⚡ Quick Verdict:
- 価格: Proton VPN starts at $0/month (free plan) with paid plans from $2.99/month. Avast VPN starts at $4.39/month with no free plan.
- 最適な用途: Proton VPN for privacy-first users who want open-source transparency. Avast VPN for existing Avast antivirus users who want a simple add-on.
- 主な違い： Proton VPN has 8,600+ servers in 112 countries with verified no-logs. Avast VPN has around 700 servers in 34 countries with no independent 監査.
- Our pick: Proton VPN for most users — it offers a stronger server network, better privacy credentials, and a genuinely free plan.
ProtonVPN and Avast VPN protect your internet connection in very different ways.
One is built by a Swiss privacy company with open-source apps and Proton VPN’s focus on transparency.
The other comes from a well-known antivirus brand with a troubled data history.
This comparison breaks down both VPN services so you can pick the right VPN provider for your needs.
概要
This ProtonVPN vs Avast VPN comparison covers pricing, privacy, server networks, and ease of use.
We also break down who each VPN provider works best for.
Our sources include published specs, official documentation, and user reviews.
By the end, you’ll know which VPN service fits your needs.
ProtonVPNとは何ですか？
Proton VPN is a premium VPN service built by Proton Technologies AG in Switzerland.
It helps you hide your IP address and encrypt your internet traffic through an encrypted tunnel.
Proton VPNアプリはWindowsで動作します。 マック, iOS, Android, and Linux. The Windows app and Android app both support the same security features.
Most users choose it because Proton VPN easy setup takes just minutes. Does Proton VPN work well? Yes — it supports VPN connections on up to 10 devices. Is Proton VPN good for beginners? It’s simple enough for anyone.
Proton VPN offers access to Tor servers, dedicated servers for P2P, and Secure Core for double VPN routing. You can also visit Proton VPN’s website for a full list of Proton services.
プロトンVPN
Swiss-based VPN with 8,600+ servers in 112 countries. Free plan available with unlimited bandwidth. All apps are open-source and independently audited.
ProtonVPNの料金
2026年のProton VPNの料金は以下の通りです。
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | 月額0.00ドル | 1台のデバイスで基本的なブラウジングを行う |
| プラス | 月額2.99ドル | すべての機能を備えた完全なVPNアクセス |
| 無制限 | 月額7.99ドル | VPN + Proton Mail、Drive、Pass |
Pricing verified May 2026.
無料トライアル: Proton VPN offers a permanent free tier. No credit card needed. The free version gives you unlimited bandwidth on one device.
返金保証: 有料プランにはすべて30日間の返金保証が付いています。
📌 注記： The free plan limits you to one device and servers in a few countries. The Plus plan unlocks 8,600+ VPN servers, 10 devices, and features like Secure Core and NetShield.
⚠️ 警告： Proton VPN’s prices renew at the standard rate after your first term. The 2-year Plus plan renews at $9.99/month. Cancel before renewal to avoid the price jump.
ProtonVPNの主な利点
Here’s what makes Proton VPN worth considering:
- スイスのプライバシー保護： Proton VPN is based in Switzerland. The country has some of the world’s strongest privacy laws and sits outside surveillance alliances. Your internet service provider cannot see your online activities.
- 検証済みのログなしポリシー: Independent auditors have confirmed that Proton VPN does not store IP logs, IP addresses, or browsing data. Proton VPN is good for journalists and activists who need real privacy.
- セキュアコアサーバー: Your internet traffic routes through privacy-friendly countries before reaching the endpoint server. This adds an extra layer of protection against network-level attacks.
- NetShield広告ブロッカー： Proton VPN blocks ads, trackers, and malware at the DNS level. It also includes a DNS leak test to verify your connection. Your browsing gets faster and cleaner.
- オープンソースアプリ： Every Proton VPN app is open-source. Anyone can inspect the code for security features. The Linux app is also available, making it a good choice if you’re a Linux user.
- VPNアクセラレーター： This feature uses advanced networking to speed up your VPN tunnel, improving internet speeds on distant server locations.
- Unlimited Free VPN: The free version has no ads and no data caps. Compared to other free VPNs, Proton VPN is not an expensive VPN — it’s free. You can download and install it from Proton VPN’s website with no payment needed.
What Our Team Noticed
私たちの 作家 signed up for Proton VPN and spent several days exploring the platform. Here’s what stood out:
ProtonVPNのメリットとデメリット
✅ メリット
- 帯域幅無制限で広告なしの無料プラン
- 112か国に8,600台以上のサーバーを設置
- スイスを拠点とする、監査済みのログなしポリシー
- すべてのプラットフォームで利用できるオープンソースアプリ
- Secure Core and Tor over VPN support
❌ デメリット
- 無料プランはデバイス1台とサーバー数に制限されています
- Secure Core servers slow down internet speeds
- ライブチャットサポートは利用できません。
- 最初の契約期間終了後、更新料金が急騰する
Avast VPN とは何ですか?
