Comparison

Optimal Coffee Extraction vs Single Origin

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

Head to head
About

Optimal Coffee Extraction

This app helps coffee enthusiasts and professionals scientifically measure coffee extraction. It uses modern tools and coffee specifications to guide users towards the perfect cup, aligning with SCA guidelines for cafes and roasters.

Highlights
  • Measure coffee extraction scientifically
  • Align with SCA guidelines
  • Calculate dose, time, and output
  • Support for espresso and filter coffee
  • Beautiful and functional design
  • Useful for cafes and roasters
Features
Read full description

We are coffee people that wanted a better way to calculate extraction of our coffee's. Using modern tools & basic specs from our coffee's we are able to now measure the extraction & rely more on science in conjunction with taste in order to produce the best cup of coffee for ourselves and those we serve. We wanted to produce a beautiful design that helps represent the amount of work we put into our coffee which & our roasters put into sourcing & producing fantastic coffees. Why would I use this? Café's: Using quality roasters & quality beans isn't the only thing necessary in serving an awesome cup of coffee. Preparation & Brewing play an important role in a good cup of coffee. Our Optimal Coffee Extraction app will help you find out if you are inline with the SCA guidelines for perfect extraction. Roasters: Want to find perfect specs for your coffee's that you can give to your café? Finding the proper dose, time, & final output for espresso & filter coffee is a helpful thing to pass onto your café's and other wholesale clients to uphold proper quality standards. Things needed for this app to work: A Refractometer, either Atago or VST would work. Have feedback? Email us at help@kaleo.design

About

Single Origin

This app guides you through brewing coffee with step-by-step recipes and timed pour schedules. Log your tasting notes and brew history to refine your perfect cup. Unlock advanced features with a one-time purchase.

Highlights
  • Step-by-step guided brew recipes
  • Real-time timers and pour schedules
  • Weight and temperature guidance
  • Brew log with tasting notes
  • Import and share custom recipes
  • Tasting reminders
Features
Read full description

Brew better coffee with step-by-step guided recipes and a timed pour schedule for every method. Single Origin walks you through each stage of your brew — from bloom to final pour — with real-time timers, weight targets, and temperature guidance. When you're done, log your tasting notes so you can dial in your perfect cup over time. GUIDED BREW RECIPES Follow timed, multi-step recipes for Aeropress, Chemex, V60, French Press, Kalita Wave, Clever Dripper, and more. Each recipe breaks the brew into precise pour steps, wait periods, and actions like swirling or pressing — so you never have to guess. 60+ BUILT-IN PROFILES Choose from 9 Single Origin recipes, 17 Fellow profiles (including Drops collaborations), and 37 xBloom profiles. Every recipe includes dose, ratio, grind, temperature, and timing. IMPORT & SHARE RECIPES Import recipes from Fellow brew.link share codes or xBloom share links. Create your own custom recipes and share them with a unique code. BREW LOG & TASTING NOTES After each brew, record your dose, grind setting, water temperature, yield, and brew time. Rate your cup with stars and add freeform tasting notes. Search your history to see what worked. TASTING REMINDERS Get a notification after brewing so you can log your tasting notes while the flavor is fresh. SINGLE ORIGIN + Unlock unlimited custom recipes, 500+ community recipes, brew history search, accent colors, and custom app icons with a one-time purchase. Whether you're a home barista dialing in a new bag or a beginner following your first pour-over, Single Origin keeps you on track and helps you brew consistently.

Screenshots

Optimal Coffee Extraction4 screens
Single Origin4 screens

Verdict

The call

The clearest difference is price: Optimal Coffee Extraction at Free against Single Origin's $0.99. Optimal Coffee Extraction also leads on in-app purchases (none vs 1) and review sentiment (80% vs 67%). Single Origin's advantage is update cadence (every 9 days vs monthly) and rating (4.5 vs 4.3). On ads and device support 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

Optimal Coffee Extraction is free to download; Single Origin costs $0.99 up front. Single Origin sells 1 one-off in-app purchase. Optimal Coffee Extraction asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Single Origin holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Single Origin has 99 ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 80% of Optimal Coffee Extraction's written reviews are positive against 67% of Single Origin's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Optimal Coffee Extraction ships an update monthly, Single Origin every 9 days. The most recent releases landed on September 29, 2026 and October 11, 2026 respectively.

Scorecard9 real differences · 2 level
Optimal Coffee Extraction versus Single Origin: the parameters behind the verdict, then further details
ParameterOptimal Coffee ExtractionSingle Origin
PriceFree — better$0.99
Rating4.3 (15 ratings)4.5 (99 ratings) — better
Positive reviews80.0% of reviews — better66.7% of reviews
Number of ratings1599 — better
Update frequencyMonthlyEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#156 — better
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS9.1 — better17.0
Further details — not scored
Size31 MB44 MB
Age rating4+4+
DeveloperAndrew DanielsJon Samp

Customer experience

Optimal Coffee Extraction

All ratings15 ratings
Positive80.0%
Neutral6.7%
Negative13.3%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Single Origin

All ratings99 ratings
Positive86.9%
Neutral4.0%
Negative9.1%
Written reviews33 reviews
Positive66.7%
Neutral18.2%
Negative15.2%

In-app purchases

None

Optimal Coffee Extraction

No in-app purchases

1 purchases

Single Origin

One-time1
  • Single Origin Plus$0.99

Questions

Is Optimal Coffee Extraction free?
Optimal Coffee Extraction is free to download, with no in-app purchases.
Is Single Origin free?
Single Origin costs $0.99, and also offers in-app purchases.
Which has better reviews, Optimal Coffee Extraction or Single Origin?
Single Origin is rated higher. Optimal Coffee Extraction averages 4.3 out of 5 from 15 ratings, while Single Origin averages 4.5 from 99 ratings.
Do Optimal Coffee Extraction or Single Origin have ads?
Neither Optimal Coffee Extraction nor Single Origin shows ads.
Which is updated more often, Optimal Coffee Extraction or Single Origin?
Optimal Coffee Extraction ships an update monthly, and Single Origin every 9 days. Most recently, Optimal Coffee Extraction was updated on September 29, 2026 and Single Origin on October 11, 2026.

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