# NRG Optimizer vs FreeMemory

The clearest difference is update cadence: FreeMemory at every 4 days against NRG Optimizer's every 13 months. NRG Optimizer's advantage is iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NRG Optimizer ships an update every 13 months, FreeMemory every 4 days. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | NRG Optimizer | FreeMemory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/freememory-storage-cleaner/id6775217142/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 154 MB | 8 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [T.G.L. Inc.](https://appshunter.io/developer/1629823848) | [Prateek Gupta](https://appshunter.io/developer/6775217144) |

## What reviewers say

### NRG Optimizer

[App page](https://appshunter.io/ios/app/nrg-optimizer/id1629823846)

**Features:** macOS Compatibility

**In-app purchases:** none


### FreeMemory

[App page](https://appshunter.io/ios/app/freememory-storage-cleaner/id6775217142)

This app helps you reclaim storage space by identifying and removing duplicate files, large media, and old screenshots. It offers a private, offline experience with no ads or subscriptions, allowing you to preview and confirm deletions.

**Highlights:** Duplicate photo and video remover, Large file and video finder, Screenshot organizer, Image optimizer and compressor, Offline operation, No ads or subscriptions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NRG Optimizer free?

NRG Optimizer is free to download, with no in-app purchases.

### Is FreeMemory free?

FreeMemory is free to download, with no in-app purchases.

### Do NRG Optimizer or FreeMemory have ads?

Neither NRG Optimizer nor FreeMemory shows ads.

### Which is updated more often, NRG Optimizer or FreeMemory?

NRG Optimizer ships an update every 13 months, and FreeMemory every 4 days. Most recently, NRG Optimizer was updated on November 7, 2026 and FreeMemory on November 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*