Best Software Coupons & Promo Codes for September 2026

Microsoft Windows 11 Pro is $9.97 at StackSocial, down from $199. This is a lifetime license installed on one PC with no subscription required. The Pro version adds BitLocker encryption, Hyper-V virtual machine support, and Azure AD business identity tools on top of the standard Windows 11 features. Buy Now at StackSocial

Aiarty Software offers DealNews readers a free license for Aiarty Image Matting for PC & Mac as part of its Labor Day giveaway. The AI-powered software removes image backgrounds and can handle details like hair, fur, semi-transparent objects, and indistinct edges. Deal ends September 13.

Shop Now at Aiarty Image Enhancer

Get this antivirus subscription for $13 by applying promo code "NGZF293". That's a savings of $17. Buy Now at Newegg

You can get an extra $17 off this Malwarebytes Standard antivirus software with promo code "BTSF3742", bringing a 3-device, 1-year license down to $13.  Buy Now at Newegg

This AdGuard Family Plan lifetime subscription is $11, down from $169.99. It covers up to 9 devices with ad blocking, privacy protection, malware defense, and parental controls in one lifetime license. The plan is limited to new users and must be redeemed within 30 days of purchase. Buy Now at StackSocial

Get lifetime licenses for Microsoft Office Professional 2024 and Microsoft Visio 2024 for $14.99 with code "DNVISIO" (reg. $49.99). One-time purchase, no subscription, and no renewal fees. The bundle ships two separate product keys, so you can put both on one PC or use them on two different computers. Office Professional includes Word, Excel, PowerPoint, Outlook, OneNote and Access. Visio 2024 covers flowcharts, org charts, floor plans and network diagrams. Delivery is instant, both keys and setup instructions arrive by email right after checkout. Buy Now at Digitalkeysbox

Grab a OneAir Elite Lifetime Subscription for $99.99 today to save money on hotel and flight bookings whenever prices drop, even after you've booked your reservations. That's a savings of 87% off the list price. This offer is only available to new users. Buy Now at StackSocial

StackSocial's Deal Days Extended sale covers software, subscriptions, and refurbished tech at discounted prices. Microsoft Windows 11 Pro is listed at $9.97, and AdGuard DNS Personal is down to $24.97 for a 5-year subscription. The sale also includes refurbished Apple MacBook Pro laptops starting at $369.99, alongside VPN services, cloud storage plans, and AI tools.  Shop Now at StackSocial

Amazon offers the Norton 360 Premium Antivirus for 10 Devices for $30. Save $70 compared to both the list and typical prices on this comprehensive antivirus and security suite, offering protection for 10 devices with advanced features and a VPN. Buy Now at Amazon

That's 90% off at a savings of $154. Buy Now at StackSocial

The Pro plan covers 15 simultaneous devices across 900+ servers in 100+ countries, with no recurring fees. A 1-year Passhulk Password Manager subscription is included at no extra cost.  Once your license is redeemed, all sales are final.  Buy Now at StackSocial

This bundle pairs a 12-month Microsoft 365 Family subscription with a 1-year NordVPN Basic plan for $85, well under the $180 combined price of buying them separately. The Microsoft 365 plan covers up to 6 people with 6 TB of cloud storage total, while NordVPN protects up to 10 devices for a year. Buy Now at Newegg

Get a lifetime license to Microsoft Office Professional 2024 for Windows 10/11, plus a 170-page user guide, for just $11.99 with code "DNGUIDE" (reg. $34.99). This is a one-time payment with no subscription. It's the full Professional edition and includes Word, Excel, PowerPoint, Outlook, Access, and OneNote.