Avast SecureLine VPN is a virtual private network from the Avast antivirus company based in the Czech Republic.
It encrypts your internet connection on multiple platforms and hides your IP address on public Wi-Fi and public network connections.
The VPN app works on Windows, macOS, Android, iOS, and Android TV. The Windows app is beginner-friendly. There are no browser extensions available.
If you use Avast SecureLine VPN, you get a fast VPN for basic online privacy and protection on banking sites.
Most users pick it because Avast products bundle together. The VPN integrates with other Avast security tools for more security on your devices.
アバストVPN
Simple VPN from a well-known antivirus brand. Comes with a 60-day free trial and supports up to 10 devices. Works well for basic browsing and public Wi-Fi protection.
アバストVPNの価格
2026年におけるAvast SecureLine VPNの料金は以下の通りです。
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料アンチウイルス | 無料 | VPNなしの基本的なウイルス対策 |
| プレミアムセキュリティ | 初年度49.99ドル | ウイルス対策ソフト＋VPNバンドル |
| 究極の | 初年度49.99ドル | VPNを含む完全なセキュリティスイート |
Pricing verified May 2026.
無料トライアル: Avast SecureLine VPN comes with a 60-day free trial. This is one of the longest free trials in the VPN market.
返金保証: Paid subscriptions include a 30-day money-back guarantee. The refund process requires contacting support directly.
📌 注記： The standalone Avast SecureLine VPN is also available separately with 1-year, 2-year, and 3-year plans. Expect to pay around $4.59/month for a 1-year plan or $4.29/month on the 2-year plan.
⚠️ 警告： Avast’s renewal prices are much higher than the initial discounted rate. A 3-year plan that starts at $4.39/month renews at $8.19/month. Cancel before renewal to avoid paying double.
Avast VPNの主な利点
Here’s what makes Avast VPN worth considering:
- 60日間無料トライアル： You get two full months to test the VPN service. Most VPN providers only offer 7 days or 30-day money-back guarantees.
- スマートVPNモード: This feature lets the app automatically connect when you join a public Wi-Fi network. You set the rules once and forget about it.
- シンプルなインターフェース: The VPN app is clean and beginner-friendly. You click one button to connect. No technical knowledge needed.
- 10個のデバイス接続: One subscription covers up to 10 devices at the same time. Good for families or users with multiple platforms.
- ウイルス対策ソフトバンドル： If you already use Avast antivirus, the VPN fits into your existing security setup with no extra apps to manage.
- キルスイッチ保護： If your VPN tunnel drops, the kill switch cuts your internet connection to prevent DNS leaks and data exposure.
What Our Team Noticed
Our writer signed up for Avast SecureLine VPN and spent several days testing it. Here’s what stood out:
Avast VPNのメリットとデメリット
✅ メリット
- 60-day free trial with full feature access
- シンプルで初心者にも優しいインターフェース
- Smart VPN mode for automatic public Wi-Fi protection
- 10台のデバイスを同時に接続可能
❌ デメリット
- 34か国にわずか700台のサーバーしかない
- No independent audit to verify no-logs claims
- Parent company fined $16.5M for selling user data
- 遠隔地のサーバーでは速度が大幅に低下します。
機能比較
Let’s compare ProtonVPN and Avast VPN across 9 key categories. This will help you see where each VPN service stands.
| 特徴 | プロトンVPN | アバストVPN |
|---|---|---|
| 開始価格 | 月額0ドル（無料） | 月額4.39ドル |
| 無料プラン | ✅ | ❌（60日間無料トライアル） |
| サーバーネットワーク | 112か国で8,600人以上 | 約700人、34カ国 |
| ログなし監査 | ✅ 独立監査 | ❌ 監査なし |
| キルスイッチ | ✅ | ✅ |
| スプリットトンネリング | ✅ | ✅ |
| オープンソースアプリ | ✅ | ❌ |
| ストリーミングサポート | ✅ Netflix、BBC iPlayer | ✅ Mixed results |
| 最適な用途 | プライバシーを最優先するユーザー | Avastアンチウイルスユーザー |
1. サーバーネットワーク
プロトンVPN: Proton VPN runs 8,600+ servers across 112 countries. This gives you more server locations and better chances of finding a fast connection nearby. All servers are owned and operated by Proton, not rented from third parties.
