# The Sustainer vs Emo SWFT Charge

The Sustainer and Emo SWFT Charge are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 8 months. The most recent releases landed on September 16, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | The Sustainer | Emo SWFT Charge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | Every 8 months |
| Size | 64 MB | 92 MB |
| Requires iOS | 13.0 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [ENVO-SUSTAINER PRIVATE LIMITED](https://appshunter.io/developer/1680880040) | [Kazam EV Tech Pvt. Ltd.](https://appshunter.io/developer/1563868547) |

## What reviewers say

### The Sustainer

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

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Emo SWFT Charge

[App page](https://appshunter.io/ios/app/emo-swft-charge/id6473427609)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is The Sustainer free?

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

### Is Emo SWFT Charge free?

Emo SWFT Charge is free to download, with no in-app purchases.

### Do The Sustainer or Emo SWFT Charge have ads?

Neither The Sustainer nor Emo SWFT Charge shows ads.

### Which is updated more often, The Sustainer or Emo SWFT Charge?

The Sustainer ships an update every 8 months, and Emo SWFT Charge every 8 months. Most recently, The Sustainer was updated on September 16, 2026 and Emo SWFT Charge on September 23, 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.*