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 listed under Enterprise; MCP not documented on reviewed pages | 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 add-on is announced at $300/mo but labeled Coming Soon (not purchasable as of 2026-09-14) | Free plan; Pro 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 September 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, with evidence to review
- 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 pricing page directs API inquiries to Enterprise sales; MCP is not documented on the reviewed pages
- 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 add-on is announced at $300/mo but labeled Coming Soon. Every tier is metered by daily chat messages. Figures read from grantable.co/pricing on 2026-09-14.
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 also researches funders and deadlines, and schedules opportunity scans); 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 includes prospecting, writing, and a dashboard with daily chat limits; GrantSonar shows matched grants before you upgrade.
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 still labeled Coming Soon in September 2026. That status applies to the Agency Hub add-on, not to Grantable’s existing prospecting and writing capabilities.
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 September 2026
- GrantSonar pricing