Comparison

Lnk3r vs Backflow Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lnk3r

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
Read full description

Lnk3r(Pronounced / liNGkər / ) is the leading social media review generator for businesses. If you are not using Lnk3r then you are missing out on the key to new customers. How many products have you passed over because of a bad review or rating? The same thing happens to services as well. Lnk3r was developed to create a clear connection for your customers to review your business making it as easy as possible. How Lnk3r Works: 1. Have your customers scan your personalized QR code which will take them directly to your review landing page OR send a review request to your customers via text message or email. 2. Customer receives review request and can quickly give you a five star review. 3. Reviews increase your business’s online reputation and therefore draws in new customers. Pricing: 1. Economy ($24.99/Month) Recommended for businesses with limited exposure Capacity: Emails: 100 SMSs: 75 2. Basic ($34.99/Month) Recommended for small startups Capacity: Emails: 300 SMSs: 150 3. Standard ($59.99/Month) Recommended for most small companies Capacity: Emails: 800 SMSs: 500 4. Enterprise ($99.99/Month) Recommended for companies looking forward to grow aggressively Capacity: Emails: 2000 SMSs: 1500

About

Backflow Pro

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
Read full description

A powerful, user-friendly app by Time Lock Documentation with embedded backflow testing checklists and compliance letters. This program creates a visual digital backflow documentation record which is attached to common paperwork creating digital visual proof of backflow prevention certification and compliance with governing law. The Backflow PRO provides a mobile and web synced backflow documentation process for all buildings and facilities. The Backflow program has been designed for the building, facility, and maintenance industries, for professional contractors, inspectors, plumbers, states, provinces, cities, counties, water companies, property managers and service technicians. The Backflow PRO documents backflow testing procedures providing testing “passed” and testing “failed” on the building backflow prevention device including a compliance letter, invoice, estimate, change order for any repairs required in the field. This creates a highly effective program for certifying and tracking repaired “backflow assembly devices” on a regular schedule. Backflow prevention device certifications, repairs, work estimates, and invoices are easily scheduled, visually captured, and logged with ease. The Backflow PRO leverages smartphone technology with our patented, time-lock documentation process that includes embedded photos watermarked with time, date, ambient temperature, and GPS location in addition to sorting, storing, and emailing documents and enabling signature capture (E-Sign). The program provides remote E-sign-off from multiple locations and cloud syncing on multiple devices . Features • Creates secure, digital backflow prevention program in minutes (Say goodbye to lost or damaged paperwork). • Reduces labor hours for projects by providing a digital web log and field application. • Backflow inspections, compliance letters, and repairs are easily scheduled, created, digitally captured, and logged with ease. • Embeds photos-stamped with time, date, ambient temp, GPS location. • E-signoff for multiple signatures of inspectors, project managers, etc. • Emails professionally documented, certified PDFs. • Time-locked, encrypted data fields-prevent errors and data tampering. • Organizes and stores files by date, project, system, and client. • Improves accountability-gives clients, water companies, and building owners detailed proof of work. • Designed for field use with no internet or server connections needed. • Cloud storage and synchronizing on multiple devices . • Creates full scheduling calendar with push notifications to field applications. • Certifications can be saved to the PlanGrid documents folder when the application is synchronized. • TLD PRO version, multi-user web dashboard and integrated apps allow teams to sync projects and documents on multiple devices from the field to the office. No ads. $71.99/ month; $80.99/month, $49.99/month, $29.99/month and , $3.99/month are the intended price of your in-app purchase product, Gold_Mechanical, Platinum_Mechanical, and Silver_Mechanical, Bronze_Mechanical and StandAlone_Mechanical. See privacy policy: https://timelockdocs.com/times/site/privacy-policy Terms of use: https://timelockdocs.com/times/site/terms-of-use

Screenshots

Lnk3r4 screens
Backflow Pro4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard3 real differences · 7 level
Lnk3r versus Backflow Pro: the parameters behind the verdict, then further details
ParameterLnk3rBackflow Pro
PriceFreeFree
Rating5.0 (8 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings8 — better1
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.6
Further details — not scored
Size37 MB22 MB
Age rating4+4+
DeveloperTechnasurge LLCTime Lock Documentation, LLC

Customer experience

Lnk3r

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Backflow Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Lnk3r

Subscriptions4
  • Economy7 Days trial$24.991 Month
  • Basic7 Days trial$34.991 Month
  • Standard7 Days trial$59.991 Month
Show 1 more
  • Enterprise7 Days trial$99.991 Month
5 purchases

Backflow Pro

Subscriptions5
  • Stand Alone Plan$3.991 Month
  • Bronze Plan$29.991 Month
  • Silver Plan$49.991 Month
Show 2 more
  • Gold Plan$71.991 Month
  • Platinum Plan$80.991 Month

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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