Comparison

Polygon ID vs Petra

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Polygon ID

Create and manage your self-sovereign digital identity. Prove access rights and reputation privately using zero-knowledge cryptography. Access web3 and web2 services with secure, private on-chain verifications.

Highlights
  • Create and manage digital identity
  • Prove access rights privately
  • Manage verifiable claims
  • Generate private proofs
  • Secure authentication (biometrics/PIN)
  • Identity recovery with seed phrase
Read full description

Polygon ID enables you to create and manage your own self-sovereign digital identity. Prove your access rights and reputation without revealing any of your personal information. Manage verifiable claims about your identity and generate private proofs for digital interactions. Polygon ID is an open-source and private by default identity system based on zero-knowledge cryptography (zkSNARK). With the Polygon ID app, you will have access to web3 and web2 services and the ability for private on-chain verifications. Convenient control: - Secure authentication with biometrics or a 6-digit PIN - Identity recovery with seed phrase mechanism Obtaining claims: - Scan an issuer’s QR code - Follow the steps to connect your identity with the issuer and retrieve your claims - Store and manage your claims from your wallet Presenting your private proofs: - Scan a verifier’s QR code - Accept the proof request presented in your wallet - Generate and share the private proof of your claims with the verifier.

About

Petra

Manage and use your cryptocurrency on the Aptos blockchain with this secure and intuitive wallet. Explore decentralized applications, earn on stablecoins, and stake assets with low fees and fast transactions.

Highlights
  • Store and manage crypto assets
  • Explore dApps with multi-tabs
  • Earn on stablecoins with Petra Earn
  • Stake APT and access liquid staking
  • Biometric authentication
  • Sub-second transactions and low fees
Features
Read full description

Petra Wallet is your gateway to the Aptos blockchain. Built by the team at Aptos Labs, Petra makes it easy, safe, and intuitive to store, manage, and use your crypto all in one place. Whether you're moving money, exploring dApps, or earning on your stablecoins, Petra gives you the tools to experience what Web3 has to offer. Do more with your crypto • Sub-second transactions and sub-cent fees (yes, really, less than $0.0001) • Use Petra Earn to deposit stablecoins in one click—no lockups, no friction • Explore with multi-tabs—because every DeFi app deserves a dedicated window • Stake APT or access liquid staking through top Aptos DeFi protocols We keep you safe • You stay in full control of your assets • Your privacy is 100% respected • Independently audited by top security firms • Biometric authentication for added protection Tap into the future of Web3 • Discover ecosystem events and community activity • Connect with creators shaping the next era of the web3 landscape • Join the OG community of builders on Aptos If you want speed, low fees, and real innovation—Aptos is your blockchain. Download Petra Wallet today and explore everything Aptos has to offer.

Screenshots

Polygon ID4 screens
Petra4 screens

Verdict

The call

The clearest difference is rating: Petra at 4.8 against Polygon ID's 4.3. Petra also leads on ratings volume (317 vs 7). Polygon ID's advantage is review sentiment (100% vs 75%) and device support (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Petra holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Petra has 317 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 100% of Polygon ID's written reviews are positive against 75% of Petra's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 11, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Polygon ID versus Petra: the parameters behind the verdict, then further details
ParameterPolygon IDPetra
PriceFreeFree
Rating4.3 (7 ratings)4.8 (317 ratings) — better
Positive reviews100.0% of reviews — better75.0% of reviews
Number of ratings7317 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.4
Further details — not scored
Size156 MB97 MB
Age rating4+17+
DeveloperZKID Labs AGAptos Labs

Customer experience

Polygon ID

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Petra

All ratings317 ratings
Positive94.3%
Neutral1.9%
Negative3.8%
Written reviews24 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Bugs and requests

Polygon ID

Not enough reviews yet to summarise bugs or requests.

Petra

Reported bugs

5 issues
  • Insufficient funds for transaction fee
  • Authentication error on app open, retry does nothing
  • App not working after installing, shows 'Ver... error' and is frozen
  • Not showing staked balance and unstake is unavailable
  • Incorrect number formatting (e.g., 1.000 for a thousand)

Requested features

3 requests
  • Dark mode option
  • Ability to change currency preference
  • Support for 24 seed phrases

In-app purchases

None

Polygon ID

No in-app purchases

None

Petra

No in-app purchases

Questions

Is Polygon ID free?
Polygon ID is free to download, with no in-app purchases.
Is Petra free?
Petra is free to download, with no in-app purchases.
Which has better reviews, Polygon ID or Petra?
Petra is rated higher. Polygon ID averages 4.3 out of 5 from 7 ratings, while Petra averages 4.8 from 317 ratings.
Do Polygon ID or Petra have ads?
Neither Polygon ID nor Petra shows ads.
Which is updated more often, Polygon ID or Petra?
Polygon ID ships an update every 3 weeks, and Petra every 3 weeks. Most recently, Polygon ID was updated on October 11, 2026 and Petra on October 30, 2026.

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