# Mystery Client vs Callkeet

The clearest difference is in-app purchases: Mystery Client at none against Callkeet's 1. Callkeet's advantage is update cadence (every 3 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Callkeet sells 1 in-app purchase, starting at $6.99 per year. Mystery Client asks for nothing beyond the download.

Mystery Client ships an update every 3 weeks, Callkeet every 3 days. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Mystery Client | Callkeet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/mystery-client/id1380166821/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 76.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 103 MB | 25 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mebius srl](https://appshunter.io/developer/609711569) | [Next Digital Studio di Damiano Angeli](https://appshunter.io/developer/6775295616) |

## What reviewers say

### Mystery Client

[App page](https://appshunter.io/ios/app/mystery-client/id1380166821)

Become a mystery shopper to evaluate services and products. Complete free training, choose assignments near you, and share your feedback. Get paid for completed tasks with no upfront costs or obligations.

**Highlights:** Mystery shopping assignments, Free training courses, Flexible task selection, Feedback submission, Payment via bank transfer, Amazon, or PayPal

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

**In-app purchases:** none


### Callkeet

[App page](https://appshunter.io/ios/app/callkeet/id6775295344)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Callkeet PRO | $6.99 | per year |


## Frequently asked questions

### Is Mystery Client free?

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

### Is Callkeet free?

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

### Do Mystery Client or Callkeet have ads?

Neither Mystery Client nor Callkeet shows ads.

### Which is updated more often, Mystery Client or Callkeet?

Mystery Client ships an update every 3 weeks, and Callkeet every 3 days. Most recently, Mystery Client was updated on October 17, 2026 and Callkeet on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*