# EngineCalc vs Enigma LC

The clearest difference is price: Enigma LC at Free against EngineCalc's $0.99. EngineCalc's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 20 months). On ads and device support there is nothing between them.

Enigma LC is free to download; EngineCalc costs $0.99 up front. Enigma LC sells 1 one-off in-app purchase. EngineCalc asks for nothing beyond the download.

EngineCalc ships an update every 2 months, Enigma LC every 20 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | EngineCalc | Enigma LC |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/enginecalc/id378824382/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 20 months |
| Monetization | Paid | — |
| Size | 8 MB | 3 MB |
| Requires iOS | **6.0** | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [iTrinity, Inc.](https://appshunter.io/developer/547108075) | [DILTS JAPAN, LIMITED LIABILITY CO.](https://appshunter.io/developer/780416956) |

## What reviewers say

### EngineCalc

[App page](https://appshunter.io/ios/app/enginecalc/id378824382)

This utility app provides a collection of essential formulas and calculators for powersports and engine tuning. It allows users to perform complex calculations directly on their iPhone, eliminating the need for a laptop or desktop computer.

**Highlights:** Powersports formulas, Engine tuning calculators, Actual Volume Flow, Air Density, Compression Ratio, Cylinder Displacement, Volumetric Efficiency

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Enigma LC

[App page](https://appshunter.io/ios/app/enigma-lc/id1255835556)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cross CUB 110 | $3.99 | one-time |


## Frequently asked questions

### Is EngineCalc free?

EngineCalc costs $0.99, with no in-app purchases.

### Is Enigma LC free?

Enigma LC is free to download, with in-app purchases available.

### Do EngineCalc or Enigma LC have ads?

Neither EngineCalc nor Enigma LC shows ads.

### Which is updated more often, EngineCalc or Enigma LC?

EngineCalc ships an update every 2 months, and Enigma LC every 20 months. Most recently, EngineCalc was updated on September 21, 2026 and Enigma LC on September 10, 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.*