GrantSonar vs Grantable
Grantable meters every plan by chat messages per day. GrantSonar doesn't.
Grantable's V3 is a collaborative AI writing workspace with graph-based funder research. GrantSonar starts from a different place: live, currently-open opportunities checked against your eligibility — then fit scoring, AI funder research, a draft grounded in the actual opportunity, and a 3-model review before you submit. AI is unmetered on every paid plan.
Grantable: chat-first AI grant workspace
Grantable V3 pairs an AI writing workspace with graph-based funder discovery (GrantGraph) and deep collaboration — roles, anchored comments, versioning and kanban. Every tier, free and paid, is metered by chat messages per day: 5 on Free, 50 on Starter, 200 on Pro.
GrantSonar: discovery through review
GrantSonar matches your organization against live, open, eligibility-checked opportunities — then scores fit, runs AI research on the funder, drafts the application against the actual opportunity, and runs a 3-model AI review council on the draft. No daily message caps on any paid plan.
An honest side-by-side
Grantable leads on collaborative editing. GrantSonar leads on live, eligibility-checked matching and unmetered AI.
| Capability | Grantable | GrantSonar |
|---|---|---|
| Eligibility-checked matching of live opportunities | Graph-based funder discovery | Scored + AI fit judge, open grants only |
| Unmetered AI on every paid plan | Chat capped: 5 / 50 / 200 messages per day | Yes |
| Itemized 990 grant records wired into drafting | GrantGraph funding-connection graph | 4.6M itemized records |
| Multi-model AI review of drafts | Not publicly advertised | Yes |
| Free tier | 5 messages/day cap | Includes matched grants |
| Self-serve developer API + free MCP server | API via sales-led Enterprise only; no MCP documented | MCP free + anonymous; API from $29/mo |
| Multi-client work you can buy today | Agency Hub announced at $300/mo — Coming Soon | Team plan, fair use |
| Anchored comments, versioning & kanban | Their core strength | Section-anchored resolvable comments, @mentions that notify, section assignment, version history, kanban board |
| Price | Free $0 (5 chat messages/day) · Starter $50/mo (50/day) · Pro $150/mo (200/day); qualifying small 501(c)(3)s get first-year discounts; a multi-client Agency Hub is announced at $300/mo but labeled Coming Soon (not purchasable as of 2026-08-14) | Free plan; Solo from $49/mo (founding rate — $89/mo standard); Team from $119/mo (founding rate — $179/mo standard); annual billing takes roughly two months off. |
Grantable features + pricing per grantable.co/pricing, verified August 2026. Spot something out of date? Tell us: [email protected].
What Grantable does well
- Collaboration depth: roles, anchored comments, versioning and kanban
- A polished, chat-first writing workspace
If parallel editing of one proposal is genuinely your bottleneck, Grantable's collaboration machinery is the deeper of the two — GrantSonar covers review workflows with comments, mentions and assignments. The bigger difference is upstream: GrantSonar matches against live, open, eligibility-checked opportunities rather than a research graph.
Where GrantSonar is stronger
- Matching restricted to live, open, eligibility-checked opportunities — a shortlist you can act on today, not a research graph
- Unmetered AI drafting on every paid plan — Grantable caps every tier at 5–200 chat messages per day
- 4.6 million itemized 990 grant records wired into the drafting itself
- A self-serve developer API from $29/mo and a free, anonymous MCP server — Grantable’s API access is sales-led Enterprise only, with no MCP documented
- Multi-client work covered by the Team plan today — Grantable’s Agency Hub is announced at $300/mo but labeled Coming Soon
- 3-model AI review council on your draft before you submit
- Starts free with matched grants — see what you are eligible for before paying for anything
See which funders are actually a fit — free.
Know which grants are worth writing before you write them. Build a profile and see your matches.
Start freeGrantSonar vs Grantable: common questions
How much does Grantable cost?
Grantable publishes a Free tier (5 chat messages/day), Starter at $50/mo (50 messages/day) and Pro at $150/mo (200 messages/day), with first-year discounts for qualifying small 501(c)(3)s. A multi-client Agency Hub is announced at $300/mo but labeled Coming Soon. Every tier is metered by daily chat messages. Figures read from grantable.co/pricing on 2026-08-14.
What does Grantable do that GrantSonar does not?
Deeper collaborative-editing machinery — roles, anchored comments, versioning and kanban. If parallel editing of one proposal is genuinely your bottleneck, that is their strength. GrantSonar’s ground: eligibility-checked matching of live open opportunities, unmetered AI on every paid plan (Grantable caps every tier at 5–200 chat messages per day), and a 3-model review council before you submit.
What does GrantSonar do that Grantable does not?
Three things: matching restricted to live, open, eligibility-checked opportunities (Grantable’s discovery is graph research over funders — strong for prospecting, but it doesn’t verify what you can apply to today); unmetered AI on every paid plan, where Grantable caps every tier at 5–200 chat messages per day; and a 3-model review council on your draft before submission.
Can I use Grantable and GrantSonar together?
There is no integration between them — each holds its own data, so a draft moves across by copy-paste. Most teams find GrantSonar covers the full path — matching, drafting, review, pipeline — without a second subscription; Grantable’s editing depth matters if several people rewrite one proposal in parallel.
Is Grantable free?
Grantable has a real free tier, as does GrantSonar. The two free tiers do different things: Grantable’s is a writing workspace, GrantSonar’s shows the grants you match.
Which is better for an agency serving multiple nonprofits?
GrantSonar Team covers multi-client agency work today — from $119/mo with unlimited members under fair use. Grantable has announced a multi-client Agency Hub at $300/mo, but it is labeled Coming Soon and not purchasable as of August 2026. If your agency needs to find fundable opportunities per client and draft against them now, only one of the two ships that.
Does Grantable have a grant database?
Since V3, yes — Grantable ships graph-based funder discovery (GrantGraph) with a searchable funder index. The distinction is what the data does: GrantSonar matches you against live, currently-open opportunities checked against your eligibility, with 4.6 million itemized 990 grant records wired into the drafting itself — a shortlist you can act on today rather than a research graph.
Sources and last verification
Every price on this page was read from the vendor’s own published pricing on the date shown. Vendors change pricing without notice — if something here is out of date, tell us at [email protected] and we will correct it.
- Grantable published pricing — verified August 2026
- GrantSonar pricing