# RentZeroCO2 vs MobilitACI Modena

The clearest difference is ads: MobilitACI Modena at none against RentZeroCO2's shown. RentZeroCO2's advantage is update cadence (every 3 weeks vs every 15 months). On price, in-app purchases, device support 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.

RentZeroCO2 ships an update every 3 weeks, MobilitACI Modena every 15 months. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | RentZeroCO2 | MobilitACI Modena |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 15 months |
| Size | 62 MB | 29 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [RGM s.r.l.](https://appshunter.io/developer/1635919266) | [emoby srl](https://appshunter.io/developer/1503978995) |

## What reviewers say

### RentZeroCO2

[App page](https://appshunter.io/ios/app/rentzeroco2/id6447355432)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### MobilitACI Modena

[App page](https://appshunter.io/ios/app/mobilitaci-modena/id6468774746)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RentZeroCO2 free?

RentZeroCO2 is free to download, with no in-app purchases.

### Is MobilitACI Modena free?

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

### Do RentZeroCO2 or MobilitACI Modena have ads?

RentZeroCO2 shows ads; MobilitACI Modena does not.

### Which is updated more often, RentZeroCO2 or MobilitACI Modena?

RentZeroCO2 ships an update every 3 weeks, and MobilitACI Modena every 15 months. Most recently, RentZeroCO2 was updated on October 6, 2026 and MobilitACI Modena on October 2, 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.*