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Comparison · Collab
Contractbook vs Double
A side-by-side editorial comparison of Contractbook and Double — release velocity, themes, recent moves, and the top alternatives to consider.
Contractbook vs Double: at a glance
| Feature | Contractbook | Double |
|---|---|---|
| Sector | Collab | Collab |
| Velocity score | 5.0 | 6.3 |
| Sparks · 30d | 0 | 1 |
| Top themes | contract-automation, ai-extraction, admin-controls, clm | ai-accounting, ask-double, ai-agents, mcp-integration |
| Last editorial update | 1mo ago | 1d ago |
| Website | — | Visit → |
What is Contractbook?
Contractbook hands the AI's extraction prompts over to the customer
Contractbook publishes short, emoji-headed notes, most of them arriving in same-day batches. The August 3 batch covered admin permission maps across spaces, OTP two-factor at login, calculations inside forms, a rebuilt search results page, and a new model behind AI data extraction. This release opens the default data fields themselves: the prompts behind each AI-detected field can be rewritten or renamed per contract type.
What is Double?
Double shifts AI economics: 93%-cheaper Standard tier and Claude Opus 5 Expert mode
Double ships on a weekly cadence with broad scope each cycle — Ask Double gains new capabilities (CSV/PDF bank imports, voice input, accruals from transactions), accounting workflows deepen (interactive financial statements across all three statements, revenue share allocations, loan receivables), and the AI model economics shift materially with the September 10 Standard/Auto/Expert tiering. The product ships Scale-tier and standard features simultaneously, signaling active enterprise expansion alongside the core SMB base.
Contractbook vs Double: editorial side-by-side
Contractbook
5.0COLLAB
Contractbook hands the AI's extraction prompts over to the customer
◆ Current state
Contractbook publishes short, emoji-headed notes, most of them arriving in same-day batches. The August 3 batch covered admin permission maps across spaces, OTP two-factor at login, calculations inside forms, a rebuilt search results page, and a new model behind AI data extraction. This release opens the default data fields themselves: the prompts behind each AI-detected field can be rewritten or renamed per contract type.
◆ Where it's heading
The AI extraction layer has been treated as a black box that Contractbook tunes and customers accept. Editable prompts break that — accuracy on a customer's own contract vocabulary becomes something they adjust rather than file a ticket about. It fits the wider pattern of the last few releases, where admin surfaces (space access maps, group permissions, contract-type management) are being built so companies can configure what used to be product defaults.
◆ Prediction
Once prompts are editable per contract type, per-field extraction quality becomes visible and arguable, so expect some form of confidence indicator or review step on extracted data next.
Double
6.3COLLAB
Double shifts AI economics: 93%-cheaper Standard tier and Claude Opus 5 Expert mode
◆ Current state
Double ships on a weekly cadence with broad scope each cycle — Ask Double gains new capabilities (CSV/PDF bank imports, voice input, accruals from transactions), accounting workflows deepen (interactive financial statements across all three statements, revenue share allocations, loan receivables), and the AI model economics shift materially with the September 10 Standard/Auto/Expert tiering. The product ships Scale-tier and standard features simultaneously, signaling active enterprise expansion alongside the core SMB base.
◆ Where it's heading
The AI Agents private beta — scheduled automation of recurring accounting tasks across clients — is the clearest signal of where Double is heading: not AI-assisted closes but AI-executed ones, with human handoff on review steps. The Double MCP surface gains new actions each week, and the interactive financial statement suite is now complete with Cash Flow, setting the stage for cross-statement analysis. Model tiering changes the adoption math for heavy users, which could accelerate the active-usage cohort.
◆ Prediction
A general release of the AI Agents feature (currently private beta, announced in August) is the most significant move in the pipeline. More Scale features converting to standard tier is the growth pattern visible across the last 6 weeks of releases.
Alternatives to Contractbook 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 Contractbook or Double.
Wiki.js
Wiki.js 3 beta adds Excalidraw live collaboration and SCIM — v3 production release getting close.
Wiki.js
Wiki.js 3.0 beta is building toward enterprise with real-time collaboration, SCIM, and expanding editor formats.
SiYuan
SiYuan enters a rapid alpha sprint, shipping calendar upgrades, transitive backlinks, and export extensions daily.
Happeo
Happeo is doubling down on intranet SEO content as its primary distribution channel for the mid-market.
Teable
Teable ships connected-app event triggers for automations, deepening its no-code workflow orchestration play.
See all Contractbook alternatives → · See all Double alternatives →
Recent activity from Contractbook and Double
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoDoubleSeptember 24, 2026
- 9d agoDoubleSeptember 17, 2026
- 16d agoDoubleSeptember 10, 2026 ⚡
- 23d agoDoubleSeptember 3, 2026
- 1mo agoDoubleAugust 27, 2026
- 1mo agoContractbook✏️ Editable default data fields
- 1mo agoDoubleAugust 20, 2026
- 1mo agoContractbook🗺️ Spaces access
- 1mo agoContractbook🔎 Search results revamp
- 1mo agoContractbook✨ AI extraction model upgrade
- 1mo agoContractbook🖼️ AI upload: contract types
- 1mo agoContractbook🔑 OTP two-factor authentication
Frequently asked questions
What is the difference between Contractbook and Double?
They serve adjacent needs but don't currently overlap on shipped themes. Double 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 Contractbook 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 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 Contractbook?
Top Contractbook alternatives in Collab are ranked by recent ship velocity. Browse the "Contractbook alternatives" section above for the current picks, or visit /alternatives/contractbook 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.