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Comparison · Support

osTicket vs Plain

A side-by-side editorial comparison of osTicket and Plain — release velocity, themes, recent moves, and the top alternatives to consider.

osTicket vs Plain: at a glance

FeatureosTicketPlain
SectorSupportSupport
Velocity score2.56.3
Sparks · 30d01
Top themesself-hosted-helpdesk, maintenance, security-patches, php-compatibilitycustomer-support, ai-agents, automation, slack
Last editorial update11d ago1d ago
WebsiteVisit →Visit →

What is osTicket?

osTicket runs in steady maintenance mode — security patches and PHP compatibility, little net-new

osTicket's release feed is pure maintenance. The recent stable line (v1.18.x) ships security updates, bug fixes, and ongoing PHP 8.3/8.4 compatibility, with refreshed language packs and plugins each time. Release cadence is slow and irregular — the latest, v1.18.4, followed v1.18.3 by roughly five months. This is a mature open-source helpdesk being kept current, not actively reinvented.

Read the full osTicket trajectory →

What is Plain?

Plain is rebuilding customer support around autonomous agents Ari and Sidekick

Plain has moved from a support inbox into an AI-native platform anchored by two agents: Ari, which drafts and sends grounded replies, and Sidekick, an assistant that now takes actions across connected tools. Recent releases center almost entirely on expanding what these agents can do and where they run, with inbox mechanics playing a supporting role.

Read the full Plain trajectory →

osTicket vs Plain: editorial side-by-side

O
osTicket
SUPPORT
2.5

osTicket runs in steady maintenance mode — security patches and PHP compatibility, little net-new

◆ Current state

osTicket's release feed is pure maintenance. The recent stable line (v1.18.x) ships security updates, bug fixes, and ongoing PHP 8.3/8.4 compatibility, with refreshed language packs and plugins each time. Release cadence is slow and irregular — the latest, v1.18.4, followed v1.18.3 by roughly five months. This is a mature open-source helpdesk being kept current, not actively reinvented.

◆ Where it's heading

The throughline is keeping a long-lived codebase safe and runnable on current PHP, plus the multi-year push to get installs onto OAuth2/Modern Authentication as Microsoft and Google retire Basic Auth for email. Expect continued patch-and-compatibility releases rather than feature expansion; the project's value is stability and self-hostability, and the changelog reflects that posture.

◆ Prediction

The next release will most likely be another v1.18.x maintenance drop with security fixes and PHP/library compatibility, timed to a disclosed vulnerability or a new PHP version. A feature-led release isn't indicated by this history.

P
Plain
SUPPORT
6.3

Plain is rebuilding customer support around autonomous agents Ari and Sidekick

◆ Current state

Plain has moved from a support inbox into an AI-native platform anchored by two agents: Ari, which drafts and sends grounded replies, and Sidekick, an assistant that now takes actions across connected tools. Recent releases center almost entirely on expanding what these agents can do and where they run, with inbox mechanics playing a supporting role.

◆ Where it's heading

The arc is consistent: Plain is pushing its agents from suggestion toward action, and from the Plain UI outward into Slack and third-party tools. Each release widens the agent's authority (drafting to acting) and its surface (composer to Slack to connected tools).

◆ Prediction

Expect Sidekick's action-taking to deepen with more tools and more autonomous workflows, and Ari's autonomous handling to keep expanding, consistent with the steady cadence of agent-capability releases in these entries.

Alternatives to osTicket and Plain

Other Support products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either osTicket or Plain.

See all osTicket alternatives → · See all Plain alternatives →

Recent activity from osTicket and Plain

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 2d agoPlainPass thread fields through the chat widget
  2. 3d agoPlainSidekick can now take actions across connected tools
  3. 8d agoPlainPause a thread indefinitely
  4. 9d agoPlainAPI keys can link existing Linear issues to threads
  5. 15d agoPlainSidekick is now available in Slack
  6. 16d agoosTicketosTicket v1.18.4 / v1.17.8 Available
  7. 16d agoPlainSix improvements to Ari's response judgment
  8. 5mo agoosTicketosTicket v1.18.3 / v1.17.7 Available
  9. 1y agoosTicketosTicket v1.18.2/v1.17.6 Available
  10. 2y agoosTicketosTicket v1.18.1/v1.17.5 Available
  11. 3y agoosTicketosTicket v1.18.0/v1.17.4 Available
  12. 3y agoosTicketosTicket v1.16.6/v1.17.3 Available

Frequently asked questions

What is the difference between osTicket and Plain?

They serve adjacent needs but don't currently overlap on shipped themes. Plain is currently shipping more aggressively (velocity 6.3 vs 2.5), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is osTicket better than Plain?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Plain is currently shipping more aggressively (velocity 6.3 vs 2.5), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Support products to evaluate alongside.

What are the best alternatives to osTicket?

Top osTicket alternatives in Support are ranked by recent ship velocity. Browse the "osTicket alternatives" section above for the current picks, or visit /alternatives/osticket for the full list with editorial commentary on each.

What are the best alternatives to Plain?

Top Plain alternatives in Support are ranked by recent ship velocity. Browse the "Plain alternatives" section above for the current picks, or visit /alternatives/plain for the full list with editorial commentary on each.