# セカイVPN vs Flex VPN

The clearest difference is review sentiment: Flex VPN at 78% against セカイVPN's 18%. Flex VPN also leads on monetization model (free with in-app purchases vs subscription) and update cadence (every 3 weeks vs every 10 months). セカイVPN's advantage is ads (none vs shown) and iOS requirement (12.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. セカイVPN sells 1 in-app purchase, starting at $4.49 per 7 days and Flex VPN sells 3 in-app purchases, starting at $3.49 per month. Whichever you choose, the download price is not the number that matters.

セカイVPN ships an update every 10 months, Flex VPN every 3 weeks. Both last shipped on October 29, 2026.

## The numbers

| Metric | セカイVPN | Flex VPN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (538 ratings)](https://appshunter.io/ios/app/flex-vpn-proxy-plus-unlimited/id1464897458/reviews)** |
| Number of ratings | — | **538** |
| Positive reviews | 17.9% of reviews | **78.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 17 MB | 60 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Interlink Co.,Ltd.](https://appshunter.io/developer/631169580) | [DITEC LTD](https://appshunter.io/developer/1464897457) |

## What reviewers say

### セカイVPN

[App page](https://appshunter.io/ios/app/vpn/id1301726885)

Access the internet with an IP address from various countries by connecting to VPN servers worldwide. Choose from a list of servers to use different country's IP addresses. Supports OpenConnect and IKEv2 for broad device compatibility.

**Highlights:** Connect to VPN servers in multiple countries, Use country-specific IP addresses, Select servers from a list, Supports OpenConnect and IKEv2, Compatible with various OS and devices

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| セカイVPN 1週間プラン | $4.49 | per 7 days |


### Flex VPN

[App page](https://appshunter.io/ios/app/flex-vpn-proxy-plus-unlimited/id1464897458)

This app provides a free, one-touch VPN connection for secure and anonymous web browsing. It allows users to select specific countries for server access, enhancing access to geo-restricted content and protecting privacy on public Wi-Fi.

**Highlights:** One-touch VPN connection, Select primary country for server access, Anonymous web surfing, Access geo-restricted content, Secure public Wi-Fi connections, Unlimited data transfer, No sign-up required

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 MONTH PRO ACCOUNT | $3.49 | per month |
| 6 MONTH PRO ACCOUNT | $14.99 | per 6 months |
| One year PRO account | $25.99 | per year |


## Frequently asked questions

### Is セカイVPN free?

セカイVPN is free to download, with in-app purchases available.

### Is Flex VPN free?

Flex VPN is free to download, with in-app purchases available.

### Do セカイVPN or Flex VPN have ads?

Flex VPN shows ads; セカイVPN does not.

### Which is updated more often, セカイVPN or Flex VPN?

セカイVPN ships an update every 10 months, and Flex VPN every 3 weeks. Most recently, セカイVPN was updated on October 29, 2026 and Flex VPN on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*