Side-by-side comparison · 24 data points
SendWILL (Ecomsend): grow your list with popups, send email campaigns & automate sales on autopilot.
| CWILL Pop up | Kairo ‑ Post Purchase Upsell | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
Post-purchase upsells, checkout & thank you page customization, A/B testing & more
| Metric | CWILL Pop up Email Marketing | Kairo ‑ Post Purchase Upsell |
|---|---|---|
| Rating | 4.9 ★ | ★ 5.0 ★ |
| Total reviews | ★ 7.1k | 1 |
| Free plan | Yes | Yes |
| Pricing | Free | Free plan available |
| Built for Shopify | ★ Yes | — |
| Pricing tiers | — | 2 tiers |
| Listed features | 5 | 5 |
| Featured placements | 5 | — |
| Review velocity (30d) | 69 new | — |
| Languages | 23 supported | 1 supported |
| Listed since | Oct 2022 | May 2026 |
CWILL Pop up Email Marketing and Kairo ‑ Post Purchase Upsell 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 Pop up Email Marketing at Free, Kairo ‑ Post Purchase Upsell 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 Pop up Email Marketing has the larger user base (7,090 reviews vs 1), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Kairo ‑ Post Purchase Upsell'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 Pop up Email Marketing audit • Kairo ‑ Post Purchase Upsell audit
| Listed |
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| Last updated | — | — |
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| Keyword | CWILL Pop up | Kairo ‑ Post Purchase Upsell |
|---|---|---|
| pop up | #2 | Not ranked |
| popup | #2 | Not ranked |
| popups | #2 | Not ranked |
| upsell quiz | Not ranked | #199 |
Not featured in any section recently.
| Signal | CWILL Pop up | Kairo ‑ Post Purchase Upsell |
|---|---|---|
| Average rating | 4.9 ★ (7.1k) | 5.0 ★ (1) |
| Rating distribution | 595% 43% 31% 20% 11% | 5— 4— 3— 2— 1— |
| Reviews · last 7 days | +22 | — |
| Reviews · last 30 days | +69 | — |
| Reviews · last 90 days | +249 | — |
Both CWILL Pop up Email Marketing and Kairo ‑ Post Purchase Upsell offer paid plans only. CWILL Pop up Email Marketing starts at Free; Kairo ‑ Post Purchase Upsell starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
CWILL Pop up Email Marketing (4.9★, 7,090 reviews) and Kairo ‑ Post Purchase Upsell (5.0★, 1 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 Pop up Email Marketing fits better if you prioritize broader integrations; Kairo ‑ Post Purchase Upsell 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 Pop up Email Marketing has more onboarding documentation maturity (7,090 reviews vs 1), 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 Pop up Email Marketing typically suits established stores with steady traffic based on its review-base composition (7,090 reviews). Kairo ‑ Post Purchase Upsell aligns more with early-stage and growth-mode stores (1 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 Pop up Email Marketing and Kairo ‑ Post Purchase Upsell 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 Kairo ‑ Post Purchase Upsell" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
