Field notes
How to Write a SaaS Directory Description: Four Lengths, One System
Write your SaaS directory description once in four lengths, then adapt the first sentence per audience. Includes real character limits from 108 directory forms (160 is the most common tagline cap) and full before-and-after examples.
Write your SaaS directory descriptions once, in four lengths: a tagline (≤ 60 characters), a short description (≤ 160), a medium one (≤ 500) and a long one (1,000+). Each follows a simple formula: what it does → for whom → how it's different → proof or pricing. Then rewrite only the first sentence for each audience (developers, marketers, founders) instead of pasting identical text everywhere. Plain, specific language beats adjectives on every directory.
Below are the four lengths with formulas and examples, how to adapt them per directory, and the mistakes that get descriptions rejected.
The four lengths
Tagline (≤ 60 characters). Verb + outcome + for whom.
Turn sales calls into CRM notes automatically (46)
Used by: launch platforms (Product Hunt's limit is 60), TinyLaunch (60), list views everywhere.
Short (≤ 160 characters). Tagline + one differentiator or proof point.
Turn sales calls into CRM notes automatically. Works with Zoom, Meet and HubSpot. Notes land in the right deal within a minute.
Used by: most directories' "short description" field and meta descriptions.
Medium (≤ 500 characters). Problem → who → three features → pricing model.
Sales reps lose an hour a day writing up calls. [Product] records your Zoom or Meet calls, writes a structured summary (next steps, objections, budget), and adds it to the right HubSpot deal automatically. Built for small sales teams that don't have RevOps support. Free for 10 calls a month; paid plans from $19/user.
Used by: Product Hunt's description (max 500), launch platforms, many AI directories.
Long (1,000+ characters). Medium + use cases + integrations + what it doesn't do.
Used by: review sites (G2, Capterra, TrustRadius), SourceForge (1,000 characters), app marketplaces.
What limits directories set
We looked at the signed-out submit forms of 108 directories in AgentLaunch's catalog and read the character limits (maxlength) on their fields. Many forms set no limit at all, but where they do, the numbers explain the four lengths above:
- Taglines: 20 forms set a limit, from 80 to 300 characters. 160 was the most common (10 of 20). Product Hunt and TinyLaunch are stricter at 60.
- Descriptions: 22 forms set a limit, from 90 to 5,000 characters. 10 of 22 capped it at 500 or less, and six allowed 5,000.
- Product names: limits from 30 to 200, most often 100 or 120. TinyLaunch's 30 is the tightest we've seen on a launch platform.
So a 60-character tagline fits everywhere, a 160-character short description fits most "tagline" fields, and a 500-character medium version fits nearly half of the description fields that have a cap. The long version covers the rest.
The fields you'll be asked for
Across the same 108 forms, here's how many directories asked for each kind of field:
| Field | Directories asking (of 108) |
|---|---|
| Website URL | 77 |
| 69 | |
| Product name | 65 |
| Description | 37 |
| Category or tags | 33 |
| Tagline or short description | 30 |
| Pricing | 17 |
| Logo | 17 |
| Social links | 17 |
| Demo video | 14 |
| Screenshots | 9 |
| Discount or deal | 9 |
Many directories then ask for more after you sign in, so treat this as the minimum. Have your logo (square), 2–3 screenshots, a YouTube demo link and a launch discount ready alongside the four descriptions.
Adapt the first sentence per audience
| Directory audience | First sentence leads with |
|---|---|
| Developers (DevHunt, Show HN) | What it does technically: "A CLI that diffs Terraform against live AWS" |
| Founders (launch platforms) | The problem and outcome: "Stop writing up sales calls" |
| B2B buyers (review sites) | Category and buyer: "Conversation intelligence for small sales teams" |
| AI directories | The AI's job, specifically: "Summarises calls into CRM-ready notes" |
The rest can stay the same. That's enough to read as written for that audience, and it's faster than full rewrites.
Rules that get descriptions accepted
- No superlatives. "Best", "revolutionary" and "#1" get edited or rejected (Product Hunt explicitly bans over-the-top language in taglines).
- Accurate pricing labels. Don't tag a 7-day trial as "Free".
- Match your website. Reviewers check it. A description promising features your site doesn't show looks spammy.
- Respect the limit. Many forms truncate silently. Write to the limit rather than relying on cut-offs.
- Name the category in plain words. Directories file you by it.
See why directory submissions get rejected for the full list.
A full long description, for review sites
Review sites and software directories give you room. Use it for the questions buyers ask, not more adjectives:
Sales reps lose an hour a day writing up calls. Acme records your Zoom or Google Meet calls, writes a structured summary (next steps, objections, budget, decision-makers) and adds it to the right HubSpot or Pipedrive deal within a minute of the call ending.
Who it's for: sales teams of 2 to 20 people without dedicated RevOps support. Managers get a weekly digest of deals at risk.
Key features: automatic call recording, CRM field updates, a searchable call library, coaching notes, and a Slack summary after every call.
Integrations: Zoom, Google Meet, Microsoft Teams, HubSpot, Pipedrive, Slack.
What it doesn't do: it isn't a dialer, and it doesn't record phone calls outside these platforms.
Pricing: free for 10 calls a month; paid plans from $19 per user per month, billed monthly or annually.
That's about 900 characters. The "what it doesn't do" line is the one most vendors skip, and buyers on review sites trust a listing more when it's there.
Keep a master copy
Store all four lengths, plus per-audience first sentences, in one doc with a version number. Note which version went to which directory in your tracker, so you can update them when pricing or positioning changes.
One product, four openings
This is the fastest way to stop sounding copy-pasted. The first sentence carries most of the meaning in a list view or preview, so changing it per audience makes the whole listing read as written for that directory, even if the rest is shared.
Before and after: a full medium description
Before (gets ignored):
Acme is a revolutionary AI-powered platform that helps businesses of all sizes streamline their workflows and boost productivity with cutting-edge automation and seamless integrations.
After (gets clicked):
Sales reps lose an hour a day writing up calls. Acme records your Zoom or Meet calls, writes a structured summary (next steps, objections, budget) and adds it to the right HubSpot deal within a minute. Built for sales teams of 2–20 without RevOps support. Free for 10 calls a month; paid plans from $19 per user.
The difference: a specific problem, input and output, a named integration, a defined audience, and real pricing. No adjectives doing the work.
Words to cut
"Revolutionary", "cutting-edge", "seamless", "all-in-one", "next-generation", "powerful", "robust", "leverage" and "for businesses of all sizes". If a sentence still makes sense with the word removed, remove it.
Related
- How to write an AI tool directory listing
- SaaS directory submission checklist
- AgentLaunch writes per-directory copy from your product page within each site's character limits, so every listing reads as written for that audience
FAQ
How long should a directory description be? Prepare four lengths: 60, 160, 500 and 1,000+ characters, and use whichever the directory asks for.
Should I use the same description on every directory? Keep the core, but rewrite the first sentence for each directory's audience.
What makes a good SaaS description? What it does, for whom, how it's different, and proof or pricing, in plain, specific language.
What's the most common character limit for a directory tagline? 160 characters. In our sample of 20 directory forms that set a limit, 10 used 160. Product Hunt and TinyLaunch use 60.
How long should a directory description be? Write a 500-character version and a 1,000+ character version. Of 22 directory forms with a description limit, 10 capped it at 500 or less and six allowed 5,000.