⚡ 簡単な評価:
- 価格: 1Password starts at $2.99/month. LastPass Premium starts at $3.00/mo.
- 最適な用途: 1Password for families and teams wanting multiple vaults. LastPass for anyone who needs a free パスワードマネージャー.
- 主な違い： 1Password has never been breached. LastPass had two データ breaches in 2022.
- 私たちのおすすめ： 1Password for most personal users, because its security record and vault organization are stronger.
One of these two tools has never been breached.
The other lost customer data twice in 2022.
That single fact shapes most of this comparison.
But price, free plans, and daily use still matter.
Here is how 1Password and LastPass really compare in 2026.
概要
This 1Password vs LastPass comparison covers pricing, security features, and daily password management.
We also look at how each パスワードマネージャー handles teams and family members.
情報源としては、公開されている仕様書、公式文書、ユーザーレビューなどが含まれます。
弊社のライター陣も、両方のアプリを実際に操作してみました。
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。
1Passwordとは何ですか？
1Password is a password manager built by アジャイル Bits in Toronto, Canada, in 2006.
It stores your logins, secure notes, and card details inside an encrypted vault.
You unlock everything with one master password and a 34-character secret key.
That means one password to remember, and it can manage passwords for every site you use.
The apps run on Windows, macOS, Linux, アンドロイド、そしてiOS。
Most people pick it for vault organization, 旅行 Mode, and its clean security record.
Here is a full walkthrough of how the entire app works.
🏆 Winner: 1Password
Zero-knowledge architecture with AES 256-bit encryption. Every plan includes a 14 day free trial. No credit card charge until it ends.
1Passwordの料金
Here is what 1Password costs in 2026. Prices below are billed yearly.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 個人 | 月額2.99ドル | Solo users on multiple デバイス |
| 家族 | 月額4.99ドル | Up to 5 family members |
| チームスターターパック | 月額19.95ドル | Small businesses up to 10 users |
| 仕事 | 月額7.99ドル | Mid-to-large teams, per user |
価格は2026年7月に確定しました。
無料トライアル: 14 days on all personal plans. There is no permanent free version.
返金保証: Refunds are handled by email support on a case-by-case basis.
📌 注記： The Families plan covers 5 people and lets you add more users for a small extra cost. That makes the family plan cheaper per person than four Individual seats. Every personal tier unlocks all the features, so no advanced features sit behind a higher price.
⚠️ 警告： There is no free tier at all. If you stop paying, you keep read-only access to your data but lose the ability to save passwords normally.
Key Benefits of 1Password
Here is what makes 1Password worth the subscription:
- Secret Key protection: A unique 34-character secret key is created at setup and stored on your device. It is combined with your master password for security purposes.
- ものみの塔特集： It flags weak passwords, reused passwords, and compromised passwords. You also get alerts about known breaches.
- Multiple vaults: Split work and home items into separate vaults. Shared vaults let you share passwords with family members or a team.
- Travel mode: Hide chosen vaults before crossing a border. Sensitive information simply disappears from the device.
- パスワード ジェネレータ: It builds secure passwords and unique passwords for every new account. There is a username generator too.
- Passkey support: Passkeys are a fairly new feature for this category, and 1Password works with the FIDO Alliance on passwordless login technology. You can store and use passkeys next to normal logins.
- プライバシーカード： Virtual payment cards mask your real debit card during online shopping.
私たちのチームが気づいたこと
私たちの 作家 set up a fresh 1Password account and moved a full vault across. Here is what stood out during that hands-on time:
1Password Pros & Cons
✅ メリット
- Never breached, according to the company
- 34-character Secret Key adds a second layer beyond your master password
- Travel Mode hides selected vaults at borders
- Families plan covers 5 users and beats most rival family plans
- Watchtower monitors password health and breach exposure
LastPassとは何ですか？
LastPass is a popular password manager that runs on a freemium model.
Your LastPass vault holds logins, secure notes, and encrypted passwords behind one master password.
The LastPass password manager fills login credentials for you as you ブラウズ.
It works as a secure password manager that keeps all your passwords in one password vault.
The LastPass free version gives you unlimited password storage on a single device type.
Windows、macOS、Linux、iOS、Androidで動作します。
Two data breaches in 2022 still shape how people judge LastPass security today.
This walkthrough shows the LastPass vault and dashboard in action.
Runner Up: LastPass
The free tier stores unlimited passwords on one device type. Premium adds 1GB encrypted file storage and emergency access.
