Ratios vs Wattage Conversion
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.
Wattage Conversion
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Microwave Oven Wattage Conversion Converts cooking times for the microwave based on the wattage of your microwave oven. Although cooking time estimates for microwave ovens may be provided on food packaging, there could be instances where the wattage of your microwave oven does not match. In such cases, it calculates and displays the appropriate cooking time by converting the wattage. Note: Numbers are not necessarily accurate.
Screenshots
Verdict
The clearest difference is in-app purchases: Ratios at none against Wattage Conversion's 1. Ratios also leads on iOS requirement (10.3 vs 15.6). Wattage Conversion's advantage is update cadence (monthly vs every 5 months). On price, 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
Both are free to download. Wattage Conversion sells 1 one-off in-app purchase. Ratios asks for nothing beyond the download.
Ratios ships an update every 5 months, Wattage Conversion monthly. The most recent releases landed on August 15, 2026 and September 21, 2026 respectively.
| Parameter | Ratios | Wattage Conversion |
|---|---|---|
| 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 | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.3 — better | 15.6 |
| Further details — not scored | ||
| Size | 17 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Brushed Type Ltd | akira ohmachi |
In-app purchases
Ratios
No in-app purchases
Wattage Conversion
- Remove Ads$1.99
Questions
Is Ratios free?
Is Wattage Conversion free?
Do Ratios or Wattage Conversion have ads?
Which is updated more often, Ratios or Wattage Conversion?
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