Screenshots of SleepZz

Features of Tusky

Material Design
Most Mastodon APIs implemented
Multi-Account support
Dark, light and black themes with the possibility to auto-switch based on the time of day
Drafts - compose posts and save them for later
Choose between different emoji styles
Optimized for all screen sizes
Completely open-source - no non-free dependencies like Google services

Screenshots of Tusky

Features of Stealth for Reddit

Browse Reddit (view posts, comments, subreddits, and users)
Search posts, subreddits and users
Subscribe to subreddits
Sort
History
Save posts and comments
Create different profiles (per-profile subscriptions, history and saved items)
Show/hide NSFW content
Image flairs
Awards
Save photos and videos
Light/Dark theme