GazeVault vs TwoLine
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
GazeVault
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Protect your private photos with the only lock that works as fast as you can blink. GazeVault is not just another calculator vault. It is a biometric fortress powered by Appleβs advanced TrueDepth technology. Most photo vaults have a weakness: once they are open, anyone can see them. GazeVault solves this. Using real-time gaze tracking, the app knows exactly when you are looking at the screen. The moment you glance away, look over your shoulder, or put your phone down, your content vanishes instantly. It is privacy that feels like magic. For Your Eyes Only. CORE FEATURES Gaze Lock (The Magic) Your photos are only visible when you make direct eye contact with the screen. If you look away, the screen blurs immediately. No buttons to press, no phone to flip. Just look away, and your secrets are safe. Intruder Alert Advanced facial detection scans the background constantly. If a second face is detected (like someone looking over your shoulder), GazeVault triggers a "Red Alert" mode, hiding all content instantly. Stealth Mode Hide the app in plain sight. Change the app icon to look like a fully functional Calculator, Weather App, or Notes App. Only you will know itβs there. Zero-Knowledge Privacy We believe your data belongs to you. GazeVault works 100% offline. No Cloud Uploads. No Accounts Required. Biometric data is processed locally on your device's Neural Engine and never saved. GazeVault PRO Upgrade to Pro for the ultimate security experience: Unlimited Storage: Secure as many photos as you want. Stealth App Icons: Access the full library of disguises (Calculator, Weather, etc.). Priority Support: Get help when you need it. Privacy Policy: https://gazevault.com/privacyTerms of Use: https://gazevault.com/terms Note: This app requires a device with FaceID (iPhone X or newer) to support TrueDepth gaze tracking.
TwoLine
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TwoLine helps you rent a second phone number for SMS verification, account setup, and privacy. Choose a supported country, pick a rental duration, add credits, and receive SMS messages in the app. Use TwoLine when you need a separate number without exposing your personal phone number. Active rentals show the phone number, expiry time, recent SMS messages, and clear policy information before purchase. Recent messages stay in one simple inbox so you can track codes and rental activity from the same place. What you can do with TwoLine: - Rent a 2nd phone number - Receive SMS verification codes - Use a separate number for account setup - Choose supported countries and rental durations - Manage active rentals and recent SMS messages - Add TwoLine credits through in-app purchases - Review refund and credit rules before renting - Delete account data from Settings TwoLine uses app credits. Store purchases add credits to your wallet, and rentals spend credits from that wallet. Some eligible rentals may offer a short credit-back window if no SMS arrives and cancellation succeeds. Credit-back is app credit only, not a cash refund. Important: TwoLine does not guarantee that any third-party app, website, financial service, bank, crypto exchange, or regulated platform will accept a rented number. Number availability, SMS delivery speed, app acceptance, and country support can vary by option. Review the rental policy before each purchase. TwoLine is not an emergency calling service and does not support voice calls. Privacy and account control: TwoLine creates an anonymous app account so wallet balance, rentals, and inbox messages can be tied to your device session. You can delete app account data from Settings. Privacy Policy, Terms of Use, and support links are available in the app and at twoline.io.
Screenshots
Verdict
The clearest difference is iOS requirement: TwoLine at 15.1 against GazeVault's 26.2. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. GazeVault sells 2 in-app purchases, starting at $0.99 per month and TwoLine sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | GazeVault | TwoLine |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.2 | 15.1 β better |
| Further details β not scored | ||
| Size | 13 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Mustafa Emre Ciftci | SERHAT DOGAN |
In-app purchases
GazeVault
- GazeVault Monthly Subscription$0.991 Month
- GazeVault Yearly Subscription$7.991 Year
TwoLine
- 5 TwoLine credits$4.99
- 10 TwoLine credits$9.99
- 25 TwoLine credits$24.99
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- 50 TwoLine credits$49.99
- 100 TwoLine credits$99.99









