Side-by-side comparison · 24 data points
FosterFlow: email & popup automation. Boost sales with personalized, high-deliverability campaigns
| FosterFlow | Appstle℠ Subscriptions App | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
Conveniently setup and manage subscriptions & boxes with robust merchant tools, and an intuitive UI
| Metric | FosterFlow Email Marketing | Appstle℠ Subscriptions App |
|---|---|---|
| Rating | 5.0 ★ | 5.0 ★ |
| Total reviews | 4 | ★ 7.7k |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free plan available |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | 4 tiers | 4 tiers |
| Listed features | 5 | 5 |
| Featured placements | — | 4 |
| Review velocity (30d) | — | 394 new |
| Languages | 1 supported | 1 supported |
| Listed since | Sep 2025 | Apr 2021 |
FosterFlow Email Marketing and Appstle℠ Subscriptions App are evenly matched on rating (5.0★ 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: FosterFlow Email Marketing at Free plan available, Appstle℠ Subscriptions App 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. Appstle℠ Subscriptions App has the larger user base (7,656 reviews vs 4), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. FosterFlow Email Marketing'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: FosterFlow Email Marketing audit • Appstle℠ Subscriptions App audit
| Keyword | FosterFlow | Appstle℠ Subscriptions App |
|---|---|---|
| subscriptions app | Not ranked | #1 |
| subscription | Not ranked | #1 |
| subscribe and save | Not ranked | #1 |
| your email list | #19 | Not ranked |
| email list with | #24 | Not ranked |
Not featured in any section recently.
No tracked changes.
| Signal | FosterFlow | Appstle℠ Subscriptions App |
|---|---|---|
| Average rating | 5.0 ★ (4) | 5.0 ★ (7.7k) |
| Rating distribution | 5— 4— 3— 2— 1— | 599% 41% 30% 20% 10% |
| Reviews · last 7 days | — | +98 |
| Reviews · last 30 days | — | +394 |
| Reviews · last 90 days | — | +1.3k |
No reviews yet.
Both FosterFlow Email Marketing and Appstle℠ Subscriptions App offer paid plans only. FosterFlow Email Marketing starts at Free plan available; Appstle℠ Subscriptions App starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
FosterFlow Email Marketing (5.0★, 4 reviews) and Appstle℠ Subscriptions App (5.0★, 7,656 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. FosterFlow Email Marketing fits better if you prioritize broader integrations; Appstle℠ Subscriptions App is the call if you need the larger user base. 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. Appstle℠ Subscriptions App has more onboarding documentation maturity (7,656 reviews vs 4), 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.
FosterFlow Email Marketing typically suits early-stage and growth-mode stores based on its review-base composition (4 reviews). Appstle℠ Subscriptions App aligns more with established stores with steady traffic (7,656 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.
The support response has been quick, and most issues can be resolved properly.
Amazing customer service - they helped me completely localize the subscription widget into Traditional Chinese. Super fast, kind, and responsive. Good app.
Great customer support! Kate was very helpful
Great service!!!
The support has been great, but I'm having an issue with my subscription plans. The issue may be with Shopify but I'm still working it out.
Migration support varies by app and category. FosterFlow Email Marketing and Appstle℠ Subscriptions App 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 FosterFlow Email Marketing" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
