# 완충e vs 러너러너

The clearest difference is update cadence: 완충e at every 5 days against 러너러너's fortnightly. 완충e also leads on review sentiment (13% vs 0%). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 1.0 for 완충e against 1.0 for 러너러너. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 13% of 완충e's written reviews are positive against 0% of 러너러너's.

완충e ships an update every 5 days, 러너러너 fortnightly. The most recent releases landed on September 22, 2026 and July 22, 2026 respectively.

## The numbers

| Metric | 완충e | 러너러너 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/e/id1531816431/reviews) | [1.0 (1 ratings)](https://appshunter.io/ios/app/id6469495456/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **13.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free | — |
| Size | 63 MB | 30 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [에브리포터블(주)](https://appshunter.io/developer/1515091508) | [주식회사 러너소프트](https://appshunter.io/developer/1712076841) |

## What reviewers say

### 완충e

[App page](https://appshunter.io/ios/app/e/id1531816431)

This service allows users to easily rent and return portable chargers via QR code. Simply rent when needed, and return the charger after use without needing the app for the return process.

**Highlights:** QR code rental, Easy return, On-demand battery charging, Convenient service

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient for emergencies
- 👍 Fast charging speed (mentioned by a few)
- 👍 Multiple charging ports
- 👍 Quick customer service feedback (rare but mentioned)

**What reviewers complain about**

- 🐛 Login issues (frequent)
- 🐛 Payment/card registration failures
- 🐛 Battery not charging/malfunctioning
- 🐛 Return/refund issues
- 🐛 Inconsistent charging speed

**Reported bugs**

- Login authentication failures (Kakao, Naver)
- Payment gateway errors (card registration, payment failure)
- Batteries not charging or showing as charging when they are not
- Return process not registering, leading to extra charges
- App crashes or errors preventing usage

**Requested features**

- Improve login system stability
- Fix payment processing errors
- Ensure battery quality before rental
- Provide clearer return instructions/confirmation
- Improve customer service availability and responsiveness


### 러너러너

[App page](https://appshunter.io/ios/app/id6469495456)

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

**In-app purchases:** none


## Frequently asked questions

### Is 완충e free?

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

### Is 러너러너 free?

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

### Which has better reviews, 완충e or 러너러너?

완충e and 러너러너 are both rated 1.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do 완충e or 러너러너 have ads?

Neither 완충e nor 러너러너 shows ads.

### Which is updated more often, 완충e or 러너러너?

완충e ships an update every 5 days, and 러너러너 fortnightly. Most recently, 완충e was updated on September 22, 2026 and 러너러너 on July 22, 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.*