8 comment tools for UGC agencies with busy accounts (2026)

When the creators on your roster each pull in thousands of comments a day, you need a tool that answers comments and DMs on every platform they post to, at a price that doesn't climb with each new commenter. BetterSocials is our pick for UGC and ambassador agencies: an AI social media manager with one inbox for six platforms, keyword DMs and AI replies in each creator's voice, from $29 a month for four accounts. Manychat suits agencies that build Instagram funnels in a flow builder, and Sprout Social suits large in-house teams with a per-seat budget.

Updated November 7, 2026.

Which comment tool handles thousands of replies a day for an agency?

BetterSocials shipped an Agency plan on November 5, 2026. Agencies running creator programs now have a flat per-creator option next to the per-contact and per-seat tools they already know.

Volume is the problem every tool here is trying to solve. A creator reel that takes off can collect 3,000 keyword comments, and each one is a person asking for a link or a code.

How we picked

We judged each tool on four things an agency feels at volume: how many accounts and creators it holds, which platforms it reads, whether its AI writes replies in the account owner's voice, and what a viral month does to the bill.

Instagram's limits apply to every tool on the official API. Meta caps private replies to comments at 750 calls per hour per Instagram professional account, and automation platforms pace closer to 200 automated DMs an hour. At 200 an hour, 3,000 keyword comments take 15 hours to clear (3,000 / 200 = 15). A comment still waiting when its 7-day private reply window closes gets no DM.

We read competitor prices on each vendor's pricing page: Sprout Social, Hootsuite and Agorapulse in July 2026, CreatorFlow, LinkDM and InstantDM in September 2026, and Manychat in October 2026.

BetterSocials: best for creators and agencies whose comments and DMs bring in customers

BetterSocials puts Instagram, Facebook, TikTok, YouTube, Threads and LinkedIn Company Page comments in one inbox, with Instagram, Facebook and TikTok DMs beside them. A keyword in an Instagram or Facebook comment sends the person a DM with your link. On TikTok, YouTube, Threads and LinkedIn Company Pages the keyword posts a public reply with the link instead.

The AI replies to comments and DMs in the owner's voice, built from their past replies and plain-language rules they write. On Draft for me, nothing posts until someone approves it. On Reply in my voice, everyday comments get an answer 1 to 5 minutes after they arrive, and a DM gets one in about a minute.

Questions the rules don't cover wait in Needs reply. That keeps a viral post from turning into a guessing game.

The Agency plan is $29 per creator a month and starts with a conversation, not a self-serve checkout. Each creator keeps their own account with four social accounts and 1,000 AI credits a month, and every creator added gets a 14-day free trial. Logins for the agency's own team are free.

Keyword templates are the part built for ambassador programs. You write a keyword once (the word, the reply, the DM, the link) and apply it to every creator, and {code} fills in that creator's own promo code. The agency sees keyword triggers, DMs sent, links clicked and click rate per creator, but never a creator's messages or inbox.

For a single brand or page, Creator is $29 a month for four accounts, Pro is $49 a month for six, and Team is $99 a month for twelve with unlimited teammates. Every plan has unlimited contacts and unlimited keyword automations.

Manychat: best for Instagram funnels built in a flow builder

Manychat is the pick when your campaigns need multi-step flows, or channels like WhatsApp.

Manychat bills by active contact. Pro is $39 a month with 2,500 active contacts, and each extra contact costs $0.05 on Pro, billed monthly. A creator post that pulls in thousands of new commenters raises that bill in the same month.

Manychat's channels are Instagram, Messenger, WhatsApp and TikTok, while BetterSocials also answers YouTube comments in the same inbox. We covered Manychat's TikTok side in Can ManyChat send a DM from a TikTok comment in 2026?.

Sprout Social: best for large social teams with a per-seat budget

Sprout Social fits the in-house team at a big brand more than a lean agency. Its inbox starts on Standard at $199 per seat a month, billed annually.

For an agency paying per seat across many people, that price adds up fast.

Hootsuite: best for teams already publishing through Hootsuite

If your team already schedules in Hootsuite, its inbox comes with the same plan. The inbox starts on Standard at $99 per user a month, billed annually.

Hootsuite's inbox does not include YouTube comments. Creators with big YouTube channels will need another place to answer them.

Agorapulse: best for agencies that need client approvals

Agorapulse pairs a real inbox with scheduling, simple approval workflows and shared calendars, which suits an agency that runs posts past clients. It costs $79 per user a month on annual billing.

Per-user pricing is the tradeoff. Agorapulse makes the most sense when a small team answers for a few large accounts.

CreatorFlow: best for Instagram-only creators on a small budget

CreatorFlow sends template DMs on Instagram at a small-creator price. Pro is $15 a month ($12 billed annually) for 5,000 DMs and two accounts, and Growth is $30 a month ($24 billed annually) for 10,000 DMs, five accounts and five seats.

CreatorFlow is Instagram only, with template replies and no AI replies. At a few thousand comments a day, a five-account cap fills up quickly.

LinkDM: best for simple keyword DM campaigns on Instagram and Facebook

LinkDM gives a creator 1,000 free DMs a month, then Pro at $19 for three Instagram accounts and 25,000 DMs. Platinum+ is $99.

LinkDM sends keyword and template replies with no AI replies. That fits a one-off campaign with a single code.

InstantDM: best for running many Instagram accounts at high DM volume

InstantDM is built for DM volume. Its Multi Pro plan covers up to 10 Instagram accounts and 300,000 DM automations per account a month, with no hourly limit set by InstantDM itself (read November 2026).

Paid plans start at $9.99, after a free tier of 500 credits a month. InstantDM covers Instagram and Facebook, and its AI agents run on ChatGPT, Claude or Gemini rather than a voice trained on the account owner's replies.

How the 8 comment tools compare

The prices below come from each vendor's pricing page on the dates given in how we picked.

The split is per contact, per seat or flat. Manychat charges by the people who talk to you, Sprout Social, Hootsuite and Agorapulse charge by the people who answer, and BetterSocials charges by account or by creator.

Whatever you pick, public comment replies have no time limit. The rules for pairing one with a private message are in Comment-to-DM with a public reply: 5 Instagram rules in 2026.