Spark Mail vs Roundcube

Spark Mail9.0Visit Roundcube8.7Visit

Higher score Spark Mail #4 in Email Clients 9.0/10 Free plan · 7-day trial Free planFree trial✓ 4 of 4 features Visit Spark Mail

vs

Roundcube #7 in Email Clients 8.7/10 Free plan Free plan✓ 0 of 4 features Visit Roundcube

• Spark Mail fits best

  Teams needing collaborative email workflows

• Roundcube fits best

  Self-hosters wanting a dependable open-source webmail base

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature	Spark Mail 9.0/10 Visit ↗	Roundcube 8.7/10 Visit ↗
At a glance
Editor score	9.0	8.7
Ranking	#4 in Email Clients	#7 in Email Clients
Best for	Teams needing collaborative email workflows	Self-hosters wanting a dependable open-source webmail base
Pricing model	Free plan + paid	Free
Starting price	$99/user/yr	Free plan
Free plan	✓	✓
Free trial	7 days	—
Deployment	Cloud, Desktop, Mobile	Self-hosted
Platforms	Windows, macOS, iOS, Android	Web
Support	Live chat, Docs	Community, Docs
Integrations	20 integrations	1 integrations
Built for	Solo, Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Spark Mail 4/4 · Roundcube 0/4
Unified inbox	✓ (best)	Not checked yet
Offline access	✓ (best)	Not checked yet
Scheduled sending	✓ (best)	Not checked yet
Calendar tools	✓ (best)	—
Specs
App coverage	Not checked yet	Web
Account limit	Not checked yet	Not checked yet
Our review
Pros	Unified inbox, Smart Inbox, search, scheduling, and calendar tools Shared inboxes, drafts, assignments, and private team comments Available on macOS, Windows, iOS, and Android	Free, open-source deployment on a web server IMAP folders, search, threading, identities, and address books Plug-in API with PGP encryption support
Cons	Offline management is limited beyond reading cached emails and attachments Advanced collaboration features require a paid plan Plus limits AI Meeting Notes to 40	No native mobile applications Calendar features are third-party additions Multiple-account support is a third-party addition
Our verdict	Spark Mail is an email client for individuals, professionals, and teams that manage multiple accounts and need more structured workflows. It brings accounts from IMAP, iCloud, Exchange, Outlook, Yahoo, and Google into a unified inbox,… Read the review →	Roundcube is a browser-based, multilingual IMAP email client for people and organizations that want to host their own webmail. Its application-like interface covers message composition and management, MIME and HTML messages, responsive… Read the review →

Strengths and trade-offs

• Spark Mail — where it wins

  • Unified inbox, Smart Inbox, search, scheduling, and calendar tools
  • Shared inboxes, drafts, assignments, and private team comments
  • Available on macOS, Windows, iOS, and Android

  Where it doesn't

  • Offline management is limited beyond reading cached emails and attachments
  • Advanced collaboration features require a paid plan
  • Plus limits AI Meeting Notes to 40

• Roundcube — where it wins

  • Free, open-source deployment on a web server
  • IMAP folders, search, threading, identities, and address books
  • Plug-in API with PGP encryption support

  Where it doesn't

  • No native mobile applications
  • Calendar features are third-party additions
  • Multiple-account support is a third-party addition

• Spark Mail9.0/10 · Free plan · 7-day trial

  A capable cross-platform email client for teams that need shared workflows.

  Visit Spark MailFull verdict →
• Roundcube8.7/10 · Free plan

  A focused, free webmail base for self-hosters who need core IMAP tools.

  Visit RoundcubeFull verdict →