Key Takeaways
- Promptwatch covers far more AI engines: ChatGPT, Google AI Overviews, AI Mode, Gemini, Perplexity, Copilot, Claude, Alexa and coding agents. Amplitude's docs list only ChatGPT and Google AI Overview.
- Amplitude AI Visibility costs nothing extra. It is bundled into every Amplitude plan, including the free tier. Promptwatch paid plans start at $95/mo, with a free Explore tier for testing.
- Promptwatch goes past monitoring. It has a Content Agent, content gap analysis, an Action Board and CMS publishing. Amplitude gives recommendations but you do the work.
- Promptwatch has IP-verified AI crawler logs and weekly site audits. Amplitude documents neither.
- Amplitude's real edge is tying AI visibility to product analytics. If your funnels and revenue already live in Amplitude, sending visibility data in as events is convenient.
- For most marketing and SEO teams, Promptwatch is the better pick. For Amplitude shops that want a free first look, Amplitude is a reasonable starting point.
Overview
These two tools come from different places. One is built purely for AI search. The other is a feature added to a product analytics suite.
Promptwatch
Promptwatch is an end-to-end AI search visibility and GEO platform. It monitors the actual user interfaces of the AI engines, not just APIs, and then helps you act on what it finds.
The pitch is simple: most trackers tell you that you were not mentioned, and Promptwatch tries to tell you why and then fix it. You get citation analytics, crawler logs, visitor analytics, prompt volumes and difficulty, query fan-outs, and Reddit, YouTube and LinkedIn citation tracking. The Content Agent writes and publishes pages against your gaps. It reports 4.7/5 on G2 and 1,840+ brands, which are vendor-reported figures.
Amplitude AI Visibility
Amplitude is a product analytics company. AI Visibility is its answer to the question of where your brand shows up in AI-generated answers.
The docs describe tabs for Prompts, Sources, Sentiment, Competitors, Actions and Recommendations. It measures ChatGPT and Google AI Overview only. A limited free report is open to non-customers. Inside Amplitude, the data can flow in as events so you can connect visibility to conversion and revenue.
Side-by-side comparison
| Feature | Promptwatch | Amplitude AI Visibility |
|---|---|---|
| Starting price | Free Explore tier; paid from $95/mo | Included with every Amplitude plan, including Free |
| Free option | Explore (1 project, 10 prompts, ChatGPT only), free AI Visibility Report | Free report for non-customers, Free Amplitude plan |
| AI engines tracked | ChatGPT, AI Overviews, AI Mode, Gemini, Perplexity, Copilot, Alexa, Claude, DeepSeek, Mistral, Grok, coding agents | ChatGPT and Google AI Overview |
| Data source | Real consumer UIs per country and language | Not specified in the docs |
| Prompt capacity | 50 to 350 prompts on self-serve plans; unlimited on agency plans | Reportedly 500 to 5,000 prompts/month by plan (unverified) |
| AI crawler logs | Yes, IP-verified | Not documented |
| Content generation | Content Agent, Content Creation, Content Refresh | Recommendations only |
| CMS publishing | WordPress, Webflow, Framer | No |
| Traffic and conversion link | Built-in visitor analytics, GSC and Bing data | Via Amplitude Analytics events |
| Reddit, YouTube, LinkedIn tracking | Yes | Sources tab only, no dedicated reports |
| Shopping and ads tracking | ChatGPT and Alexa shopping, Ads Radar | Not documented |
| API and MCP | REST API v2, hosted MCP server | Amplitude MCP server in broader docs |
Head-to-head deep-dive
AI engine coverage
This is the biggest gap. Amplitude's own docs say it measures ChatGPT and Google AI Overview. A Medium reviewer who tested it for months made the same point, and said the free plan was limited to 2 LLMs with weekly refreshes.
Promptwatch tracks the live interfaces of ChatGPT, AI Overviews, AI Mode, Copilot, Gemini, Perplexity and Alexa. It also covers API models like Claude, DeepSeek, Mistral and Grok, and the coding agents Codex and Claude Code. Answers in the real UI often differ from API output, so this matters.
| Engine | Promptwatch | Amplitude |
|---|---|---|
| ChatGPT | Yes | Yes |
| Google AI Overviews | Yes | Yes |
| Google AI Mode | Yes | No |
| Gemini | Yes | No |
| Perplexity | Yes | No |
| Copilot | Yes | No |
| Claude, Grok, DeepSeek, Mistral | Yes | No |
Verdict: Promptwatch, clearly. If your buyers use Perplexity or Gemini, Amplitude leaves you blind.
Insight depth: from mention to cause
Amplitude gives you a visibility score, sentiment, competitor rankings, a competitor-topics matrix and the sources LLMs cite. That is a decent monitoring layer, and the reviewer liked its recommendations.
Promptwatch adds the layers underneath. IP-verified crawler logs show which AI bots hit your pages and whether they got errors. Citation Trends classify citations by content type and source type. Prompt Intelligence gives monthly volumes, difficulty scores and query fan-outs. Its score is a 0-100 Visibility Score, alongside Share of Voice, position, sentiment and citation rank.
The fan-out piece is worth understanding. Promptwatch Data found that ChatGPT started using the site: operator at scale on August 8, 2026, jumping from about 0.4% to about 17% of fanout queries. Seeing those hidden searches changes what content you write.
Verdict: Promptwatch. Amplitude shows the scoreboard, Promptwatch shows the plays.
