VPN USA vs Sudoku Solver
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VPN USA
This application provides a secure and user-friendly way to connect to VPN servers globally. It offers features like server search, quick connections, and favorites for faster access. A free version includes a 5-minute connection limit, while premium unlocks unlimited time and enhanced servers.
- Global VPN server connection
- Server search functionality
- Quick connection options
- Add preferred servers to Favorites
- Free version with time limit
- Premium version for unlimited access
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Our application provides a simple and reliable way to connect to VPN servers around the world. With an intuitive interface and fast setup, you can easily access available server locations, save your favorite servers, and switch between them whenever you need. The free version includes access to VPN servers with a 5-minute connection limit while still allowing you to search and save favorite servers for quick access. Upgrade to Premium to enjoy unlimited connection time, access to premium servers, and an enhanced browsing experience. Key Features: - Access VPN servers in multiple countries - Fast and stable connections - Save favorite servers for quick access - Easy server search and switching - Clean and user-friendly interface - Reliable performance for everyday use Our application is designed to make connecting to VPN servers fast, convenient, and effortless. This application contains auto-renewable subscriptions and In-App Purchases. Subscription Plans: 1 Week — USD 4.99 1 Month — USD 12.99 1 Year — USD 39.99 Lifetime — USD 59.99 Subscriptions renew automatically unless canceled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription at any time through your App Store account settings. Apple's Standard EULA applies unless a custom license agreement is provided. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://docs.google.com/document/d/1WBbzJPwYJkHNsN_XefwNKRuK3R4eWoBWs2nZjEbRg-M/edit?usp=sharing
Sudoku Solver
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The only scanner that solves a Samurai. Point your camera at a printed Sudoku and get the solution. Not just the standard 9×9 — Sudoku Solver reads the five-grid Samurai too, the one no other scanner will touch. HOW IT WORKS Hold your phone over the puzzle. It finds the grid, reads the digits, and works out the answer — usually in about a second. Nothing to type in, nothing to line up. IT TELLS YOU HOW, NOT JUST WHAT Every solution names the techniques the puzzle actually needed — naked singles, hidden pairs, X-Wings — so you can see where you were stuck. Want to work through it properly? One tap opens the exact board in Samuraiku and walks you through it step by step. SHARE THE ANSWER Send or print a clean solution card with the original clues in bold, so you can check your own work against it. WHAT IT DOESN'T DO No ads. No subscription. No account. Nothing is uploaded — the camera image never leaves your phone, and it's never saved to your photo library. You pay once. Classic 9×9 and Samurai. Works offline. Made by the people behind Samuraiku.
Screenshots
Verdict
The clearest difference is price: VPN USA at Free against Sudoku Solver's $3.99. Sudoku Solver's advantage is in-app purchases (none vs 5). On update cadence, ads, device support and iOS requirement 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
VPN USA is free to download; Sudoku Solver costs $3.99 up front. VPN USA sells 5 in-app purchases, starting at $4.99 per 7 days. Sudoku Solver asks for nothing beyond the download.
VPN USA ships an update monthly, Sudoku Solver every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | VPN USA | Sudoku Solver |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.0 (12 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 94 MB | 2 MB |
| Age rating | 4+ | +4 |
| Developer | Developer-EM SIA | Karl Groethe |
In-app purchases
VPN USA
- Weekly$4.997 Days
- Weekly-Trial3 Days trial$4.997 Days
- Monthly$12.991 Month
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- Yearly$39.991 Year
- Lifetime$59.99
Sudoku Solver
No in-app purchases









