Sinew Software Systems review

Updated September 28, 2026 · ShieldCue Editorial Team · Facts checked September 26, 2026

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Our verdict

Sinew Software Systems bundles password storage with verification codes and passkeys in a single vault, which suits businesses and families who prefer a single tool. A free plan is available, the paid tier costs $1.99 a month, and a money back window of 30 days softens the switch.

Key facts

Best for
A business password manager with built-in verification codes at a low monthly price.
Monthly price
$1.99 (Source, checked September 26, 2026)
Long-term plan price
$1.99 (Source, checked September 26, 2026)
Money-back period
30 days (Source, checked September 26, 2026)
Jurisdiction
US (Source, checked September 26, 2026)
Features
TOTP (Source, checked September 26, 2026)
Platforms
Windows, MacOS, Linux, iOS, Android, Chrome, Edge, Firefox, Safari, Brave, Vivaldi, Opera (Source, checked September 26, 2026)
Owner
Enpass Technologies Inc (Source, checked September 26, 2026)
Longest plan (months)
36 months (Source, checked September 26, 2026)
Legal entity
Enpass Technologies Inc (Source, checked September 26, 2026)
Headquarters
United States (Source, checked September 26, 2026)
Support channels
Email, Help-centre, Community (Source, checked September 26, 2026)
Features
No logs
Audience
Business
Pricing model
Free, Budget
Official website
enpass.io

Password managers

Price from
$1.99 (Source, checked September 26, 2026)
Free plan
Yes (Source, checked September 26, 2026)
Platforms
Windows, MacOS, Linux, iOS, Android, Chrome, Edge, Firefox, Safari, Brave, Vivaldi, Opera (Source, checked September 26, 2026)
Family plan
$3.99/month billed annually, up to 6 people with family management (Source, checked September 26, 2026)
Passkeys
Yes (Source, checked September 26, 2026)
Security audit
ISO 27001:2022 certified and SOC 2 Type II audited; independently audited by security experts (Source, checked September 26, 2026)
Encryption
AES-256 with 320,000 PBKDF2 rounds using the SQLCipher engine, zero-knowledge, data stored in the user's own cloud (Source, checked September 26, 2026)
Features
TOTP (Source, checked September 26, 2026)
Legal entity
Enpass Technologies Inc (Source, checked September 26, 2026)
Headquarters
United States (Source, checked September 26, 2026)
Support channels
Email, Help-centre, Community (Source, checked September 26, 2026)
Pricing model
Free, Budget

Pros and cons

Pros

  • The long-term plan is priced at $1.99, with no separate renewal rate listed.
  • A family plan billed annually comes with family management for a group.
  • Encryption that only the user can read, with the vault held in the user's own cloud storage.
  • Runs across desktop, mobile and browser platforms: Windows, macOS and Linux.

Cons

  • Support runs on email, help centre and community only.
  • The models listed are free and budget, so there is no premium tier to move up to.
Sinew Software Systems

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Scored 9.4 / 10 by ShieldCue.

Who it suits

  • Businesses that want passwords, verification codes and passkeys handled in one vault
  • People who keep their own cloud accounts and would rather the vault lived there
  • Anyone starting on the free plan and adding the family plan later

Who should look elsewhere

  • Apple Inc., listed at $0.99 a month, if the smallest entry figure settles the choice.
  • AfricaOnline Namibia, whose NAD 550 is set in another market and currency, if you are pricing regionally.

How Sinew Software Systems compares

Frequently asked questions

How much does Sinew Software Systems cost?+

The paid plan runs at $1.99 a month, and the long-term plan is priced at $1.99. A free plan is available for basic use, and a family plan is billed annually with family management for a group. A money back window of 30 days applies.

Where is the company based, and whose law applies?+

The company is headquartered in the United States and its terms are governed by US. The legal entity and the owner are both Enpass Technologies Inc. Those details matter for readers who want to know where a privacy tool is answerable before they pay.

What security certifications and audits does it hold?+

The company states it is certified to an ISO standard and has been independently audited by security experts. Data is protected by encryption that only the user can unlock, and the vault is stored in the user's own cloud, so a copy of the passwords does not rest with the company alone.

Which platforms and browsers are supported?+

It runs on Windows, macOS and Linux. That covers the main desktop and mobile systems plus the major browsers, so a single plan can cover a work laptop and a personal machine. Passkeys are stored alongside passwords for the sites that support them.

Does it handle verification codes and passkeys?+

It includes totp codes and passkeys. In practice that means verification codes for two-step sign in live in the same vault as the passwords, so a separate app is not needed for authentication. Passwords, codes and passkeys share the same encryption, where only the user holds the key.

Who is the plan aimed at?+

The audience is marked as business, so the plan reads as a tool for teams rather than for individual users only. Families are covered by the family plan billed annually with family management, and individuals can start on the free plan before paying.

How do you get help?+

Support runs through email, help centre and community. That means email, a help centre and a community, which suits self-serve troubleshooting. Live chat and phone lines are not part of the listed channels, so a blocking problem may need more digging.

Sources

  • enpass.io checked September 26, 2026

    Backs: Security audit

    “Independently Audited Enpass ensures that security experts regularly review our technology”

  • enpass.io checked September 26, 2026

    Backs: Audience

    “Business - Ideal for businesses that want full data control.”

  • enpass.io/about checked September 26, 2026

    Backs: Features

    “Enpass never stores your data. You decide where it's stored.”

  • enpass.io/get-support checked September 26, 2026

    Backs: Support channels

    “Dedicated email support with responses within 2 business days, plus full access to our Help Center and Community Forums.”

  • enpass.io/pricing checked September 26, 2026

    Backs: Longest plan (months), Pricing model, Encryption, Family plan, Features, Free plan, Long-term plan price, Passkeys, Platforms, Price from, Monthly price

    “3-year”

  • enpass.io/terms-of-use checked September 26, 2026

    Backs: Headquarters, Jurisdiction, Legal entity, Money-back period, Owner

    “1201 N. Market Street, Wilmington, DE 19801”

Compiled from 6 source pages, checked September 26, 2026. We did not open an account.

Not confirmed yet: Devices, Server countries, No-logs audit.

Sinew Software Systems

Sinew Software Systems

A business password manager with built-in verification codes at a low monthly price.

9.4/10See alternatives