# iSecurity vs Acoustic Detector

The clearest difference is review sentiment: Acoustic Detector at 100% against iSecurity's 38%. Acoustic Detector also leads on ads (none vs shown). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. iSecurity sells 3 in-app purchases, starting at $8.99 per 7 days and Acoustic Detector sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

iSecurity ships an update every 9 days, Acoustic Detector weekly. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | iSecurity | Acoustic Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (5.6K ratings)](https://appshunter.io/ios/app/isecurity-total-protection/id1672940089/reviews)** | — |
| Number of ratings | **5.6K** | — |
| Positive reviews | 38.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 53 MB | 10 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [PDO Apps Limited](https://appshunter.io/developer/1672940091) | [Jean-David Giroux](https://appshunter.io/developer/6796142518) |

## What reviewers say

### iSecurity

[App page](https://appshunter.io/ios/app/isecurity-total-protection/id1672940089)

Enhance your digital security and privacy with a suite of tools. Securely store passwords, protect photos and videos, browse privately, and get AI-powered advice on online safety.

**Highlights:** Comprehensive online protection, Private browser, Secure file storage, Password manager, Secret notes, WiFi security analysis, AI digital security consultant

**Features:** macOS Compatibility, Safari Extension

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iSecurity Online Premium | $8.99 | per 7 days |
| SALE - iSecurity Premium | $8.99 | per 7 days |
| iSecurity Premium - Year | $44.99 | per year |

**What reviewers like**

- 🚀 Excellent service
- 👍 Love it
- 🔒 Feels safe with my info
- 💡 Challenging and exciting

**What reviewers complain about**

- 🐛 Ruined my phone, slower performance and issues with images
- 🐛 Already installed yet seems uninstalled
- 🐛 Nothing works, paid but not working
- 💰 Expensive for average person
- 🔒 Wants payment info for free trial

**Reported bugs**

- Messed up my Yahoo Mail account
- Can't get the app to work, no way to contact support

**Requested features**

- Don't charge me, I can't use debit/credit cards
- Cancel free trial


### Acoustic Detector

[App page](https://appshunter.io/ios/app/acoustic-detector/id6810440422)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Acoustic Detector Complete | $3.99 | one-time |


## Frequently asked questions

### Is iSecurity free?

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

### Is Acoustic Detector free?

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

### Do iSecurity or Acoustic Detector have ads?

iSecurity shows ads; Acoustic Detector does not.

### Which is updated more often, iSecurity or Acoustic Detector?

iSecurity ships an update every 9 days, and Acoustic Detector weekly. Most recently, iSecurity was updated on November 7, 2026 and Acoustic Detector on November 8, 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.*