OptiMail vs Rocket Address Validator
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 22, 2026 for OptiMail, Jul 3, 2026 for Rocket Address Validator.
The short answer
Head to head
Pay as you go
- · Automated UK address checks
- · Customer address self-correction
- · Dashboard and daily reports
- · Mover and goneaway detection
- · No monthly subscription
- · Pay only for positive matches
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShoppers often let their phone fill in their address at checkout, and it can be one they saved before they moved. Shopify checks the address is real. OptiMail checks your customer still lives there. Every UK order is checked for movers and goneaways as soon as it’s placed.
Eliminate shipping errors with real-time address validation in your Shopify checkout. Validate addresses before and after purchase using smart prompts, automated emails, and correction forms. Reduce failed deliveries, improve accuracy, and give customers an easy way to fix invalid or incomplete addresses.
- Checks UK delivery addresses after checkout
- Prompts customers to review their address
- Highlights possible mover and goneaway records
- Helps reduce failed delivery and reshipping costs
- Real-time address validation at checkout
- Post-checkout forms and email recovery flow
- Validate shipping and billing addresses
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  OptiMail |  Rocket Address Validator |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | OptiMail | Rocket Address Validator |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | OptiMail | Rocket Address Validator |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | 1 | Not published |
Listing
| Measure | OptiMail | Rocket Address Validator |
|---|---|---|
| Shopify category rank | #445 | #413(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 12, 2026 | May 1, 2026 |
| Languages | 1 | 1 |
| Developer | BBS | Swishtag |
FAQ
OptiMail and Rocket Address Validator: common questions
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 22, 2026 for OptiMail, Jul 3, 2026 for Rocket Address Validator; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 22, 2026 for OptiMail, Jul 3, 2026 for Rocket Address Validator. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.