# Stark Auth vs Zuca

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.

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.

## The numbers

| Metric | Stark Auth | Zuca |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/zuca-pagamentos-e-cashback/id6498960899/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 62 MB | 70 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [Stark Bank S.A.](https://appshunter.io/developer/1620050036) | [ZUCA SOLUCOES DIGITAIS LTDA](https://appshunter.io/developer/1742048981) |

## What reviewers say

### Stark Auth

[App page](https://appshunter.io/ios/app/stark-auth/id6480134848)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zuca

[App page](https://appshunter.io/ios/app/zuca-pagamentos-e-cashback/id6498960899)

Earn immediate 5% cashback on purchases at participating stores. Refer friends and earn commissions on their transactions and those of their referrals.

**Highlights:** 5% immediate cashback, Referral commissions, Payments at selected merchants, Earn on referred users' transactions, Earn on referred users' referrals

**In-app purchases:** none


## Frequently asked questions

### Is Stark Auth free?

Stark Auth is free to download, with no in-app purchases.

### Is Zuca free?

Zuca is free to download, with no in-app purchases.

### Which is updated more often, Stark Auth or Zuca?

Stark Auth ships an update every 3 months, and Zuca every 2 months. Most recently, Stark Auth was updated on November 4, 2026 and Zuca on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*