# Lnk3r vs Backflow Pro

The clearest difference is update cadence: Backflow Pro at every 3 weeks against Lnk3r's every 2 months. Lnk3r's advantage is ratings volume (8 vs 1) and iOS requirement (10.0 vs 15.6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Lnk3r sells 4 in-app purchases, starting at $24.99 per month and Backflow Pro sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Lnk3r against 5.0 for Backflow Pro. That said, the two scores are not equally well evidenced: Lnk3r has 8 ratings behind it against 1, so its average is the more settled of the two.

Lnk3r ships an update every 2 months, Backflow Pro every 3 weeks. Both last shipped on June 1, 2026.

## The numbers

| Metric | Lnk3r | Backflow Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/lnk3r/id1574645301/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/backflow-pro/id1643496459/reviews) |
| Number of ratings | **8** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 37 MB | 22 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Technasurge LLC](https://appshunter.io/developer/1574645303) | [Time Lock Documentation, LLC](https://appshunter.io/developer/1196195710) |

## What reviewers say

### Lnk3r

[App page](https://appshunter.io/ios/app/lnk3r/id1574645301)

This app helps businesses generate social media reviews by making it easy for customers to leave feedback. It offers QR codes and direct messaging options to streamline the review process, ultimately boosting online reputation and attracting new customers.

**Highlights:** QR code review generation, Direct review requests via text/email, Customer review landing page, Boost online reputation, Attract new customers, Multiple pricing tiers

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Economy | $24.99 | per month |
| Basic | $34.99 | per month |
| Standard | $59.99 | per month |
| Enterprise | $99.99 | per month |


### Backflow Pro

[App page](https://appshunter.io/ios/app/backflow-pro/id1643496459)

This app digitizes backflow prevention documentation, creating secure, visual records with time-stamped photos and GPS data. It streamlines compliance letters, invoices, and repair tracking for building and facility professionals.

**Highlights:** Digital backflow prevention program creation, Time-stamped and GPS-stamped photo embedding, Electronic signature capture, Automated compliance letters and invoices, Cloud syncing across multiple devices, Scheduling calendar with push notifications, Organized file storage by project and client

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stand Alone Plan | $3.99 | per month |
| Bronze Plan | $29.99 | per month |
| Silver Plan | $49.99 | per month |
| Gold Plan | $71.99 | per month |
| Platinum Plan | $80.99 | per month |


## Frequently asked questions

### Is Lnk3r free?

Lnk3r is free to download, with in-app purchases available.

### Is Backflow Pro free?

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

### Which has better reviews, Lnk3r or Backflow Pro?

Lnk3r and Backflow Pro are both rated 5.0 out of 5 on the App Store, from 8 and 1 ratings respectively.

### Do Lnk3r or Backflow Pro have ads?

Neither Lnk3r nor Backflow Pro shows ads.

### Which is updated more often, Lnk3r or Backflow Pro?

Lnk3r ships an update every 2 months, and Backflow Pro every 3 weeks. Most recently, Lnk3r was updated on June 1, 2026 and Backflow Pro on June 1, 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.*