⚡ 簡単な評価:
- 価格: OpenVPN starts free and moves to $7/month on Growth. Avast VPN ships inside bundles from $49.99/first yr.
- 最適な用途: Avast SecureLine VPN suits everyday browsing on Windows, マック, Android and iOS. OpenVPN suits remote access to private networks.
- 主な違い： One is a finished vpn service with apps. The other is an open source vpn protocol plus self-hosted server software.
- 私たちのおすすめ： OpenVPN, because you control the vpn server, the encryption ciphers and the logs yourself.
Most people meet these two products in completely different ways.
Avast SecureLine VPN usually shows up bundled with Avast antivirus.
OpenVPN usually shows up when a work laptop needs remote access.
So this is not a fair fight between two identical products.
It is a choice between a packaged vpn app and a protocol you run yourself.
概要
This Avast VPN vs OpenVPN comparison covers pricing, 安全 features, speed and setup effort.
Our sources are published specs, official documentation and G2 reviews.
Our writers also spent hands-on time with both products.
それらのメモは、以下の「チームが気づいたこと」のセクションに記載されています。
By the end you will know which one fits your internet connection and budget.
Avast VPN とは何ですか?
Avast SecureLine VPN is a consumer virtual private network built by Avast.
It hides your IP address and encrypts traffic on any public network.
You install one app, pick a country, and connect.
The network is small: around 700 servers in 34 countries.
Many vpns run far larger fleets, which limits your choices here.
It supports OpenVPN, WireGuard and the proprietary Mimic protocol.
アバストVPN
A plug-and-play vpn app for Windows, Mac, Android, iOS and Android TV. One subscription covers 10 devices. The 60 day trial is longer than most vpns offer.
アバストVPNの価格
Avast sells the VPN inside wider security bundles. Here is what our database records for Avast products.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料アンチウイルス | 無料 | Basic malware cover, no VPN |
| プレミアムセキュリティ | 初年度49.99ドル | Device security plus add-ons |
| 究極の | 初年度49.99ドル | Security, VPN and cleanup together |
Pricing verified September 2026.
無料トライアル: Yes. A 60 day free trial runs on every supported platform. You must enter payment information first.
返金保証: Avast lists a 30 day refund window on paid subscriptions bought directly.
📌 注記： Free trials of this length are rare. Nothing is charged until the 60 day trial ends, but cancel before day 60 if you do not want the renewal.
⚠️ Pricing conflict: Our research notes list standalone SecureLine plans at $4.59 per month on one year, $4.29 on two years and $4.39 on three years, with no monthly option. Our CSV records the bundle prices above, so the table and schema use the CSV figures. Check the checkout page before you buy.
Avast VPNの主な利点
Avast SecureLine VPNを検討する価値がある理由は以下のとおりです。
- Smart VPN mode: Set rules so the app can automatically connect on a chosen wi-fi network. Smart VPN can also stay off for banking sites you trust.
- Ten devices, one plan: One subscription covers 10 devices at once. That suits a family more than one device licences do.
- Multiple platforms: There is a Windows app, a Mac client, an Android app, an iOS build and Android TV support.
- キルスイッチ: If the vpn connection drops, the kill switch cuts your internet until the tunnel returns.
- Protocol choice: OpenVPN, WireGuard and the in-house Mimic protocol are all selectable in settings.
- 60 day trial: Two months of full access beats the 7 day free trials most vpns hand out.
- Simple by design: The app is built for everyday online activities, not for tinkering.
私たちのチームが気づいたこと
私たちの 作家 installed the Windows app and ran it for everyday browsing and streaming. Here is what stood out from that hands-on time:
The short clip below walks through the same session on screen.
Avast VPNのメリットとデメリット
✅ メリット
- 60 day free trial, longer than most competitors offer
- Beginner-friendly app that is easy to navigate
- Covers up to 10 devices on one subscription
- Smart VPN mode can turn the tunnel on automatically
- Based in the Czech Republic, outside data-sharing alliances
❌ デメリット
- Only around 700 servers in 34 countries
- No logs policy has no independent 監査 behind it
- The FTC fined Avast $16.5 million in February 2024
- Speeds fall off sharply on distant servers
OpenVPN とは何ですか?
OpenVPN is two things at once, and that trips people up.
First, it is an open source vpn protocol created in 2001.
Second, it is openvpn software you host: Access Server and CloudConnexa.
The openvpn protocol builds a secure tunnel using SSL/TLS.
It belongs to the Secure Sockets Layer family of vpn protocols.
You pick your own vpn server location instead of renting one.
That is why companies use it for remote access to private networks.
Most vpn providers also resell openvpn connections inside their own apps.
So you meet its encryption protocols even when the brand on screen says otherwise.
Very few virtual private networks have lasted this long without a rewrite.
