# ECA 3D vs CandleCalc Plus

The clearest difference is in-app purchases: ECA 3D at none against CandleCalc Plus's 1. ECA 3D also leads on iOS requirement (13.0 vs 17.6). CandleCalc Plus's advantage is update cadence (fortnightly vs every 19 months). On price, ads and device support there is nothing between them.

Both are free to download. CandleCalc Plus sells 1 in-app purchase, starting at $3.99 per year. ECA 3D asks for nothing beyond the download.

ECA 3D ships an update every 19 months, CandleCalc Plus fortnightly. The most recent releases landed on October 17, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ECA 3D | CandleCalc Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/candlecalc-plus/id6740711910/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 27 MB | 91 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Evoltech Srl](https://appshunter.io/developer/1759414077) | [John Stempien](https://appshunter.io/developer/1516739763) |

## What reviewers say

### ECA 3D

[App page](https://appshunter.io/ios/app/eca-3d/id6624305508)

**Features:** macOS Compatibility

**In-app purchases:** none


### CandleCalc Plus

[App page](https://appshunter.io/ios/app/candlecalc-plus/id6740711910)

This app helps candle makers of all levels achieve consistent, high-quality results. It offers a suite of tools for precise calculations related to wax, fragrance, additives, and more, simplifying the entire candle-making process.

**Highlights:** Water Weight Calculator, Materials Calculator, Fragrance Oil Calculator, Additive Calculator, Burn Time Calculator, User-Friendly Interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Access | $3.99 | per year |


## Frequently asked questions

### Is ECA 3D free?

ECA 3D is free to download, with no in-app purchases.

### Is CandleCalc Plus free?

CandleCalc Plus is free to download, with in-app purchases available.

### Do ECA 3D or CandleCalc Plus have ads?

Neither ECA 3D nor CandleCalc Plus shows ads.

### Which is updated more often, ECA 3D or CandleCalc Plus?

ECA 3D ships an update every 19 months, and CandleCalc Plus fortnightly. Most recently, ECA 3D was updated on October 17, 2026 and CandleCalc Plus on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*