Comparison

Backflow Pro vs Backflow Log

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

Head to head
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

About

Backflow Log

Features
Read full description

Backflow Log helps certified Massachusetts backflow testers manage independent work, from the first customer call to the next test. Keep customers and assemblies together, record readings in the field, prepare paperwork, and track what needs attention. No account or per-test fee. Recordkeeping and PDF generation work offline; sending reports requires a connection. MASSACHUSETTS PAPERWORK Prepare inspection reports on the original MassDEP Form 8 template. Add separately dated repair/retest visits, each with its own Form 10, readings, repair details, and signatures. An appendix keeps long notes and additional details readable. Completeness checks highlight missing information; incomplete packets are clearly marked DRAFT - DO NOT FILE and can be exported for review. Choose RP, RPDA, DC, DCDA, PVB, or SVB assemblies. Enter the applicable readings and review the calculated result. A failed inspection remains unresolved while its retest is unfinished. Follow your certification training and current test procedures. RESUME INTERRUPTED WORK Field test edits save automatically as drafts. Return after an interruption and continue where you left off. Pending edits remain separate from the saved report until you save them. Saved report details stay preserved when you update customer or tester information. TRACK REPORT DELIVERY Save reusable filing instructions for each water system: email, portal, mail, in person, or another route. Track water-supplier and owner copies separately, with dates, references, notes, and retained PDFs. Sharing a file does not automatically mark it delivered. Check each supplier's current requirements; the app does not submit reports automatically or guarantee acceptance. PLAN VISITS AND FOLLOW-UPS Record contacted, booked, no-show, completed, or cancelled work. Set appointment times, durations, contact dates, and next follow-ups. One visit can cover several devices. See open work on the Dashboard and warnings for overlapping appointments or visits beyond testing deadlines. Completing a visit does not create a test result or change a filing deadline. BRING YOUR CUSTOMER BOOK Import customer and device inventory from CSV with column mapping, validation, and duplicate review. Keep imported due dates without inventing past tests. Export inventory and test-history summaries for spreadsheet use. KEEP DEADLINES VISIBLE Track testing intervals, unresolved failures and repair/retest deadlines. Adjust device intervals for the water system's requirements. Optional local reminders cover testing, repairs, appointments, follow-ups, certification, gauge calibration, and backups. YOUR RECORDS, ON YOUR DEVICE Export full backups containing records, photos, signatures, drafts, filing history and plans. Keep copies somewhere you control and restore when needed. There is no automatic cross-device sync or developer cloud copy. No advertising, analytics, or tracking. You choose when and where to share records. Backflow Log is independent and is not affiliated with or endorsed by MassDEP or any water system. Forms and completeness checks do not replace local instructions, required permits, or professional judgment. EARLY ACCESS Backflow Log is free while it's new and I'm still learning what testers actually need from it. It won't stay free forever — but if you install it now, everything you have stays yours, free, permanently. Tell me what's missing.

Screenshots

Backflow Pro4 screens
Backflow Log4 screens

Verdict

The call

The clearest difference is in-app purchases: Backflow Log at none against Backflow Pro's 5. Backflow Pro's advantage is iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support 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. Backflow Pro sells 5 in-app purchases, starting at $3.99 per month. Backflow Log asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 14, 2026 and November 13, 2026 respectively.

Scorecard2 real differences · 7 level
Backflow Pro versus Backflow Log: the parameters behind the verdict, then further details
ParameterBackflow ProBackflow Log
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size22 MB4 MB
Age rating4+4+
DeveloperTime Lock Documentation, LLCDayton Thorpe

In-app purchases

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
None

Backflow Log

No in-app purchases

Questions

Is Backflow Pro free?
Backflow Pro is free to download, with in-app purchases available.
Is Backflow Log free?
Backflow Log is free to download, with no in-app purchases.
Do Backflow Pro or Backflow Log have ads?
Neither Backflow Pro nor Backflow Log shows ads.
Which is updated more often, Backflow Pro or Backflow Log?
Backflow Pro ships an update every 3 weeks, and Backflow Log every 3 weeks. Most recently, Backflow Pro was updated on November 14, 2026 and Backflow Log on November 13, 2026.

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