Comparison

Boca BT vs CrackLog

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Boca BT

Features
Read full description

This is an app for use with 'Bocaboca Bluetooth' devices. When you click the connect button, it will connect to the device. After that, you can record the roasting process with buttons such as 'Preheat' and 'Inject'. You can set the language by clicking the settings button.

About

CrackLog

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.

Highlights
  • Real-time roast curve drawing
  • Manual temperature and crack logging
  • Fan and power adjustment tracking
  • Batch card collection
  • Side-by-side roast comparison
  • Data export and import
Features
Read full description

Hear the crack, press the big button once. A dot lands on the curve right there. CrackLog is a roasting log for home roasters who read the temperature off the machine and listen for the cracks themselves. Start the timer at charge, log temps as you go, tap first crack and second crack when you hear them, and the roast curve draws itself in real time. At drop, the batch becomes a card in your collection. Nothing to sign up for and nothing uploaded: your roast curves and batch cards never leave the handset you tapped them into. TRY IT BEFORE YOU ROAST A demo compresses a ten-minute roast into thirty seconds. You tap the cracks yourself and watch the dots land, without a single green bean. Demo batches stay out of your stats and overlays. A ROAST, START TO FINISH Charge: the timer starts at 0:00. Roasting: log the temperature shown on your roaster as often as you like. Keep the screen on while the timer runs. Cracks: tap First crack when you hear it, then Second crack. The dot is placed at that exact second. Mis-tapped? Undo on the spot. Drop: the timer stops, total time and DTR are worked out, and the batch card is made. DONE BY HAND, ON PURPOSE You type the temperature you see and you press the crack you hear. CrackLog never guesses your roast level and never grades the roast. It records what happened, as it happened. FAN AND POWER, LOGGED IN PLACE Each time you turn fan or power (1 to 9), one tap. The changes draw as a step line in a lane under the curve and sit in a table on the card, so next time with the same green coffee you can follow "fan 7 at 3:20" exactly. Tap yellowing and the end of first crack too and the drying, Maillard and development ratios are summarised for you. Preheat and room temperature go in the batch details. WHAT A CARD HOLDS Time-by-temperature curve with first and second crack dots Fan and power changes, yellowing and end-of-first-crack times Green coffee, origin, charge weight, drop weight, weight loss, roaster used, preheat and room temperature Roast level, eight steps from Light to Italian, chosen by you One line of roasting notes Browse the collection by green coffee or roast level. There are no streaks, no missions and no nagging to roast every day. SIDE BY SIDE WITH THE LAST BATCH Overlay the previous batch of the same green coffee as a translucent curve and compare as you roast. Roast again from any card and the green coffee, charge weight, roaster and preheat are filled in before you start. ROASTER'S KIT (OPTIONAL, ONE-TIME PURCHASE) Replay guide: start the same green coffee and the last batch's fan, power and crack times run alongside your timer. Multi-batch overlay: up to three earlier batches on one curve. Second temp: alternate between two readouts, such as bean temperature and exhaust temperature. Name them yourself and a second line is drawn on the curve. Roaster profile: rename the two dials and set their ranges to match your machine. Curve share card, green coffee stock, stats by green coffee, your own marks, card theme. Not a subscription. Whatever is free today stays free. YOUR RECORDS BELONG TO YOU Export every batch to a single file and import it again. Delete everything in one step from Settings. Logging works without an account, without a connection and without touching your photos, mic or location. Ads never appear and nothing renews. One optional lifetime purchase, handled by the App Store.

Screenshots

Boca BT2 screens
CrackLog4 screens

Verdict

The call

The clearest difference is in-app purchases: Boca BT at none against CrackLog's 1. Boca BT also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CrackLog sells 1 one-off in-app purchase. Boca BT asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Boca BT versus CrackLog: the parameters behind the verdict, then further details
ParameterBoca BTCrackLog
PriceFreeFree
Rating—4.7 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.4
Further details — not scored
Size25 MB40 MB
Age rating4+4+
Developersan songKYUNGHWAN KIM

In-app purchases

None

Boca BT

No in-app purchases

1 purchases

CrackLog

One-time1
  • Roaster's Kit$7.99

Questions

Is Boca BT free?
Boca BT is free to download, with no in-app purchases.
Is CrackLog free?
CrackLog is free to download, with in-app purchases available.
Do Boca BT or CrackLog have ads?
Neither Boca BT nor CrackLog shows ads.
Which is updated more often, Boca BT or CrackLog?
Boca BT ships an update every 3 weeks, and CrackLog every 3 weeks. Most recently, Boca BT was updated on October 25, 2026 and CrackLog on October 29, 2026.

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