# check.supply > AI-optimized mirror of check.supply containing 50 pages totalling 29,247 words of clean markdown content, structured data, and semantic HTML. Original source: https://check.supply/. Last updated: 2026-05-01T13:23:57.152Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [Deliver checks by mail, fast.](/site-root.html): Send checks from your iOS phone in seconds. The app that mails physical checks—no printer, stamps, or envelopes needed. Secure check mailing from your mobile device. (1,335 words) ## Articles & Blog Posts - [banks/american-express/index.html](/banks/american-express/index.html) (1 words) - [How to send a check with _ANECA Federal Credit Union._](/banks/aneca-federal-credit-union/index.html): Learn how to send physical checks using ANECA Federal Credit Union with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that ANECA Federal Credit Union doesn't offer. (678 words) - [How to send a check with _360 Federal Credit Union._](/banks/360-federal-credit-union/index.html): Learn how to send physical checks using 360 Federal Credit Union with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that 360 Federal Credit Union doesn't offer. (678 words) - [blog/bill-pay-check-lost-in-mail/index.html](/blog/bill-pay-check-lost-in-mail/index.html) (1 words) - [How to send a check with _Southern Energy Credit Union._](/banks/southern-energy-credit-union/index.html): Learn how to send physical checks using Southern Energy Credit Union with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that Southern Energy Credit Union doesn't offer. (678 words) - [blog/bill-pay-late-fees-due-to-delays/index.html](/blog/bill-pay-late-fees-due-to-delays/index.html) (1 words) - [How to send a check with _Comerica Bank - Web Banking._](/banks/comerica-bank-web-banking/index.html): Learn how to send physical checks using Comerica Bank - Web Banking with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that Comerica Bank - Web Banking doesn't offer. (1,379 words) - [How to send a check with _ABNB Federal Credit Union._](/banks/abnb-federal-credit-union/index.html): Learn how to send physical checks using ABNB Federal Credit Union with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that ABNB Federal Credit Union doesn't offer. (678 words) - [How long does a mailed rent check take? (timeline & tips)](/blog/mailing-a-rent-check-timelines/index.html): Basics for first‑time renters: how rent checks work, ways to pay, mailing timelines, grace periods, and how Check Supply adds tracking and cancel/reissue. (625 words) - [How to send a check with _1st Advantage Bank._](/banks/1st-advantage-bank/index.html): Learn how to send physical checks using 1st Advantage Bank with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that 1st Advantage Bank doesn't offer. (662 words) - [How to send a check with _APG Federal Credit Union._](/banks/apg-federal-credit-union/index.html): Learn how to send physical checks using APG Federal Credit Union with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that APG Federal Credit Union doesn't offer. (678 words) - [blog/how-to-send-check-online-web-app/index.html](/blog/how-to-send-check-online-web-app/index.html) (1 words) - [blog/how-to-overnight-a-check/index.html](/blog/how-to-overnight-a-check/index.html) (1 words) - [How to send a check with _AAC Credit Union._](/banks/aac-credit-union/index.html): Learn how to send physical checks using AAC Credit Union with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that AAC Credit Union doesn't offer. (662 words) - [How to send a check with _Fox Federal Credit Union._](/banks/fox-federal-credit-union/index.html): Learn how to send physical checks using Fox Federal Credit Union with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that Fox Federal Credit Union doesn't offer. (678 words) - [terms/index.html](/terms/index.html) (1 words) - [How to send a check with _FirstBank (Antlers, OK) - Internet Banking._](/banks/firstbank-antlers-ok-internet-banking/index.html): Learn how to send physical checks using FirstBank (Antlers, OK) - Internet Banking with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that FirstBank (Antlers, OK) - Internet Banking doesn't offer. (710 words) - [all-banks/index.html](/all-banks/index.html) (1 words) - [blog/index.html](/blog/index.html) (1 words) - [Bank-mailed check never arrived? Do this next](/blog/bank-mailed-check-never-arrived/index.html): Paper bill-pay checks travel by USPS First-Class Mail (1–5 business days) plus biller processing. If yours is late, use this step-by-step plan, scripts, and safer options. (832 words) - [How to send a check with _1st Trust Bank._](/banks/1st-trust-bank/index.html): Learn how to send physical checks using 1st Trust Bank with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that 1st Trust Bank doesn't offer. (662 words) - [How to pay rent by check (clear, step‑by‑step)](/blog/pay-rent-by-check-students/index.html): A practical guide for first‑time renters: ways to pay rent by check, timelines, mailing tips, and how Check Supply adds tracking, same‑day print/mail, and cancel/reissue. (1,100 words) - [How to send a check with _1st Gateway Credit Union._](/banks/1st-gateway-credit-union/index.html): Learn how to send physical checks using 1st Gateway Credit Union with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that 1st Gateway Credit Union doesn't offer. (678 words) - [How to send a check with _Fortifi Bank._](/banks/fortifi-bank/index.html): Learn how to send physical checks using Fortifi Bank with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that Fortifi Bank doesn't offer. (646 words) - [The Safest Way to Send a Check by Mail: A Bulletproof Guide](/blog/safest-way-to-send-check-mail/index.html): With check fraud on the rise, learn the safest way to mail a check using Certified Mail. We explain the step-by-step process of doing it yourself vs. using Check Supply. (1,323 words) - [How to send a check with _1st Bank Yuma._](/banks/1st-bank-yuma/index.html): Learn how to send physical checks using 1st Bank Yuma with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that 1st Bank Yuma doesn't offer. (662 words) - [How to send a check with _Banco Popular Puerto Rico._](/banks/banco-popular-puerto-rico/index.html): Learn how to send physical