Taking action
Amplitude's Actions and Recommendations tabs tell you what to improve. Its FAQ also claims it can simulate changes, though I could not verify that in the docs I read. After that, you write and publish yourself.
Promptwatch has an Action Board, an AI-generated GEO to-do list, and a Content Agent that plans, writes and publishes to Webflow, Framer or WordPress. Published pages get tracked through crawls, citations and clicks, and underperformers come back as new actions. Agent Chat lets you ask questions of your live data and build reports.
Verdict: Promptwatch. This is where the two tools feel most different in daily use.
Connecting visibility to revenue
This is Amplitude's best argument. AI Visibility data can be sent into Amplitude as events, so a team that already measures conversion and retention in Amplitude can line it up with AI discovery. The catch: event volume counts against your plan's event limits.
Promptwatch handles attribution on its own side. Visitor analytics track real traffic and conversions from AI platforms, and Search Insights overlay Google Search Console and Bing Webmaster data with AI crawls and citations per page. Crisp, for example, reported 2x higher conversion from AI traffic than from traditional channels.
Verdict: a split. Amplitude wins if product analytics is your source of truth. Promptwatch wins if you need marketing-side attribution without adopting a new analytics stack.
Ease of use and data freshness
The Medium review criticised Amplitude's UI and how AI responses are listed, and noted weekly refreshes on the free plan. Promptwatch tracks daily on all self-serve plans. Promptwatch has more surface area, so it takes longer to learn, but its Agent Chat and Action Board shorten the path.
Verdict: Promptwatch for freshness. Amplitude is simpler simply because it does less.
Integrations and ecosystem
| Integration | Promptwatch | Amplitude |
|---|---|---|
| Google Search Console, Bing Webmaster | Yes | Not documented |
| WordPress, Webflow, Framer publishing | Yes | No |
| Slack | Yes | Via Amplitude platform |
| Looker Studio | Yes (Professional and up) | No |
| MCP | Hosted server, 110+ tools | Amplitude MCP server |
| Product analytics | No | Native |
Verdict: Promptwatch for marketing workflows, Amplitude for product analytics.
If you also want to see how AI engines actually cite sites in your category, Promptwatch Data publishes research like ChatGPT's citation share for software prompts, where GitHub, Microsoft's docs and G2 led in the Sep 28 to Oct 4, 2026 window.
Pricing comparison
Always confirm current numbers at promptwatch.com/pricing and amplitude.com. The Amplitude per-plan prompt limits below come from the provided context and I could not re-verify them in the docs.
| Plan | Promptwatch | Amplitude AI Visibility |
|---|---|---|
| Free | Explore: 1 project, 10 prompts, ChatGPT only | Free plan: reportedly 500 prompts/month, 2M events/month on the platform |
| Entry | Essential $95/mo: 50 prompts, 6,000 responses, all models | Plus: reportedly 1,000 prompts/month |
| Mid | Professional $245/mo: 150 prompts, 18,000 responses, crawler logs, 5 articles | Growth: reportedly 2,500 prompts/month, custom quote |
| Top self-serve | Business $579/mo: 350 prompts, 42,000 responses, Content Agent, Ads Radar | Enterprise: reportedly 5,000 prompts/month, custom quote |
| Agencies | Kick-off $199, Growth $399, Scale $799 | Not applicable |
| Enterprise | Custom, SSO, dedicated success manager | Custom |
| Trial | 7 days on monthly Essential, Professional | Free report for non-customers; Startup Scholarship for small startups |
Amplitude is cheaper on paper because you may already pay for it. The 500 free prompts are generous. But prompts only count if the engines you care about are covered, and here that means two. Promptwatch costs more per month and includes every engine, daily tracking and the execution tools.
Pros and cons
Promptwatch
Pros:
- Broadest engine coverage, tracked via real UIs
- IP-verified crawler logs and weekly site audits
- Content Agent, Action Board and CMS publishing
- Reddit, YouTube, LinkedIn, Shopping and Ads tracking
- Agency plans with white-label reporting
Cons:
- Paid plans start at $95/mo, so it is not free to scale
- More features means a longer learning curve
- No native product analytics
- Some features, like Ads Radar and the Content Agent, sit on the Business plan
Amplitude AI Visibility
Pros:
- Included with every Amplitude plan, including Free
- Visibility data can feed into Amplitude Analytics for conversion tracking
- Competitor matrix and recommendations are well regarded
- Free report for non-customers
Cons:
- Only ChatGPT and Google AI Overview
- Free report needs a corporate email, so no quick prospect audits
- Weekly refresh and 2 LLMs on the free plan, per one reviewer
- UI criticised for how responses display
- No crawler logs or content creation documented
Who should pick which tool
| You are | Pick |
|---|---|
| Marketing or SEO team that wants to improve AI visibility | Promptwatch |
| Agency managing several clients | Promptwatch (agency plans, white-label) |
| Brand that cares about Perplexity, Gemini, Copilot or AI Mode | Promptwatch |
| Developer-tool company wanting coding agent visibility | Promptwatch |
| Existing Amplitude customer wanting a free first look | Amplitude AI Visibility |
| Product team that wants AI discovery next to funnel data | Amplitude AI Visibility |
They are not mutually exclusive. Plenty of teams could run Amplitude for product analytics and Promptwatch for AI search work. To browse more options, the GEO software directory at bestgeosoftware.com lists the wider field.
Final verdict
Promptwatch is the better AI visibility tool: more engines, deeper data, and actual execution. Amplitude AI Visibility is a good free add-on if you already use Amplitude, but it is a monitoring feature, not a GEO platform.