Overview

GRIN is an influencer marketing platform for teams that want creator discovery, campaign management, analytics, and payments in one place. It is most compelling for Instagram-focused programs with a roster large enough to benefit from its higher creator limits; the free plan offers a small, no-card starting point.

GRIN was founded in 2017 and is headquartered in Sacramento, California. For more options in the category, see our Influencer Marketing Platforms list.

Key features

Creator discovery, campaign management, performance analytics, and creator payments cover several core stages of influencer work. Keeping those capabilities together can suit teams coordinating creators and campaigns in one workflow, rather than selecting a tool only for discovery or measurement.

Instagram is the supported social channel. That is a clear fit for Instagram-led campaigns, but a material limitation for teams whose programs depend on other networks.

Pricing

GRIN’s Free plan is free and includes 200 monthly credits. It requires no card and has no trial clock, but the free plan is the trial itself, not a separate ongoing tier. It is useful for a first look, though the low credit allowance makes it a poor fit for sustained creator activity.

Starter costs 200.00 USD per month, month-to-month, for 2,000 monthly credits. It is not priced per seat, which avoids a per-user price multiplier, but it has no active-creator limit stated among its included terms. It suits teams that need more credit capacity than Free without the higher tiers’ stated roster caps.

Growth costs 500.00 USD per month, month-to-month, and includes 7,500 monthly credits with up to 100 active creators. That makes it the first clearly defined fit for a sizable active roster. Scale costs 1000.00 USD per month for 20,000 monthly credits and up to 250 active creators, while Complete costs 1500.00 USD per month for 30,000 monthly credits and up to 500 active creators. Both are month-to-month and not priced per seat; their higher costs are justified chiefly for programs that can use the additional credits and creator capacity.

Platforms

GRIN is available on web, iOS, and Android. That gives teams desktop and mobile access, while the confirmed social-channel support remains Instagram.

Who it's for

GRIN makes the strongest case for teams running Instagram creator campaigns that need discovery, coordination, performance analytics, and payments together. The escalating credit allowances and active-creator ceilings give growing programs room to scale across paid tiers. It is less suitable for teams that require confirmed support for social channels beyond Instagram or only need a narrow, single-purpose influencer tool.

Pros and cons

Pros: Discovery, campaign management, analytics, and payments sit in one platform, covering several distinct parts of creator work.
Pros: The free plan needs no card and has no trial clock, so a first evaluation does not require a paid commitment.
Pros: Paid plans are month-to-month and not priced per seat; higher tiers also spell out active-creator limits of 100, 250, and 500.
Cons: The free plan is the trial itself and provides only 200 monthly credits, limiting its usefulness for ongoing work.
Cons: Instagram is the only supported social channel identified, which narrows its fit for multi-network campaigns.
Cons: The paid tiers rise from 200.00 USD per month to 1500.00 USD per month, so larger credit and creator allowances come with a substantial price step-up.

Alternatives

Choose KALO IQ if you want a free plan with no credit card or time limit and discovery access to 100M+ hand-verified US creators, basic profile previews, and core filters. Janney AI is another freemium option, with a free plan offering 10 one-time credits and a 99.00 USD per month Starter tier that includes 300 monthly credits and up to five seats.

Intellifluence may suit a smaller trial: its free plan is for testing influencer marketing with flat-rate influencer services and includes one user, one campaign, and five marketplace listings. Consider Billo for creator video ads, with a free tier of eight AI scripts and three AI mashup credits per month, or a Video ads plan priced from 99.00 USD per video.

Elev8or offers a free forever plan with 20 one-time credits, one workspace, one active campaign, and one team member, making it a defined low-cost alternative for a tightly limited setup. Infloxy has a free plan with 10 AI credits per month, 10 creators, and one campaign, among other caps; it may be preferable when that smaller allowance is sufficient.

Kleos is an alternative with a free forever plan in EUR and unlimited creator records. Kleepa offers free browsing and search across 100,000+ verified creators, with shortlists and dashboard access; its free tier is geared to exploration before upgrading to post jobs, book, and pay.

Verdict

Choose GRIN if your team runs Instagram-focused creator campaigns and wants discovery, campaign management, analytics, and payments under one roof, with monthly plans that scale to hundreds of active creators. Look elsewhere if multi-channel support is essential or if the monthly credit and roster capacity you need does not justify the paid-tier cost.

	GRIN	Trendupp
Free plan	Yes	Yes
Free trial	Yes
Paid from	$200/mo	Free
Platforms	Web, iOS, Android	iOS, Web
Free plan	Yes	Yes
Paid from	$200/mo
Creator discovery	Yes	Yes
Campaign management	Yes	Yes
Performance analytics	Yes
Supported social channels	instagram
Creator payments	Yes	Yes

GRIN vs Trendupp

GRIN

Trendupp