Postern vs Stripo
Stripo is good. Postern is the next thing.
Stripo has eight years of maturity, a thousand templates, and integrations to match. Postern adds conversational AI, a visual conditional builder, and tablet editing — and is honest about where Stripo is still ahead.
Last verified: 2026-05-05. Stripo updates pricing and features quarterly — if anything on this page is out of date, tell us.
Where Stripo wins
Three things Stripo does well.
Most comparison pages skip this section. We don’t. If your need is here, Stripo is the right answer — and we’ll see you when your need shifts.
1
Massive template library.
Stripo ships 1,000+ templates. Postern has 30 curated to start. If template volume is your hard requirement, Stripo wins on day one.
2
Established brand.
Eight years in market means tested integrations and recognised name in procurement reviews. Postern is one year old in public — that’s a real difference.
3
Cheaper at the Pro tier.
Stripo Pro is $25 / mo. Postern Pro is $49 / mo. If budget is the only criterion and you do not use AI heavily, Stripo costs less.
Where teams move
Five things Stripo users tell us they outgrew.
Drawn from interviews and the live audit at 14-stripo-live-audit-improvements.md. We name them, we don’t exaggerate them.
- 01
AI is single-shot.
Stripo’s AI generates once. If you didn’t love the result, you start over. Postern keeps the chat — refine the prompt, iterate, accept the diff.
- 02
Conditional logic is hidden.
Stripo supports merge-tag conditionals but the UI doesn’t guide you to them. Postern exposes a visual conditional builder where dragging a block into a branch is the entire interaction.
- 03
iPad editing is a pinch-zoom workaround.
Stripo on iPad is the desktop UI, scaled down. Postern is touch-native: marker-style text selection, swipe-to-undo, large hit targets, no zoom theatre.
- 04
Template updates wipe customisation.
When Stripo refreshes a template you customised, your edits don’t carry over. Postern keeps your customisations on a separate layer that survives template refreshes.
- 05
Merge tags break on export.
Conditional merge tags
{{if}}sometimes don’t survive the round-trip into Mailchimp. Postern preserves them by default.
Feature by feature
Forty-plus rows. No FUD.
Each row is either a hard yes/no or a one-phrase answer. Where Postern doesn’t ship something yet, we say so plainly — “Phase 3 (planned)” means it’s on the public roadmap.
| Feature | Stripo | Postern |
|---|---|---|
| AI | ||
| AI as primary interface | Bolt-on copy generator | |
| Conversational refinement | ||
| Inline block-level edit (Cmd+K) | ||
| AI generation cost ceilings | Per-generation billing | Tier-based cap |
| No-training data agreement | Standard policy | |
| Editor | ||
| Visual conditional builder | Buried merge-tag syntax | |
| Touch-native iPad UX | ||
| Auto-save indicator | Inconsistent | Always visible |
| Drag-and-drop block library | ||
| Code view (HTML / MJML) | Phase 3 (planned) | |
| Saved sections / modules | Phase 3 (planned) | |
| Recoverable trash bin | Phase 3 (planned) | |
| Templates | ||
| Template library sizeVolume favours Stripo at launch — we close the gap as customer needs surface. | 1,000+ | 30 (curated) |
| Template gallery maturity | 8 years curated | Phase 1 launch |
| Premium-template paywall on preview | ||
| AI-aware template structure | ||
| Mobile / Tablet | ||
| iPad editing | ||
| Mobile-portrait gallery thumbnails | Phase 3 (planned) | |
| Per-element hide-on-device controls | ||
| Tablet preview presets | ||
| Personalisation | ||
| Visual conditional branching | Hidden behind merge-tag syntax | Drag-and-drop branches |
| Merge-tag preservation on export | Sometimes fragile | |
| Brand library | ||
| Per-segment template variants | Often via duplicate templates | One template, many branches |
| Collaboration | ||
| Real-time collaboration | Phase 3 (planned) | |
| Version history + rollback | ||
| Side-by-side version compare | Limited | |
