⚡ Quick Verdict:
- 価格: PIA starts at $2.03/mo (2-year plan) vs Avast VPN at $49.99/first year (bundled with antivirus)
- 最適な用途: PIA for privacy-focused users who want unlimited connections, Avast VPN for casual users already using Avast antivirus
- 主な違い： PIA has 35,000 servers and a Deloitte-audited no-logs policy. Avast VPN has 700 servers and no independent 監査.
- Our pick: Private Internet Access for most users — better privacy, more servers, and lower long-term cost
Private Internet Access and Avast VPN target very different users.
PIA is a dedicated VPN with 35,000 servers worldwide.
Avast SecureLine VPN is an add-on to the Avast antivirus suite.
That difference shapes everything from pricing to privacy.
This comparison breaks down both tools so you can pick the right one.
Whether you want a top-tier VPN or just need to secure one device, this guide covers it.
概要
This Private Internet Access vs Avast VPN comparison covers pricing, features, and privacy protections.
We also look at server networks, speed, and ease of use.
Our sources include published specs, official documentation, and user reviews.
We reviewed speed tests, stress tests, and browsing data from multiple sources.
By the end, you’ll know which VPN service fits your needs.
プライベートインターネットアクセスとは何ですか?
Private Internet Access is a dedicated VPN provider with a large server network.
PIA VPN covers 91 countries with over 35,000 VPN servers.
お使いのすべてのデバイスで、無制限の同時接続が可能です。
PIAのアプリは完全にオープンソースなので、誰でもコードを検証できます。
プライベートインターネットアクセス
PIA offers 35,000 servers across 91 countries with unlimited connections. The no-logs policy has been verified by Deloitte through independent audits.
プライベートインターネットアクセス料金
PIA VPN has three pricing tiers. The long-term plan is where you save the most.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 2年4ヶ月 | 月額2.03ドル | 長期的な貯蓄 |
| 6ヶ月 | 月額7.50ドル | 中程度のコミットメント |
| 1ヶ月 | 月額11.99ドル | 短期テスト |
Pricing verified May 2026.
無料トライアル: 無料トライアルはありませんが、30日間の返金保証があります。
返金保証: 30日以内であれば、理由を問わず全額返金いたします。
📌 注記： PIA does not raise prices at renewal. What you pay at signup is what you pay going forward. All plans include every feature with no paywalled extras.
⚠️ 警告： The monthly plan at $11.99 is above the industry average. If you plan to use PIA long-term, the 2-year deal at $2.03/month is a much better value.
プライベートインターネットアクセスの主な利点
Here’s what makes PIA worth considering:
- 大規模なサーバーネットワーク: PIA’s servers span 91 countries with 35,000 nodes. US users get coverage in all 50 states.
- 無制限の接続: Connect every device you own at the same time. Most VPN providers cap this at 5 or 10.
- 監査済みノーログポリシー: Deloitte has independently verified that PIA does not store browsing history, DNS queries, or IP addresses.
- オープンソースアプリ： All PIA apps are open-source. Anyone can review the source code for hidden trackers or backdoors.
- 内蔵広告ブロッカー： The MACE feature blocks ads and trackers at the DNS level. No extra browser extensions needed.
- 高度な分割トンネル工法： Route specific apps or IP addresses outside the VPN tunnel. This is helpful for online gaming and banking sites.
- マルチホップ接続： Route your internet traffic through two VPN servers for extra anonymity.
What Our Team Noticed
私たちの 作家 signed up for Private Internet Access and spent several days exploring the platform. Here’s what stood out:
プライベートインターネットアクセスのメリットとデメリット
✅ メリット
- 35,000 servers across 91 countries with US coverage in all 50 states
- すべてのデバイスで無制限の同時接続が可能
- Deloitte-audited strict no-logs policy with quarterly transparency reports
- コードの透明性を完全に確保したオープンソースアプリ
- 更新時の価格改定はありません
❌ デメリット
- Average download speed loss of 49% on some servers
- Inconsistent streaming unblocking with some services
- 月額11.99ドルのプランは業界平均を上回っている。
Avast VPN とは何ですか?
Avast SecureLine VPN is a virtual private network from the Avast antivirus company.
It focuses on simple, beginner-friendly online privacy for Avast products users.
The VPN app is available on Windows, macOS, Android, iOS、Android TV など。
Avast VPN connects up to 10 devices at the same time.
