# The Sustainer vs ChargeGrid

The clearest difference is update cadence: ChargeGrid at every 6 days against The Sustainer's every 8 months. The Sustainer's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, 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.

The Sustainer ships an update every 8 months, ChargeGrid every 6 days. The most recent releases landed on September 16, 2026 and May 15, 2026 respectively.

## The numbers

| Metric | The Sustainer | ChargeGrid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 days** |
| Size | 64 MB | 3 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [ENVO-SUSTAINER PRIVATE LIMITED](https://appshunter.io/developer/1680880040) | [MAGENTA EV SOLUTIONS PRIVATE LIMITED](https://appshunter.io/developer/1575081549) |

## What reviewers say

### The Sustainer

[App page](https://appshunter.io/ios/app/the-sustainer/id6447298071)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### ChargeGrid

[App page](https://appshunter.io/ios/app/chargegrid-bt/id6478376313)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Sustainer free?

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

### Is ChargeGrid free?

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

### Do The Sustainer or ChargeGrid have ads?

Neither The Sustainer nor ChargeGrid shows ads.

### Which is updated more often, The Sustainer or ChargeGrid?

The Sustainer ships an update every 8 months, and ChargeGrid every 6 days. Most recently, The Sustainer was updated on September 16, 2026 and ChargeGrid on May 15, 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.*