# Boost System vs ENRGY

The clearest difference is update cadence: ENRGY at every 3 weeks against Boost System's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Boost System ships an update every 2 months, ENRGY every 3 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Boost System | ENRGY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 24 MB | 21 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cerum AS](https://appshunter.io/developer/879204595) | [Øystein Bjørkelo](https://appshunter.io/developer/1896542659) |

## What reviewers say

### Boost System

[App page](https://appshunter.io/ios/app/boost-system/id1319312136)

**In-app purchases:** none


### ENRGY

[App page](https://appshunter.io/ios/app/enrgy-calorie-tracker/id6770486943)

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

**In-app purchases:** none


## Frequently asked questions

### Is Boost System free?

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

### Is ENRGY free?

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

### Do Boost System or ENRGY have ads?

Neither Boost System nor ENRGY shows ads.

### Which is updated more often, Boost System or ENRGY?

Boost System ships an update every 2 months, and ENRGY every 3 weeks. Most recently, Boost System was updated on October 29, 2026 and ENRGY on October 25, 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.*