アバストVPN
Avast SecureLine VPN offers a 60-day free trial with full access. It supports 10 devices and includes Smart VPN mode for automatic connections.
アバストVPNの価格
Avast bundles its VPN with antivirus products. Here are the available plans.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料アンチウイルス | 無料 | 基本的なウイルス対策のみ |
| プレミアムセキュリティ | 初年度49.99ドル | Antivirus with added features |
| 究極の | 初年度49.99ドル | Full suite including VPN |
Pricing verified May 2026.
無料トライアル: Yes, a 60-day free trial with full VPN access. Payment information is required upfront.
返金保証: 30-day refund policy, but the process involves multiple steps.
📌 注記： The 60-day free trial is longer than what most VPN providers offer. You get full access to all servers and features during the trial period.
⚠️ 警告： Avast SecureLine VPN renewal prices are much higher than the introductory rate. The service auto-renews at full price unless you cancel before the billing date.
Avast VPNの主な利点
Here’s what makes Avast SecureLine VPN worth considering:
- お得な無料トライアル： The 60-day trial gives you full access to every feature. You can cancel anytime before it ends.
- スマートVPNモード: Set rules for when the VPN should automatically connect. It works based on the network you join.
- シンプルなインターフェース: The app is easy to navigate. Even first-time VPN users can connect in seconds.
- 複数のプラットフォーム: Supports Windows, macOS, Android, iOS, and Android TV from a single subscription.
- ストリーミングアクセス: Works with Netflix, Disney+, and Amazon Prime Video on streaming optimized servers.
- 公共Wi-Fiの保護： Encrypts your internet connection on unsecured networks to block snooping.
What Our Team Noticed
Our writer installed Avast SecureLine VPN and explored the app across multiple platforms. Here’s what stood out:
Avast VPNのメリットとデメリット
✅ メリット
- 60日間無料トライアルで全機能をご利用いただけます
- Smart VPN mode auto-connects based on network rules
- Simple and beginner-friendly app design
- Available on Windows, macOS, Android, iOS, and Android TV
❌ デメリット
- Only 700 servers across 34 countries
- No independent audit to verify no-logs claims
- Parent company fined $16.5M by the FTC for selling user data
- Renewal prices more than double the introductory rate
機能比較
Now let’s compare Private Internet Access vs Avast VPN across 9 key categories. Each section shows how both VPN services handle a specific feature.
| 特徴 | プライベートインターネットアクセス | アバストVPN |
|---|---|---|
| 開始価格 | 月額2.03ドル | 初年度49.99ドル |
| 無料トライアル | ❌ | ✅ 60日間 |
| サーバー数 | 35,000+ | ~700 |
| 国々 | 91 | 34 |
| 同時接続 | 無制限 | 10 |
| ログなし監査 | ✅ デロイト | ❌ |
| オープンソースアプリ | ✅ | ❌ |
| スプリットトンネリング | ✅ | ✅ |
| キルスイッチ | ✅（通常版＋上級版） | ✅ |
| 最適な用途 | プライバシー重視のパワーユーザー | Casual browsing and Avast users |
1. サーバーネットワーク
プライベートインターネットアクセス: PIA has over 35,000 VPN servers spread across 91 countries. That includes coverage in all 50 US states, which is rare among VPN providers. More server locations mean less crowding and better connection speeds during peak hours.
アバストVPN: Avast SecureLine VPN has around 700 servers in 34 countries. That’s a small network compared to most VPN services. Fewer Avast SecureLine VPN servers can lead to slower download speeds during busy times, especially on distant server locations.
2. プライバシーとセキュリティ
プライベートインターネットアクセス: PIA has a strict no-logs policy verified by Deloitte through independent audits. The VPN does not store browsing history, DNS queries, connection data, or your real IP address. PIA also publishes quarterly transparency reports showing how it handles legal requests.
アバストVPN: Avast claims a no-logs policy but has not completed any independent audit to back it up. The service records timestamps and data volumes for up to 35 days. Avast’s parent company was fined $16.5 million by the FTC in 2024 for selling user data through a subsidiary called Jumpshot.
⚠️ 警告： If user privacy is your top priority, the lack of independent audits and the FTC fine are major concerns for Avast SecureLine VPN.
