# iCSP vs OneFlash

The clearest difference is price: OneFlash at Free against iCSP's $0.99. OneFlash also leads on update cadence (every 2 weeks vs every 2 months). iCSP's advantage is iOS requirement (13.2 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

OneFlash is free to download; iCSP costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

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

## The numbers

| Metric | iCSP | OneFlash |
| --- | --- | --- |
| Price | $0.99 | **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 | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 10 MB | 28 MB |
| Requires iOS | **13.2** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OmniAccess S.L.](https://appshunter.io/developer/507983509) | [OneFlash](https://appshunter.io/developer/1495172902) |

## What reviewers say

### iCSP

[App page](https://appshunter.io/ios/app/icsp/id507983506)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is iCSP free?

iCSP costs $0.99, with no in-app purchases.

### Is OneFlash free?

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

### Do iCSP or OneFlash have ads?

Neither iCSP nor OneFlash shows ads.

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

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