Key takeaways
- Otterly.AI has the cheapest sticker price ($29/mo) but the most expensive hidden costs. Its Lite plan covers only 4 engines; adding Gemini, Google AI Mode, and Claude as add-ons can push the real bill toward $787/mo at Premium tier. The jump from Lite (15 prompts) to Standard ($189/mo) is a cliff with nothing in between.
- Promptwatch's $95/mo Essential plan bundles what Otterly charges extra for: pick any 4 of 11 engines at no added cost, switch them freely, and get API/MCP access from day one. It also includes AI crawler logs, which neither competitor offers at any price.
- Siftly is the only one of the three that executes, not just monitors. Its $79/mo Starter plan includes 8 auto-published GEO blog posts and 5 citation outreach campaigns per month. The trade-off: it's a newer Y Combinator-backed entrant with no G2 reviews yet.
- For most SaaS startups, Promptwatch wins on value if you want monitoring depth without add-on anxiety. Siftly wins if you have no content team and need the tool to do the writing. Otterly wins only if you genuinely need 15 prompts on 4 engines and nothing more.
Why budget AI visibility tools matter for SaaS startups in 2026
If you run a B2B SaaS company, your buying journey has changed. Before anyone visits your site, someone on the buying committee has asked ChatGPT or Gemini which platforms to shortlist. If the answer named three vendors and you weren't one of them, that deal was lost somewhere your analytics never recorded.
The problem for startups is that most AI visibility platforms were priced for enterprises. Profound starts at $399/mo for full multi-engine coverage. Ahrefs Brand Radar runs $828/mo minimum once you include the required base plan. Scrunch and Conductor don't publish pricing at all, which is never a good sign for a bootstrapped founder.
That leaves a cluster of tools in the $29 to $249 range that a seed-stage company can actually expense. Three of the most interesting are Siftly, Promptwatch, and Otterly.AI. They represent three genuinely different philosophies: Otterly sells cheap tracking with paid add-ons, Promptwatch sells a bundled mid-market platform, and Siftly sells monitoring plus execution.
I've dug into all three pricing pages, third-party reviews, and their own comparison content (which, fair warning, is as biased as you'd expect when a vendor writes about itself). Here's what the numbers actually say.
Quick comparison table
| Otterly.AI | Promptwatch | Siftly | |
|---|---|---|---|
| Entry paid price | $29/mo (Lite) | $95/mo (Essential) | $79/mo (Starter) |
| Free tier | 14-day trial | 10-prompt free tier | 100 responses/mo, 2 engines |
| Engines at entry tier | 4 (ChatGPT, AI Overviews, Perplexity, Copilot) | 4 of 11, freely selectable | 3 (ChatGPT, Google, Perplexity) |
| Max engine coverage | 7 (3 require paid add-ons) | 11 | 9 (Claude only on Enterprise) |
| Prompts at entry tier | 15 | 50 | 50 |
| API/MCP access | $189/mo tier and up | Included from $95/mo | Not published |
| Content generation | No | Yes (AEO articles, higher tiers) | Yes (8 blog posts/mo at Starter) |
| AI crawler logs | No | Yes (CDN integrations) | Yes (Growth tier and up) |
| G2 rating | ~4.7/5, Gartner Cool Vendor 2025 | 4.6-4.7/5, 1,780+ brands | No G2 profile found |
| Realistic monthly cost for 100 prompts, 5+ engines | ~$248+ | $245 (Professional) | $249 (Growth) |
Otterly.AI: the cheapest sticker, the most expensive reality
Otterly is the best-known name in this trio. It's been around since the early days of AI search monitoring, it has a Gartner Cool Vendor badge (2025), a 4.7/5 G2 rating, and somewhere between 30,000 and 40,000 marketing professionals using it. The product is genuinely good at what it does: daily prompt tracking, clean visibility reports, competitor monitoring, and GEO audits that tell you which pages need optimization.
The Lite plan at $29/mo gets you 15 prompts tracked daily across ChatGPT, Google AI Overviews, Perplexity, and Microsoft Copilot, plus 1,000 GEO audits per month. For a founder who just wants to know "does ChatGPT mention us when people ask about our category," it's the fastest, cheapest answer available.
