3D Wallpapers vs Cortex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Cortex
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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
Verdict
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
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.
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.
| Parameter | 3D Wallpapers | Cortex |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (10 ratings) — better | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 6 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 44 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | Ahmad Masood | Ippocode Technologies LLP |
In-app purchases
3D Wallpapers
- 3D WALLPAPERS PRO$1.99
Cortex
- Cortex Pro$19.99
Questions
Is 3D Wallpapers free?
Is Cortex free?
Do 3D Wallpapers or Cortex have ads?
Which is updated more often, 3D Wallpapers or Cortex?
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