# zii vs Mars App

The clearest difference is update cadence: Mars App at fortnightly against zii's monthly. On price, review sentiment, ads and in-app purchases there is nothing between them.

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

zii ships an update monthly, Mars App fortnightly. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | zii | Mars App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.8 (5 ratings)](https://appshunter.io/ios/app/mars-app/id1564858562/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 51 MB | 34 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ZiiTech Pty Ltd](https://appshunter.io/developer/1492861757) | [Shenzhen Elephant Robotics Technology Co.,Ltd](https://appshunter.io/developer/1550713294) |

## What reviewers say

### zii

[App page](https://appshunter.io/ios/app/zii/id1492861758)

Consolidate all your membership cards in one place to access exclusive merchant services like points, coupons, and birthday gifts. Track your spending in real-time and stay updated on promotions.

**Highlights:** Digital membership card storage, Access merchant services, Points tracking, Coupon redemption, Birthday gift notifications, Real-time consumption tracking, Event promotion updates

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Mars App

[App page](https://appshunter.io/ios/app/mars-app/id1564858562)

This app enhances interaction with a companion robot, offering features for basic control, interactive play, and system settings. It aims to support the robot's growth and user engagement.

**Highlights:** Robot interaction enhancement, Basic control functions, Interactive play modes, State monitoring, Settings management

**In-app purchases:** none


## Frequently asked questions

### Is zii free?

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

### Is Mars App free?

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

### Do zii or Mars App have ads?

Neither zii nor Mars App shows ads.

### Which is updated more often, zii or Mars App?

zii ships an update monthly, and Mars App fortnightly. Most recently, zii was updated on November 3, 2026 and Mars App on October 24, 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.*