NPS by email tools compared
Trusted Shops, Fairing, KnoCommerce, Zigpoll, Grapevine, Retently, SatisMeter, Survicate, Wizville and le Guide Henri, compared for PrestaShop and WooCommerce stores. Delighted, the long-standing reference, shut down on 30 June 2026.
Prices and features collected from the vendors' websites (pricing pages, app listings, help centres): Trusted Shops (business.trustedshops.com/pricing), Fairing (fairing.co/pricing), KnoCommerce (knocommerce.com/pricing), Zigpoll (zigpoll.com/pricing), Grapevine (apps.shopify.com/grapevine), Retently (help.retently.com), SatisMeter (satismeter.com/pricing), collected on October 19, 2026 and October 21, 2026 ; Survicate (survicate.com/pricing), Wizville (wizville.com/fr), collected on October 22, 2026. Public entry offers, prices excluding VAT, which may have changed since. “—”: information not found.
What is NPS?
The Net Promoter Score measures loyalty to a brand with a single question: “Would you recommend this brand to a friend?”, rated from 0 to 10. 9 and 10 are promoters, 7 and 8 passives, 0 to 6 detractors; the NPS is the percentage of promoters minus the percentage of detractors, from −100 to +100. Sent regularly by email, not only after a purchase, it tracks the brand's image over time.
Prices and plans
Free plan, entry price and supported stores. Recurring NPS tools are general-purpose tools, with no PrestaShop module.
| le Guide Henri | Trusted Shops | Fairing | KnoCommerce | Zigpoll | Grapevine | Retently | SatisMeter | Survicate | Wizville | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Free | Paid | ||||||||||
| Free | 40 orders/month | no | 200 orders/month | no | 50 responses/month | 14-day trial | 14-day trial | 25 responses/month | 10-day trial | no | |
| Entry price | €0 | €20 excl. VAT/month | on quote | $49/month | $249/month | $29/month | $25/month | $99/month | $199/month | $89/month | on quote |
| PrestaShop / WooCommerce | ✓ / ✓ | ✓ / ✓ | ✗ / ✗ | ✗ / ✗ | ✗ / ✗ | ✗ / ✗ | ✗ / via Zapier | ✗ / ✗ | ✗ / via Zapier | — | |
| Shopify | ✗ | — | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | — | |
Features, tool by tool
NPS by email, periodic sending without a purchase, follow-up after purchase, NPS question in the post-purchase survey, “why” question by score, revenue by category, detractor alert and languages.
| le Guide Henri | Trusted Shops | Fairing | KnoCommerce | Zigpoll | Grapevine | Retently | SatisMeter | Survicate | Wizville | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Free | Paid | ||||||||||
| NPS by email | ✗ | ✓ | in the review invitation | via Klaviyo / ESP | via Klaviyo / ESP | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Periodic sending, no purchase needed | ✗ | ✓ | ✗ tied to the order | ✗ 10–15 days after order | ✗ 30 days after order | — | — | ✓ adjustable frequency | ✓ | Growth plan and above | — |
| NPS in the survey | included | — | $99/month add-on | paid add-on | ✓ | ✓ | — | — | — | — | |
| Email follow-up after purchase | ✗ | ✓ | — | — | — | — | — | — | — | — | — |
| “Why” question by score | ✓ | — | $99/month add-on | — | ✓ | ✓ | ✓ | ✓ | ✓ | — | |
| Revenue by category (promoters, detractors) | ✓ | — | — | — | — | — | — | — | — | — | |
| Detractor alert | ✗ | ✓ | — | — | — | — | — | — | — | — | — |
| Languages | 14 | — | paid add-on | — | auto translation | several | — | — | — | — | |
| Reviews + survey, one tool | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ | ✗ | ✗ | ✗ | — | |
The tools compared
le Guide Henri
Two scores: post-purchase NPS, asked in the confirmation survey from the free plan, and relationship NPS, emailed every 3, 6 or 12 months to a random share of your customers, from €20 excl. VAT a month. “Why” question by score and revenue by category, including the detractors' revenue at risk, from the free plan; email follow-up after purchase and detractor alert on the paid plan. 14 languages, PrestaShop and WooCommerce modules, reviews and survey in the same tool.
Trusted Shops
NPS is asked in the review invitation, so it is tied to an order. On quote; PrestaShop and WooCommerce modules.
Trusted Shops alternativeFairing
NPS sent through Klaviyo or another email tool, 10 to 15 days after the order. Free up to 200 orders a month, then from $49 a month. No PrestaShop or WooCommerce module.
Fairing alternativeKnoCommerce
NPS sent through an email tool, 30 days after the order, from $249 a month. No PrestaShop or WooCommerce module.
KnoCommerce alternativeZigpoll
NPS by email, free up to 50 responses a month, then from $29 a month. No PrestaShop or WooCommerce module.
Zigpoll alternativeGrapevine
NPS by email from $25 a month, after a 14-day trial. Shopify app, with no PrestaShop or WooCommerce module.
Grapevine alternativeRetently
General-purpose relationship NPS tool with adjustable sending frequency, from $99 a month after a 14-day trial. No PrestaShop module; WooCommerce via Zapier.
Retently alternativeSatisMeter
General-purpose NPS tool, free up to 25 responses a month, then from $199 a month. No PrestaShop or WooCommerce module.
SatisMeter alternativeSurvicate
General-purpose survey tool (website, product, email), from $89 a month after a 10-day trial. NPS by email included; recurring sending only from the Growth plan, $114 a month billed annually. No PrestaShop or WooCommerce module: it goes through Zapier or Klaviyo.
Survicate alternativeWizville
French satisfaction and review platform for store networks, priced on quote. Post-purchase surveys, NPS and online reviews, tracked location by location. No PrestaShop or WooCommerce module announced.
Wizville alternative
Key takeaways
- E-commerce tools send NPS only once, after an order; only general-purpose tools at $99 to $199 a month send it periodically.
- le Guide Henri sends periodic NPS from PrestaShop and WooCommerce, which no other tool compared here does.
- Revenue by category (what promoters, passives and detractors buy, and the revenue at risk) is included from le Guide Henri's free plan; no other tool compared here shows it.
- Delighted, the long-standing reference for NPS by email, shut down on 30 June 2026.
Method and sources
Each value comes from the vendor's pricing page, app listing or help centre, checked on 19 and 21 October 2026. “—” means the information was not found; “✗” means the feature does not exist. Dollar prices are those shown by the vendor. le Guide Henri is shown in two columns: free plan and paid plan.
Sources: trustedshops.com/newsroom · fairing.co/products/nps · knocommerce.com/nps · zigpoll.com/pricing · apps.shopify.com/grapevine · help.retently.com · satismeter.com/pricing · help.delighted.com · survicate.com/pricing · wizville.com