# Quant Authenticator vs Paranoiq

The clearest difference is in-app purchases: Quant Authenticator at none against Paranoiq's 3. Quant Authenticator also leads on ads (none vs shown) and iOS requirement (16.0 vs 26.0). Paranoiq's advantage is update cadence (fortnightly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Paranoiq sells 3 in-app purchases, starting at $2.99 per month. Quant Authenticator asks for nothing beyond the download.

Quant Authenticator ships an update every 3 months, Paranoiq fortnightly. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Quant Authenticator | Paranoiq |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/paranoiq-home-checklist/id6758020775/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 21 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [esaqa GmbH](https://appshunter.io/developer/1545581496) | [Sergey Kopytov](https://appshunter.io/developer/1744803836) |

## What reviewers say

### Quant Authenticator

[App page](https://appshunter.io/ios/app/quant-authenticator/id6459475820)

**Features:** Vision Pro support

**In-app purchases:** none


### Paranoiq

[App page](https://appshunter.io/ios/app/paranoiq-home-checklist/id6758020775)

Create reusable checklists for recurring routines like home, car, or office. Add photo verification for critical tasks and review your history of completed checks. Offers a practical memory aid for daily tasks.

**Highlights:** Reusable checklists for routines, Photo verification for actions, History of completed checks, Home Screen widget status, Customizable required actions, Multiple place templates

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly PRO | $2.99 | per month |
| Yearly PRO | $14.99 | per year |
| Lifetime PRO | $29.99 | one-time |


## Frequently asked questions

### Is Quant Authenticator free?

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

### Is Paranoiq free?

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

### Do Quant Authenticator or Paranoiq have ads?

Paranoiq shows ads; Quant Authenticator does not.

### Which is updated more often, Quant Authenticator or Paranoiq?

Quant Authenticator ships an update every 3 months, and Paranoiq fortnightly. Most recently, Quant Authenticator was updated on October 25, 2026 and Paranoiq on October 14, 2026.

---

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