🏆 Winner: OpenVPN
The OpenVPN Community Edition is free forever. Access Server adds a web console, user management and support. You keep control of the logs.
OpenVPNの価格設定
Pricing splits between the free community build and the hosted tiers. Here is what our database records.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | $0 | Self-hosted setups and testing |
| 成長 | 月額7ドル | Small teams needing a console |
| 企業 | カスタム | Large deployments and support |
Pricing verified September 2026.
無料トライアル: Not needed on the free tier. The community build stays free with no payment details at all.
返金保証: Paid connection tiers bill per user, so you can scale down instead of asking for a refund.
📌 注記： The $0 tier is real, but you still pay for hosting. A small cloud box for the openvpn server is the hidden cost here.
⚠️ 警告： Paid plans are priced per connection, so costs climb with vpn users. G2 reviewers flag the licensing model as expensive once teams grow.
OpenVPNの主な利点
Here is why OpenVPN is one of the few names every vpn provider still lists:
- コードを開く: Anyone can inspect the open source openvpn protocol for flaws. That constant scrutiny is why it keeps a place among the safest vpn protocols.
- TCP or UDP: OpenVPN TCP delivers every packet in order. OpenVPN UDP is faster but does not guarantee delivery.
- 強い 暗号: It supports AES and Blowfish through the OpenSSL library. Perfect Forward Secrecy limits the damage of any single breach.
- Firewall friendly: It moves through firewalls and NAT gateways that block other vpn protocols.
- Runs anywhere: Windows, macOS, Linux, Android and iOS are covered, plus oddities like Tomato and Solaris.
- Scales both ways: The same tool handles one laptop or site-to-site links for a large organisation.
- Editable config: Connections use plain 文章 .ovpn files you can open and edit yourself.
私たちのチームが気づいたこと
Our writer set up a self-hosted server and connected with the OpenVPN Connect client. Here is what stood out from that build:
OpenVPNのメリットとデメリット
✅ メリット
- The OpenVPN Community Edition is free to run
- Open source code anyone can audit or patch
- Handles both IPv4 and IPv6 traffic
- Bypasses firewalls and filtering hardware well
- You own the vpn server, so you own the logs
❌ デメリット
- Slower than newer protocols such as WireGuard
- 手動設定は初心者には複雑です
- Less friendly on mobile devices than on desktops
- No country-hopping server list for streaming
機能比較
These two products overlap on one job only: moving your traffic through an encrypted vpn tunnel. Everything around that job is built differently. Here are the ten areas that decide the choice.
| 特徴 | アバストVPN | オープンVPN |
|---|---|---|
| 開始価格 | 初年度49.99ドル | $0 free tier |
| 無料プラン | ❌ | ✅ |
| Ready-made server list | ✅ 34 countries | ❌ bring your own |
| Kill switch in app | ✅ | ❌ depends on client |
| オープンソースコード | ❌ | ✅ |
| Independent audit | ❌ | ✅ 2016-2017 code audits |
| ストリーミング対応 | ✅ mixed results | ❌ not the purpose |
| サイト間ネットワーク | ❌ | ✅ |
| 最適な用途 | Everyday online privacy | Remote access and control |
1. Setup and Ease of Use
アバストVPN: Download, install, sign in, connect. G2 and app store feedback point to a clean layout that beginners handle without a guide. Nothing about the vpn app expects networking knowledge.
オープンVPN: You install openvpn on a server, generate certificates, then import a profile into the openvpn client. OpenVPN Access Server adds a web console, but the client software still needs per-device setup. Most vpn providers ship the protocol preconfigured instead, which is why so many vpn clients already speak it. Manual configuration is where beginners stall.
2. サーバーネットワークと場所
アバストVPN: Around 700 Avast SecureLine VPN servers sit in 34 countries. Coverage is thin across the Middle East and Africa. The list includes streaming and torrenting servers, but the small fleet limits your options.
オープンVPN: There is no fleet. Your openvpn servers are wherever you deploy them, from one cloud box to site-to-site links between offices. Great for control, useless for hopping countries.
3. Protocols and Encryption
アバストVPN: You get three tunneling protocols: OpenVPN, WireGuard and Mimic, Avast’s custom security protocol. Mimic exists to survive networks that block standard vpn connections. The encryption keys and ciphers are not yours to change.
オープンVPN: How OpenVPN works is easy to describe. It sits at the transport layer, runs authentication, then wraps データ traffic in a secure tunnel. Transmission Control Protocol keeps every packet in order, while User Datagram Protocol trades that promise for speed. You choose the encryption algorithms and key lengths, and TLS auth plus an HMAC firewall guard the handshake. That control is why it is rated above most vpn protocols of the same age.
4. セキュリティ機能
アバストVPN: A kill switch stops traffic when the connection drops. Smart VPN mode can automatically connect on untrusted wi-fi. Reviewers still say it lacks standout security features next to rivals.
