# AMP SYSTEMS vs BMS UPGRADE

The clearest difference is update cadence: BMS UPGRADE at monthly against AMP SYSTEMS's every 3 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.

AMP SYSTEMS ships an update every 3 months, BMS UPGRADE monthly. The most recent releases landed on May 17, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | AMP SYSTEMS | BMS UPGRADE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 10 MB | 12 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Sterling Power](https://appshunter.io/developer/1639822244) | [Lithiumhub LLC](https://appshunter.io/developer/1459476104) |

## What reviewers say

### AMP SYSTEMS

[App page](https://appshunter.io/ios/app/amp-systems/id1639822242)

**Features:** macOS Compatibility

**In-app purchases:** none


### BMS UPGRADE

[App page](https://appshunter.io/ios/app/bms-upgrade/id6498470721)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AMP SYSTEMS free?

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

### Is BMS UPGRADE free?

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

### Do AMP SYSTEMS or BMS UPGRADE have ads?

Neither AMP SYSTEMS nor BMS UPGRADE shows ads.

### Which is updated more often, AMP SYSTEMS or BMS UPGRADE?

AMP SYSTEMS ships an update every 3 months, and BMS UPGRADE monthly. Most recently, AMP SYSTEMS was updated on May 17, 2026 and BMS UPGRADE on September 17, 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.*