Side-by-side comparison · 24 data points
Verify all registered customers and allow or disallow them to see prices and "add to cart" buttons
| Singleton | Verify Customers | Simplify My Login ‑ OTP Login | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — |
Phone number SMS & WhatsApp OTP Login, Social Login (Google Facebook), and Biometric Authentication
| Metric | Singleton | Verify Customers | Simplify My Login ‑ OTP Login |
|---|---|---|
| Rating | ★ 5.0 ★ | 4.8 ★ |
| Total reviews | ★ 83 | 29 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free trial available |
| Built for Shopify | — | — |
| Pricing tiers | 3 tiers | ★ 4 tiers |
| Listed features | ★ 5 | 4 |
| Languages | 1 supported | 1 supported |
| Listed since | Feb 2019 | Nov 2021 |
Singleton | Verify Customers edges out Simplify My Login ‑ OTP Login on rating (5.0★ vs 4.8★), but the gap is small enough that pricing fit and feature differentiation should drive the decision more than the headline number.
Pricing entry tiers: Singleton | Verify Customers at Free plan available, Simplify My Login ‑ OTP Login at Free trial 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 (seats, usage volume, integrations) varies.
Recommended by size: small/early-stage merchants who need fast install and low risk should default to Singleton | Verify Customers; mid-market and enterprise merchants with specific feature requirements should evaluate both — Simplify My Login ‑ OTP Login's 29-review base may include the workflow context that matches your specific use case better than Singleton | Verify Customers's broader-but-shallower coverage.
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: Singleton | Verify Customers audit • Simplify My Login ‑ OTP Login audit
| Keyword | Singleton | Verify Customers | Simplify My Login ‑ OTP Login |
|---|---|---|
| registration forms | #38 | #43 |
| registration form | #39 | #43 |
| registration | #116 | #144 |
No tracked changes.
Both Singleton | Verify Customers and Simplify My Login ‑ OTP Login offer paid plans only. Singleton | Verify Customers starts at Free plan available; Simplify My Login ‑ OTP Login starts at Free trial available. Compare the per-tier features in the Pricing section above before committing.
Singleton | Verify Customers has the higher average rating (5.0★ from 83 reviews) compared to Simplify My Login ‑ OTP Login (4.8★ from 29 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
Singleton | Verify Customers holds the higher average rating (5.0★ vs 4.8★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. Singleton | Verify Customers has the deeper published review base (83 vs 29), which often — though not always — accompanies better-tested setup docs. AppRanks doesn't measure setup time directly: read the recent reviews on each app's detail page for user-reported install experience.
Singleton | Verify Customers typically suits early-stage and growth-mode teams based on its published review base (83 reviews). Simplify My Login ‑ OTP Login typically suits early-stage and growth-mode teams based on its published review base (29 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.
Migration support varies by app and category. Singleton | Verify Customers and Simplify My Login ‑ OTP Login 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 Simplify My Login ‑ OTP Login" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
