Free and open first
Best Recommender Systems in 2026
Recommender systems suggest products or content across websites, mobile apps and APIs. This list covers hosted services and free or open-source tools for teams choosing a recommendation system on a budget.
- 25 apps
- Research read 7 Oct 2026
- How the order is worked out
- 1
WooCommerce
by WooCommerceFree plan Open source AndroidAPIiPhone+5WooCommerce offers a free self-hosted store core with unlimited products, orders and APIs. Its self-hosted model is an important consideration for anyone choosing a store platform.
- 2
Algolia
Free plan AndroidAPIExtension+2Algolia pairs search APIs and developer libraries with tools for ranking, personalization, analytics, and merchandising.
- 3
Amazon Personalize
Free plan AndroidAPIiPhone+1Amazon Personalize provides recommendation and segmentation capabilities with real-time and batch delivery. Review the free-tier allowances and pay-as-you-go operation rates when estimating its fit.
7.6 Visit site - 4
GitHub CodeQL
Free plan ExtensionLinuxMac+3 - 5
Personyze
Free plan AndroidAPIiPhone+1Personyze combines real-time personalization, recommendations, and testing, with consent controls and a free plan.
- 6
Recombee
Free plan AndroidAPIiPhone+1Recombee combines personalized recommendations and search with controls for tailoring business rules.
- 7
Wiser AI
Free plan APIExtensionWebWiser AI covers recommendations from search and cart through post-purchase, with order-based plan tiers. Merchants should account for reinstalling its snippet after a Shopify theme change.
- 8
LensKit
Free plan LinuxMacWindows - 9
LimeSpot
Free trial AndroidiPhoneWebChoose LimeSpot if your store needs personalized recommendations and content, with testing and analytics to assess performance.
- 10
Adobe Commerce
by Adobe CommercePaid APISelf-hostedWebAdobe Commerce covers large catalogs, B2B purchasing, multichannel selling, integrations, and extensibility.
- 11
Relewise
Free trial AndroidAPIiPhone+1Relewise brings search, recommendations, and merchandising controls together for e-commerce. Its tailored pricing means prospective customers need to request terms for their setup.
- 12
Constructor
Paid AndroidAPIiPhone+1Constructor brings product discovery, shopper personalization, and merchandising tools together for retail ecommerce.
- 13
Gorse
Free plan Web - 14
recommenderlab
Free plan LinuxMacWindows - 15
Surprise
Free plan LinuxMacWindows - 16
Peak
Paid APIWebConsider Peak if your business needs AI applications for inventory or pricing decisions and wants implementation and data integration support.
- 17
Syte
Paid AndroidAPIWebSyte combines visual search, recommendations, tagging, and merchandising in one platform.
- 18
Rebuy Bundle Builder
by Rebuy Bundle BuilderPaid WebRebuy Bundle Builder focuses on rule-based bundles and guided selling within Rebuy’s package structure. Consider the order-based pricing and 30-item configuration limit when selecting a plan.
- 19
Adobe Target
Paid AndroidiPhoneWebAdobe Target combines multiple test types with audience targeting across web and mobile. Teams need to request pricing to assess the paid product's cost.
- 20
Bloomreach Recommendations
Paid AndroidiPhoneWeb - 21
Lucidworks Recommendations Module
Paid Web - 22
Prefixbox AI Recommend
Paid AndroidiPhoneWeb - 23
Crobox
Paid Web - 24
- 25
Vue.ai Product Recommendations
Paid Web
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
Compare free-plan terms, paid starting prices, trials, deployment options and recommendation methods. Review whether each option provides live updates, API connectivity, delivery channels and any free-event allowance. If reading or changing code matters, check the licence.
Questions
Do recommender systems have free plans?
Some entries provide a free plan; review its terms and free event allowance before depending on it.
Are free trials available?
A free trial is available from tools on this list. Trial length and terms can differ, so check the listing before signing up.
Which platforms can these tools run on?
Entries cover web, Android, API, iOS, Linux and macOS platforms. Check a tool's platform details for the deployment you need.
Can I use an open-source recommender system?
Some listed tools make their source code available under open-source licences. Check the licence and deployment requirements if you need to read or change the code.
What should I compare besides price?
Assess deployment, recommendation methods, live-update support, API connectivity, delivery channels, free-event allowances and free-plan terms.