Compare X-Plane 12 vs Aerofly FS 4 for realism, VR, performance, scenery, aircraft and add-ons, then choose the right simulator for your flying.
X-Plane 12 is the better all-round simulator for serious IFR flying, dynamic weather, hardware integration and add-ons. Aerofly FS 4 is better for smooth VR, fast loading and straightforward flying with polished default content. Choose X-Plane for depth and expansion; choose Aerofly for speed, accessibility and fluid performance.
X-Plane 12 vs Aerofly FS 4 at a glance
X-Plane 12 wins on breadth, while Aerofly FS 4 wins on immediacy and efficiency.
| Priority | Better choice | Reason |
|---|---|---|
| IFR and procedural flying | X-Plane 12 | Stronger weather, failures, navigation tools and aircraft ecosystem |
| Smooth PC VR | Aerofly FS 4 | Usually easier to run at stable frame times with clear cockpit interaction |
| Flight dynamics | Depends on the aircraft | Both use physics-driven models; aircraft-specific tuning matters |
| Live and dynamic weather | X-Plane 12 | More complete weather simulation and changing surface conditions |
| High-detail scenery out of the box | Aerofly FS 4 | Installed detailed regions can look sharper without configuration |
| Worldwide expansion and add-ons | X-Plane 12 | Far larger selection of aircraft, scenery, plugins and utilities |
| Home cockpit hardware | X-Plane 12 | Better plugin, dataref, networking and peripheral support |
| Quick, uncomplicated flying | Aerofly FS 4 | Fast loading, simple setup and less add-on maintenance |
Which has the more realistic flight model?
X-Plane 12 offers the broader simulation of aircraft, atmosphere and operating conditions, but Aerofly FS 4 is not an arcade flight game. X-Plane calculates aerodynamic forces across aircraft surfaces, while Aerofly also uses a physics-based model that produces convincing handling in well-tuned aircraft.
The aircraft itself can matter more than the simulator logo. A carefully modelled Aerofly aircraft may feel more convincing than a weak X-Plane add-on, particularly in normal visual flight, while X-Plane generally provides more depth once weather, failures, unusual configurations and third-party aircraft enter the comparison.
Compare the same aircraft at the same weight, centre of gravity and weather conditions. Disable flight assists, remove duplicate axis assignments and calibrate the controls before judging either model; excessive dead zones or an unintended stability aid can make a good simulation feel artificial.
Which is better for VR and PC performance?
Aerofly FS 4 is usually the better VR choice when smooth head movement and low frame-time variation are the priorities. Its rendering engine is efficient, loading is quick, and its cockpit interaction is well suited to short VR sessions.
X-Plane 12 can provide excellent VR, but dense scenery, clouds, traffic, high object settings and plugins place heavier demands on the system. Lowering resolution alone may not fix a CPU-limited installation; reducing world objects, traffic or unusually demanding add-ons can be more effective.
Do not compare the simulators using the same numerical render-scale setting and assume the workload is equal. VR runtimes expose resolution differently. Judge smoothness during turns near a detailed airport, not from the average frame rate while sitting on an empty runway, and confirm that the intended headset, operating system and runtime are supported.
Which has better aircraft, scenery and add-ons?
Aircraft and cockpit systems
X-Plane 12 has the stronger aircraft ecosystem, while Aerofly FS 4 provides a more contained selection of polished default aircraft. Aerofly is attractive if the included aircraft cover what you want to fly and you prefer not to manage plugins, dependencies or frequent add-on updates.
For airliners, compare the exact model rather than counting aircraft. Check which flight-management pages, autopilot modes, navigation procedures and failure functions are implemented. Two aircraft can both have clickable cockpits yet differ greatly once a route requires managed descent, holding, missed approaches or abnormal procedures.
Scenery and weather
Aerofly FS 4 can look better with less work in its installed high-detail regions, whereas X-Plane 12 provides a broader world that can be extensively rebuilt with community scenery. Coverage and detail depend on which scenery packages are installed, so screenshots from one featured city do not guarantee the same quality everywhere.
X-Plane's default scenery is often more generic than aerial-imagery-based scenery, but its airport and scenery ecosystem is much larger. Our library of X-Plane aircraft, scenery, utilities and plugins shows the available range, while these worthwhile free X-Plane 12 add-ons illustrate how far it can be expanded without buying extra content.
Weather is a clearer X-Plane victory. X-Plane 12 models live and configured weather, changing winds, precipitation, clouds and runway conditions more comprehensively. Aerofly's simpler conditions help performance and visual consistency, but provide less environmental variety for demanding IFR practice.
Add-on management and controls
X-Plane 12 supports more specialist hardware and customisation, but that flexibility creates extra maintenance. Plugins can conflict, old aircraft may need updates, and scenery ordering in scenery_packs.ini can prevent an airport or overlay from appearing correctly.
When troubleshooting X-Plane, start with a clean installation, add one plugin or scenery package at a time and retest after simulator updates. Aerofly's smaller ecosystem limits choice but also reduces the number of dependencies and scenery-order problems a user is likely to encounter.
Can either simulator be used for flight training?
X-Plane 12 is the better home-training platform for instrument procedures, weather interpretation, failures and cockpit hardware. Aerofly FS 4 remains useful for visual circuits, cockpit familiarisation, basic navigation and practising a disciplined instrument scan.
Neither consumer installation automatically becomes an approved flight-training device. Approval depends on the complete hardware, software and regulatory configuration; X-Plane Professional can be part of qualified systems, which is different from logging time on an ordinary home PC. Our comparison of the features that matter for home flight training explains why control feel, avionics, procedures and instructor oversight matter more than graphics alone.
What catches buyers out?
- Confusing desktop and mobile products: Aerofly FS 4 is a desktop simulator. Mobile Aerofly releases are separate products with their own content and licensing.
- Assuming all scenery is included: Check the regions and scenery packages supplied with the chosen edition or distribution before comparing coverage.
- Comparing modified X-Plane with stock Aerofly: State clearly whether aircraft, weather tools and scenery add-ons are part of the comparison.
- Ignoring control calibration: Remove duplicate pitch, roll, yaw and throttle assignments, then set dead zones and response curves separately in each simulator.
- Buying for a career campaign: Neither simulator centres on an airline-management career. X-Plane relies on external tools, summarised in our guide to X-Plane 12 career-mode alternatives.
- Choosing by headline frame rate: Stable frame times, clear instruments and reliable head tracking matter more than a high number reached in an undemanding location.
Which simulator should you buy?
Buy X-Plane 12 if you want a simulator to develop over time through specialist aircraft, global scenery, plugins, weather, failures and cockpit hardware. It is the stronger choice for IFR practice, serious procedural flying and users who enjoy configuring their installation.
Buy Aerofly FS 4 if your priorities are smooth VR, short loading times, attractive installed scenery and flying the supplied aircraft without managing a large add-on collection. It is also the safer choice when stable performance matters more than worldwide content or extensive systems expansion.
For most committed desktop simmers, X-Plane 12 is the better long-term platform. For a VR-first setup or a user who values speed and simplicity over extensibility, Aerofly FS 4 can be the better simulator.