3. Encryption and VPN Protocols
プライベートインターネットアクセス: PIA offers AES-256 encryption over the OpenVPN protocol and ChaCha20 using WireGuard. Users can customize the encryption level and choose between protocols based on their needs. This flexibility is helpful for power users who want to balance speed and security.
アバストVPN: Avast SecureLine supports OpenVPN, WireGuard, and its own Mimic protocol. Mimic is designed to disguise VPN traffic as regular browsing data. However, there are fewer customization options compared to PIA’s approach.
4. 速度とパフォーマンス
プライベートインターネットアクセス: PIA’s average download speed loss is around 49%, which varies by server location and protocol. Speeds are generally fine for streaming services and web browsing. Performance on Windows OpenVPNを使用する tends to be better than WireGuard in some tests.
アバストVPN: Avast delivers decent connection speeds on nearby servers. However, speed drops are significant when connecting to distant locations. The smaller server network means fewer options for avoiding congested nodes.
5. ストリーミングとブロック解除
プライベートインターネットアクセス: PIA has streaming optimized servers that can access Netflix, Disney+, and Amazon Prime Video. However, unblocking streaming content is not always consistent. Some streaming services like BBC iPlayer may not work every time.
アバストVPN: Avast can access Netflix, Disney+, and Amazon Prime Video through its streaming optimized servers. But results with BBC iPlayer and Hulu have been mixed according to user reports. The limited number of servers makes it harder to find a working connection.
6. キルスイッチと漏洩防止
プライベートインターネットアクセス: PIA provides two types of kill switches. The regular kill switch activates when the VPN connection drops. The advanced kill switch blocks all internet traffic unless PIA is connected. Both help prevent DNS leaks and keep your actual IP address hidden.
アバストVPN: Avast includes a kill switch that disconnects your internet connection if the VPN drops. It also has DNS leak protection and WebRTC leak protection built in. These features are standard but fewer in number compared to PIA’s dual kill switch setup.
7. 分割トンネル工法
プライベートインターネットアクセス: PIA’s split tunneling lets you exclude specific apps and IP addresses from the VPN tunnel. This means you can route banking sites through your regular connection while keeping browser traffic encrypted. PIA also supports オートメーション rules that trigger connections based on your network.
アバストVPN: Avast SecureLine VPN offers basic split tunneling on supported platforms. You can choose which apps go through the VPN and which use your direct internet connection. However, it lacks the IP address exclusion and オートメーション features found in PIA.
8. デバイスのサポートと接続
プライベートインターネットアクセス: PIA allows unlimited simultaneous connections. Install it on your phone, laptop, tablet, router, and every other device you own. PIA also offers a dedicated command line app for Linux and browser extensions for Chrome and Firefox.
アバストVPN: Avast allows 10 devices on one subscription. It works on Windows, macOS, Android, iOS, and Android TV. There are no browser extensions or router support, which limits coverage for smart home devices.
9. 価格とコスト
| プランの種類 | プライベートインターネットアクセス | アバストVPN |
|---|---|---|
| 毎月 | 月額11.99ドル | 月額プランはありません |
| 6-Month / 1-Year | $7.50/month (6-mo) | 初年度49.99ドル |
| 長期 | $2.03/month (2-yr) | 初年度料金：49.99ドル（アルティメットプラン） |
| 無料トライアル | ❌ | ✅ 60日間 |
| 返金保証 | 30日間 | 30日間 |
プライベートインターネットアクセス: PIA is one of the cheapest VPN options for long-term plans at $2.03/month. The price stays the same at renewal, which is rare. The monthly rate of $11.99 is slightly above average, but the long-term deals make PIA an affordable VPN choice.
アバストVPN: Avast’s first-year pricing looks competitive at $49.99. But renewal prices jump significantly — often doubling the original cost. There is no monthly plan available, which limits flexibility for users who don’t want a long commitment.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| 長期的に見て最低価格 | ぴあ | $2.03/mo with no renewal hike |
| Privacy with audited proof | ぴあ | デロイトが検証したログなしポリシー |
| 料金を支払う前に無料トライアルをご利用いただけます。 | アバストVPN | 60日間フルアクセス無料トライアル |
| 無制限のデバイス接続 | ぴあ | 同時接続デバイス数に制限なし |
| 初心者向けのVPNアプリ | アバストVPN | すっきりとしたインターフェース、簡単なセットアップ |
| 最大のサーバーネットワーク | ぴあ | 91か国に35,000台のサーバー |
💰 あなたの予算
PIA costs $2.03/month on the 2-year plan with no price hikes at renewal. Avast charges $49.99 for the first year, but renewal prices can more than double.
