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Affiliate Marketing · head to head

OSI Affiliate Software vs Post Affiliate Pro

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OSI Affiliate Software

Affiliate Marketing

Referral marketing software with social sharing

From
$47/month
Rated
-
Full reviewWebsite
Post Affiliate Pro logo

Post Affiliate Pro

Affiliate Marketing

Full-featured affiliate tracking software

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: OSI Affiliate Software limited onboarding materials and knowledge resources for new users; Post Affiliate Pro tracking volume capped per tier: Starter at 10,000 requests/month, Pro at 1 million requests/month
  • They diverge on capability: OSI Affiliate Software covers Social media sharing, Post Affiliate Pro covers Multiple tracking methods.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which OSI Affiliate Software and Post Affiliate Pro actually diverge.

Attributes where OSI Affiliate Software and Post Affiliate Pro differ
AttributeOSI Affiliate SoftwarePost Affiliate Pro
Starting price$47/monthOn request
PlatformsWeb, APIWeb, iOS, Android
Founded20002004

Identical on both: pricing model (Unknown), free tier (No), user rating (Not yet rated), category (Affiliate Marketing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in OSI Affiliate Software

  • Social media sharing
  • Contest and giveaways
  • Coupon tracking
  • Email campaigns
  • Affiliate management
  • Magento
  • BigCommerce

Only in Post Affiliate Pro

  • Multiple tracking methods
  • Multi-tier commissions
  • Affiliate banners
  • Split commissions
  • Fraud protection
  • Stripe
  • WordPress

Both cover

  • Shopify
  • WooCommerce
  • PayPal
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

OSI Affiliate Software

  • affiliate marketing managementnot Post Affiliate Pro
  • Workflow automationnot Post Affiliate Pro
  • Reportingnot Post Affiliate Pro

Post Affiliate Pro

  • Affiliate program management and trackingnot OSI Affiliate Software
  • Multi-tier commission structuresnot OSI Affiliate Software
  • Performance analytics and reportingnot OSI Affiliate Software

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

OSI Affiliate Software

  • Limited onboarding materials and knowledge resources for new users
  • Custom domain setup can be challenging with configuration issues
  • Reported bugs and stability issues in user reviews
  • Limited ability to accommodate complex commission structures
  • No automation marketplace integration (no Zapier, limited third-party ecosystem)

Post Affiliate Pro

  • Tracking volume capped per tier: Starter at 10,000 requests/month, Pro at 1 million requests/month
  • Multiple admin accounts restricted to Ultimate and Network tiers only
  • Single merchant account on Starter, Pro, and Ultimate tiers; multiple merchants only on Network tier
  • Single campaign limit on Starter tier

Pricing, plan by plan

OSI Affiliate Software

$47/month
  • Basic$47/month
    • Unlimited affiliate programs
    • Multi-tier support
    • Social media sharing
  • Plus$97/month
    • All Basic features
    • Advanced analytics
    • Influencer directory

Post Affiliate Pro

On request

No published plan breakdown. See the Post Affiliate Pro review.

Which should you pick?

Choose OSI Affiliate Software if

  • You need social media sharing.
  • You work on Web, API.
  • You also want contest and giveaways.
OSI Affiliate Software review

Choose Post Affiliate Pro if

  • You need multiple tracking methods.
  • You work on Web, iOS, Android.
  • You also want multi-tier commissions.
Post Affiliate Pro review

Questions people ask

Is OSI Affiliate Software or Post Affiliate Pro better?
Neither clearly leads. OSI Affiliate Software starts at $47/month and Post Affiliate Pro at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OSI Affiliate Software or Post Affiliate Pro?
OSI Affiliate Software starts at $47/month and Post Affiliate Pro at On request.
Does OSI Affiliate Software or Post Affiliate Pro run on more platforms?
OSI Affiliate Software runs on Web, API. Post Affiliate Pro runs on Web, iOS, Android.
What is OSI Affiliate Software best used for?
OSI Affiliate Software is most often used for affiliate marketing management, workflow automation, reporting. Of those, affiliate marketing management and workflow automation are not what Post Affiliate Pro is typically brought in for.
What can OSI Affiliate Software do that Post Affiliate Pro cannot?
OSI Affiliate Software covers Social media sharing, Contest and giveaways, Coupon tracking, Email campaigns. Post Affiliate Pro covers Multiple tracking methods, Multi-tier commissions, Affiliate banners, Split commissions. Both handle Shopify, WooCommerce, PayPal, Web support.

Answered from the vendors’ own pages

OSI Affiliate Software: What are OSI Affiliate's pricing tiers?

OSI Affiliate offers Basic plan at $47/month and Plus plan at $97/month. Both include unlimited affiliate program creation, multi-tier support, and social media sharing features.

Source
Post Affiliate Pro: What is the Starter plan's annual cost after the summer discount?

Starter plan is $53/month when billed annually (regular $79/month), totaling $636/year. This includes 33% discount through January 1, 2027. Regular annual price is $948/year. Source: https://www.postaffiliatepro.com/pricing

Source
OSI Affiliate Software: Does OSI Affiliate offer a free trial?

Yes, OSI Affiliate offers a free 15-day trial with no credit card required, allowing full platform access before commitment.

Source
Post Affiliate Pro: How much does each additional tracking request cost for the Pro plan?

Post Affiliate Pro Pro plan charges $1 per 10,000 overage requests beyond the included 1,000,000/month. Ultimate tier is $0.40 per 10,000 requests, and Network tier is $0.20 per 10,000 requests. Source: https://www.postaffiliatepro.com/pricing

Source
OSI Affiliate Software: What e-commerce platforms does OSI Affiliate integrate with?

OSI Affiliate integrates with Shopify, BigCommerce, PayPal, WordPress, WooCommerce, Magento, and other major e-commerce platforms.

Source
Post Affiliate Pro: How long does Post Affiliate Pro retain tracking history?

Starter plan retains tracking history for 2 years. Pro, Ultimate, and Network tiers offer unlimited tracking history retention, providing complete affiliate program records. Source: https://www.postaffiliatepro.com/pricing

Source
OSI Affiliate Software: Does OSI Affiliate support multi-tier affiliate programs?

Yes, every OSI Affiliate plan includes multi-tier affiliate program support, allowing you to create secondary commission structures and recruit top affiliates.

Source
Post Affiliate Pro: What optional add-ons are available for Post Affiliate Pro?

Add-ons include: Multiple currencies ($19), GeoIP geolocation ($9), Commission groups ($19), Smartlinks ($19), Lifetime referrals manager ($9), Audit log ($17), and Branding removal ($27) per month. Source: https://www.postaffiliatepro.com/pricing

Source
OSI Affiliate Software: What commission tracking and reporting features does OSI Affiliate provide?

OSI Affiliate tracks sales, impressions, clicks, session time, and historical data with detailed reporting section. It includes promo code tracking, built-in promotional resources, and affiliate recruitment tools.

Source
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