Sign.Plus Review (2026): Swiss eSignature Platform Tested for Modern Teams

Sign.Plus isn't trying to be DocuSign. That's the first thing you notice — and it's exactly what makes this platform interesting. Developed by Alohi SA, a Swiss privacy-focused company that also runs Fax.Plus and Scan.Plus, Sign.Plus takes a deliberately minimalist approach to electronic signatures. Strip away the bloat, keep the compliance, nail the user experience. It's a philosophy that resonates strongly with anyone who's ever been frustrated by the complexity of legacy signing platforms.

The design language tells you everything about the product's priorities. Where most eSignature tools feel like enterprise software wrapped in a modern skin, Sign.Plus genuinely feels like a consumer app that happens to meet business requirements. We uploaded a contract, placed three signature fields, and sent it to a client in 97 seconds — timed. No tutorial, no onboarding wizard, no "schedule a demo" gatekeeping. Just drag, drop, send.

But don't mistake simplicity for weakness. Sign.Plus carries serious regulatory weight: ESIGN Act and UETA coverage in the US, eIDAS in the EU, and — here's the differentiator — ZertES compliance in Switzerland. That last one matters more than most people realize. ZertES is Switzerland's Federal Act on Electronic Signatures, and supporting it positions Sign.Plus as the go-to choice for Swiss legal and financial firms that require domestic regulatory compliance. No other platform in this price range offers that trifecta.

The platform runs as a web application, with polished native apps for iOS and Android, and a clean REST API for developers who want to bake signing into their own products. Every paid plan includes Scan.Plus Pro at no extra charge — a mobile document scanner that pairs naturally with the signing workflow. It's a small thing, but it signals the kind of thoughtful product bundling that separates Alohi from the "feature checkbox" competitors.

The Sign.Plus sweet spot

This is a platform built for people who value clarity over complexity. Freelance designers sending contracts. Boutique law firms closing retainers. European startups that need eIDAS without enterprise pricing. Small agencies managing a handful of monthly agreements. If your signing needs are moderate in volume but high in compliance expectations, and you'd rather not wrestle with Salesforce connectors you'll never use, Sign.Plus is built for you.

Sign.Plus takes a refreshingly transparent approach to pricing — no "contact sales" walls, no hidden per-envelope fees. The free tier is real (not a 14-day trial wearing a disguise), and every plan's limits are clearly documented upfront.

• Free: $0 forever — 3 lifetime signature requests, 1 template. Enough to test the product with a real transaction, but not meant for ongoing use.
• Personal: ~$9.99/month — 10 requests/month, 5 templates. Includes Scan.Plus Pro. The right entry point for freelancers who sign a handful of contracts each month.
• Professional: ~$19.99/month — Unlimited requests, 10 templates, up to 5 users. Unlocks SMS authentication, in-person signing, and folder organization. This is where Sign.Plus starts earning its keep for small teams.
• Business: ~$29.99/month — Unlimited everything, multiple users. Adds Zapier integration, custom branding, and advanced team management. Built for growing agencies and firms.
• Enterprise: ~$49.99/month — SSO, HIPAA (with BAA), data residency controls, Salesforce integration, and priority human support. The compliance tier for regulated industries.

Annual billing cuts costs by up to 40%. Every paid subscriber gets Scan.Plus Pro bundled in — a genuine perk, not a marketing checkbox. Against DocuSign's Personal plan ($15/month for just 5 envelopes), Sign.Plus Professional's unlimited requests make the value gap hard to ignore.

Alohi's Swiss heritage isn't just branding — it's baked into the security architecture. Sign.Plus is engineered under Swiss data protection law, one of the strictest privacy frameworks in the world, and the parent company holds both ISO/IEC 27001 and SOC 2 certifications — independently audited, not self-declared.

The encryption stack is robust: AES-256 for data at rest with per-user unique encryption keys (not shared keys — a meaningful distinction), and TLS 1.3 for data in transit. The infrastructure sits behind DDoS-resistant CDN networks with N-tier architecture designed for isolation between tenants. Two-factor authentication is available across all plans.

What genuinely sets Sign.Plus apart in the compliance category is the breadth of coverage at its price point. HIPAA with a signed BAA is available on Enterprise plans — critical for telehealth platforms and medical practices. GDPR and CCPA compliance covers both European and California privacy requirements. PCI-DSS compliance handles payment card data. And the data residency feature lets businesses pin document storage to specific geographic regions — a hard requirement for EU firms operating under Schrems II, and Swiss companies bound by FADP.

Every completed signing event produces both a detailed audit trail and a standalone certificate of completion — the latter being a signed PDF you can attach to your records independently of the platform itself. That's a subtle but important distinction: your compliance evidence doesn't depend on continued access to Sign.Plus.