Side-by-side comparison · 24 data points
SendWILL (Ecomsend): grow your list with popups, send email campaigns & automate sales on autopilot.
| CWILL Popup | SellStack | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
| Metric | CWILL Popup Email Marketing | SellStack: Bundles & Upsells |
|---|---|---|
| Rating | 4.9 ★ | ★ 5.0 ★ |
| Total reviews | ★ 7.1k | 3 |
| Free plan | Yes | Yes |
| Pricing | Free | Free plan available |
| Built for Shopify | ★ Yes | — |
| Pricing tiers | — | 3 tiers |
| Listed features | 5 | 5 |
| Featured placements | 5 | — |
| Review velocity (30d) | 74 new | — |
| Languages | 23 supported | 1 supported |
| Listed since | Oct 2022 | May 2026 |
CWILL Popup Email Marketing and SellStack: Bundles & Upsells are evenly matched on rating (4.9★ vs 5.0★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow. Pricing entry tiers: CWILL Popup Email Marketing at Free, SellStack: Bundles & Upsells at Free plan available. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (apps, orders, integrations) varies. CWILL Popup Email Marketing has the larger user base (7,074 reviews vs 3), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. SellStack: Bundles & Upsells's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat. Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort of orders for 7-14 days before committing. The data tables below show the per-feature breakdown — for most merchants the deciding factor will be a single integration or workflow detail that's hard to compare from listing pages alone. This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Shopify App Store listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: CWILL Popup Email Marketing audit • SellStack: Bundles & Upsells audit
| Listed |
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| Last updated | — | — |
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| Keyword | CWILL Popup | SellStack |
|---|---|---|
| pop up | #2 | Not ranked |
| popup | #2 | Not ranked |
| popups | #2 | Not ranked |
| upsell quiz | Not ranked | #136 |
Not featured in any section recently.
No tracked changes.
| Signal | CWILL Popup | SellStack |
|---|---|---|
| Average rating | 4.9 ★ (7.1k) | 5.0 ★ (3) |
| Rating distribution | 595% 43% 31% 20% 11% | 5— 4— 3— 2— 1— |
| Reviews · last 7 days | +22 | — |
| Reviews · last 30 days | +74 | — |
| Reviews · last 90 days | +250 | — |
Both CWILL Popup Email Marketing and SellStack: Bundles & Upsells offer paid plans only. CWILL Popup Email Marketing starts at Free; SellStack: Bundles & Upsells starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
CWILL Popup Email Marketing (4.9★, 7,074 reviews) and SellStack: Bundles & Upsells (5.0★, 3 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
It depends on what you're optimizing for. CWILL Popup Email Marketing fits better if you prioritize broader integrations; SellStack: Bundles & Upsells is the call if you need the higher-rated option. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Both apps are one-click installs from the Shopify App Store marketplace. CWILL Popup Email Marketing has more onboarding documentation maturity (7,074 reviews vs 3), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
CWILL Popup Email Marketing typically suits established stores with steady traffic based on its review-base composition (7,074 reviews). SellStack: Bundles & Upsells aligns more with early-stage and growth-mode stores (3 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
Great support. Thank you Ria!
Support very professional and fast , App is simple and Effecient
No reviews yet.
Migration support varies by app and category. CWILL Popup Email Marketing and SellStack: Bundles & Upsells both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from SellStack: Bundles & Upsells" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
