# Mailspring - **Canonical URI:** https://www.vioscale.ai/software/mailspring - **Category:** Email Clients - **Homepage:** https://getmailspring.com - **Also known as:** mailspring - **Profile claimed by vendor:** no - **Last updated:** 2026-08-26T19:58:12.236Z ## Vioscale score **66.3 / 100**, confidence 29% (low). Computed 2026-09-01. Composite of weighted, independently-sourced signals (no user reviews, no vendor payment). | Signal | Score | Weight | Contribution | Evidence present | |---|--:|--:|--:|:--:| | price_level | 80 | 0.052 | 4.2 | ✓ | | reliability | 0 | 0.073 | 0 | - | | capabilities | 67.1 | 0.084 | 5.6 | ✓ | | repo_stars | 80.2 | 0.026 | 2.1 | ✓ | | integrations | 26 | 0.09355555555555557 | 2.4 | ✓ | | dependent_projects | 0 | 0.063 | 0 | - | | dev_activity | 50.1 | 0.094 | 4.7 | ✓ | | release_cadence | 91.7 | 0.052 | 4.8 | ✓ | | security_posture | 0 | 0.073 | 0 | - | | package_downloads | 0 | 0.136 | 0 | - | | security_score | 0 | 0.042 | 0 | - | | pricing_transparency | 100 | 0.084 | 8.4 | ✓ | | community_qa_activity | 0 | 0.063 | 0 | - | ## Pricing _As of 2026-08-21, [verify at source](https://getmailspring.com). Independently observed._ from $8/mo · freemium · Free tier > Free tier available; Pro at $8/month | Plan | Price | Free | Commitment | |---|---|:--:|---| | Free | Free | ✓ | - | | Pro | $8/month | - | - | ### Free Multi-account email client with unified inbox, local sync, and productivity features - Multi-account support - Unified inbox - Snooze - Send later - Mail rules - Templates - Grammar and spell checking - Translation support - Follow-up reminders ### Pro Adds message tracking and unlimited scheduling features - Read receipts - Link tracking - Unlimited snooze and send later - Mailbox analytics - Contact and company profiles ## About A lightweight desktop application for Mac, Windows, and Linux that brings together multiple email accounts from different providers into one unified inbox. Core features run locally on your computer, with optional paid features for message tracking, scheduling, and productivity analytics. _Independently observed._ ## Platform & deployment - **Platforms:** macOS, Linux, Windows ## Integrations (8) _Independently observed._ - Gmail - iCloud - Office 365 - FastMail - Outlook.com - Yahoo! - IMAP - SMTP ## Capabilities _The capabilities that matter for Email Clients. "-" = undocumented, not absent._ | Capability | Supported | |---|:--:| | **Capabilities** | | | Deployment model | Local direct imap client | | Universal imap smtp exchange support | ✓ | | Keyboard shortcut only navigation speed | - | | Split inbox AI auto categorization | - | | Read receipts and open tracking | ✓ | | Snooze and scheduled send later | ✓ | | Generative AI LLM email drafting | - | | Conversational chat layout view | - | | Unified multi account inbox view | ✓ | | Pgp end to end encryption support | - | | SOC2 type ii | - | | ISO 27001 | - | | Pricing model | Freemium | ## Release history | Version | Date | Type | |---|---|---| | [1.23.0](https://github.com/Foundry376/Mailspring/releases/tag/1.23.0) | 2026-07-22 | stable | | [1.22.0](https://github.com/Foundry376/Mailspring/releases/tag/1.22.0) | 2026-06-13 | stable | | [1.21.1](https://github.com/Foundry376/Mailspring/releases/tag/1.21.1) | 2026-05-20 | stable | | [1.21.0](https://github.com/Foundry376/Mailspring/releases/tag/1.21.0) | 2026-05-06 | stable | | [1.20.1](https://github.com/Foundry376/Mailspring/releases/tag/1.20.1) | 2026-04-20 | stable | | [1.20.0](https://github.com/Foundry376/Mailspring/releases/tag/1.20.0) | 2026-04-19 | stable | | [1.19.1](https://github.com/Foundry376/Mailspring/releases/tag/1.19.1) | 2026-04-07 | stable | | [1.19.0](https://github.com/Foundry376/Mailspring/releases/tag/1.19.0) | 2026-03-10 | stable | | [1.18.0](https://github.com/Foundry376/Mailspring/releases/tag/1.18.0) | 2026-02-23 | stable | | [1.17.4](https://github.com/Foundry376/Mailspring/releases/tag/1.17.4) | 2026-02-11 | stable | | [1.17.3](https://github.com/Foundry376/Mailspring/releases/tag/1.17.3) | 2026-01-31 | stable | | [1.17.2](https://github.com/Foundry376/Mailspring/releases/tag/1.17.2) | 2026-01-24 | stable | | [1.17.1](https://github.com/Foundry376/Mailspring/releases/tag/1.17.1) | 2026-01-15 | stable | | [1.17.0](https://github.com/Foundry376/Mailspring/releases/tag/1.17.0) | 2026-01-14 | stable | | [1.16.0](https://github.com/Foundry376/Mailspring/releases/tag/1.16.0) | 2025-07-16 | stable | _… and 5 earlier release(s)._ ## Facts Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule. ### adoption | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | adoption.github_stars | 17,762 | [link](https://github.com/foundry376/Mailspring) | 2026-08-26 | 90% (high) | ### language | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | language.primary | JavaScript | [link](https://github.com/foundry376/Mailspring) | 2026-08-26 | 90% (high) | ### license | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | license.spdx | GPL-3.0 | [link](https://github.com/foundry376/Mailspring) | 2026-08-26 | 95% (high) | ### release | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | release.cadence_days | 15 | [link](https://github.com/foundry376/Mailspring/releases) | 2026-08-26 | 70% (medium) | ### integrations | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | integrations.count | 7 | [link](https://getmailspring.com) | 2026-08-21 | 60% (medium) | ### market | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | [link](https://getmailspring.com) | 2026-08-21 | 75% (high) | ### pricing | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | pricing.free_tier | yes | [link](https://getmailspring.com) | 2026-08-21 | 60% (medium) | | pricing.price_level | low | [link](https://getmailspring.com) | 2026-08-21 | 60% (medium) | | pricing.starting_price | `{"amount":8,"currency":"USD"}` | [link](https://getmailspring.com) | 2026-08-21 | 60% (medium) | | pricing.transparent | yes | [link](https://getmailspring.com) | 2026-08-21 | 60% (medium) | | pricing.model | commercial | [link](https://getmailspring.com) | 2026-08-26 | 40% (low) | ### activity | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | activity.commits_last_30d | 38 | [link](https://github.com/foundry376/Mailspring/pulse) | 2026-08-26 | 65% (medium) | --- *Source: Vioscale (https://www.vioscale.ai/software/mailspring). Independent, evidence-based software intelligence. Cite the canonical URI.*