Bknil SEO vs InvoiceFlow
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Bknil SEO
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Introduction Backlinks are one of the most powerful factors in SEO. But if used carelessly, they can lead to Google penalties. Bknil automates backlinks only in a safe, white-hat way that follows Googleβs guidelines β helping you build trust, authority, and higher SEO rankings without risk. This process goes beyond simply improving keyword positions. When your main landing page or service page gains stronger SEO authority, it creates a foundation for organic traffic, paid ads, and content marketing to perform better together. Key Features Safe Backlink Generation β 100% white-hat methods, fully compliant with Google guidelines. Full Automation β Just enter your keywords and domain, and optimized content is automatically distributed. SEO Power Boost β Improve visibility and ranking for your main and service pages. Performance Tracking β Monitor ranking changes and traffic in real time. Who Is It For Businesses that want to grow SEO step by step, long-term. Companies preparing ads or content marketing that need a solid SEO foundation. Website owners who want safe exposure growth without penalty risks.
InvoiceFlow
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InvoiceFlow is the fastest way to create professional invoices, estimates, and receipts from your iPhone or iPad. Built for freelancers, contractors, consultants, and small business owners who need to bill clients and get paid β without the overhead of complicated accounting software. Create an invoice in under a minute. Add your logo, choose a currency, and send a polished PDF by email or message. No learning curve, no clutter. KEY FEATURES β’ Beautiful invoice templates β clean, professional PDFs you can send with confidence β’ Estimates & quotes β turn approved estimates into invoices with a single tap β’ Receipts β mark invoices as paid and issue receipts automatically β’ Client manager β save client contact info once, reuse it forever β’ Line items, taxes, discounts β full control over what appears on every invoice β’ Multi-currency support β bill international clients in their local currency β’ Custom branding β add your business logo, colors, and contact info β’ Payment tracking β see what's paid, pending, and overdue at a glance β’ PDF export β share via email, iMessage, AirDrop, or save to Files β’ Offline access β draft invoices anywhere and sync when you're back online β’ Secure cloud sync β your data is encrypted and backed up automatically PERFECT FOR β’ Freelancers (designers, developers, writers, photographers, videographers) β’ Independent contractors and consultants β’ Small business owners and sole proprietors β’ Tradespeople (electricians, plumbers, carpenters, landscapers) β’ Tutors, coaches, and service providers β’ Anyone who needs to bill a client quickly and professionally WHY INVOICEFLOW Most invoicing apps are built for accountants β stuffed with features you'll never use and a monthly fee to match. InvoiceFlow is different. It does one thing exceptionally well: helps you send professional invoices and get paid faster. No bloated dashboards, no confusing menus, no hidden paywalls on basic features. Your dashboard shows exactly what you need: total revenue, outstanding balance, and which clients owe you money. That's it. Tap any invoice to see its status, send a reminder, or mark it paid. DASHBOARD AT A GLANCE Track your business in real time: β’ Total invoiced this month β’ Paid vs. outstanding β’ Overdue alerts β’ Recent client activity GET STARTED IN SECONDS 1. Create a free account 2. Add your business details and logo 3. Create your first client 4. Send your first invoice That's it. No tutorials. No demo mode. Just invoicing that works. PRIVACY & SECURITY Your business data belongs to you. Invoices and client information are stored securely with end-to-end encryption in transit and at rest. We never sell your data, and we never share it with third parties for advertising. Download InvoiceFlow today and join thousands of freelancers and small business owners who've ditched spreadsheets, Word templates, and expensive accounting software for a faster, simpler way to bill. Questions or feedback? Email us at support@getinvoiceflow.app β we respond to every message.
Screenshots
Verdict
The clearest difference is in-app purchases: InvoiceFlow at none against Bknil SEO's 4. InvoiceFlow also leads on update cadence (every 6 days vs monthly) and iOS requirement (13.0 vs 15.0). Bknil SEO's advantage is ads (none vs shown). On price and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Bknil SEO sells 4 one-off in-app purchases. InvoiceFlow asks for nothing beyond the download.
Bknil SEO ships an update monthly, InvoiceFlow every 6 days. The most recent releases landed on August 7, 2026 and September 14, 2026 respectively.
| Parameter | Bknil SEO | InvoiceFlow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 6 days β better |
| Ads | No β better | Yes |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 27 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | SANGWOO NOH | Ryoma Uchida |
In-app purchases
Bknil SEO
- Starter$5.99
- Basic$11.99
- Pro$24.99
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- Enterprise$49.99
InvoiceFlow
No in-app purchases









