# Air Tracker, Device Detector. vs eSign

The clearest difference is update cadence: eSign at every 3 days against Air Tracker, Device Detector.'s every 9 days. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Air Tracker, Device Detector. sells 3 in-app purchases, starting at $6.99 per 7 days and eSign sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Air Tracker, Device Detector. holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 71 and 32 respectively.

Air Tracker, Device Detector. ships an update every 9 days, eSign every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Air Tracker, Device Detector. | eSign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (71 ratings)](https://appshunter.io/ios/app/air-tracker-device-detector/id6739254297/reviews)** | [4.4 (32 ratings)](https://appshunter.io/ios/app/esign-sign-pdf-and-docs/id6740799205/reviews) |
| Number of ratings | **71** | 32 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 71 MB | 29 MB |
| Requires iOS | **15.3** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Adan Malon](https://appshunter.io/developer/1764279694) | [Brandon Doyle](https://appshunter.io/developer/1763015964) |

## What reviewers say

### Air Tracker, Device Detector.

[App page](https://appshunter.io/ios/app/air-tracker-device-detector/id6739254297)

Easily locate misplaced Bluetooth devices with this app's radar-like indicators and precise distance estimations. Enjoy an ad-free experience and unlimited searches with a subscription.

**Highlights:** Bluetooth device scanning, Distance estimation, Radar-like indicators, Advanced device tracking, Unlimited searches, Ad-free experience

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $6.99 | per 7 days |
| Monthly Premium Access | $14.99 | per month |
| Annual Premium Access | $31.99 | per year |


### eSign

[App page](https://appshunter.io/ios/app/esign-sign-pdf-and-docs/id6740799205)

Digitally sign PDFs and documents quickly and securely from your mobile device. Upload files, add your signature, text, or initials, and export signed documents instantly without printing or scanning.

**Highlights:** Sign PDFs and documents digitally, Create and save signatures, Add text, initials, and dates, Scan documents with camera, Export and share signed files, Secure and easy interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Trial Subscription | $6.99 | per 7 days |
| Weekly Subscription | $6.99 | per 7 days |


## Frequently asked questions

### Is Air Tracker, Device Detector. free?

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

### Is eSign free?

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

### Which has better reviews, Air Tracker, Device Detector. or eSign?

Air Tracker, Device Detector. is rated higher. Air Tracker, Device Detector. averages 4.6 out of 5 from 71 ratings, while eSign averages 4.4 from 32 ratings.

### Do Air Tracker, Device Detector. or eSign have ads?

Neither Air Tracker, Device Detector. nor eSign shows ads.

### Which is updated more often, Air Tracker, Device Detector. or eSign?

Air Tracker, Device Detector. ships an update every 9 days, and eSign every 3 days. Most recently, Air Tracker, Device Detector. was updated on October 24, 2026 and eSign on October 24, 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.*