# PowerMeter vs eSign Assistant+

The clearest difference is iOS requirement: PowerMeter at 13.0 against eSign Assistant+'s 16.0. 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.

PowerMeter ships an update every 2 months, eSign Assistant+ every 3 months. The most recent releases landed on September 13, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | PowerMeter | eSign Assistant+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/esign-assistant-plus/id6497228439/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Free |
| Size | 1 MB | 234 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chicony power Technology Co.,Ltd.](https://appshunter.io/developer/1186590918) | [Tpv Display Technology (China) Limited](https://appshunter.io/developer/1741305926) |

## What reviewers say

### PowerMeter

[App page](https://appshunter.io/ios/app/powermeter/id1456986633)

**Features:** macOS Compatibility

**In-app purchases:** none


### eSign Assistant+

[App page](https://appshunter.io/ios/app/esign-assistant-plus/id6497228439)

This app helps manage and project content onto ePaper electronic ink screen digital signage. It offers template editing, device and member management, and quick projection features for various meeting and display needs.

**Highlights:** Template management with editing and previews, Bluetooth device management with status, Member list import and management, Group management for templates, devices, and members, One-click image projection, Multilingual support (Chinese, English)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PowerMeter free?

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

### Is eSign Assistant+ free?

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

### Do PowerMeter or eSign Assistant+ have ads?

Neither PowerMeter nor eSign Assistant+ shows ads.

### Which is updated more often, PowerMeter or eSign Assistant+?

PowerMeter ships an update every 2 months, and eSign Assistant+ every 3 months. Most recently, PowerMeter was updated on September 13, 2026 and eSign Assistant+ on September 9, 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.*