# Redline Shifting vs Engine Simulator

The clearest difference is update cadence: Redline Shifting at every 2 weeks against Engine Simulator's every 2 months. Redline Shifting also leads on iOS requirement (15.1 vs 18.6). Engine Simulator's advantage is chart position (#77 vs unranked). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Redline Shifting sells 2 one-off in-app purchases and Engine Simulator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for Redline Shifting against 4.3 for Engine Simulator. Both are backed by a comparable volume of ratings — 32 and 90 respectively. Written reviews are what separate them: 85% of Redline Shifting's written reviews are positive against 82% of Engine Simulator's.

Redline Shifting ships an update every 2 weeks, Engine Simulator every 2 months. The most recent releases landed on August 16, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Redline Shifting | Engine Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (32 ratings)](https://appshunter.io/ios/app/redline-shifting/id6670493198/reviews)** | [4.3 (90 ratings)](https://appshunter.io/ios/app/engine-simulator/id6772016143/reviews) |
| Number of ratings | 32 | **90** |
| Positive reviews | **84.6% of reviews** | 82.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#77** |
| Size | 34 MB | 22 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Redline Games LLC](https://appshunter.io/developer/1766523709) | [MUHAMMAD SAAD ATA](https://appshunter.io/developer/6772016385) |

## What reviewers say

### Redline Shifting

[App page](https://appshunter.io/ios/app/redline-shifting/id6670493198)

Experience the thrill of mastering gear shifts in powerful automobiles. Focus on the sound and feel of high-performance vehicles without the pressure of timers or scores. Unlock exclusive cars and tune into realistic engine notes for an immersive driving escape.

**Highlights:** Mastery of gear shifting, Realistic car sounds, Immersive driving experience, Unlockable exclusive cars, Customizable engine notes, No timers or scores

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Exotic Fleet | $3.99 | one-time |
| Exotic Fleet | $4.99 | one-time |

**What reviewers like**

- 🚀 Addictive shifting mechanics
- 👍 Easy to use and understand
- 🎧 Realistic car sounds
- 🎮 Fun and engaging experience
- 🚗 Great car selection

**What reviewers complain about**

- 🚗 Limited vehicle options

**Requested features**

- Add more vehicle options
- Improve pedal responsiveness


### Engine Simulator

[App page](https://appshunter.io/ios/app/engine-simulator/id6772016143)

**Currently charting:** #77 Top Grossing · Racing, #115 Top Free · Racing (US App Store)

Explore the physics of piston engines by building, tuning, and testing them. Simulate combustion and rigid body motion in real-time. Compete with others on a global leaderboard by posting your creations.

**Highlights:** Physics-based engine simulation, Build engines from scratch, Tune fuel and ignition maps, Real-time power and torque readings, 3D engine visualization, Global leaderboard

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Redline Shifting free?

Redline Shifting is free to download, with in-app purchases available.

### Is Engine Simulator free?

Engine Simulator is free to download, with in-app purchases available.

### Which has better reviews, Redline Shifting or Engine Simulator?

Redline Shifting is rated higher. Redline Shifting averages 4.3 out of 5 from 32 ratings, while Engine Simulator averages 4.3 from 90 ratings.

### Do Redline Shifting or Engine Simulator have ads?

Neither Redline Shifting nor Engine Simulator shows ads.

### Which is updated more often, Redline Shifting or Engine Simulator?

Redline Shifting ships an update every 2 weeks, and Engine Simulator every 2 months. Most recently, Redline Shifting was updated on August 16, 2026 and Engine Simulator on September 27, 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.*