| Price from | $25/mo | $0.01/mo |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 4 | 3 |
| Spec score · Conversion Rate Optimization Software | 8.0 (#15) | 8.4 (#10) |
| Company history | Fomo's founder says he co-founded the company with Justin Mares in March 2016. | Nosto says its journey began in 2013 with three founders. |
| Founded | 2016 | Nosto states that its journey began in 2013 with founders Jani Luostarinen, Antti Pöyhönen and Juha Valvanne. |
| Integrations | Fomo's integrations page lists Shopify, Zapier, webhooks, Mailchimp, Instagram, Yotpo, Drip, Stripe, Google Reviews, Square, and HubSpot among its connections. | Official integration documentation covers Shopify, Magento, Shopware, PrestaShop, BigCommerce and Salesforce Commerce Cloud. |
| Product | Fomo displays customer interactions in real time on a website as social proof. | Nosto describes itself as an AI-powered Commerce Experience Platform for personalizing customer journeys and improving commerce outcomes. |
| Support | Fomo's homepage lists [email protected] as a contact for help. | Customers receive Help Center and Huginn access; Professional and Enterprise customers receive priority support and customer-success alignment. |
| Trial | Pricing offers a 14-day trial for the listed plans. | Nosto says it does not offer a standard self-service free trial, but offers qualified merchants a structured proof of concept. |