オープンVPN: Security comes from the design: certificate and credential authentication, public key infrastructure and a hash message authentication code on every packet. Access Server adds zero trust rules and DNS filtering on top.
⚠️ 警告： The openvpn protocol protects the tunnel, not the server owner’s behaviour. If you connect to somebody else’s box, their operator sees what an internet service provider would see. Run a test for dns leaks after you connect either way.
5. Privacy, Logging and Audits
アバストVPN: The no logs policy records timestamps, data volume and connection details, but not identifiable browsing data. There is no independent audit to confirm it. In February 2024 the US Federal Trade Commission ordered Avast to pay $16.5 million over a subsidiary, Jumpshot, that sold user data without consent.
オープンVPN: There is no privacy policy to trust because there is no middleman. QuarksLab and Cryptography Engineering audited the code between December 2016 and April 2017 and found two minor issues, both fixed. Sensitive data only crosses secure connections you built yourself.
6. 速度とパフォーマンス
アバストVPN: Performance is inconsistent. Nearby servers hold a fast connection, distant ones drop hard. Speed tests from other reviewers show the same split.
オープンVPN: The protocol is slower than WireGuard by design, since SSL/TLS adds overhead. Choosing the UDP protocol over TCP recovers much of it. On your own hardware, the ceiling is your host’s bandwidth.
7. ストリーミングとトレント
アバストVPN: It reaches Netflix, Disney+ and Amazon Prime Video, with mixed results elsewhere. Users report trouble with Hulu and BBC iPlayer. Dedicated P2P servers handle torrents.
オープンVPN: Streaming is not the point. A self-hosted exit IP is usually flagged as a data centre address, so services block it fast. If BBC iPlayer matters, this is the wrong tool.
8. デバイスのサポートとアプリ
アバストVPN: Windows, macOS, Android, iOS and Android TV builds exist, and 10 devices run on one plan. Avast products also ship browser extensions and a hardened browser, though those are separate from the VPN.
オープンVPN: OpenVPN Connect covers the same operating systems, plus Linux and router firmware that Avast never reaches. The openvpn gui on Windows is functional rather than pretty. Setting up one device at a time is normal.
9. Support and Documentation
アバストVPN: Support comes through the Avast help centre and ticketing. Some users describe it as unhelpful, especially on billing questions. Many also find Avast SecureLine VPN installed on their computer without remembering the install.
オープンVPN: Documentation, source code, a wiki and a community forum cover almost every 質問. G2 reviewers rate the paid support well. The trade-off is that free users are self-served.
10. 価格設定とコスト
Here are both price lists side by side, straight from our database.
| プラン | アバストVPN | オープンVPN |
|---|---|---|
| 無料 | Free Antivirus: Free (no VPN) | 無料：0ドル |
| 入場料支払い済み | プレミアムセキュリティ：初年度49.99ドル | Growth: $7/month |
| 最高級 | アルティメットプラン：初年度49.99ドル | エンタープライズ：カスタム |
アバストVPN: You are buying a bundle, not a lone vpn service. Premium Security and Ultimate both list at $49.99 for the first year, so Ultimate is the one that carries the VPN. Renewal prices are higher.
オープンVPN: Free means free if you self-host. Growth at $7/month buys the console and user management. Budget for server hosting on top of either.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| Zero software cost | オープンVPN | 無料プラン、カード不要 |
| One-tap protection on public wi-fi | アバストVPN | Smart VPN handles it |
| Netflix and Prime Video | アバストVPN | Real server list |
| Remote access to an office | オープンVPN | Built for private networks |
| Proof of no logging | オープンVPN | You own the vpn server |
| Cover for 10 devices | アバストVPN | One subscription, ten seats |
💰 あなたの予算
OpenVPN’s free tier costs nothing but your hosting bill. Avast asks $49.99 for the first year of a bundle, and renewals cost more.
🔌 あなたの技術スタック
If you already run a cloud server, OpenVPN slots in beside it. If your stack is one laptop and a phone, the Avast app is less work.
🎓 あなたの経験レベル
Certificates, ports and .ovpn files are normal for sysadmins and painful for everyone else. Be honest about which group you are in.
📺 あなたのストリーミング習慣
Only one of these has a country list to switch between. If you want BBC iPlayer or Prime Video abroad, a self-hosted tunnel will not help.
🆓 無料トライアルとデモ
Use the 60 day free trial before paying Avast anything. OpenVPN needs no trial because the community build never expires.
🛟 サポートオプション
Avast gives you a help desk that reviewers criticise. OpenVPN gives you documentation, forums and paid support tiers for 仕事 アカウント。
切り替えガイド
Already running one of them? Here is what changes.
🔄 Switching from Avast VPN to OpenVPN?
