# F vs Red Flag Sim

The clearest difference is in-app purchases: F at none against Red Flag Sim's 3. F also leads on ratings volume (526 vs 61). Red Flag Sim's advantage is update cadence (every 3 days vs every 2 months) and review sentiment (88% vs 62%). On rating, ads, chart position and device support there is nothing between them.

F costs $4.99 and Red Flag Sim $0.99 up front. Red Flag Sim sells 3 one-off in-app purchases. F asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for F against 4.6 for Red Flag Sim. That said, the two scores are not equally well evidenced: F has 526 ratings behind it against 61, so its average is the more settled of the two. Written reviews are what separate them: 62% of F's written reviews are positive against 88% of Red Flag Sim's.

F ships an update every 2 months, Red Flag Sim every 3 days. Both last shipped on October 15, 2026.

## The numbers

| Metric | F | Red Flag Sim |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Rating | [4.6 (526 ratings)](https://appshunter.io/ios/app/f-simspace-shuttle-2/id1546191619/reviews) | [4.6 (61 ratings)](https://appshunter.io/ios/app/red-flag-sim/id6740720825/reviews) |
| Number of ratings | **526** | 61 |
| Positive reviews | 62.4% of reviews | **87.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | #40 | **#19** |
| Size | 1.3 GB | 1.4 GB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [SkyTale Software GmbH](https://appshunter.io/developer/352670058) | [畅 刘](https://appshunter.io/developer/383381901) |

## What reviewers say

### F

[App page](https://appshunter.io/ios/app/f-simspace-shuttle-2/id1546191619)

**Currently charting:** #40 Top Paid · Racing (US App Store)

Experience the thrill of landing a space shuttle with this detailed flight simulator. It offers console-quality graphics, interactive tutorials, and realistic flight physics for an authentic challenge. Master the steep and fast approach, improve your landings with scoring, and compete with friends.

**Highlights:** Realistic space shuttle approach and landing simulation, Console-quality graphics, Interactive tutorials with autopilot assist, Landing analysis and scoring system, Orbit mode, Multiple landing sites including White Sands, Adjustable wind conditions and emergency scenarios

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Cool game
- 🚀 Great game
- 🚀 Really cool
- 🚀 Fantastic
- 🚀 Stunning

**What reviewers complain about**

- 🐛 Tilt control issues
- 🐛 Reentry not working
- 🐛 Crashes and bugs
- 🐛 Inconsistent landing scoring
- 🐛 Overly sensitive controls

**Reported bugs**

- Tilt control not working
- Reentry mode not available
- Crashes and freezes
- Inconsistent landing scoring
- Overly sensitive controls

**Requested features**

- Reentry mode
- Launch sequence
- Orbit mode improvements
- Ability to open payload bay doors
- Docking with ISS


### Red Flag Sim

[App page](https://appshunter.io/ios/app/red-flag-sim/id6740720825)

**Currently charting:** #19 Top Paid · Racing, #103 Top Paid · Simulation (US App Store)

Experience a deep military aviation simulator on mobile, featuring realistic flight physics, complex avionics, and engaging combat. Learn to operate fighter jets, manage energy, and employ weapons through training missions or create your own scenarios.

**Highlights:** Realistic flight dynamics, In-depth F-15C simulation, Complex radar and avionics, Training and quick missions, Tactical mission editor, Evolving independent project

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 200 Fox Token | $1.99 | one-time |
| 450 Fox Token | $3.99 | one-time |
| 1000 Fox Token | $7.99 | one-time |


## Frequently asked questions

### Is F free?

F costs $4.99, with no in-app purchases.

### Is Red Flag Sim free?

Red Flag Sim costs $0.99, and also offers in-app purchases.

### Which has better reviews, F or Red Flag Sim?

F and Red Flag Sim are both rated 4.6 out of 5 on the App Store, from 526 and 61 ratings respectively.

### Do F or Red Flag Sim have ads?

Neither F nor Red Flag Sim shows ads.

### Which is updated more often, F or Red Flag Sim?

F ships an update every 2 months, and Red Flag Sim every 3 days. Most recently, F was updated on October 15, 2026 and Red Flag Sim on October 15, 2026.

### Which is more popular, F or Red Flag Sim?

F currently peaks at #40 in the App Store charts, and Red Flag Sim at #19. Chart position reflects recent download velocity rather than total install base.

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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.*