🔌 あなたの技術スタック
PIA works on more devices and offers browser extensions plus router support. Avast VPN is limited to desktop and mobile devices with no browser add-ons.
🔒 あなたのプライバシーのニーズ
If keeping your data private is the main goal, PIA’s audited no-logs policy is hard to beat. Avast’s FTC fine and lack of audits raise trust concerns.
🎓 あなたの経験レベル
Avast VPN is simpler and designed for beginners who want one-click protection. PIA offers more settings and customization for VPN users who want control.
🆓 無料トライアルとデモ
Avast wins here with a 60-day free trial that gives full access. PIA has no free trial but offers a 30-day money-back guarantee instead.
🛟 サポートオプション
PIA offers 24/7 live chat and email support with a detailed knowledge base. Avast provides phone and form-based support, but some users report slow response times.
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？
🔄 Private Internet AccessからAvast VPNに切り替えますか？
✅ 得られるもの：
- 60-day free trial to test the service before paying
- Smart VPN mode that auto-connects based on network rules
- Bundled antivirus protection with the Ultimate plan
❌ 失うもの：
- Unlimited simultaneous connections (down to 10 devices)
- Deloitte-audited no-logs policy and open-source code
- 35,000 servers in 91 countries (down to 700 in 34)
📋切り替え方法：
- アカウントダッシュボードからPIAのサブスクリプションをキャンセルしてください。
- avast.comからAvast SecureLine VPNをダウンロードしてインストールしてください。
- Start the 60-day free trial and test the service
🔄 Avast VPNからPrivate Internet Accessに切り替えますか？
✅ 得られるもの：
- Unlimited device connections with no cap
- Verified no-logs policy with Deloitte audit and transparency reports
- 50x more servers across 91 countries
❌ 失うもの：
- 60-day free trial (PIA only offers a 30-day refund)
- スマートVPN自動接続モード
- Bundled antivirus integration with Avast products
📋切り替え方法：
- Cancel your Avast subscription through avast.com or customer support
- privateinternetaccess.comでPIAに登録してください。
- Download the PIA app and connect to your preferred server
What Our Review Didn’t Cover
This comparison focused on individual users and small households. We tested Private Internet Access and tested PIA across core features, but didn’t evaluate enterprise-level setups, custom VPN router configurations, or specialized use cases like torrenting performance across every server. Speed tests vary by location and time of day, so your results may differ. If you need a VPN specifically for a 仕事 network, your priorities will look different from what we’ve covered here.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | プライベートインターネットアクセス |
| 🔒 プライバシーとセキュリティ | プライベートインターネットアクセス |
| 🌐 サーバーネットワーク | プライベートインターネットアクセス |
| ⚡ スピード | ネクタイ |
| 👶 使いやすさ | アバストVPN |
| 🔌 デバイスサポート | プライベートインターネットアクセス |
| 🆓 無料トライアル | アバストVPN |
| 🏆総合優勝 | プライベートインターネットアクセス |
🏆 受賞：プライベートインターネットアクセス
プライベート・インターネット・アクセスは、7部門中5部門で受賞した。
最適な用途: Privacy-focused users, families with many devices, long-term VPN subscribers
Private Internet Access and Avast VPN serve different types of users. PIA is a dedicated VPN service built for privacy and flexibility. Avast SecureLine VPN is a simple add-on for users already using Avast antivirus.
Avast VPN works well for casual browsing and public Wi-Fi protection. The 60-day trial is genuinely useful for first-time VPN users who want to test before buying.
But if you want a verified no-logs policy, unlimited connections, and a massive server network, PIA is the stronger pick. It may not be the flashiest option, but it checks every box you’d expect from a top-tier VPN. The long-term pricing at $2.03/month with no renewal increases makes it a clear value winner too.
