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Comparison · Collab
Jellyfin vs Double
A side-by-side editorial comparison of Jellyfin and Double — release velocity, themes, recent moves, and the top alternatives to consider.
Jellyfin vs Double: at a glance
What is Jellyfin?
Jellyfin drops the 10. prefix and puts 12.0 through a three-candidate preview.
The project is running a 12.0 release candidate series alongside a 10.11.x stable line that has thinned to single-fix releases. The RC notes carry one substantive announcement: versioning drops the leading 10., so 10.11.x becomes 12.x, on the reasoning that the hard API break the old scheme anticipated is no longer planned. The stable line's last two releases were three GHSA security fixes and a UserManager lock helper.
What is Double?
A bookkeeping platform absorbing one accounting task a week into its chat agent.
Double is accounting software for bookkeeping firms, built around QuickBooks Online and Sage, and almost every weekly release now attaches something new to Ask Double, its chat agent. Since late May the agent has learned to post batches of transactions from a single file, create and edit transactions from plain language, save reusable workflows as shareable skills, build workpapers by tying balances to supporting documents, import accruals, create and copy client metrics across an entire book, edit spreadsheets live in the chat, and take voice input. The newest release lets it reach outside Double entirely, into Slack, Notion, and HubSpot.
Jellyfin vs Double: editorial side-by-side
Jellyfin
2.5COLLAB
Jellyfin drops the 10. prefix and puts 12.0 through a three-candidate preview.
◆ Current state
The project is running a 12.0 release candidate series alongside a 10.11.x stable line that has thinned to single-fix releases. The RC notes carry one substantive announcement: versioning drops the leading 10., so 10.11.x becomes 12.x, on the reasoning that the hard API break the old scheme anticipated is no longer planned. The stable line's last two releases were three GHSA security fixes and a UserManager lock helper.
◆ Where it's heading
Renumbering is the visible end of a decision made about the API — the project no longer expects the clean break that 10.x was holding a slot for, so the version number stops reserving one. Meanwhile 10.11.x is in wind-down posture, taking security backports and concurrency fixes rather than features, which is where the 12.0 work has clearly gone. The RC bodies themselves carry no feature detail, pointing at the forums instead.
◆ Prediction
Expect 12.0 to reach stable after the RC turnaround lengthens, with 10.11.x limited to security backports from that point; the entries do not say what 12.0 contains.
Double
6.3COLLAB
A bookkeeping platform absorbing one accounting task a week into its chat agent.
◆ Current state
Double is accounting software for bookkeeping firms, built around QuickBooks Online and Sage, and almost every weekly release now attaches something new to Ask Double, its chat agent. Since late May the agent has learned to post batches of transactions from a single file, create and edit transactions from plain language, save reusable workflows as shareable skills, build workpapers by tying balances to supporting documents, import accruals, create and copy client metrics across an entire book, edit spreadsheets live in the chat, and take voice input. The newest release lets it reach outside Double entirely, into Slack, Notion, and HubSpot.
◆ Where it's heading
The pattern is unusually legible: each week takes one task a bookkeeper does by hand and moves it into the agent, always with a human approval step before anything posts. What changed with Connections is the boundary — until now Ask Double reasoned over Double's own data, and reaching a Slack thread or a CRM record makes it an assistant over the firm's whole context. The read/write tool separation shipped alongside it is the tell: the product is being designed for a profession where an unreviewed write is a compliance problem, not a bug. The Scale-tier and AI-credit gating throughout shows the agent is also the upsell.
◆ Prediction
Connections launched with read and write separated and writes gated on approval; the open question is when a firm can grant standing write permission for routine cases, since approval-per-action is the thing that caps how much work the agent can actually absorb.
Alternatives to Jellyfin and Double
Other Collab 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 Jellyfin or Double.
PhotoPrism
PhotoPrism swapped in an ONNX vision pipeline, then opened the library to 360° media at 16K.
Immich
Immich is four release candidates into v3 with every feature note published somewhere else.
EGroupware
Two branches, one deadline: 23.1 security coverage ends August 15th and 26.x is the only exit.
SOGo
SOGo's 5.12 line has become a CVE conveyor belt while the team's attention sits on SOGo 6.
File Browser
File Browser is shutting down — the repo archives on 2026-09-01 and no security fixes follow.
See all Jellyfin alternatives → · See all Double alternatives →
Recent activity from Jellyfin and Double
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoDoubleConnections: Ask Double reaches Slack, Notion, and HubSpot ⚡
- 10d agoDoubleVoice input for Ask Double
- 11d agoJellyfinThird 12.0 candidate; version scheme drops the 10. prefix
- 17d agoDoubleMetrics created and copied across clients via Ask Double
- 24d agoDoubleAI workpapers and accrual imports in Ask Double
- 1mo agoDoubleLive spreadsheet editing inside Ask Double
- 1mo agoJellyfinSecond 12.0 preview candidate
- 1mo agoDoubleAsk Double creates transactions from documents or descriptions
- 1mo agoJellyfinFirst 12.0 release candidate opens the preview series
- 1mo agoJellyfinSingle lock-helper fix for UserManager
- 2mo agoJellyfinThree security advisories fixed on the stable line
Frequently asked questions
What is the difference between Jellyfin and Double?
They serve adjacent needs but don't currently overlap on shipped themes. Double 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 Jellyfin better than Double?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Double 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 Collab products to evaluate alongside.
What are the best alternatives to Jellyfin?
Top Jellyfin alternatives in Collab are ranked by recent ship velocity. Browse the "Jellyfin alternatives" section above for the current picks, or visit /alternatives/jellyfin for the full list with editorial commentary on each.
What are the best alternatives to Double?
Top Double alternatives in Collab are ranked by recent ship velocity. Browse the "Double alternatives" section above for the current picks, or visit /alternatives/double for the full list with editorial commentary on each.