# Joos vs CardsMaster

Joos and CardsMaster are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Joos ships an update every 3 weeks, CardsMaster every 6 weeks. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Joos | CardsMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (27 ratings)](https://appshunter.io/ios/app/joos/id1523258693/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 54 MB | 83 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Silcs Solutions Ltd](https://appshunter.io/developer/1523258695) | [Anssi Hakkarainen](https://appshunter.io/developer/1438199764) |

## What reviewers say

### Joos

[App page](https://appshunter.io/ios/app/joos/id1523258693)

Never worry about a dead phone again. This app helps you find nearby charging stations to power up your device on the go. Simply scan a QR code, charge, and return the device at your convenience.

**Highlights:** Find nearby charging stations, Scan QR code to rent, Charge on the move, Flexible return options, Discover promotions

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Convenient in emergencies
- 👍 Helpful in hospitals
- 👍 Good idea
- 👍 Saves the day

**What reviewers complain about**

- 💰 Overpriced
- 🔋 Slow charging speed
- 🔋 Does not charge phone
- 💰 Charged for non-returned item
- 💰 Excessive charges

**Reported bugs**

- Charger lead faulty
- Return didn't work properly
- First battery did not charge
- Power bank did not charge phone
- Machine took money but didn't work

**Requested features**

- Improve charging speed
- Offer better value for money
- Provide an exchange option for faulty cables
- Make pricing clearer in the app
- Support fast charging


### CardsMaster

[App page](https://appshunter.io/ios/app/cardsmaster/id6757079036)

**In-app purchases:** none


## Frequently asked questions

### Is Joos free?

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

### Is CardsMaster free?

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

### Do Joos or CardsMaster have ads?

Neither Joos nor CardsMaster shows ads.

### Which is updated more often, Joos or CardsMaster?

Joos ships an update every 3 weeks, and CardsMaster every 6 weeks. Most recently, Joos was updated on October 25, 2026 and CardsMaster on October 17, 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.*