アバストVPN: Avast SecureLine VPN has around 700 servers in 34 countries. That’s a much smaller network. The US has the most locations with 25 cities, but most other countries get just one server location.
2. プライバシーとセキュリティ
プロトンVPN: Proton VPN passed a third-party audit that verified its strict no-logs policy. The VPN provider is based in Switzerland, which sits outside surveillance alliances. All Proton apps are open-source, so anyone can inspect the code. Among other VPN providers, few match this level of transparency.
アバストVPN: Avast SecureLine VPN claims a no-logs policy but has no independent audits to back it up. The company records connection timestamps and data transfer amounts for up to 35 days. In 2024, the FTC fined Avast $16.5 million for selling user browsing data through its Jumpshot subsidiary. Compared to other VPN services, this is a major red flag.
⚠️ 警告： Avast’s data privacy controversy is a serious concern for anyone who values online privacy. The Jumpshot incident involved selling browsing data collected through Avast antivirus without user consent.
3. VPNプロトコル
プロトンVPN: Proton VPN supports OpenVPN, IKEv2, and WireGuard. It also has a Stealth protocol that disguises your VPN tunnel as normal internet traffic. This helps bypass censorship in restricted regions.
アバストVPN: Avast SecureLine VPN supports OpenVPN, WireGuard, and its proprietary Mimic protocol. The Mimic protocol works similar to Proton’s Stealth by hiding VPN traffic. Both VPN providers cover the main protocol options well.
4. ストリーミングとコンテンツへのアクセス
プロトンVPN: Proton VPN works with Netflix, BBC iPlayer, and Amazon Prime Video. Its large server network with Proton VPN servers gives you more options for accessing geo-restricted Prime Video content. Streaming performance stays consistent on a fast connection across most server locations.
アバストVPN: Avast SecureLine VPN can access Netflix, Disney+, and Amazon Prime Video. However, reviews note mixed results with BBC iPlayer and Hulu. The smaller Avast SecureLine VPN servers network means fewer options for accessing streaming optimized servers on different platforms.
5. 速度とパフォーマンス
プロトンVPN: Proton VPN uses its VPN Accelerator feature to boost internet speeds. This helps reduce latency on distant VPN servers. Note that Secure Core servers do slow down your internet connection because they route traffic through extra locations.
アバストVPN: Avast SecureLine VPN performs well on nearby servers but shows noticeable speed drops on distant ones. Reviews report around a 20% speed loss on US West Coast and Asian servers. The small server network can also cause slower speeds during peak hours.
6. 無料プランと無料トライアル
プロトンVPN: Proton VPN offers a permanent free plan with no ads and unlimited bandwidth. The free version limits you to one device and servers in a few countries. No credit card is required to start using it.
アバストVPN: Avast SecureLine VPN has a 60-day free trial instead of a free plan. You get full access to all features during the trial. After 60 days, you must subscribe or lose access entirely.
7. 使いやすさ
プロトンVPN: The Proton VPN app has a clean design with a map-based interface. You click on a country to connect. It takes a few minutes to set up. The Linux app is also available, which is rare among VPN providers.
アバストVPN: Avast SecureLine VPN has a very simple interface. One big button to connect. The Smart VPN mode automatically connects on public networks. It’s designed for people who want set-and-forget protection.
8. 高度なセキュリティ機能
プロトンVPN: Proton VPN includes Secure Core servers, Tor over VPN access to the Tor network, split tunneling, port forwarding, and DNS leak protection. The NetShield feature blocks ads and malware at the VPN server level. Proton VPN also publishes a transparency report on legal requests and supports VPN connections across your mobile device and desktop.
アバストVPN: Avast SecureLine VPN includes a kill switch, DNS leak protection, and WebRTC leak protection. It lacks double VPN routing, Tor support, and port forwarding. The VPN also has no browser extensions. Security features are basic compared to what other VPN providers offer in the same price range.
9. 価格設定とコスト
料金プランを並べて比較してみましょう。
| プラン | プロトンVPN | アバストVPN |
|---|---|---|
| 無料／トライアル | 0ドル（永久無料プラン） | 60日間無料トライアル |
| 最も安い給料 | 月額2.99ドル（2年間契約） | $4.29/month (2-year) |
| 毎月 | 月額9.99ドル | 月額プランはありません |
| バンドル | 月額7.99ドル（無制限） | 初年度料金：49.99ドル（プレミアムセキュリティ） |
プロトンVPN: The free plan alone makes Proton VPN a better value. The Plus plan at $2.99/month gives you full access to all VPN features. The Unlimited plan adds Proton Mail, Proton Drive, and プロトンパス.
