: Coffee Roast Log screenshot #5 for iPhone
CrackLog: Coffee Roast Log screenshot #6 for iPhone
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About

Manually log coffee roasting details in real-time, including temperature, crack events, and fan/power adjustments. Visualize your roast curves and save batches as cards for easy comparison and future reference. Export your data for safekeeping.

βœ“Real-time roast curve drawing
βœ“Manual temperature and crack logging
βœ“Fan and power adjustment tracking
βœ“Batch card collection
βœ“Side-by-side roast comparison
βœ“Data export and import
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What's New in CrackLog

1.4.0

October 26, 2026

Roaster's Kit now logs a second temp. If your roaster shows two readings, like bean temp and exhaust temp, you can log either one while you roast, and the curve draws a second line. Name them in your roaster profile. Nothing connects to your roaster: you still type in the numbers you see, same as before. Batch details and the finish screen also show the peak of the second temp. In Edit log, both temps sit in one list, so you can fix or delete either. Everything free stays free.

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Subscriptions & In-App Purchases

$7.99

Roaster's Kit

Replay guide + multi-curve overlay. One-time.

User reviews

Minimalist

This really does what I need, graphs temp over time and marks 1st crack.

Developer apps

FAQ

Does CrackLog have ads?

No, CrackLog is ad-free. The app is designed to provide an uninterrupted logging experience for users.

What is the price of CrackLog?

CrackLog is free to download and use. There is an optional one-time purchase called 'Roaster's Kit' for advanced features.

How does CrackLog track roasts?

CrackLog uses manual input for temperature, fan, and power adjustments. Users tap to log first and second crack events as they hear them, with the curve drawing in real-time.

Can I compare my roasts with CrackLog?

Yes, CrackLog allows you to overlay your previous roast curves as a ghost image for direct comparison while you roast. The 'Roaster's Kit' upgrade enables stacking up to three earlier batches.

Where are my roast logs stored?

Your roast logs are stored exclusively on your phone. CrackLog does not use an account or server, ensuring your data remains private and local.

Can I export my roast data from CrackLog?

Yes, you can export every batch to a single file. This allows you to back up your data or transfer it if needed.

What devices does CrackLog support?

CrackLog is currently supported on iPhone devices. It is rated for ages 4 and up.

How often is CrackLog updated?

The latest version of CrackLog is 1.1.1, last updated on September 15, 2026. Updates are released to improve functionality and reliability.