Comparison

3D Wallpapers vs Cortex

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

3D Wallpapers

Experience stunning 3D wallpapers with deep contrast and AMOLED optimization for your home and lock screens. Discover over 100,000 HD & 4K options, with daily updates and smart categories for easy browsing. Download in high resolution for a visually captivating device.

Highlights
  • True 3D and depth effect wallpapers
  • AMOLED-optimized with deep contrast
  • 4K Ultra HD quality
  • Lightweight and battery-friendly
  • Daily updates with fresh designs
  • Smart categories and powerful search
Features
Read full description

A beautiful app that gives a AMOLED 3D experience to your home and lock screen, currently we have 350+ official HD wallpapers and we are continuously updating our store whilte in user section we have more than 100K HD & 4K wallpapers. Bring Your Screen to Life with 3D Wallpapers – AMOLED 4K This incredible cool wallpapers maker has a vast collection of 4K wallpapers in 3D with stunning effects from which you can choose.Download now for a unique experience. Key Features: – True 3D & depth effect wallpapers – AMOLED-optimized with deep contrast – 4K Ultra HD quality – Lightweight & battery-friendly – Daily updates with fresh designs – Smart categories: Popular, Random, Featured, Recent – Powerful search with blur-effect bar – Download Wallpapers in 4K Resolution

About

Cortex

Read full description

Cortex reads your images, documents, and text — entirely on your device. No cloud. No account. No data sent anywhere. After a one-time model download, it works with no internet connection at all. Built for professionals who can't hand their confidential work to a cloud service, Cortex gives you the full power of a modern AI without the data exposure. No terms of service that claim rights to your inputs. No server logs. No risk of a breach leaking your client's name. Key features: - Voice mode — speak naturally, get spoken replies. Fully on-device, nothing stored - Audio & video input — attach media files and ask questions about them - Image & document input — analyse photos, contracts, receipts, prescriptions and more - Fully offline after model download — works on a plane, in a courthouse, anywhere - Zero data collection — nothing is ever transmitted or stored outside your device - 43 supported languages — switch freely between languages in any conversation - One-time purchase — no monthly subscription, no usage limits after going Pro - Free tier included — 25 messages per day at no cost, upgrade whenever you're ready - GDPR-friendly — no data transfers to US servers or third parties Cortex runs a powerful on-device language model entirely on your hardware, giving you conversational AI that's fast and capable without any cloud dependency. Download free and try it today. Upgrade once — use it forever.

Screenshots

3D Wallpapers4 screens
Cortex4 screens

Verdict

The call

The clearest difference is iOS requirement: 3D Wallpapers at 12.0 against Cortex's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 3D Wallpapers sells 1 one-off in-app purchase and Cortex sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

3D Wallpapers ships an update every 6 months, Cortex every 4 months. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 8 level
3D Wallpapers versus Cortex: the parameters behind the verdict, then further details
Parameter3D WallpapersCortex
PriceFreeFree
Rating5.0 (10 ratings) — better—
Number of ratings10 — better—
Update frequencyEvery 6 monthsEvery 4 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size44 MB84 MB
Age rating4+4+
DeveloperAhmad MasoodIppocode Technologies LLP

In-app purchases

1 purchases

3D Wallpapers

One-time1
  • 3D WALLPAPERS PRO$1.99
1 purchases

Cortex

One-time1
  • Cortex Pro$19.99

Questions

Is 3D Wallpapers free?
3D Wallpapers is free to download, with in-app purchases available.
Is Cortex free?
Cortex is free to download, with in-app purchases available.
Do 3D Wallpapers or Cortex have ads?
Neither 3D Wallpapers nor Cortex shows ads.
Which is updated more often, 3D Wallpapers or Cortex?
3D Wallpapers ships an update every 6 months, and Cortex every 4 months. Most recently, 3D Wallpapers was updated on November 1, 2026 and Cortex on October 31, 2026.

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