アバストVPN: Avast SecureLine VPN costs $4.29/month on a 2-year plan. That’s $1.30 more per month than Proton VPN’s equivalent plan. Avast also doesn’t offer a monthly subscription, so you must commit to at least one year.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| 予算が限られている | プロトンVPN | 無料プランあり |
| 最大限のプライバシー | プロトンVPN | 監査済み、ログなし、スイス拠点 |
| 簡単なセットアップ | アバストVPN | One-button connection |
| 大規模なサーバーネットワーク | プロトンVPN | 8,600台以上 vs 約700台のサーバー |
| 長期無料トライアル | アバストVPN | 60日間フル機能無料トライアル |
| ストリーミングアクセス | プロトンVPN | より信頼性の高いブロック解除 |
💰 あなたの予算
Proton VPN wins on price. The free plan gives you unlimited bandwidth at no cost. Even the paid Plus plan is cheaper than Avast’s cheapest option.
🔌 あなたの技術スタック
If you already use Avast antivirus, SecureLine VPN fits right in. If you use Proton Mail or Proton Drive, the Proton Unlimited plan bundles everything together.
🔒 あなたのプライバシーのニーズ
For journalists, activists, or anyone with critical privacy needs, Proton VPN is the clear pick. Its audited no-logs policy and Swiss jurisdiction provide real protection. Proton VPN support staff handle privacy inquiries through secure email channels. Avast’s data selling history makes it a weaker choice among VPN companies.
🎓 あなたの経験レベル
Both VPN apps are beginner-friendly. Avast VPN is slightly simpler with its one-button design and smart VPN mode that can automatically connect. Proton VPN offers more settings but the interface stays clean. Either way, both let you connect to a secure VPN in seconds.
🆓 無料トライアルとデモ
Try Proton VPN’s free plan first. It has no time limit, unlike many VPNs with short free trials. If you want to test Avast with full features including speed tests and stress tests, use the 60-day trial before committing. Both best VPNs in this comparison let you try before you buy.
🛟 サポートオプション
Neither VPN offers live chat support, which is a weak spot for both. Proton VPN has email-based customer support. Avast support has received mixed reviews from users.
切り替えガイド
既にこれらのツールのいずれかをご利用ですか？切り替える場合、どのような変更が予想されますか？
🔄 ProtonVPNからAvast VPNに切り替えますか？
✅ 得られるもの：
- 60-day free trial with all features unlocked
- Smart VPN mode for automatic public network protection
- Avast antivirus integration in one dashboard
❌ 失うもの：
- Access to 8,600+ servers across 112 countries
- Secure Core routing and Tor over VPN
- Verified no-logs policy and open-source transparency
📋切り替え方法：
- Cancel your Proton VPN subscription in your Proton account settings
- Avast SecureLine VPNをダウンロードして、60日間の無料トライアルを開始しましょう。
- Set up Smart VPN rules and connect to your preferred server
🔄 Avast VPNからProtonVPNに切り替えますか？
✅ 得られるもの：
- 8,600+ servers with better global coverage
- 監査済みのログなしポリシーとオープンソースアプリ
- Free plan with unlimited bandwidth forever
❌ 失うもの：
- Smart VPN auto-connect for public networks
- Avast antivirus integration
- 超シンプルなワンボタンインターフェース
📋切り替え方法：
- Cancel your Avast SecureLine VPN subscription before it renews
- Create a free Proton VPN account at proton.me
- Download the Proton VPN app on your devices and connect
What Our Review Didn’t Cover
This comparison focused on individual users and small households. We didn’t test enterprise-level features or evaluate how either VPN performs for blocking access in the Middle East or other heavily censored regions. Router-level setup, the Mac desktop app, and Android TV performance weren’t fully covered. If you’re a Linux user who needs port forwarding for torrenting servers, your experience may differ. We also didn’t run detailed speed tests or stress tests comparing other VPN services. Our observations are based on the May 2026 versions of both apps, and you should download the latest version before making a decision.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | プロトンVPN |
| 🔒 プライバシーとセキュリティ | プロトンVPN |
| 🌐 サーバーネットワーク | プロトンVPN |
| 📺 ストリーミング配信 | プロトンVPN |
| 👶 使いやすさ | アバストVPN |
| 🆓 無料トライアル | ネクタイ |
| 🔧 高度な機能 | プロトンVPN |
| 🏆総合優勝 | プロトンVPN |
🏆 優勝：ProtonVPN
ProtonVPNは7つのカテゴリーのうち5つで優勝しました。
最適な用途: Privacy-focused users, budget-conscious buyers, streaming, and anyone who wants a secure VPN with verified no-logs.
