Side-by-side comparison · 24 data points
Phone number SMS & WhatsApp OTP Login, Social Login (Google Facebook), and Biometric Authentication
| Singleton | Verify Customers | Simplify My Login ‑ OTP Login | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — |
Verify all registered customers and allow or disallow them to see prices and "add to cart" buttons
| Metric | Singleton | Verify Customers | Simplify My Login ‑ OTP Login |
|---|---|---|
| Rating | ★ 5.0 ★ | 4.8 ★ |
| Total reviews | ★ 75 | 28 |
| 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 (apps, orders, integrations) varies. Recommended by store 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 28-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 | #34 | #39 |
| registration form | #36 | #39 |
| customer support tool | #77 | Not ranked |
| registration | Not ranked | #116 |
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 75 reviews) compared to Simplify My Login ‑ OTP Login (4.8★ from 28 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
It depends on what you're optimizing for. Singleton | Verify Customers fits better if you prioritize rating consistency; Simplify My Login ‑ OTP Login 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. Singleton | Verify Customers has more onboarding documentation maturity (75 reviews vs 28), 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.
Singleton | Verify Customers typically suits early-stage and growth-mode stores based on its review-base composition (75 reviews). Simplify My Login ‑ OTP Login aligns more with early-stage and growth-mode stores (28 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.
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.
