NRG Optimizer vs FreeMemory

NRG Optimizer is a commercial application designed for Operations professionals looking to improve energy savings through smart control of smart devices like LED lighting, occupancy sensors, daylight sensors, electrical outlets and lighting controls.

FreeMemory is a free phone cleaner and storage optimizer. Scan your device to find duplicate photos, large files, videos, and old screenshots, then free up storage space — with no ads, no subscription, and no internet required. A fast, private storage cleaner and junk file remover in one app. No account, no cloud, no tracking. Works on every iPhone and iPad. 100% OFFLINE · Completely free forever · Safe for all ages FREE UP STORAGE IN 3 STEPS 1. Tap Scan - FreeMemory scans your phone in the background 2. Review - see duplicates, large files, and screenshots grouped by category 3. Delete - confirm once and reclaim your storage space You always preview files before deleting. Nothing is removed without your confirmation. 6 POWERFUL CLEAN-UP TOOLS DUPLICATE PHOTO REMOVER Find and delete duplicate photos and videos using exact file matching. The first copy is kept and protected, so you only remove the extras. LARGE IMAGE CLEANER Surface your biggest photos, sorted by size, and free up storage space. Full-resolution preview before you delete. LARGE VIDEO CLEANER Find the largest videos eating your storage. Play them in the built-in viewer, then delete. LARGE FILE MANAGER Forgotten documents and oversized files - every file over 5 MB sorted by size, so you instantly see what is wasting space. SCREENSHOT CLEANER Screenshots pile up fast. Swipe through them one by one to keep or delete, or batch-delete in seconds. IMAGE OPTIMIZER & PHOTO COMPRESSOR Compress large JPEG photos by up to 75% with little visible quality loss. See the before-and-after size, then compress in place - all on-device, fully offline. WHY USERS CHOOSE FREEMEMORY NO ADS - EVER Zero ads, banners, or pop-ups. A storage cleaner built for users, not advertisers. FREE FOREVER - NO SUBSCRIPTION No premium tier, no in-app purchases, no paywalls. Every tool is free today and always. PRIVATE BY DESIGN - NO INTERNET FreeMemory has no internet permission. Your photos, videos, and files never leave your device. No tracking, no analytics, no account. WORKS WITHOUT WI-FI OR DATA No signal? In flight mode? FreeMemory works everywhere because it never needed the internet. FAMILY SAFE Fully compliant with the App Store Families policy. No ads, purchases, social features, or data collection. DARK MODE & RESPONSIVE DESIGN Follows your system light or dark theme. Designed for iPhone and iPad with full landscape support. WHAT FREEMEMORY CLEANS - Duplicate photos and videos - Large photos and camera images - Large videos - Large files and documents - Screenshots and screen recordings - Oversized JPEGs (compresses without deleting) PERMISSIONS - NOTHING HIDDEN - Photo library access - to find and analyze photos - No internet, camera, microphone, contacts, or location access Free up space now with FreeMemory - the free, offline storage cleaner and photo organizer.