ProtonVPN and Avast VPN serve different users with different priorities.
Proton VPN is a full-featured VPN service with strong privacy credentials. Its Swiss base, open-source apps, and audited no-logs policy set it apart from most VPN providers.
Avast VPN works well as a basic VPN add-on for existing Avast antivirus users. Its 60-day free trial is generous. But the small server network and data privacy concerns are hard to ignore.
If you need a secure VPN for everyday browsing, streaming, or protecting your mobile device on public Wi-Fi, Proton VPN is the better choice.
ProtonVPNの比較をもっと見る
ProtonVPNが他の競合他社と比べてどうなのか、以下に示します。
ProtonVPN vs ノードVPN
ProtonVPNが優れている点： Free plan availability, open-source transparency, Swiss privacy jurisdiction
NordVPNが優れている点： Larger server network with 6,000+ servers, faster average speeds, dedicated IP addresses
ProtonVPN vs ExpressVPN
ProtonVPNが優れている点： Lower price point, permanent free tier, Secure Core multi-hop routing
ExpressVPNが優れている点： Faster connection speeds, better streaming reliability across more platforms, 24/7 live chat support
ProtonVPN vs SurfsharkVPN
ProtonVPNが優れている点： Audited no-logs with Swiss base, open-source code, Tor over VPN support
SurfsharkVPNが優れている点： Lower paid pricing starting at $1.99/month, unlimited simultaneous connections, CleanWeb ad blocker
ProtonVPN vs サイバーゴースト
ProtonVPNが優れている点： Better free plan, stronger privacy credentials, open-source apps
CyberGhostが勝利した点： Larger server fleet with 11,000+ servers, streaming-optimized servers by service, 45-day money-back guarantee
Avast VPNの比較をもっと見る
Avast VPNが他の競合製品と比べてどうなのか、以下に示します。
Avast VPNが優れている点： 60-day free trial period, simpler interface for beginners, Avast antivirus bundle option
NordVPNが優れている点： 6,000+ servers vs 700, audited no-logs policy, much better streaming support across all platforms
Avast VPN vs ExpressVPN
Avast VPNが優れている点： Lower yearly cost, longer free trial at 60 days, easier one-button setup
ExpressVPNが優れている点： Faster speeds worldwide, servers in 105 countries, 24/7 live chat customer support
Avast VPN vs マカフィー VPN
Avast VPNが優れている点： Longer 60-day trial vs McAfee’s 30-day, WireGuard protocol support, Smart VPN auto-connect
McAfee VPNが優れている点： Included free with McAfee Total Protection, larger server network, better overall privacy reputation
よくある質問
Proton VPNは安全に使用できますか？
Yes. Proton VPN passed independent audits verifying its strict no logs policy. The VPN company is based in Switzerland, a country with the world’s strongest privacy laws. All Proton apps use the OpenVPN protocol, WireGuard, and AES-256 encryption through an encrypted VPN tunnel. You can read our full Proton VPN review for more details.
Avast SecureLine VPNは安全に使用できますか？
The Avast SecureLine VPN review shows mixed results. The VPN uses AES-256 encryption and has a kill switch to protect against connection drops. However, the VPN company behind Avast was fined for selling browsing data. There is no independent audit confirming its privacy claims. Most VPNs from other VPN providers offer more security through verified no-logs policies. If you use Avast SecureLine VPN, your online activities are encrypted but the company’s track record raises concerns.
Proton VPNは本当に無料ですか？
Yes. Proton VPN offers a permanent free tier with no ads and unlimited bandwidth on one device. Among other free VPNs, the Proton free version stands out because many VPNs limit data or show ads. No payment information is needed. The free plan gives access to Proton VPN servers in a few countries. It’s a good VPN for basic online privacy without spending money.
Avastには無料のVPNサービスがありますか？
Avast doesn’t have a permanent free VPN. It does offer a 60 day free trial for the SecureLine VPN. During the 60 day trial, you get full access to all Avast SecureLine VPN servers and features including streaming optimized servers and torrenting servers. After the trial ends, you must install a paid subscription. The free Avast antivirus does not include VPN access. Among free trials in the VPN market, this is one of the longest available.
Which is better for streaming — ProtonVPN or Avast VPN?
Proton VPN is better for streaming. It works with Netflix, BBC iPlayer, and Amazon Prime Video consistently. Proton VPN’s dedicated servers help with blocking access restrictions on geo-locked content. Avast VPN can access some streaming services but has mixed results. The Avast VPN’s smaller server network gives fewer options for fast connection to streaming platforms.
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