✅ 得られるもの：
- No subscription and no renewal price jump
- Full control of encryption ciphers and logging
- Site-to-site and zero trust options for work
❌ 失うもの：
- The 34-country server list
- Smart VPN mode and the built-in kill switch
- Android TV and one-tap mobile connections
📋切り替え方法：
- Cancel the Avast subscription before the renewal date
- Deploy Access Server or the community build on a host
- Import the .ovpn profile into OpenVPN Connect and test
🔄 Switching from OpenVPN to Avast VPN?
✅ 得られるもの：
- Servers in 34 countries with no setup
- Streaming and torrenting servers that are maintained
- Ten device seats and a phone app your family can use
❌ 失うもの：
- Control over the server and its logs
- Free operation and open code you can inspect
- Custom ports and certificate rules
📋切り替え方法：
- Shut down the openvpn server and revoke old certificates
- Start the 60 day trial and install the Windows app
- Set Smart VPN rules for your home and office wi-fi
私たちのレビューで取り上げられなかったこと
We did not run lab stress tests, long-run speed tests or streaming checks across every region. Enterprise licensing, custom deployments and router-level installs sit outside this comparison. Our notes reflect the September 2026 builds, and both products change often.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | オープンVPN |
| 👶 使いやすさ | アバストVPN |
| 🌍 サーバーネットワーク | アバストVPN |
| 🔐 Protocols and Encryption | オープンVPN |
| 🕵️ Privacy and Audits | オープンVPN |
| 📺 ストリーミング配信 | アバストVPN |
| 🏢 リモートアクセス | オープンVPN |
| 📚 Documentation | オープンVPN |
| 🏆総合優勝 | オープンVPN |
🏆 WINNER: OPENVPN
OpenVPN wins 5 of 8 categories.
最適な用途: remote access, self-hosted privacy, technical users, 仕事 networks
OpenVPN takes it because trust is built into the design rather than promised in a policy. You run the server, you set the encryption, and nobody else holds your connection records.
Avast SecureLine VPN is still the easier product. The 60 day free trial, the ten device allowance and the Smart VPN rules all make sense for a household that wants more security without homework.
What holds it back is the record. A small server fleet, no independent audits and a $16.5 million FTC penalty are hard to look past when rivals cost the same.
Pick Avast if you want to click one button. Pick OpenVPN if you want to know exactly what the tunnel is doing.
Avast VPNの比較をもっと見る
Here is how Avast SecureLine VPN lands against the vpn services people usually shortlist beside it:
Avast VPNが優れている点： the 60 day trial window, the simpler first-run screen, ten device seats
NordVPNが優れている点： a far bigger server count, audited no-logs claims, steadier speeds on long-distance routes
Avast VPNが優れている点： lower first-year cost inside a bundle, antivirus in the same purchase, Android TV support
ExpressVPNが優れている点： published audit history, wider country coverage, more reliable streaming unblocking
Avast VPNが優れている点： a longer trial, a lighter Windows client, bundled cleanup and AntiTrack tools
サーフシャーク 勝利したタイトル： unlimited devices, cheaper multi-year pricing, split tunneling on more platforms
Avast VPN vs プライベートインターネットアクセス
Avast VPNが優れている点： less cluttered settings, clearer plan names, longer risk-free window
PIAが勝利した点： letting you pick encryption levels, courtroom-tested logging record, far larger network
OpenVPNの比較についてさらに詳しく
And here is how OpenVPN reads against the vpn providers that use or replace it:
OpenVPNが優れている点： zero cost at the free tier, self-owned infrastructure, editable configuration files
NordVPNが優れている点： instant setup, a ready server map, consumer streaming performance
OpenVPNが優れている点： site-to-site links, zero trust access rules, no account required for the community build
プロトンVPN 勝利したタイトル： a usable free consumer tier, Secure Core routing, polished mobile apps
OpenVPN vs CyberGhost
OpenVPNが優れている点： transparency of code, business remote access, control over ports and ciphers
CyberGhostが勝利した点： one-click protocol switching, purpose-built streaming servers, beginner onboarding
よくある質問
Avast VPNは本当に効果があるのか？
Yes. The tunnel encrypts traffic and hides your IP address on any network. Nearby servers perform well, but distant ones slow down noticeably.
OpenVPN は無料ですか?
The community build is free and always has been. Hosted plans start at $7 per month, and you still pay for whatever server you run it on.
VPNとOpenVPNの違いは何ですか？
A VPN is the service. OpenVPN is the protocol that service can use to build the tunnel. Many paid providers run it under their own apps.
Avast SecureLine VPNは安全に使用できますか？
It encrypts your traffic properly. The concern is trust, not code: no third-party audit backs the no-logs claim, and the FTC penalised the parent company in 2024.
OpenVPNはNordVPNより優れているのか？
For remote access and control, yes. For streaming, country switching and easy apps, NordVPN wins. They solve different problems despite sharing the protocol.
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