BrewingCalc vs 4D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BrewingCalc
A professional toolkit for homebrewers featuring a suite of calculators for IBU, ABV, calories, and Brix. It also includes precise unit converters for volume, weight, temperature, and gravity, all without ads or subscriptions.
- IBU calculator (Glenn Tinseth)
- ABV estimation (precision table & formula)
- Calorie estimation (Real Extract method)
- Brix/Refractometer conversion
- Volume, weight, temperature, gravity converters
- Metric and US unit support
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BrewingCalc is a professional toolkit for homebrewers — clean, fast, and built for serious brewing. Whether you're calculating bitterness, estimating ABV, or converting between metric and US units, BrewingCalc gives you all the tools you need in one place. CALCULATORS INCLUDED • IBU (Glenn Tinseth) — Calculate International Bitterness Units for up to 5 hop additions. Enter hop weight, alpha acid %, boil time, batch volume, and wort gravity. Get per-hop and total IBU. • ABV Table — Determine alcohol by volume using a precision 60-point specific gravity interpolation table. Supports both Plato and SG inputs. • ABV Formula — Temperature-corrected ABV calculation using a polynomial formula. Accounts for measurement temperature of both original and final gravity readings. • Calories — Estimate total and per-100ml calories from original gravity, final gravity, and batch volume. Uses the Real Extract (RE) method. • Brix / Refractometer — Convert refractometer readings to gravity and ABV. Two modes: enter original and final Brix, or work backwards from current gravity and corrected Brix. Includes wort correction factor support. • Unit Converters — Four precision converters: – Volume: litres, millilitres, decalitres, US/UK gallons, fl oz, pints – Weight: kilograms, grams, pounds, ounces – Temperature: Celsius, Fahrenheit, Kelvin – Gravity: Plato ↔ Specific Gravity DESIGNED FOR BREWERS All formulas follow established brewing science — Glenn Tinseth's IBU model, the Real Extract calorie method, and standard Brix correction. No ads, no subscriptions, no account required. Works great on both iPhone and iPad.
4D
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Real-time parameters check and change as well as planting moments sharing can be realized by APP 4D Box. The main features of the APP are as follow: 1. Check and change. Parameters can be checked and changed by mobile once the APP connects to the growing machine. 2.Plants menu. Only need to choose the right plant in the APP, the machine will set the parameters automatically. What you need to do is just have a coffee and watching the plants grow. 3.Share. Sharing every exciting moment with the person you want.
Screenshots
Verdict
The clearest difference is iOS requirement: 4D at 9.0 against BrewingCalc's 26.0. On price, update cadence, ads and in-app purchases 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.
BrewingCalc ships an update every 3 months, 4D every 4 months. The most recent releases landed on September 24, 2026 and October 6, 2026 respectively.
| Parameter | BrewingCalc | 4D |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) — better | — |
| Positive reviews | 72.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 26 MB |
| Age rating | 17+ | 4+ |
| Developer | Ilia Khokhlov | 4D Bios Inc. |
In-app purchases
BrewingCalc
No in-app purchases
4D
No in-app purchases
Questions
Is BrewingCalc free?
Is 4D free?
Do BrewingCalc or 4D have ads?
Which is updated more often, BrewingCalc or 4D?
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