RankBits vs Otterly: An Honest AI Visibility Tool Comparison (2026)

If you're shopping for an AI visibility tool and don't want to spend $500/month, two names come up fast: Otterly — the Vienna-based, marketer-founded platform with 15,000+ users and a Gartner Cool Vendor badge — and RankBits — the newer, bootstrapped tool that takes a different approach to the same problem.

I'm the founder of RankBits, so you should know that going in. But I'm also the person who published a Perplexity brand tracker that showed RankBits scoring zero percent visibility. I also wrote an honest RankBits vs Peec AI comparison where I told readers to pick Peec if they need unlimited seats and maturity. This article follows the same rule: tell you where Otterly is genuinely better, where RankBits wins, and which tool fits which buyer.

Quick Comparison Table

Pricing: Visual Comparison

Otterly's Lite plan at $29/month is the cheapest entry point in the category — cheaper than RankBits Starter at $49/month. But the gap flips at the mid-tier: Otterly Standard is $189/month versus RankBits Pro at $99/month. And Otterly Premium at $489/month is nearly 5× RankBits' top plan.

The real cost story is in the add-ons. Otterly's base plans include four engines (ChatGPT, Google AI Overviews, Perplexity, Microsoft Copilot). Google AI Mode and Gemini are add-ons — $9/month on Lite, scaling to $149/month on Premium. Claude is another add-on from $29/month. To track all six available engines on Standard, you're looking at roughly $189 + $59 + $29 = $277/month. RankBits Pro includes all 18 engines at $99/month flat.

Engine Coverage

RankBits Pro ($99/month): 18 engines, all included. ChatGPT, ChatGPT Pro, Claude, Claude Pro, Gemini, Gemini Pro, Google AI Overviews, Google AI Mode, Perplexity, Grok, SuperGrok, Bing Copilot, Google Search, Bing Search, DuckDuckGo, Yahoo, Tavily, and Exa.

Otterly (all plans): 4 base engines (ChatGPT, Google AI Overviews, Perplexity, Microsoft Copilot) + 3 paid add-ons (Google AI Mode, Gemini, Claude). No Grok, no DeepSeek, no paid-tier assistants, no traditional search baselines, no AI-native search APIs.

Otterly notably does not track Claude in any base plan — it's an add-on from $29/month. It also doesn't track Grok, DeepSeek, or any paid-tier AI assistants. If your buyers use Claude or Grok, Otterly either can't see them or charges extra.

Feature Radar: Strengths at a Glance

The radar tells the story in one glance: RankBits dominates on engine coverage, free tier access, and API availability. Otterly leads on GEO audits, team features, and maturity. Both score similarly on prompt discovery. Neither is strong on source categorization.

Features: Where Each Tool Actually Wins

Where Otterly is genuinely stronger

GEO Audit. This is Otterly's standout feature and the thing no other tool at this price point does. The GEO Audit checks three things: crawlability (can AI bots access your pages?), content readiness (is your content static and structured for AI understanding?), and structured data (do you have the schema markup AI engines need?). It then gives you a prioritized checklist of fixes. RankBits has no equivalent — it tells you where you stand but doesn't audit why your pages aren't being cited.

Query Fan-Out. Otterly shows you the expanded queries AI engines generate from your prompts — effectively, "when someone asks X, the AI also searches for Y and Z." This is genuinely useful for discovering new prompts to track and content gaps to fill. RankBits doesn't do this.

AI Crawler Simulation. Otterly simulates how AI crawlers see your pages, which helps diagnose technical blocks before they cost you citations. RankBits doesn't have this.

Maturity and community. Otterly launched in October 2024, has 15,000+ users, was named a Gartner Cool Vendor in 2025, is a European Search Awards finalist, and partners with Semrush. The founders previously built and sold Usersnap — they've done this before. RankBits is a month old. For buyers who need a proven tool, Otterly wins by a wide margin.

Looker Studio connector. Otterly offers native Looker Studio integration on Standard and above. RankBits offers CSV, PDF, and Excel exports plus a REST API and MCP server, but no native Looker Studio connector.

Brand Sentiment Analysis. Otterly tracks whether AI mentions are positive, neutral, or negative. RankBits tracks mention and citation counts but doesn't classify sentiment.

ChatGPT Ads & Shopping tracking. Otterly tracks brand appearance in ChatGPT ads and shopping results — a surface most tools ignore. RankBits doesn't cover this.

Workspaces for teams. Otterly supports multiple workspaces for organizing clients or brands separately. RankBits is built for individual accounts.

Where RankBits is genuinely stronger

Engine breadth without add-on fees. 18 engines on a $99/month plan versus 4 base engines plus paid add-ons. If you want to track Claude, Gemini, Grok, Copilot, AI Mode, and AI Overviews alongside ChatGPT and Perplexity, RankBits is dramatically cheaper and covers surfaces Otterly doesn't touch.

