Ratios vs mi.system
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ratios
This application helps home baristas calculate precise coffee brewing ratios. Easily determine the exact weight of coffee beans and water needed for your desired brew strength. All values are instantly editable to see how adjustments impact your final cup.
- Calculate coffee bean and water weights
- Adjustable brew strength
- Instant value updates
- Free and open source
- Supports various brew amounts
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Ratios is a free and open source calculator for home brewed coffee. Quickly and easily enter the total amount of coffee you want to make and Ratios will calculate the weight of beans and amount of water needed based on your desired strength. All the information is editable and updates instantly so you can see how different values affect your overall brew.
mi.system
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Your mi.puck Smart Home - comfortable, reliable, future-proof. With our mi.pucks, you can smartly design your home according to your needs. Whether it's a new build or an existing building, the mi.puck system offers you a flexible and intelligent solution to comfortably manage your home. Diverse possibilities Lighting, heating, ventilation control, shading, and much more - with mi.puck, you have the control. Time functions Set schedules to automatically turn your devices on or off, or align the control with sunrise and/or sunset. This way, you always create the right atmosphere in your home at the right time. Favorites Save your most important mi.pucks as favorites so you can quickly and easily access them whenever you need them Group control Assign devices from your network that control lighting, shading, or heating to groups and control them together. This way, you can turn on all the lighting with a single touch. Gateway function Control your home from anywhere. With a tablet or another mobile device as a gateway, you can conveniently manage your smart home at any time using your smartphone. A system that grows with you. The mi.puck system is flexible and expandable. New devices can be added at any time, allowing your smart home to grow with your needs.
Screenshots
Verdict
The clearest difference is update cadence: mi.system at every 5 days against Ratios's every 5 months. Ratios's advantage is iOS requirement (10.3 vs 15.0). 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.
Ratios ships an update every 5 months, mi.system every 5 days. The most recent releases landed on August 15, 2026 and September 20, 2026 respectively.
| Parameter | Ratios | mi.system |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (79 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 79 — better | — |
| Update frequency | Every 5 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 17 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Brushed Type Ltd | Hugo Mueller GmbH & Co KG |
In-app purchases
Ratios
No in-app purchases
mi.system
No in-app purchases









