# OneFlash vs Volvé

The clearest difference is in-app purchases: OneFlash at none against Volvé's 1. OneFlash also leads on iOS requirement (15.1 vs 17.0). Volvé's advantage is update cadence (daily vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Volvé sells 1 in-app purchase, starting at $2.99 per month. OneFlash asks for nothing beyond the download.

OneFlash ships an update every 2 weeks, Volvé daily. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | OneFlash | Volvé |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (22 ratings)](https://appshunter.io/ios/app/oneflash/id6450189093/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 70.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | — |
| Size | 28 MB | 19 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [OneFlash](https://appshunter.io/developer/1495172902) | [Diego Maidana](https://appshunter.io/developer/1737289023) |

## What reviewers say

### OneFlash

[App page](https://appshunter.io/ios/app/oneflash/id6450189093)

Find nearby stations to rent portable phone chargers. Scan a QR code to unlock a battery, charge your device, and return it to any station in the network. Share power with friends and contribute to a more sustainable future.

**Highlights:** Locate nearby charging stations, Scan QR code to unlock battery, Charge multiple devices, Return battery to any station, 100% recyclable batteries, Flexible return policy

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient for emergencies
- 🚀 Fast and easy to use
- 💡 Innovative solution for low battery
- 💰 Often free to use
- 🌍 Wide availability in public places

**What reviewers complain about**

- ❌ Deposits not refunded
- 💸 Scam operation claims
- 📱 App is glitchy and unresponsive
- 🔌 Chargers unavailable or not working
- 🚫 Cannot change country for phone number

**Reported bugs**

- App is glitchy and unresponsive
- Cannot change country for phone number
- Does not send SMS confirmation code
- Activation code not received via SMS
- System does not detect battery return

**Requested features**

- Allow email login option
- Improve detection of battery return
- Ensure cables are not damaged


### Volvé

[App page](https://appshunter.io/ios/app/volve/id6760594576)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Volve Premium EN | $2.99 | per month |


## Frequently asked questions

### Is OneFlash free?

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

### Is Volvé free?

Volvé is free to download, with in-app purchases available.

### Do OneFlash or Volvé have ads?

Neither OneFlash nor Volvé shows ads.

### Which is updated more often, OneFlash or Volvé?

OneFlash ships an update every 2 weeks, and Volvé daily. Most recently, OneFlash was updated on October 8, 2026 and Volvé on October 7, 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.*