# Device Detector vs String search calculator

The clearest difference is in-app purchases: String search calculator at none against Device Detector's 1. String search calculator also leads on update cadence (every 2 weeks vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Device Detector sells 1 in-app purchase, starting at $3.99 per 7 days. String search calculator asks for nothing beyond the download.

Device Detector ships an update every 7 months, String search calculator every 2 weeks. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Device Detector | String search calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (21 ratings)](https://appshunter.io/ios/app/device-detector-find-devices/id6479974403/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 37 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [yohan teixeira](https://appshunter.io/developer/488660484) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Device Detector

[App page](https://appshunter.io/ios/app/device-detector-find-devices/id6479974403)

Locate misplaced Bluetooth and WiFi devices with real-time tracking. This app helps you find wireless gadgets like headphones and smartwatches by showing their proximity and WiFi connection status, ensuring they are likely still at home.

**Highlights:** Real-Time Radar, Proximity Score in Meters, WiFi Connection Detection, Broad Device Compatibility, Alerts and Notifications, Pin Favorite Devices

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $3.99 | per 7 days |


### String search calculator

[App page](https://appshunter.io/ios/app/string-search-calculator/id6502218395)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Device Detector free?

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

### Is String search calculator free?

String search calculator is free to download, with no in-app purchases.

### Do Device Detector or String search calculator have ads?

Both Device Detector and String search calculator show ads.

### Which is updated more often, Device Detector or String search calculator?

Device Detector ships an update every 7 months, and String search calculator every 2 weeks. Most recently, Device Detector was updated on October 13, 2026 and String search calculator on October 3, 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.*