A few shifts have moved from hype to default in the apps I work on. Here's where I'm putting effort this year.
1. Server-driven UI for fast iteration
Shipping layout changes without an app-store review cycle keeps product velocity high, especially for merchandising and promotions.
2. On-device models for latency-sensitive UX
Small models for ranking, classification, and quick suggestions remove a network round-trip and keep private data on the device.
3. Billing abstraction you can trust
Server-verified receipts via RevenueCat / StoreKit make entitlements provable instead of claimed - the difference between a paywall and a suggestion.