| Comment threads on a draft | Phase 3 (planned) | |
| Export & integrations | ||
| Export to Mailchimp / Klaviyo / Brevo / SendPulse | ||
| Export formats | MJML, HTML, image | MJML, HTML, JSON, custom |
| Webhook delivery | Limited | |
| Embeddable SDK | Stripo Plugin | @postern/react + Web Component |
| Platform & developers | ||
| OpenAPI 3.1 contract | Partial | |
| PostgreSQL Row-Level Security multi-tenancy | ||
| MCP server | ||
| Multi-LLM provider routing | ||
| Pricing | ||
| Free tier | $0 — limited templates | $0 — full editor, 50 AI gens |
| Mid-tier monthly priceStripo pricing snapshot 2026-05-05; Postern includes unlimited AI on Pro. | $25 / mo (Pro) | $49 / mo (Pro) |
| Annual discount | ~10% | 17% |
| Pricing transparency | Some tiers hidden | Full transparency |
| AI generation overage charges | Per-generation on lower tiers | |
| Compliance | ||
| GDPR-compliant data residency | ||
| SOC 2 Type II | Audit underway, Q3 2026 target | |
| Multi-language UI | 8 languages | 5 languages (expanding) |
| White-label | Phase 3 (planned) | |
Comparison verified 2026-05-05 against Stripo’s public pricing and product pages and the live audit captured in 14-stripo-live-audit-improvements.md. Spot something stale? Email us.
Migration
Bring your Stripo templates.
We ship a Stripo HTML-to-Postern-JSON converter. Drop in your Stripo export, get back a Postern-native template with merge tags and conditional logic preserved. The first migration usually takes 1–2 attended hours for ten templates — we walk through the first one on a call.
Your data isn’t locked into Postern either. Export to MJML, HTML, or JSON at any time. If we drop the ball, you take your templates and go.
Want to test the migration before signing anything? Email hello@postern.io — we’ll run a sample template for you.
When Stripo is the right call
Three honest cases where we’d say “stay on Stripo”.
You need 1,000+ templates today.
We close that gap as customer needs surface, but if your campaign cadence depends on template volume now, Stripo is the better day-one fit.
You depend on saved sections / modules.
Stripo’s Modules feature is genuinely useful and we don’t have an equivalent yet — it’s on the Phase 3 roadmap. If your team’s shared footer lives there, hold off.
Your team uses real-time co-editing daily.
Live presence + cursor sharing during composition is a Stripo feature today and a Phase 3 item for us. If your workflow is two people in the same template at the same time, wait.
FAQ
Switching questions.
Can I import my Stripo templates?
Yes — we offer an HTML-to-Postern-JSON converter. It preserves merge tags and conditional logic. A 10-template migration usually takes one to two hours of attended import — we walk you through the first one on the call.
Will my Mailchimp / Klaviyo integration still work?
Yes. Postern exports the same MJML and HTML you’re used to. Send from your existing ESP. We are not asking you to change your sending stack.
When is Postern the wrong call?
If you need a thousand templates today, Stripo wins on volume. If your team relies on Stripo’s saved-sections module library or the live collaboration feature, we’re still building those — Phase 3 on our roadmap. The honest answer beats the optimistic one.
Why is your Pro tier more expensive than Stripo’s?
Postern Pro includes unlimited AI generations. Stripo charges per generation on lower tiers, which makes the headline price look cheaper but adds up if you use AI seriously. Total cost of ownership often lands similar or lower with Postern.
Can I run Stripo and Postern in parallel?
Yes — many teams do during migration. You can keep Stripo for the template volume you’ve already invested in and use Postern for new campaigns where AI helps most. Switch fully when the math works for you.
Try Postern. Keep Stripo. Decide on the work.
Free tier is enough to design a real campaign. If it doesn’t click within an hour, you’ve lost an hour, not a contract.