プライベートインターネットアクセスの比較
Here’s how Private Internet Access stacks up against other VPN providers:
プライベートインターネットアクセス vs ノードVPN
PIAが勝利した点： Lower long-term pricing ($2.03 vs ~$3.39/mo), unlimited connections, open-source apps
NordVPNが優れている点： Faster average speeds, larger country coverage, specialty servers for double VPN and Onion over VPN
プライベートインターネットアクセス vs ExpressVPN
PIAが勝利した点： Much cheaper pricing, unlimited device connections, open-source code transparency
ExpressVPNが優れている点： Faster download speeds, better streaming reliability, wider router compatibility
プライベートインターネットアクセス vs プロトンVPN
PIAが勝利した点： More servers (35,000 vs ~6,500), lower paid pricing, US coverage in all 50 states
Proton VPNが優れている点： Free plan with no data cap, Swiss jurisdiction, bundled privacy suite with email and storage
プライベートインターネットアクセス vs SurfsharkVPN
PIAが勝利した点： Larger server count, Deloitte-audited no-logs, longer track record with transparency reports
SurfsharkVPNが優れている点： Better streaming unblocking, CleanWeb ad blocker, GPS spoofing on Android
Avast VPNの比較をもっと見る
Here’s how Avast VPN stacks up against other VPN providers:
Avast VPNが優れている点： 60-day free trial, bundled antivirus option, simpler interface for beginners
NordVPNが優れている点： 6,000+ servers, audited no-logs, faster speeds, specialty server types
Avast VPN vs サイバーゴースト
Avast VPNが優れている点： Longer free trial period, Smart VPN auto-connect rules, works alongside Avast antivirus products
CyberGhostが勝利した点： 11,000+ servers, dedicated streaming and torrenting profiles, often ranked among the best VPNs for value
Avast VPN vs マカフィー VPN
Avast VPNが優れている点： 60-day trial vs no standalone free trial, dedicated VPN app, more server locations
McAfee VPNが優れている点： Included free with McAfee antivirus plans, wider device support, automatic Wi-Fi protection
よくある質問
プライベートインターネットアクセスは安全ですか？
Yes. PIA uses AES-256 encryption and has a strict no-logs policy verified by Deloitte. The apps are open-source, so the code can be reviewed by anyone.
Avast VPNは本当に効果があるのか？
Avast SecureLine VPN works for basic browsing and streaming. It encrypts your internet connection and hides your IP address. However, it has a smaller server network than most dedicated VPN services.
PIA VPNの月額料金はいくらですか？
The monthly plan costs $11.99. The 6-month plan is $7.50/month. The best deal is the 2-year plan at $2.03/month, and prices don’t increase at renewal.
Avast SecureLine VPNは安全に使用できますか？
The VPN itself uses standard encryption. However, the service lacks independent audits and its parent company was fined for past privacy violations. Consider this before trusting it with sensitive data.
PIA VPNは無料で利用できますか？
PIA does not have a free plan or free trial. It offers a 30-day money-back guarantee instead. Avast SecureLine VPN has a 60-day free trial if you want to test a VPN without paying first.
How many servers does Private Internet Access have?
PIA covers 91 countries with over 35,000 servers, including virtual servers in some regions. PIA supports connections from the Middle East, Asia, and other areas where many VPNs struggle. The Private Internet Access VPN also includes DNS servers to prevent DNS requests from leaking.
Does Avast SecureLine VPN have torrenting servers?
Avast previously offered torrenting servers, but removed them in late 2025. If you need a good VPN for torrenting, PIA is a better pick since it offers unlimited bandwidth and port forwarding on all servers. For more security, PIA also blocks ISP throttling across its network.
Is PIA a quality VPN for everyday use?
PIA is a quality VPN with a private internet access review rating of 4.2/5. PIA supports Windows, macOS, Linux, Android, iOS, and even has a command line app. You can download PIA from the Apple App Store and Google Play. The PIA app also works as a Windows app and Android app on mobile devices.
Should I use Avast SecureLine VPN on public networks?
You can use Avast SecureLine VPN on any public network to encrypt your data. The Smart VPN feature lets the VPN automatically connect when it detects a public Wi-Fi hotspot. The Avast SecureLine VPN review scores show it handles basic online activities well, though it lacks advanced security features found in other VPN apps.
Are there Private Internet Access deals available?
Private Internet Access makes its best deals available on the 2-year plan. At $2.03/month, it is a cheap VPN compared to most VPN providers. The service includes incoming connections via port forwarding, which is useful for online gaming and hosting. Unlike many VPNs, PIA offers a fast connection with no speed caps on any plan. Check the current Private Internet Access deals on their website for seasonal discounts.
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