checks using Banco Popular Puerto Rico with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that Banco Popular Puerto Rico doesn't offer. (678 words) - [How to send a check with _Three Rivers Federal Credit Union._](/banks/three-rivers-federal-credit-union/index.html): Learn how to send physical checks using Three Rivers Federal Credit Union with Check Supply. Get premium mail options like Certified Mail, Priority Mail, and Express Mail that Three Rivers Federal Credit Union doesn't offer. (694 words) - [Privacy Policy](/privacy/index.html): Send checks from your iOS phone in seconds. The app that mails physical checks—no printer, stamps, or envelopes needed. Secure check mailing from your mobile device. (1,855 words) - [How ACH Works (and Why You Still Sometimes Need the iOS Check App)](/blog/how-ach-works/index.html): A comprehensive guide to the Automated Clearing House (ACH) network, plus how the Check Supply iOS app bridges the gap when paper checks are still required. (904 words) - [Announcing Certified Mail Check: Tracking & Proof of Delivery](/blog/certified-mail-check/index.html): Certified Mail Check adds end-to-end tracking and proof of delivery for time-sensitive or high-stakes payments—ideal for rent, legal notices, and invoices. (600 words) - [Send Checks Online from Your Phone (No Printer Required)](/blog/send-check-from-phone/index.html): Mail checks online from your iPhone in under 2 minutes. $1.25 per check, includes printing, envelope, and postage. No printer or stamps needed. (625 words) - [How to Write a Check (or Just Use the iOS App Instead)](/blog/how-to-write-a-check/index.html): A detailed, step-by-step guide on how to write a check, designed specifically for Gen Z and Millennials. Learn the basics and discover the easier iOS app alternative with Check Supply. (640 words) - [A Comprehensive Look at the History of Payment Systems](/blog/ach-history/index.html): Explore the history of ACH payments, the role of routing numbers in checks, and how modern apps like Check Supply are bridging traditional and digital payment methods. (773 words) - [Send checks from our new web app!](/blog/checks-for-web/index.html): Check Supply is now available on the web. Sign in from any browser to send checks—no app download required. Plus, get your checks delivered in as little as 2 days with Priority and Express options. (442 words) - [Announcing Express Check: Fastest Delivery, Guaranteed Timelines](/blog/express-check/index.html): Express Check uses USPS Priority Mail Express for overnight to 2‑day delivery in most areas—our fastest, fully tracked option for urgent payments. (473 words) - [How to Send a Check from Your iPhone: Complete iOS App Guide](/blog/how-to-send-check-ios-app/index.html): Learn how to easily send physical checks using your iPhone with the Check Supply iOS app. Follow this simple step-by-step guide to mobile check sending. (320 words) - [How to Mail a Check Without a Printer (Step-by-Step Guide)](/blog/how-to-send-check-from-phone/index.html): Need to send a check but don't have a printer? Here's exactly how to mail checks online from your phone in under 2 minutes. (661 words) - [Do apartments still accept checks for rent? (2025 guide)](/blog/do-apartments-accept-checks/index.html): What big landlords and student housing actually accept today, how checks fit with portals, and how Check Supply reduces risk and admin work. (536 words) - [Announcing Priority Mailed Check: Faster Delivery with Tracking](/blog/priority-mailed-check/index.html): Priority Mailed Check speeds up delivery and includes USPS tracking—great for time-sensitive bills, rent, and invoices when you need it there sooner. (435 words) - [Announcing Scheduled Checks: Send Checks in the Future](/blog/scheduled-check/index.html): You can now schedule checks to be sent on a future date. Choose First‑Class, Express, or Priority, and optionally enable tracking and signature for important payments. (428 words) - [Why Are Rent Payments by Check Still Required by Some Landlords?](/blog/bill-pay-for-bank/index.html): Explore the reasons why landlords in cities like San Francisco and New York still prefer rent payments by check, despite the rise of electronic payment methods. (501 words) - [Why Are Rent Payments by Check Still Required by Some Landlords?](/blog/landlords/index.html): Explore the reasons why landlords in cities like San Francisco and New York still prefer rent payments by check, despite the rise of electronic payment methods. (501 words) - [Understanding Delays in Bill Pay: Why It Takes Longer Than Expected](/blog/why-is-bill-pay-slow/index.html): Explore how emerging technologies are reshaping bill pay systems, making financial management more efficient and user-friendly. (363 words) - [The Changing Landscape of Bank Bill Pay Services](/blog/landscape-of-billpay-evolution/index.html): Explore how traditional banks are phasing out bill pay services while neobanks introduce innovative solutions for modern consumers. (456 words) - [Print a _real, mailable check_ from your browser.](/check-printer/index.html): Print your own checks for free. Enter your bank and payee details, draw your signature, and save a ready-to-print PDF. Everything runs in your browser — your routing and account numbers never leave your device. (717 words) - [Bank Bill Pay vs. Mailing a Check](/blog/bank-bill-pay-vs-check-mailing/index.html): Compare bank bill pay to mailing a paper check. Learn when to use each method — including iOS alternatives for sending checks from your phone. (330 words) - [Find your bank from a _routing number._](/routing-numbers/index.html): Paste any 9-digit ABA routing number to instantly identify the bank that owns it, plus any institutions that route payments through it. Free tool covering 14,000+ US routing numbers. (483 words) - [Supported Banks](/banks/index.html): Browse popular banks supported by Check Supply for sending physical checks. Connect your account and send checks securely from your phone. (480 words) ## Resources - [Full Page Index](/index.html): Browse all cached pages with rich metadata - [About This Cache](/content/about.html): Methodology, technical details, and usage guidelines - [XML Sitemap](/content/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/content/robots.txt): Crawler directives