LastPassの料金
Here is what LastPass costs in 2026, plus who each tier suits.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| プレミアム | 月額3.00ドル | Solo users needing all devices |
| 家族 | 月額4.00ドル | Up to six people |
| チーム | 月額4.25ドル | LastPass Teams, up to 50 users |
| 仕事 | 月額7.00ドル | LastPass Business with SSO |
| ビジネスマックス | 月額9.00ドル | Advanced access management |
価格は2026年7月に確定しました。
無料トライアル: 30 days on Premium and LastPass Families. Teams and Business get 14 days.
返金保証: Cancel inside the trial window and you are not charged.
📌 注記： The free tier keeps unlimited passwords but limits you to one device type. Premium lifts that and adds 1GB of encrypted file storage against the free tier’s 50MB.
⚠️ Pricing conflict: Our data sheet lists Teams at $4.25/mo., while published plan pages have shown $4.00 per user per month. Business is listed at $7.00/mo. in both places. Check the current checkout page before you buy.
Key Benefits of LastPass
Here are the LastPass features that keep users on the platform:
- Real free tier: LastPass free stores unlimited passwords at no cost. That makes it a rare free password manager with no item cap.
- LastPass Security Dashboard: The security dashboard scores your password security and flags weak passwords across your account.
- ダークウェブの監視： LastPass alerts you if your email shows up in a dark web dump after a security incident.
- 緊急アクセス: A trusted contact can reach your vault if something happens to you.
- Multifactor authentication: LastPass Authenticator and other multi factor authentication options guard the login step.
- Password sharing: Share passwords one-to-one on free, or one-to-many on Premium.
- One-time passwords: Generate an OTP to log in safely from a public computer.
私たちのチームが気づいたこと
Our writer ran an account the way most LastPass users do, on both a laptop and a mobile device. Here is what came out of that time:
LastPass Pros & Cons
✅ メリット
- Free plan with unlimited password storage
- Premium costs $3.00/mo. with 1GB encrypted file storage
- Dark web monitoring included on paid tiers
- 30-day trial on Premium and Families
❌ デメリット
- Two data breaches in 2022 exposed customer data
- Free version limits users to one device type
- Support leans on self-service FAQs and community help
- Free tier lacks YubiKey and fingerprint authentication
機能比較
Both tools do the same core job. The differences show up in security design, sharing, and what you get for free.
We compare ten areas below, from password generation to business plans.
| 特徴 | 1パスワード | ラストパス |
|---|---|---|
| 開始価格 | 月額2.99ドル | 月額3.00ドル |
| 無料版 | ❌ | ✅ (one device type) |
| Known Data Breach | ❌ なし | ✅ Two in 2022 |
| Secret Key | ✅ | ❌ |
| 旅行モード | ✅ | ❌ |
| ダークウェブモニタリング | ✅ ウォッチタワー | ✅ セキュリティダッシュボード |
| パスキーのサポート | ✅ | ✅ |
| Multiple Vaults | ✅ | Folders only |
| ライブチャットサポート | ❌ Email support | ❌ Self-service first |
| 最適な用途 | Families, teams, security-first users | Free users on a budget |
1. パスワード管理
1パスワード: Everything sits inside a secure vault you unlock with one master password. Multiple vaults keep work and personal items apart, which is real vault organization rather than folders. You can import from a different password manager using a CSV file.
ラストパス: Password management here is folder-based inside a single LastPass vault. Stored passwords, secure notes, and addresses all live together. It handles unlimited passwords even on the free tier, which other password managers rarely offer for free.
2. パスワードジェネレーター
1パスワード: The password generator makes strong passwords and unique passwords for every signup. A username generator sits beside it, which helps when you want throwaway identities for guest accounts.
ラストパス: Password generation is built into the LastPass browser extension and the web vault. You set length and character rules, then the new password is saved automatically. It is enough for good password hygiene on everyday sites.
3. 自動入力とブラウザ拡張機能
1パスワード: Browser extensions save passwords as you sign up and fill them back in later. Card details for online shopping get automatically filled too, so you rarely manually enter anything. A Netflix login or a bank login behaves the same way.
ラストパス: The LastPass extension handles save and autofill across Chrome, Firefox, Edge, and Safari. Support for Internet Explorer has been retired along with the browser itself. Some reviews flag autofill glitches when editing saved items.
⚠️ 警告： Autofill only protects you if the extension is the thing typing. If you manually enter credentials on a lookalike page, no password manager can save you.
4. Encryption and Account Security
1パスワード: Data is protected with AES 256-bit encryption under a zero-knowledge policy. The 34-character Secret Key is the real differentiator, since a stolen master password alone is not enough. You can enable two factor authentication for a verification code at login.