The add-on problem
Here's where it gets expensive. That $29 plan only covers 4 engines. Want Google AI Mode and Gemini? That's $9/mo on Lite. Want Claude? Another $29/mo. On the Standard plan ($189/mo), those same add-ons cost $59 and $109 each. On Premium ($489/mo), $149 and $439.
So the realistic math: a Premium user who wants all 7 engines is paying $489 + $149 + $439 = $787/mo, not the $489 headline. And Otterly's own marketing proudly claims "7 engines tracked" without mentioning that 3 of them cost extra on every single tier.
The other structural issue is the Lite-to-Standard cliff. Lite caps you at 15 prompts with no rollover. The moment you need 16 prompts, you're paying $189/mo, a 6.5x price increase with nothing in between. Extra prompts come in 100-packs at $99/mo each, so a Standard user tracking 200 prompts pays $288/mo.
Where Otterly genuinely wins
- Cheapest possible entry point for basic tracking
- Best third-party validation (Gartner, G2 volume, industry recognition)
- Clean, beginner-friendly interface with strong export options
- 50+ countries and languages tracked
- GEO audits included from the Lite tier
Where it loses
- Engine add-ons inflate real cost by 30-60% depending on tier
- No content generation, no CMS publishing, no outreach. It's diagnosis without treatment.
- No AI crawler log analysis at any tier
- API/MCP locked behind the $189/mo Standard plan
- The 15-to-100 prompt gap between Lite and Standard is brutal for growing teams
Promptwatch: the bundled middle path
Promptwatch takes the opposite approach to Otterly on pricing philosophy: bundle everything into the plan and let users choose what they need from within it. The Essential plan at $95/mo includes 50 prompts, 6,000 tracked responses per month, and access to a pool of 11 AI engines. You pick any 4 per project, and switching which 4 you track costs nothing.
That engine pool includes ChatGPT, Perplexity, Google (AI Overviews and AI Mode), Gemini, Claude, Meta AI, DeepSeek, Grok, and others. For a SaaS startup trying to figure out which engines their buyers actually use, being able to rotate tracking without paying add-on fees is a real advantage.
API and MCP access are included from the Essential tier, which matters if you want to pipe visibility data into a dashboard, a Slack bot, or an AI agent workflow. Otterly gates this behind its $189/mo tier.
The crawler log difference
Promptwatch's most distinctive feature is AI crawler log analysis. Through direct integrations with Cloudflare, Fastly, Vercel, and other CDNs, it shows when AI bots like ChatGPTBot, ClaudeBot, and Google-Other crawl your pages, what they read, and whether they hit errors. It then connects crawl activity to citations, showing the time-to-citation path.
Neither Otterly nor Siftly offers anything comparable at the entry tier. For a technical SaaS founder, this answers the "why am I not visible" question in a way prompt tracking alone never can. If your robots.txt is accidentally blocking ClaudeBot, no amount of content optimization will help, and Promptwatch is the only one of these three tools that would surface that.
Social proof and credibility
Promptwatch claims 1,780+ brands and agencies, including Duolingo, Yelp, Typeform, Shutterstock, Fireflies, ABN AMRO, and Rabobank. Its G2 rating sits around 4.6-4.7/5 from a smaller review base than Otterly's. It's a Dutch company (Promptwatch B.V., Amsterdam) that raised a EUR 6M seed round in mid-2026, so it's funded and stable but younger than Otterly.
Where Promptwatch wins
- No add-on pricing for engines; pick any 4 of 11 and switch freely
- API/MCP included from the entry tier
- AI crawler logs with CDN integrations, unique in this price range
- Agent Chat for asking questions about your visibility data conversationally
- 50 prompts at entry vs Otterly's 15
Where it loses
- $95/mo entry is 3x Otterly's Lite price, even if the value math favors it
- Content generation (AEO articles) only kicks in at higher tiers
- Smaller review base and less brand recognition than Otterly
- The free tier (10 prompts, ChatGPT only) is thinner than Siftly's free plan
Siftly: the newcomer that does the work for you
Siftly is the newest and least established of the three. It's built by a Y Combinator Winter 2022 batch startup (previously called Airdot), founded by two ex-Snapdeal and ex-Microsoft engineers, based in San Francisco with a small team. It has no G2 reviews yet, which is either an opportunity (be an early adopter, get input on the roadmap) or a red flag (unproven at scale).
