Comparison

F vs Red Flag Sim

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

F

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
Currently charting
Read full description

Here is the long-awaited successor to our critically acclaimed flight simulator. It simulates the Space Shuttle approach and landing in incredible detail and accuracy. This is a remaster of our original F-Sim Space Shuttle, completely rewritten from scratch. New features include: - Console quality graphics - Interactive tutorials - White Sands as a third landing site option - Orbit mode F-Sim Space Shuttle combines realistic flight simulation with stunning graphics and fun gameplay. You’ve never landed a Space Shuttle before? We’ve got you covered: Included are several tutorials with varying degrees of autopilot assist. Our landing analysis and scoring system tells you exactly how to improve your next landing. It will make you come back and try again. Each flight starts at either 10,000 feet, already aligned with the runway, or at up to 50,000 feet, before banking into the heading alignment cone. During descent, the Orbiter is an unpowered glider, so you will only have one chance to get it right. Astronauts used to call it a flying brick: Because of its 200,000 lbs. gross weight and low lift over drag ratio, the approach is six times steeper and two times faster than a typical airliner approach. After your first safe touchdown, chase that perfect landing, compare your high scores online with your friends, earn medals, and unlock achievements. Experiment with different wind conditions, night approaches, and even emergency scenarios or system failures. At the end of each flight, watch a replay from different camera angles. You control the Orbiter’s pitch and roll axes by tilting your device. Alternatively, you may switch to on-screen analog sticks or use a gamepad. Rudder, speed brake, gear, and chute are usually handled by the autopilot, but you can have full manual control if you like. For beginners, we’ve added rectangles that visualize the desired approach path. Simply try to stay within the corridor of rectangles, and they’ll guide you right to the touchdown point. Advanced pilots can turn them off and rely on the instruments in the head-up display (HUD) instead. The simulated guidance, navigation and control (GNC) systems are authentic replications of their counterparts in the real Orbiter, and the HUD features all the instruments real Space Shuttle commanders used to employ to skillfully land this unique aircraft. Now it’s your turn to give it a try. A new orbit mode lets you take the Orbiter for a spin around the planet, and we’re working on a full atmospheric re-entry scenario, which, among other new features, will be released as free updates in the coming months. There are no ads or in app purchases, and we don’t collect any personal data.

About

Red Flag Sim

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
Read full description

Red Flag Sim is a modern military aviation simulator built specifically for mobile devices. Mobile platforms have long lacked a combat flight simulator with genuine depth. Red Flag Sim was created to change that, bringing complex flight and avionics systems to mobile through a control scheme designed for touchscreen devices. Our goal is to give players the authentic feeling of operating a fighter aircraft—from trim, angle of attack, energy management, and G-loading to radar, navigation, warning systems, and weapons employment. Every system is modeled around real-world principles and publicly available information. 【IN-DEPTH F-15C SIMULATION】 The current version features the F-15C, demonstrating the level of simulation depth planned for every future aircraft module in Red Flag Sim. Manage the aircraft’s flight state and energy, operate its radar and avionics, employ weapons, navigate, approach, and land safely. This is not an arcade shooter built around simply aiming and firing—it is a flight experience that rewards learning, practice, and continuous improvement. 【REALISTIC FLIGHT DYNAMICS】 Experience how trim, angle of attack, stalls, G-forces, and energy affect the aircraft. Speed, altitude, payload, and control inputs all influence its performance and handling. 【RADAR AND AVIONICS】 Use multifunction displays, fire-control radar, radar warning systems, and navigation equipment to build situational awareness, locate targets, and complete engagements. These systems are designed around meaningful operation and interaction—not merely visual interface effects. 【TRAINING AND QUICK MISSIONS】 Learn essential flying skills, avionics operation, weapons employment, and landing procedures through dedicated F-15C training missions—or jump directly into the cockpit with a selection of quick missions. 【CREATE YOUR OWN MISSIONS】 Use the tactical mission editor to place units, define routes, configure the operating environment, and create your own custom scenarios. 【AN EVOLVING INDEPENDENT PROJECT】 Red Flag Sim has been independently developed by a solo developer and continues to evolve. New terrain, environmental effects, aircraft modules, missions, and simulation systems will be introduced over time. If you have been waiting for a more serious and in-depth combat flight simulator on mobile, welcome to the cockpit of Red Flag Sim. Prepare for takeoff.

Screenshots

F4 screens
Red Flag Sim4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard6 real differences · 5 level
F versus Red Flag Sim: the parameters behind the verdict, then further details
ParameterFRed Flag Sim
Price$4.99$0.99 — better
Rating4.6 (526 ratings)4.6 (61 ratings)
Positive reviews62.4% of reviews87.8% of reviews — better
Number of ratings526 — better61
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#49#18 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size1.3 GB1.4 GB
Age rating4+12+
DeveloperSkyTale Software GmbH畅 刘

Customer experience

F

All ratings526 ratings
Positive89.5%
Neutral3.6%
Negative6.8%
Written reviews218 reviews
Positive62.4%
Neutral11.5%
Negative26.1%

Red Flag Sim

All ratings61 ratings
Positive90.2%
Neutral1.6%
Negative8.2%
Written reviews49 reviews
Positive87.8%
Neutral0.0%
Negative12.2%

Bugs and requests

F

Reported bugs

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

Requested features

10 requests
  • Reentry mode
  • Launch sequence
  • Orbit mode improvements
  • Ability to open payload bay doors
  • Docking with ISS
Show 5 more
  • Cargo deployment
  • More mission types
  • Ability to change units (imperial/metric)
  • Background audio support
  • More landing sites

Red Flag Sim

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

F

No in-app purchases

3 purchases

Red Flag Sim

One-time3
  • 200 Fox Token$1.99
  • 450 Fox Token$3.99
  • 1000 Fox Token$7.99

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 #49 in the App Store charts, and Red Flag Sim at #18. Chart position reflects recent download velocity rather than total install base.

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