Optimal Coffee Extraction vs Simple Coffee Ratio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Simple Coffee Ratio
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The simplest calculator for you to make better coffee by choosing the right values between ratio, coffee and water.
Screenshots
Verdict
The clearest difference is update cadence: Optimal Coffee Extraction at monthly against Simple Coffee Ratio's every 41 months. Optimal Coffee Extraction also leads on iOS requirement (9.1 vs 26.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Optimal Coffee Extraction ships an update monthly, Simple Coffee Ratio every 41 months. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.
| Parameter | Optimal Coffee Extraction | Simple Coffee Ratio |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (15 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Monthly — better | Every 41 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 31 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Daniels | Ale Mohamad |
In-app purchases
Optimal Coffee Extraction
No in-app purchases
Simple Coffee Ratio
No in-app purchases
Questions
Is Optimal Coffee Extraction free?
Is Simple Coffee Ratio free?
Do Optimal Coffee Extraction or Simple Coffee Ratio have ads?
Which is updated more often, Optimal Coffee Extraction or Simple Coffee Ratio?
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