# Flex Scanner vs invsi

The clearest difference is review sentiment: invsi at 100% against Flex Scanner's 33%. Flex Scanner's advantage is rating (4.5 vs 4.1) and ratings volume (25 vs 8). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Flex Scanner sells 3 in-app purchases, starting at $0.99 per 7 days and invsi sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Flex Scanner holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 25 and 8 respectively. Written reviews complicate that: 33% of Flex Scanner's written reviews are positive against 100% of invsi's, so the app with the better star average is not the one people write more warmly about.

Flex Scanner ships an update every 9 days, invsi fortnightly. Both last shipped on October 14, 2026.

## The numbers

| Metric | Flex Scanner | invsi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (25 ratings)](https://appshunter.io/ios/app/flex-scanner-pdf-scanner/id1521904431/reviews)** | [4.1 (8 ratings)](https://appshunter.io/ios/app/invsi/id6444667120/reviews) |
| Number of ratings | **25** | 8 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Freemium | Freemium |
| Size | 32 MB | 26 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Coftivo Teknoloji LTD](https://appshunter.io/developer/1730111773) | [新坤 杨](https://appshunter.io/developer/1655993145) |

## What reviewers say

### Flex Scanner

[App page](https://appshunter.io/ios/app/flex-scanner-pdf-scanner/id1521904431)

Transform your smartphone into a portable scanner with advanced OCR technology. Capture, store, and share documents in various formats like PDF, JPG, and TXT. Organize, edit, and secure your files with ease.

**Highlights:** Mobile document scanning, OCR text recognition, Multiple export formats (PDF, JPG, TXT), Document collaboration and sharing, File organization and password protection, Electronic signature integration

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Monthly | $1.99 | per month |
| Life Time | $9.99 | one-time |


### invsi

[App page](https://appshunter.io/ios/app/invsi/id6444667120)

This app helps parents manage their children's device usage by controlling screen time and blocking inappropriate content. It offers a local-only experience with no ads or registration, prioritizing user privacy.

**Highlights:** Screen time management, Content blocking, No advertisements, Local data storage, No registration required, Premium features via subscription

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly PRO | $0.99 | per month |
| Invsi PRO (Annual) | $4.99 | per year |
| Unlock Application Icon | $0.99 | one-time |
| Lifetime PRO | $14.99 | one-time |


## Frequently asked questions

### Is Flex Scanner free?

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

### Is invsi free?

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

### Which has better reviews, Flex Scanner or invsi?

Flex Scanner is rated higher. Flex Scanner averages 4.5 out of 5 from 25 ratings, while invsi averages 4.1 from 8 ratings.

### Do Flex Scanner or invsi have ads?

Neither Flex Scanner nor invsi shows ads.

### Which is updated more often, Flex Scanner or invsi?

Flex Scanner ships an update every 9 days, and invsi fortnightly. Most recently, Flex Scanner was updated on October 14, 2026 and invsi on October 14, 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.*