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Cybersecurity · head to head

Authy vs CodeSandbox

Authy logo

Authy

Cybersecurity

Twilio's free authenticator app with encrypted cloud backup, mobile only since the desktop clients were withdrawn in 2024.

From
Free
Free plan
Yes
Full reviewWebsite
C

CodeSandbox

Developer Tools

Cloud platform for instant, isolated development sandboxes and code execution

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Authy there is no export function for stored TOTP secrets, so moving to a different authenticator means disabling and re-enrolling two-factor authentication on every account individually, which is the reason most users stay rather than a reason anyone should choose it.; CodeSandbox detailed paid plan pricing was not published on the accessible pages, making cost comparison difficult.
  • They diverge on capability: Authy covers Encrypted cloud backup, CodeSandbox covers Instant sandboxes.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Authy and CodeSandbox actually diverge.

Attributes where Authy and CodeSandbox differ
AttributeAuthyCodeSandbox
Pricing modelfreefreemium
PlatformsWebweb, api
CategoryCybersecurityDeveloper Tools

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Authy

  • Encrypted cloud backup
  • Multi-device sync
  • Standard TOTP
  • Offline code generation
  • App lock
  • Multi-device toggle
  • Token organisation
  • Free with no account tier

Only in CodeSandbox

  • Instant sandboxes
  • Programmatic sandbox API
  • Secure isolated execution
  • Browser-based editor
  • CI/CD sandbox support
  • Scalable VM infrastructure

What people use each for

The jobs each tool is most often brought in to do.

Authy

  • An individual who wants two-factor authentication on personal accounts and needs it to survive losing or replacing a phonenot CodeSandbox
  • A small team sharing access to a service account where the same tokens must be available on more than one handsetnot CodeSandbox
  • Replacing SMS-based codes with TOTP for someone who would abandon two-factor entirely if recovery were difficultnot CodeSandbox
  • Consolidating tokens scattered across several apps onto one device list with recognisable names and iconsnot CodeSandbox

CodeSandbox

  • Running AI agent-generated code safely in isolationnot Authy
  • Prototyping and sharing web projects in-browsernot Authy
  • Executing untrusted code for a code playground productnot Authy
  • Using sandboxes as ephemeral CI/CD build environmentsnot Authy

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Authy

  • There is no export function for stored TOTP secrets, so moving to a different authenticator means disabling and re-enrolling two-factor authentication on every account individually, which is the reason most users stay rather than a reason anyone should choose it.
  • The Windows, macOS and Linux desktop applications were discontinued in 2024 and stopped working, so any workflow that depended on copying codes on a computer now requires a phone in hand, and users who held tokens only on a desktop client had to restore from backup or re-enrol.
  • The account is keyed to a phone number, so an attacker who takes over that number through a SIM swap can begin the device registration flow, and the only remaining control is the backup password that most users set once and cannot recall.
  • In 2024 an unauthenticated Twilio endpoint allowed attackers to confirm which numbers from a supplied list were registered Authy accounts, exposing around 33 million phone numbers, which disclosed no codes but handed phishers a validated list of people known to use two-factor authentication.
  • It is a free consumer application inside a company that has already retired the paid Authy developer API it once supported, so it carries no revenue of its own, and users should treat its continued existence as a business decision rather than a roadmap commitment.

CodeSandbox

  • Detailed paid plan pricing was not published on the accessible pages, making cost comparison difficult.
  • Focus has shifted toward programmatic sandbox infrastructure, which may be less approachable for casual users just wanting a quick online editor.
  • Public sandboxes are visible to others by default, which is not ideal for proprietary code.

Pricing, plan by plan

Authy

Free

No published plan breakdown. See the Authy review.

CodeSandbox

Free
  • FreeFree
    • Public sandboxes
    • Basic sandbox usage

Which should you pick?

Choose Authy if

  • You need encrypted cloud backup.
  • You want to start without paying.
  • You also want multi-device sync.
Authy review

Choose CodeSandbox if

  • You need instant sandboxes.
  • You want to start without paying.
  • You work on web, api.
  • You also want programmatic sandbox api.
CodeSandbox review

Questions people ask

Is Authy or CodeSandbox better?
Neither clearly leads. Authy starts at Free and CodeSandbox at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Authy or CodeSandbox?
Authy starts at Free and CodeSandbox at Free.
Does Authy or CodeSandbox run on more platforms?
Authy runs on Web. CodeSandbox runs on web, api.
Can I use Authy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Authy best used for?
Authy is most often used for an individual who wants two-factor authentication on personal accounts and needs it to survive losing or replacing a phone, a small team sharing access to a service account where the same tokens must be available on more than one handset, replacing sms-based codes with totp for someone who would abandon two-factor entirely if recovery were difficult, consolidating tokens scattered across several apps onto one device list with recognisable names and icons. Of those, an individual who wants two-factor authentication on personal accounts and needs it to survive losing or replacing a phone and a small team sharing access to a service account where the same tokens must be available on more than one handset are not what CodeSandbox is typically brought in for.
What can Authy do that CodeSandbox cannot?
Authy covers Encrypted cloud backup, Multi-device sync, Standard TOTP, Offline code generation. CodeSandbox covers Instant sandboxes, Programmatic sandbox API, Secure isolated execution, Browser-based editor.

Answered from the vendors’ own pages

Authy: Is Authy still supported?

The mobile apps for iOS and Android are still available and functional. The desktop applications were withdrawn in 2024 and the Authy developer API has been retired in favour of Twilio Verify, so the surrounding product has been shrinking.

CodeSandbox: Does CodeSandbox offer a free tier?

Yes, CodeSandbox offers a free option available on the platform. Users can start for free.

Source
Authy: Can I export my tokens?

No. There is no export of the underlying secrets, by design. Migrating to another authenticator means going to each service, disabling two-factor authentication and setting it up again with the new app.

CodeSandbox: Where can I find CodeSandbox's pricing details?

CodeSandbox maintains a dedicated pricing page, but specific tier names, feature breakdowns, and costs are not displayed on the landing page.

Source
Authy: What happened to the desktop app?

Twilio announced its discontinuation in March 2024 and the applications stopped working later that year. There is no replacement desktop client; the mobile apps are the product now.

Authy: Is multi-device sync safe to leave on?

It is the feature most worth understanding. Leaving new device registration enabled means anyone who controls your phone number can attempt to add a device. The usual advice is to turn the multi-device setting off once your devices are registered and turn it on only when you need to add one.

Authy: What if I lose my phone and forget the backup password?

The secrets are encrypted with that password and Twilio does not hold it, so they cannot be recovered. You would fall back to each individual service's account recovery process, which is exactly the situation the backup was meant to avoid.

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