# AMP SYSTEMS vs RE+

The clearest difference is iOS requirement: AMP SYSTEMS at 13.0 against RE+'s 15.0. 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.

AMP SYSTEMS ships an update every 3 months, RE+ every 4 months. The most recent releases landed on May 17, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | AMP SYSTEMS | RE+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/re-plus/id6742772950/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | — | Free |
| Size | 10 MB | 44 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sterling Power](https://appshunter.io/developer/1639822244) | [上海派智能源股份有限公司](https://appshunter.io/developer/1715104284) |

## What reviewers say

### AMP SYSTEMS

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

**Features:** macOS Compatibility

**In-app purchases:** none


### RE+

[App page](https://appshunter.io/ios/app/re-plus/id6742772950)

Monitor your lithium battery status directly from your iPhone. This utility app provides insights into battery performance and data.

**Highlights:** Lithium battery data monitoring, iPhone integration, Battery performance insights

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

**In-app purchases:** none


## Frequently asked questions

### Is AMP SYSTEMS free?

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

### Is RE+ free?

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

### Do AMP SYSTEMS or RE+ have ads?

Neither AMP SYSTEMS nor RE+ shows ads.

### Which is updated more often, AMP SYSTEMS or RE+?

AMP SYSTEMS ships an update every 3 months, and RE+ every 4 months. Most recently, AMP SYSTEMS was updated on May 17, 2026 and RE+ on September 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*