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Comparison · EdTech
Blockly vs Perusall
A side-by-side editorial comparison of Blockly and Perusall — release velocity, themes, recent moves, and the top alternatives to consider.
Blockly vs Perusall: at a glance
| Feature | Blockly | Perusall |
|---|---|---|
| Sector | EdTech | EdTech |
| Velocity score | 5.0 | 0.0 |
| Sparks · 30d | 0 | 0 |
| Top themes | block-editor, accessibility, keyboard-navigation, performance-fixes | edtech, social learning, peer review, lms |
| Last editorial update | 1h ago | 3mo ago |
| Website | Visit → | — |
What is Blockly?
Post-v13 cleanup: three beta tags in one evening, two of them carrying nothing at all.
Blockly is servicing the v13 line it opened in June with keyboard navigation and screenreader support on by default. The 13.2.2 beta train tagged three times in under three hours, but only beta.0 carries changes — an undo-stack corruption fix, a nested-tree traversal speedup, and focus restoration on toast dismissal. beta.1 and beta.2 record an empty commit range.
What is Perusall?
Perusall refreshes its UI to absorb a year of expanded assignment types and instructor controls.
Perusall is a social-learning platform centered on collaborative annotation of course materials. The January 2026 release is a UI refresh — a single simplified sidebar, reorganized Settings, more flexible grouping — that consolidates the navigation around the broader feature set built up over 2024 and 2025. That earlier work pushed Perusall well beyond annotation: peer review went from new in mid-2024 to substantially refined a year later, with new assignment types (Fishbowl, instructor review), differentiated assignments, granular TA permissions, and reusable scoring templates.
Blockly vs Perusall: editorial side-by-side
Blockly
5.0EDTECH
Post-v13 cleanup: three beta tags in one evening, two of them carrying nothing at all.
◆ Current state
Blockly is servicing the v13 line it opened in June with keyboard navigation and screenreader support on by default. The 13.2.2 beta train tagged three times in under three hours, but only beta.0 carries changes — an undo-stack corruption fix, a nested-tree traversal speedup, and focus restoration on toast dismissal. beta.1 and beta.2 record an empty commit range.
◆ Where it's heading
The work since v13.0.0 is consolidation around focus, rendering, and performance rather than new surface area — insertion markers rewritten for memory, connection-database updates sped up, field labels made translatable. Accessibility remains the organizing concern, now expressed as correctness fixes in the machinery that shipped rather than new capability. The rapid empty beta tags suggest release automation firing on non-code commits.
◆ Prediction
Expect a 13.2.2 final shortly, continuing the pattern of small fix batches on the v13 line. Nothing in these entries points to a v14 or a new feature theme.
Perusall
0.0EDTECH
Perusall refreshes its UI to absorb a year of expanded assignment types and instructor controls.
◆ Current state
Perusall is a social-learning platform centered on collaborative annotation of course materials. The January 2026 release is a UI refresh — a single simplified sidebar, reorganized Settings, more flexible grouping — that consolidates the navigation around the broader feature set built up over 2024 and 2025. That earlier work pushed Perusall well beyond annotation: peer review went from new in mid-2024 to substantially refined a year later, with new assignment types (Fishbowl, instructor review), differentiated assignments, granular TA permissions, and reusable scoring templates.
◆ Where it's heading
The product is evolving from an annotation tool into a course-assignment platform with instructor operations baked in. Peer review was the wedge in 2024; 2025 widened the assignment catalogue and added the kinds of controls (TA permissions, reusable rubrics, late-submission handling) instructors need to actually run those assignments at scale. The 2026 UI refresh signals consolidation — the team is making the broader catalogue discoverable rather than adding new features for now.
◆ Prediction
Based on the visible cadence — annual major batches around the start of the academic year — the next observable move is likely further refinement of peer review workflow flexibility, since that's been the most consistently iterated surface across the input entries.
Alternatives to Blockly and Perusall
Other EdTech 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 Blockly or Perusall.
Code.org
The rebrand is finishing while a challenge-evaluation subsystem quietly assembles.
Whatfix
Whatfix's blog has narrowed onto workflow drift and governance — a repositioning in progress
Kahoot!
Kahoot's public feed is classroom storytelling and partner content, not product releases
Scribe
Scribe is grounding its Optimize agent in company context while widening how docs get captured.
Nearpod
A near-dormant blog wakes up for back-to-school with a real AI authoring release.
See all Blockly alternatives → · See all Perusall alternatives →
Recent activity from Blockly and Perusall
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2h agoBlockly13.2.2-beta.2 tagged with no recorded changes
- 4h agoBlockly13.2.2-beta.1 tagged with no recorded changes
- 5h agoBlockly13.2.2-beta.0 fixes undo-stack clobbering and nested-tree performance
- 7d agoBlockly13.2.1 patches memory leaks and RTL rendering
- 15d agoBlockly13.2.0 rewrites insertion markers and adds translated field labels
- 1mo agoBlockly13.1.1 fixes delete-area hit testing at non-default zoom
- 7mo agoPerusallSimplified UI, more flexible grouping, and more ⚡
- 1y agoPerusallFishbowl assignments and instructor review assignments ⚡
- 1y agoPerusallPeer review workflow improvements
- 1y agoPerusallReusable scoring templates and rubrics
- 1y agoPerusallFlexible permissions for TAs
- 1y agoPerusallPeer review assignments
Frequently asked questions
What is the difference between Blockly and Perusall?
They serve adjacent needs but don't currently overlap on shipped themes. Blockly is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 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 Blockly better than Perusall?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Blockly is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other EdTech products to evaluate alongside.
What are the best alternatives to Blockly?
Top Blockly alternatives in EdTech are ranked by recent ship velocity. Browse the "Blockly alternatives" section above for the current picks, or visit /alternatives/blockly for the full list with editorial commentary on each.
What are the best alternatives to Perusall?
Top Perusall alternatives in EdTech are ranked by recent ship velocity. Browse the "Perusall alternatives" section above for the current picks, or visit /alternatives/perusall for the full list with editorial commentary on each.