# Serendip vs ChargeBull

The clearest difference is update cadence: ChargeBull at every 3 weeks against Serendip's every 31 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Serendip ships an update every 31 months, ChargeBull every 3 weeks. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Serendip | ChargeBull |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 22 MB | 66 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Teamsystem SPA](https://appshunter.io/developer/545232556) | [THE BIG PLATFORM SRL](https://appshunter.io/developer/1743879104) |

## What reviewers say

### Serendip

[App page](https://appshunter.io/ios/app/serendip/id1590171806)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChargeBull

[App page](https://appshunter.io/ios/app/chargebull/id6499561659)

Easily find and rent portable power banks to keep your devices charged on the go. Simply scan a QR code to rent and return power banks at designated stations.

**Highlights:** Locate power bank distributors, Real-time device availability, QR code power bank rental, Intuitive rental process, Easy power bank return, Automatic transaction updates

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Serendip free?

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

### Is ChargeBull free?

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

### Do Serendip or ChargeBull have ads?

Neither Serendip nor ChargeBull shows ads.

### Which is updated more often, Serendip or ChargeBull?

Serendip ships an update every 31 months, and ChargeBull every 3 weeks. Most recently, Serendip was updated on September 30, 2026 and ChargeBull 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.*