What makes Siftly interesting is that it's the only one of the three that treats monitoring as step one and execution as step two. Its Starter plan at $79/mo includes 8 GEO-optimized blog posts per month with auto-publishing to your CMS, plus 5 citation outreach campaigns. The Growth plan ($249/mo) scales that to 30 blog posts with FAQ schema, Reddit engagement, and AI bot crawl tracking with GA4 and Google Search Console integration.
For a seed-stage SaaS with no content team, this is a different value proposition entirely. Otterly tells you that you're invisible for "best CRM for startups." Siftly writes the article that might fix that, publishes it, and runs outreach to get it cited.
The SaaS-specific pitch
Siftly's use-case page for SaaS companies is directly relevant to this comparison. It focuses on tracking "best [category] tool" and "[competitor] alternative" prompts, benchmarking share of voice against named competitors, and cites a customer case where a company went from zero visibility to ranking #9 within a month across AI Overviews, Perplexity, and ChatGPT.
Its pricing scales engine coverage with tier: 2 engines on Free, 3 on Starter (ChatGPT, Google, Perplexity), 5 on Growth (adding Gemini), 8 on Scale (adding Copilot, Grok, DeepSeek), and 9 on Enterprise (adding Claude). So unlike Otterly, you're not paying per-engine add-ons, but you are paying for engine breadth through tier upgrades.
Where Siftly wins
- Only tool of the three that generates and publishes content at the entry tier
- Citation outreach campaigns included, not a separate product
- Free tier with 100 responses/mo is more generous than Promptwatch's 10-prompt free plan
- Reddit engagement and multi-language content at higher tiers
- SaaS-specific prompt templates and competitor benchmarking
Where it loses
- No G2 reviews, no third-party analyst recognition, minimal public track record
- Claude tracking only available on Enterprise (custom pricing)
- API access not published, unclear integration story
- Smaller team and company, higher vendor risk
- Content quality from automated generation is unverified by independent reviews
The verdict: which one should a SaaS startup actually buy?
If your budget is under $100/mo
Buy Promptwatch Essential ($95/mo) if you want the most monitoring capability per dollar and have any technical bent. You get 50 prompts, 4 of 11 engines with free switching, API/MCP access, and crawler logs. The free 10-prompt tier lets you validate before paying.
Buy Siftly Starter ($79/mo) if you have no content capability in-house and want the tool to write and publish for you. Accept the vendor risk of a newer, unreviewed product in exchange for execution help.
Buy Otterly Lite ($29/mo) only if you genuinely need 15 prompts on 4 engines and nothing more. The moment you need Gemini or Claude coverage, or a 16th prompt, the math turns against you fast.
If your budget is $100-250/mo
At this level, Promptwatch Professional ($245/mo) and Siftly Growth ($249/mo) are nearly tied on price but diverge on philosophy. Promptwatch gives you 150 prompts, 18,000 responses, knowledge base features, and agent analytics. Siftly gives you 100 prompts, 30 auto-published articles, Reddit engagement, and crawler tracking.
The question is whether your bottleneck is insight or output. If you have a content team that can act on visibility data, Promptwatch's deeper analytics win. If you don't, Siftly's content machine fills the gap.
Otterly Standard at $189/mo sits awkwardly here. It's cheaper than both, but adding the Gemini and AI Mode add-ons ($59/mo) brings it to $248/mo, at which point you're paying Promptwatch Professional money for fewer prompts (100 vs 150) and no content generation.
The honest bottom line
For most SaaS startups in 2026, Promptwatch offers the best value in this trio. Its bundled pricing eliminates the add-on anxiety that makes Otterly's real cost unpredictable, its crawler logs answer questions the other two can't, and its engine pool is the broadest at the entry tier. It's the tool I'd recommend as a default.
Siftly is the wildcard. If its content generation quality holds up, the $79 Starter plan replaces both a monitoring tool and a content tool, which is a genuinely compelling bundle for a startup that can't afford either separately. But with no G2 presence and a tiny team, it's a bet on an unproven product.
Otterly is the safe, recognized choice with the best third-party validation. Its Lite plan is a fine starting point, and its GEO audits are solid. Just go in with eyes open about the add-on structure, because the $29 headline and the $787 worst-case reality are the same product.
All three offer free tiers or trials. Test each with your actual prompts before committing, because the tool that tracks your category's questions most accurately is the one that deserves your budget.