Productivity · head to head
Spark Mail vs Anvil
Spark Mail
Productivity
AI-assisted email client from Readdle with a Smart Inbox and team collaboration features
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Spark Mail several sync features route mail metadata and, for some features, credentials through Readdle servers, which is a materially different trust model from a local-only IMAP client.; Anvil free and AI Pack plans restrict interactive signing to UI-only access
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Spark Mail and Anvil actually diverge.
| Attribute | Spark Mail | Anvil |
|---|---|---|
| Pricing model | Per user per month | freemium |
| Platforms | macOS, Windows, iOS, Android, Web | Web |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Productivity).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Spark Mail
- Smart Inbox
- AI Copilot
- AI Summaries
- Team collaboration
- Send later and snooze
- Multi-account unified inbox
Only in Anvil
Nothing recorded that Spark Mail does not also cover.
What people use each for
The jobs each tool is most often brought in to do.
Spark Mail
- A freelancer juggling Gmail and Outlook accounts who wants one AI-assisted inboxnot Anvil
- A small support team sharing a single inbox with internal notes before replyingnot Anvil
- Someone who wants drafts and summaries generated without switching to a new mail hostnot Anvil
- A user who wants notification triage without writing their own filtersnot Anvil
Anvil
- PDF automation for document workflowsnot Spark Mail
- E-signature solutions for legal documentsnot Spark Mail
- Data collection through mobile webformsnot Spark Mail
- Insurance and healthcare document processingnot Spark Mail
- Real estate and financial document automationnot Spark Mail
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Spark Mail
- Several sync features route mail metadata and, for some features, credentials through Readdle servers, which is a materially different trust model from a local-only IMAP client.
- It is a client over accounts you still pay for elsewhere, so the total cost is Spark plus whatever Gmail, Outlook or Fastmail plan you already hold.
- The free tier lacks AI Copilot and summaries, so the features it is best known for sit behind the paid plan.
- Team features are basic next to dedicated shared-inbox tools like Front or Help Scout, so a support team scaling past a few agents will likely outgrow it.
- Windows and Android versions have historically lagged the macOS and iOS apps in feature parity.
Anvil
- Free and AI Pack plans restrict interactive signing to UI-only access
- HIPAA compliance and embedded builders require Enterprise tier
- No native Salesforce or HubSpot integrations, Zapier only
Pricing, plan by plan
Spark Mail
Free- BasicFree
- Unlimited accounts
- Smart Inbox
- Basic send later
- Premium$7.99/month
- AI Copilot and summaries
- Unlimited snooze and send later
- Priority support
- Premium Teams$10/month
- Shared inboxes
- Delegation and internal comments
- Admin controls
Anvil
Free- FreeFree
- 2 user seats
- Unlimited templates
- Unlimited submissions and e-sign packets
- AI Pack$99/month
- 5 user seats
- API access to Document AI
- 50-page Document AI limit
- Product Pack$425/month
- 5 user seats
- All AI Pack features
- White-labeling
- Enterprise$null/custom
- Unlimited user seats
- White-label builders
- Advanced security (HIPAA/BAA/DPA, SSO)
Which should you pick?
Choose Spark Mail if
- You need smart inbox.
- You want to start without paying.
- You work on macOS, Windows, iOS, Android, Web.
- You also want ai copilot.
Questions people ask
- Is Spark Mail or Anvil better?
- Neither clearly leads. Spark Mail starts at Free and Anvil at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Spark Mail or Anvil?
- Spark Mail starts at Free and Anvil at Free.
- Does Spark Mail or Anvil run on more platforms?
- Spark Mail runs on macOS, Windows, iOS, Android, Web. Anvil runs on Web.
- Can I use Spark Mail for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Spark Mail best used for?
- Spark Mail is most often used for a freelancer juggling gmail and outlook accounts who wants one ai-assisted inbox, a small support team sharing a single inbox with internal notes before replying, someone who wants drafts and summaries generated without switching to a new mail host, a user who wants notification triage without writing their own filters. Of those, a freelancer juggling gmail and outlook accounts who wants one ai-assisted inbox and a small support team sharing a single inbox with internal notes before replying are not what Anvil is typically brought in for.
- What can Spark Mail do that Anvil cannot?
- Spark Mail covers Smart Inbox, AI Copilot, AI Summaries, Team collaboration.
Answered from the vendors’ own pages
Spark Mail: Does Spark host my email?
No. It is a client that connects to Gmail, Outlook, iCloud or any IMAP account; you still need a mail host.
Anvil: Does Anvil offer a free plan?
Yes, Anvil's free plan includes unlimited Etch e-signature packets (dashboard only), dashboard-only PDF filling with Document AI, 2,500 free credits for PDF generation, and 500 free PDF-filling API calls.
SourceSpark Mail: Does Spark store my email credentials on its servers?
For some features, including cross-device snooze and send-later sync, yes. It is part of how those features stay consistent across devices.
Anvil: What is the cheapest paid plan?
The AI Pack tier costs $99/month ($79/month annually) and includes 5 user seats, API access to Document AI features, and 50-page document tagging limit.
SourceSpark Mail: Is there a one-time purchase option?
No, Spark is subscription only for individuals and teams; the base client is free but AI and unlimited scheduling need Premium.
Anvil: What additional fees does Anvil charge?
Beyond subscription plans, Anvil charges usage-based fees: $0.10 per PDF fill/generation (2,500 included), $1.00 per workflow submission (25 included), and $1.50 per e-sign packet (25 included). Volume discounts up to 55% off are available.
SourceRelated pages
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