ラストパス: It uses the same encryption standard, AES-256, with zero-knowledge design. There is no secret key layer, so a complex master password carries more weight. LastPass now enforces a 12-character minimum and supports a hardware security key on paid tiers.
⚠️ 警告： In November 2022, attackers reached LastPass cloud backups holding both encrypted and unencrypted customer data. An August 2022 breach had already exposed source code. Encrypted data stayed locked, but weak master passwords were at risk.
5. Password Health Monitoring
1パスワード: Watchtower scans for reused passwords, weak entries, and compromised passwords tied to known breaches. It nudges you toward better security online without extra setup.
ラストパス: The LastPass Security Dashboard gives a numeric score plus dark web monitoring for your email addresses. Password reminders push you to rotate anything old or duplicated.
6. Sharing and Family Plans
1パスワード: Shared vaults let a household or team pool logins in one place. You can also share single items through secure links that expire. The family plan covers five people and adding more costs little.
ラストパス: Password sharing runs one-to-one on free and one-to-many on Premium. LastPass Families supports six people with a shared dashboard for family members.
7. Business and Team Features
1パスワード: The business plan runs $7.99 per user, with a Teams Starter Pack for up to 10 people. Enterprise adds tailored controls for company resources and secure applications, and admins can manage access per team.
ラストパス: LastPass Teams covers up to 50 seats with user management built in. LastPass Business adds single sign-on and stronger multifactor authentication.
8. Login Options and Account Recovery
1パスワード: Setup on a second device uses an Emergency Kit PDF or a QR code scan. Biometric logins unlock the desktop app and mobile apps. Account recovery leans on that kit, so store it offline.
ラストパス: Passwordless login lets you open the LastPass vault with biometrics instead of typing. Emergency access hands a trusted contact a way in. Passkey rollout continued through 早い 2026.
9. Platforms and Device Access
1パスワード: There is a desktop app for every major platform, plus a command line tool for developers. You can easily access your account on multiple devices with no hard device limit across operating systems.
ラストパス: The LastPass mobile app supports biometric unlock and is well reviewed. Paid tiers sync across various devices, while free users pick either computers or phones. LastPass servers handle sync in both cases.
10. 価格設定とコスト
Here are both price lists side by side.
| ティア | 1パスワード | ラストパス |
|---|---|---|
| 無料 | ❌ 14日間限定の無料トライアル | ✅ One device type |
| 個人的 | 月額2.99ドル | 月額3.00ドル |
| 家族 | $4.99/month (5 users) | $4.00/mo. (6 users) |
| チーム | $19.95/month (10 users) | 月額4.25ドル |
| 仕事 | 月額7.99ドル | 月額7.00ドル |
| トップティア | エンタープライズ（カスタム） | Business MAX $9.00/mo. |
1パスワード: Personal users pay a cent less per month than LastPass Premium. The gap widens for households, since $4.99 covers five people with real shared vaults. There is no free version, so the 14 day free trial is your only test window.
ラストパス: The free plan is the headline. LastPass Families undercuts 1Password by a dollar and adds a sixth seat. Per-seat business pricing also runs slightly cheaper across the range.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| A free password manager | ラストパス | パスワードは無制限、無料 |
| The cleanest breach record | 1パスワード | Never breached to date |
| Cover for a whole household | 1パスワード | Shared vaults for five |
| Cheapest family plan | ラストパス | $4.00/mo. for six users |
| Border privacy | 1パスワード | Travel Mode hides vaults |
| 中小企業 under 50 seats | ラストパス | Teams pricing per user |
💰 あなたの予算
If you will not pay anything, LastPass free is the only option here. Paid personal tiers are almost identical at roughly $3 a month.
🔌お使いのデバイス
1Password syncs across multiple devices on every plan. The LastPass free version limits users to phones or computers, not both.
🛡️ Your Risk Tolerance
Two security breaches sit in the LastPass past, and that history bothers many people. If it bothers you, the choice is already made.
🎓 あなたの経験レベル
Beginners often find LastPass simpler on day one. 1Password asks you to store an Emergency Kit, which takes an extra step.
🆓 無料トライアルとデモ
You can test LastPass for 30 days on Premium before paying anything. 1Password gives you 14 days on every personal tier.
🛟 サポートオプション
Neither one offers phone support. 1Password routes you to email, while LastPass leans on FAQs and community threads first.
切り替えガイド
Already using one of these? Both tools import from most password managers, so the move is mostly admin work.
🔄 Switching from 1Password to LastPass?
