Users switch for cross-platform support and more advanced features. Gain: Windows/iPad versions, HDR merge, panorama stitching, focus stacking. Trade-off: Now free but slightly steeper learning curve, no Apple Silicon optimization.

Professionals switch for complete feature set and plugin ecosystem. Gain: AI tools, extensive plugins, Actions automation, industry-standard status. Trade-off: $22.99/month subscription, heavier resource usage.

Open-source advocates choose GIMP for transparency and Linux support. Gain: completely free, highly customizable, cross-platform. Trade-off: dated UI, steep learning curve, less intuitive than Pixelmator.

Photographers needing catalog management choose Lightroom. Gain: photo library organization, cloud sync, mobile apps. Trade-off: subscription pricing, less compositing power.

Users wanting Apple Photos integration choose Pixelmator's sibling app. Gain: works as Photos extension, ML-powered adjustments, cloud sync. Trade-off: less editing power than Pixelmator Pro, separate purchase.

Photographers prioritizing noise reduction choose DxO. Gain: industry-leading DeepPRIME noise reduction, automatic lens corrections. Trade-off: $229 one-time, less compositing capability.