Stark Auth vs Zuca
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stark Auth
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Stark Auth is a two-factor authentication solution developed to enhance security in accessing the client account at Stark Bank. When logging in with Stark Auth, clients significantly reduce the chances of their accounts being compromised. This is due to the requirement of scanning a QR Code with a verified device, in addition to a password, to access their bank account. Detailing features: Enroll with Stark Auth as a new user by logging in with your Stark Bank account. Verify your email and phone number to activate the device. Approve or deny an attempt to log in to your Stark Bank account. Permissions: Camera access for scanning QR Code when authorizing a login. Functionality: With Stark Auth, bolster your Stark Bank account security by verifying your identity with a QR Code scan and password. Enroll seamlessly, verify your email and phone, and easily approve or deny login attempts.
Zuca
Earn immediate 5% cashback on purchases at participating stores. Refer friends and earn commissions on their transactions and those of their referrals.
- 5% immediate cashback
- Referral commissions
- Payments at selected merchants
- Earn on referred users' transactions
- Earn on referred users' referrals
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Com o aplicativo Zuca, você paga em estabelecimentos selecionados e recebe 5% de cashback imediatamente. Indicando amigos para o Zuca, você também recebe uma comissão toda vez que eles ou alguém que eles indicarem utilizarem a plataforma.
Screenshots
Verdict
The clearest difference is device support: Stark Auth at 2 against Zuca's —. On price, update cadence, in-app purchases and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Stark Auth ships an update every 3 months, Zuca every 2 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.
| Parameter | Stark Auth | Zuca |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | — |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 62 MB | 70 MB |
| Age rating | 4+ | 17+ |
| Developer | Stark Bank S.A. | ZUCA SOLUCOES DIGITAIS LTDA |
In-app purchases
Stark Auth
No in-app purchases
Zuca
No in-app purchases
