App Overview

f3 vpn - simple VPN icon

f3 vpn - simple VPN

Frigate Inc · Productivity

f3 VPN will help you ensure complete protection of your personal data and make Internet surfing safe without loss of speed

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
3.9
199 ratings · Top 50%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

First kit free with a verified email

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Combine features and design from your favorite apps.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Free quick prompt For a smaller starting point

Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for f3 vpn - simple VPN: map the core Productivity workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Implement faster server selection and optimize connection algorithms.

Assumption to check: Users report connection issues and slow speeds

Validate with people who use this workflow before building.

Hypothesis 2

Expand server network and allow users to suggest new locations.

Assumption to check: Limited server locations compared to competitors

Validate with people who use this workflow before building.

Hypothesis 3

Simplify settings layout and improve usability.

Assumption to check: Confusing settings menu

Validate with people who use this workflow before building.

Hypothesis 4

Provide a more user-friendly paywall and offer a better free-tier experience.

Assumption to check: Frequent ads or paywalls

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

f3 VPN will help you ensure complete protection of your personal data and make Internet surfing safe without loss of speed. All our servers are available at maximum speed for all f3 VPN app users. We do not store or transfer your data to anyone. At the same time, we try to ensure your safety and speed on the Internet as much as possible. FOR WHAT? • Using public Wi-Fi networks in cafes, bars, the subway and other public transport, your data stored on the device often becomes available to cyber fraudsters. Often, criminals can gain access to your information. f3 VPN Proxy will increase the protection of your device from unauthorized data interception. • When transferring files, photos and text information on social networks or instant messengers, you must enable VPN in our application, thereby protecting your confidential data. • Using a VPN, you can get rid of intrusive advertising based on your search history, since the f3 VPN application will hide your real IP address, and many sites will not be able to find out about your preferences and life plans. • Not satisfied with the Internet speed? Try connecting to VPN from f3 and services will be available at maximum speed. WHY US? - We use some of the fastest servers in different regions of the world and are ready to share with you. - Always the maximum speed on servers in different locations. - Connect to VPN quickly with the click of a button. - Maximum simple settings, anyone can handle it. - Technical support will answer any questions upon your first request. • Many locations! • Top speed! • 24/7 support We look forward to your feedback on the application, both positive and negative. Feel free to write to us! Always with you, f3 VPN service team! Application support [email protected] Privacy Policy: https://f3cdn.org/privacy-policy.html Terms of use: https://f3cdn.org/terms-and-conditions.html

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
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axios
react-native-netinfo
BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.