The guide is published by Digitalkeysbox and covers Word, Excel, PowerPoint and Outlook across 30 chapters, with a Word template, a PowerPoint template and an Excel formula workbook included. Delivery is instant, and your license key, download instructions, and guide arrive by email right after checkout. This is a limited-time offer for one PC. Buy Now at Digitalkeysbox

Use promo code "EPF5546" to get this Adobe Creative Cloud Photography Plan with 1TB of storage for $100. The subscription includes full desktop and mobile versions of Lightroom, Lightroom Classic, and Photoshop, along with 1,000 monthly generative AI credits for tools like Generative Fill and Generative Remove. Buy Now at Newegg

Squarespace's website builder plans are 50% off with promo code "SQSP50", covering the Core, Plus, and Advanced tiers. Blueprint AI, Squarespace's AI-guided builder, asks a handful of questions and instantly spins up unique web designs, including imagery curated by the company's own designers, so users can tweak pages rather than start from scratch. The tool earned a spot on TIME's Best Inventions of 2025. Shop Now at Squarespace

Windows 11 Home and Pro drop to $7.97 at StackSocial, down from their regular prices of $139 and $199 respectively. It's around a buck less than you'd pay elsewhere. The Pro tier adds BitLocker full-disk encryption, Hyper-V virtualization, Windows Sandbox, and Azure AD support over the Home edition. This is a lifetime license for one PC with no recurring fees; redeem within 30 days of purchase. Buy Now at StackSocial

 The Advanced Business plan includes 4,000,000 credits per month, support for up to 20 members, and access to a broad set of AI tools spanning text, image, audio, and video generation across multiple model providers.  Once your license is redeemed, all sales are final.   Buy Now at StackSocial

Lingzio takes 50% off its subscription plans via coupon code "LINGZIO50". Choose an eligible plan and apply the code at checkout to save 50%. Lingzio is offering 50% off its complete A1-C2 language course, covering languages including Spanish, French, German, Italian, Japanese, and English. The program includes structured CEFR-based lessons, smart flashcards, and pronunciation scoring, all bundled under one subscription. Shop Now at Lingzio

Get high discounts on software deals, VPNs, cloud storage, AI tools, memberships, and more. Shop Now at StackSocial

Use promo code "DNMACGUIDE" to get this bundle for $15, down from $35. DigitalKeysBox pairs Office Standard 2024 for Mac with a 170-page user guide that they wrote in-house. It is their own material, written for students and anyone setting Office up for coursework. This is the first time DigitalKeysBox are running Mac together with the guide, so the bundle is unique to them. Buy Now at Digitalkeysbox

Lingzio is taking 50% off subscription plans via coupon code "LINGZIO50". The language-learning app offers structured, CEFR-aligned lessons from A1 to C2, with conversational training, spaced-repetition flashcards, real-time voice recognition, pronunciation grading, and certificates of completion. Courses are available for languages including English, French, German, Spanish, and Japanese, and the first 2 lessons are free to try. Shop Now at Lingzio

As of July 13, Office 2019 for Mac has switched to reduced functionality mode (files can be opened and printed but not edited or saved). For users looking for a no-subscription fix and one that's well under the cost of a single year of Microsoft 365, DigitalKeysBox is offering the Microsoft Office Standard 2024 for Mac 2-Device Lifetime License on sale for $17.99 (reduced from $39.99) via promo code "DEALMAC2024" applied in cart.

Buy Now at Digitalkeysbox

Adobe is cutting 50% off its Creative Cloud Pro plan for the first three months, dropping it to $34.99 a month before it returns to $69.99. It bundles over 20 apps including Photoshop, Illustrator, and Premiere along with Adobe Firefly creative AI tools. 

Beyond that bundle, Adobe sells over two dozen individual plans, from single apps like Photoshop and Lightroom starting around $12 to $23 a month to specialized tools like Adobe Substance 3D Collection at $59.99 a month. Buy Now at Adobe

Get a lifetime license to Microsoft Visual Studio 2026 Professional for $29.99 with code "DNVSPRO26". One-time purchase, no subscription. and no recurring fees. This is the full Professional edition for one Windows PC, with the complete IDE, debugger, profiler and testing tools. Delivery is instant, your license key and setup instructions arrive by email right after checkout.

Buy Now at Digitalkeysbox