Comparison

Coffee Rings vs Grindhog

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

Head to head
About

Coffee Rings

Features
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Perfect espresso is not a coincidence. With Coffee Rings, you can precisely document, analyze and improve your espresso shots step by step - for consistent, great results. Whether you prefer to experiment yourself or let the app guide you - Coffee Rings combines proven barista knowledge with optional AI analysis for a better understanding of your preparation. Functions: โ€ข Create, save and search recipes โ€ข Record dose, output, temperature and taste โ€ข Offline recommendations based on real barista logic โ€ข Optional AI analyses for additional insights โ€ข Espresso Tutor as a learning aid for reproducible results โ€ข Works offline - without registration, without advertising Whether an amateur or a passionate barista - Coffee Rings helps you understand the language of your espresso and make every cup a little better.

About

Grindhog

Features
Read full description

Never spend 4-5 shots dialing in a new bag again. Grindhog uses knowledge graphs to learn from your equipment and beans, instantly recommending the perfect grind settings - and it taps into the power of the dial-in community!

Screenshots

Coffee Rings4 screens
Grindhog1 screens

Verdict

The call

The clearest difference is in-app purchases: Grindhog at none against Coffee Rings's 3. Grindhog also leads on iOS requirement (15.1 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Coffee Rings sells 3 one-off in-app purchases. Grindhog asks for nothing beyond the download.

UpkeepUpdate frequency

Coffee Rings ships an update weekly, Grindhog every 6 days. The most recent releases landed on October 14, 2026 and September 29, 2026 respectively.

Scorecard2 real differences ยท 4 level
Coffee Rings versus Grindhog: the parameters behind the verdict, then further details
ParameterCoffee RingsGrindhog
PriceFreeFree
Update frequencyWeeklyEvery 6 days โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.015.1 โ€” better
Further details โ€” not scored
Size11 MB25 MB
Age rating4+4+
DeveloperMICHAEL KARL KNOPJohannes Hermann Hoffart

In-app purchases

3 purchases

Coffee Rings

One-time3
  • Single Espresso Tip$1.99
  • Tip - Double Espresso$2.99
  • Big Support Tip$3.99
None

Grindhog

No in-app purchases

Questions

Is Coffee Rings free?
Coffee Rings is free to download, with in-app purchases available.
Is Grindhog free?
Grindhog is free to download, with no in-app purchases.
Do Coffee Rings or Grindhog have ads?
Neither Coffee Rings nor Grindhog shows ads.
Which is updated more often, Coffee Rings or Grindhog?
Coffee Rings ships an update weekly, and Grindhog every 6 days. Most recently, Coffee Rings was updated on October 14, 2026 and Grindhog on September 29, 2026.

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