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Comparison · Collab
Capacities vs Readwise
A side-by-side editorial comparison of Capacities and Readwise — release velocity, themes, recent moves, and the top alternatives to consider.
Capacities vs Readwise: at a glance
What is Capacities?
Capacities rebuilds its tablet app and moves audio recording down to Pro.
Capacities ships a named release about monthly. November's rebuilds the iPad and Android tablet app, moves audio recording and analysis into the Pro plan, and starts reminders in early testing for Believer subscribers. October added whiteboards and a global graph view, and September brought audio transcription and AI chats that can edit objects.
What is Readwise?
Readwise launches Books, its own ebook store and reading app, a week after unbundling.
Readwise now sells three products. A week after splitting Reader and Highlights into separate plans, it launched Readwise Books on October 30: an iOS and Android ebook store and reading app stocked by the major publishers, with reading sessions, following other readers, and Kindle and Goodreads imports. The same release added 13 Books tools to the Readwise MCP server, moved podcast transcripts onto the YouTube cleanup pipeline, and lets the Reader API set reading progress.
Capacities vs Readwise: editorial side-by-side
Capacities
5.0COLLAB
Capacities rebuilds its tablet app and moves audio recording down to Pro.
◆ Current state
Capacities ships a named release about monthly. November's rebuilds the iPad and Android tablet app, moves audio recording and analysis into the Pro plan, and starts reminders in early testing for Believer subscribers. October added whiteboards and a global graph view, and September brought audio transcription and AI chats that can edit objects.
◆ Where it's heading
Capacities keeps a pattern of trialling features with Believers and then moving them down to Pro, as it did with bulk import, image analysis and now audio. The tablet rebuild suggests more attention to devices beyond desktop.
◆ Prediction
Reminders will likely leave Believer-only testing in a coming monthly release and move toward Pro, following the audio path.
Readwise
6.3COLLAB
Readwise launches Books, its own ebook store and reading app, a week after unbundling.
◆ Current state
Readwise now sells three products. A week after splitting Reader and Highlights into separate plans, it launched Readwise Books on October 30: an iOS and Android ebook store and reading app stocked by the major publishers, with reading sessions, following other readers, and Kindle and Goodreads imports. The same release added 13 Books tools to the Readwise MCP server, moved podcast transcripts onto the YouTube cleanup pipeline, and lets the Reader API set reading progress.
◆ Where it's heading
Readwise is moving from a layer on top of other people's reading apps to owning the purchase and the reading itself. The unbundle, the free Books app and the shared MCP server point to separate entry products that all feed the same account. Reader keeps its weekly cadence of TTS, transcript and parsing work underneath.
◆ Prediction
Expect weekly Books fixes and Kindle-import work, and a move from invite-only to open signup if the store holds up.
Alternatives to Capacities and Readwise
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 Capacities or Readwise.
Nextcloud
Nextcloud's November patches lean on preview speed and sharing fixes across three branches.
Mattermost
Mattermost v12.1 puts bots and burn-after-reading messages under the same access rules.
Asana
Asana lets Division admins run their own custom roles, on top Enterprise plans only.
Double
Double turns a recorded Chrome session into an agent that repeats the task.
SiYuan
SiYuan 3.8.11 alphas add freeform mind maps and plugin snapshots right after 3.8.10.
See all Capacities alternatives → · See all Readwise alternatives →
Recent activity from Capacities and Readwise
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 7d agoReadwisePhone text width, cross-device resume and GPT-6.1 BYOK models
- 9d agoCapacitiesA rebuilt tablet app, audio in Pro, and reminders in early testing
- 14d agoReadwiseReadwise launches Books, an ebook store and reading app ⚡
- 19d agoCapacitiesWhiteboards, global graph view, and polish on the basics
- 21d agoReadwiseReadwise unbundles: Reader-only and Highlights-only plans
- 28d agoReadwiseReader fixes: Listen start point, mobile rendering, 3D Secure
- 1mo agoReadwiseLifelike voices get steadier pacing as TTS stalls are fixed
- 1mo agoReadwiseLifelike TTS voices, reading themes and a faster Reader launch
- 1mo agoCapacitiesAudio recording and transcription, a calmer desktop, bulk property editing, and smarter AI chats
- 2mo agoCapacitiesv1.70.2: Index Card padding and calendar fixes
- 2mo agoCapacitiesPDF reader view and annotations for Believers, Version History, more calendars, and AI image generation
- 2mo agoCapacitiesCapacities Pro+ and Believer+
Frequently asked questions
What is the difference between Capacities and Readwise?
They serve adjacent needs but don't currently overlap on shipped themes. Readwise is currently shipping more aggressively (velocity 6.3 vs 5.0), 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 Capacities better than Readwise?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Readwise is currently shipping more aggressively (velocity 6.3 vs 5.0), 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 Capacities?
Top Capacities alternatives in Collab are ranked by recent ship velocity. Browse the "Capacities alternatives" section above for the current picks, or visit /alternatives/capacities for the full list with editorial commentary on each.
What are the best alternatives to Readwise?
Top Readwise alternatives in Collab are ranked by recent ship velocity. Browse the "Readwise alternatives" section above for the current picks, or visit /alternatives/readwise for the full list with editorial commentary on each.