✅ 得られるもの：
- A permanent free tier with unlimited password storage
- A cheaper family plan covering six people
- Emergency access for a trusted contact
❌ 失うもの：
- Travel Mode and the Secret Key layer
- Multiple vaults instead of plain folders
- An unbroken record with no data breach
📋切り替え方法：
- Export your 1Password items to a CSV file
- Create a LastPass account and set a complex master password
- Import the file, then delete it and enable multifactor authentication
🔄 Switching from LastPass to 1Password?
✅ 得られるもの：
- The 34-character Secret Key on top of your master password
- Travel Mode and multiple vaults for real separation
- A provider with no breach on record
❌ 失うもの：
- The free tier, since every plan is paid
- A sixth family seat
- The security dashboard scoring you already know
📋切り替え方法：
- Export your LastPass vault from the browser extension
- Start the 14-day trial and save your Emergency Kit offline
- Import, sort items into multiple vaults, then run Watchtower
私たちのレビューで取り上げられなかったこと
This comparison focused on personal users, families, and small teams. We did not audit enterprise deployments, custom access management rollouts, or bundled extras like a virtual private network. Our notes reflect the July 2026 versions of both apps, and certain features may have shifted since. If you manage hundreds of seats, your priorities will differ from what we covered here.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | ラストパス |
| 🔐 Security Track Record | 1パスワード |
| 🗂️ Vault Organization | 1パスワード |
| 👨👩👧 Family Plans | 1パスワード |
| 👶 使いやすさ | ラストパス |
| 🧭 Unique Features | 1パスワード |
| 🏢 Business Value | ラストパス |
| 🏆総合優勝 | 1パスワード |
🏆 WINNER: 1PASSWORD
1Password wins 4 out of 7 categories.
最適な用途: families sharing logins, frequent travelers, and anyone who wants secure password management with no breach history.
These two sit at different ends of the password manager market. 1Password sells security depth. LastPass sells access at zero cost.
LastPass is still a capable tool, and its free tier remains the reason it stays on lists of top password managers. If money is the constraint, it earns the pick.
For everyone else, 1Password is the best password manager of the two. It is the favorite password manager on our team, and it holds up well against many password managers we have reviewed.
The Secret Key, Travel Mode, and clean record justify the small monthly cost.
More of 1Password Compared
Here is how 1Password lines up against other rivals:
1Password vs ビットワーデン
1Passwordが優れている点： Travel Mode, polished desktop version, Secret Key layer
Bitwardenが勝利した点： open-source code, a free tier with unlimited devices, lower paid pricing
1Passwordが優れている点： family plan value, vault separation, command line tooling
NordPassが優れている点： lower entry price, email masking, a usable free tier
1Passwordが優れている点： price per household, Travel Mode, breach-free history
Dashlaneが勝利した点： a friendlier interface, bundled VPN, guided password changes
1Password vs キーパーセキュリティ
1Passwordが優れている点： simpler pricing, stronger family bundle, faster setup
キーパーの勝利条件： curated enterprise bundles, granular admin controls, add-on modules
More of LastPass Compared
これらは LastPassの代替 people weigh most often.
LastPassが優れている点： polished onboarding, dark web alerts, wider consumer support articles
Bitwardenが勝利した点： no breach history, free syncing across every device, open-source 監査
LastPassが優れている点： unlimited free storage, emergency access, one-time passwords
NordPassが優れている点： privacy tooling, password health reports, a cleaner incident record
LastPassが優れている点： cheaper Premium, six-seat family tier, free plan availability
Dashlaneが勝利した点： no breach history, tidier interface, stronger autofill accuracy
LastPassが優れている点： lower small-team pricing, free consumer tier, faster rollout for tiny teams
キーパーの勝利条件： enterprise pricing flexibility, dedicated compliance 報告, cleaner breach record
よくある質問
1PasswordとLastPass、どちらが良いですか？
1Password is better for most people thanks to its Secret Key and clean breach record. LastPass wins only if you need a free plan.
LastPassはもはや安全ではないのですか？
It still uses AES-256 and zero-knowledge encryption. The 2022 incidents damaged trust, so a long, unique master password matters more than ever here.
1Passwordはまだ無料ですか？
No. There is no free tier at all. Every personal plan includes a 14 day free trial, then billing starts at $2.99 monthly.
LastPassの月額料金はいくらですか？
Premium runs $3.00/mo. and Families is $4.00/mo. Business tiers start at $7.00/mo. per user, with Business MAX at $9.00/mo.
1Passwordのデメリットは何ですか？
No free version, email-only support, and a higher price than NordPass. Some people also find the interface less intuitive than Dashlane’s.
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