# Synergy E vs ZeroFootprint

The clearest difference is iOS requirement: Synergy E at 12.4 against ZeroFootprint's 16.6. On price, update cadence, 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.

Synergy E ships an update every 4 months, ZeroFootprint every 7 months. The most recent releases landed on September 23, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Synergy E | ZeroFootprint |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Free | — |
| Size | 94 MB | 97 MB |
| Requires iOS | **12.4** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Kazam EV Tech Pvt. Ltd.](https://appshunter.io/developer/1563868547) | [Rocknetz Systems Private Limited](https://appshunter.io/developer/1698128502) |

## What reviewers say

### Synergy E

[App page](https://appshunter.io/ios/app/synergy-e-mobility/id1633433163)

This app promotes environmental sustainability by encouraging users to reduce their carbon footprint and improve air quality. It aims to foster a collective commitment to a healthier planet.

**Highlights:** Reduce carbon footprint, Improve air quality, Environmental commitment, Sustainable living, EV charging information

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

**In-app purchases:** none


### ZeroFootprint

[App page](https://appshunter.io/ios/app/zerofootprint/id6449023899)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Synergy E free?

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

### Is ZeroFootprint free?

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

### Do Synergy E or ZeroFootprint have ads?

Neither Synergy E nor ZeroFootprint shows ads.

### Which is updated more often, Synergy E or ZeroFootprint?

Synergy E ships an update every 4 months, and ZeroFootprint every 7 months. Most recently, Synergy E was updated on September 23, 2026 and ZeroFootprint on June 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.*