Plain
Plain built an autonomous support agent, and has now built the controls to trust it.
Comparison · Support
osTicket vs Sleekplan
A side-by-side editorial comparison of osTicket and Sleekplan — release velocity, themes, recent moves, and the top alternatives to consider.
osTicket vs Sleekplan: at a glance
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.
What is Sleekplan?
Sleekplan rebuilt itself around AI triage, then put the feedback board inside ChatGPT.
Releases are infrequent and arrive as monthly digests with truncated bodies, so scope has to be inferred from direction. The June 2.0 rebuild replaced the admin app and added an AI layer for handling feedback; July connects a workspace to ChatGPT, anonymizes identities on public boards, and adds @-mentions to composers. A rebuilt Chrome extension sits between them, aimed at capture from other tools.
osTicket vs Sleekplan: editorial side-by-side
osTicket
2.5SUPPORT
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.
Sleekplan
6.3SUPPORT
Sleekplan rebuilt itself around AI triage, then put the feedback board inside ChatGPT.
◆ Current state
Releases are infrequent and arrive as monthly digests with truncated bodies, so scope has to be inferred from direction. The June 2.0 rebuild replaced the admin app and added an AI layer for handling feedback; July connects a workspace to ChatGPT, anonymizes identities on public boards, and adds @-mentions to composers. A rebuilt Chrome extension sits between them, aimed at capture from other tools.
◆ Where it's heading
Both ends of the loop are being pushed out of Sleekplan's own interface. Capture moves to the browser extension where support and sales already work; management moves into the assistant a product manager already has open. The Impact Score rework and identity anonymization address the two objections that follow — that prioritization is opaque, and that public boards leak customer identity.
◆ Prediction
Expect the ChatGPT connection to be joined by other assistant surfaces on the same pattern, and the 2.0 beta to reach general availability with the AI triage layer as its headline.
Alternatives to osTicket and Sleekplan
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 Sleekplan.
Comm100
Comm100 publishes steadily about AI support — none of it is Comm100 shipping anything.
Respond.io
respond.io is layering an agent-authoring copilot and consumption billing on top of its omnichannel inbox.
Hatz AI
Hatz sells through MSPs, and its roadmap has started to serve the partner more than the end user
Knowmax
A teaser-only content feed making one argument: AI in the contact center fails on knowledge, not models.
TextMagic
A steady SEO blog on SMS basics, with the occasional ecommerce integration walkthrough.
See all osTicket alternatives → · See all Sleekplan alternatives →
Recent activity from osTicket and Sleekplan
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoSleekplanConnect a workspace to ChatGPT; anonymized public boards ⚡
- 21d agoSleekplanSleekplan for Chrome 2.0
- 1mo agoSleekplanIntroducing the New Impact Score: Transparent, Explainable, Fully Configurable
- 1mo agoSleekplanSleekplan 2.0: A Feedback Loop that Manages Itself! ⚡
- 2mo agoosTicketosTicket v1.18.4 / v1.17.8 Available
- 6mo agoSleekplanIntroducing Linear Integration 🚀 & bug fixes
- 7mo agoosTicketosTicket v1.18.3 / v1.17.7 Available
- 1y agoSleekplanEmail notification status and platform fixes
- 1y agoosTicketosTicket v1.18.2/v1.17.6 Available
- 2y agoosTicketosTicket v1.18.1/v1.17.5 Available
- 3y agoosTicketosTicket v1.18.0/v1.17.4 Available
- 3y agoosTicketosTicket v1.16.6/v1.17.3 Available
Frequently asked questions
What is the difference between osTicket and Sleekplan?
They serve adjacent needs but don't currently overlap on shipped themes. Sleekplan 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 Sleekplan?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Sleekplan 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 Sleekplan?
Top Sleekplan alternatives in Support are ranked by recent ship velocity. Browse the "Sleekplan alternatives" section above for the current picks, or visit /alternatives/sleekplan for the full list with editorial commentary on each.