API access on every plan. RankBits includes REST API access on Free, Starter, and Pro — no upsell. Otterly launched a public API in June 2026, which is good, but RankBits had it from day one and includes it even on the free plan.

Free tier that never expires. RankBits Free is $0 forever — one brand, five prompts, five engines, weekly scans, public shareable reports. Otterly offers a 14-day free trial, after which you're paying at least $29/month. For someone who just wants to see if AI engines know their brand exists, RankBits answers that question for free, forever.

Paid-tier AI assistants. RankBits tracks ChatGPT Pro, Claude Pro, Gemini Pro, and SuperGrok — the paid, upgraded versions of each assistant. These often produce different answers than their free counterparts, and premium users tend to be higher-intent buyers. Otterly doesn't differentiate between free and paid tiers.

Traditional search baselines. RankBits includes Google, Bing, DuckDuckGo, and Yahoo search results alongside AI answers. This gives you a source-layer baseline — you can see whether a brand that's invisible in AI answers is also invisible in traditional search. Otterly is AI-only.

Public shareable reports. Every RankBits scan produces a permanent public URL. No login required to view. You can send it to a client, embed it in a pitch deck, or share it on social media. Otterly reports stay inside the platform.

AI-native search engines. Tavily and Exa are the search APIs that power AI agents and coding tools like Cursor and Cognition. If your product is developer-facing, these matter — they're the retrieval layer under the tools your buyers actually use. Neither is available in Otterly.

Grok and SuperGrok. RankBits tracks both Grok (free) and SuperGrok (paid). Otterly doesn't track either. If your audience is on X or uses Grok, this is a meaningful gap.

The Honest Limitations of Each

Otterly's limitations

• Engine add-ons add up. Four base engines is fine for a start, but adding AI Mode, Gemini, and Claude can more than double your bill. On Standard, six engines cost ~$277/month versus RankBits Pro's $99/month for 18.
• No Claude in base plans. Claude is an add-on from $29/month on every tier. Given Claude's importance for B2B buyers, this is a notable gap in the base offering.
• No Grok or DeepSeek. If your buyers use X/Grok or DeepSeek, Otterly can't track those surfaces at all.
• No paid-tier assistant tracking. ChatGPT Pro, Claude Pro, and Gemini Pro users may see different recommendations. Otterly doesn't capture that split.
• No traditional search baseline. You can't compare AI visibility against Google/Bing rankings in the same tool.
• Lite plan is very limited. 15 prompts and 1,000 GEO URL audits per month. For serious tracking, you'll outgrow Lite within weeks and face the 6.5× jump to Standard at $189/month.
• Monitoring-only. Like most tools in this category, Otterly tells you where you stand but doesn't write content, build authority, or fix the gaps it finds. The GEO Audit points at problems; it doesn't solve them.

RankBits' limitations

• New and unproven. One month old, bootstrapped, no G2 reviews yet. Otterly has 15,000+ users, a Gartner badge, and a two-year track record.
• No GEO audit. RankBits shows you visibility data but doesn't audit your pages for crawlability, content readiness, or structured data. You need to diagnose citation failures yourself.
• No query fan-out. RankBits doesn't show you the expanded queries AI engines generate from your prompts — a genuinely useful feature Otterly has.
• No AI crawler simulation. You can't test how AI bots see your pages within RankBits.
• No sentiment analysis. RankBits tracks whether you're mentioned, not whether the mention is positive.
• No Looker Studio connector. CSV/PDF/Excel exports, REST API, and MCP cover most workflows, but if your reporting stack is Looker Studio-native, Otterly has the edge.
• No team workspaces. Built for individual accounts. Otterly's workspaces are better for agencies managing multiple clients.
• Smaller prompt caps on lower tiers. Free = 5 prompts, Starter = 20, Pro = 50. Otterly Standard gives you 100 prompts at $189/month. If you need to track 100+ prompts, Otterly's higher tiers give you more headroom.

Which Tool Should You Pick?

The Bottom Line

Otterly is the more mature, feature-rich tool. It has GEO audits, query fan-out, AI crawler simulation, sentiment analysis, Looker Studio, and ChatGPT Ads tracking — features RankBits doesn't have. It's been around since 2024, has 15,000+ users, and carries a Gartner Cool Vendor badge. If you need those features and are comfortable with per-engine add-on costs, Otterly is the right choice.

RankBits is the sharper choice for a specific buyer: the technical founder or lean team that needs broad engine coverage at a flat price, API access on a free plan, MCP server, paid-tier assistant tracking, traditional search baselines, and public shareable reports. It's newer and carries the risk that comes with that — but it covers 18 engines at $99/month with no add-on fees, and its free tier never expires.

These tools actually complement each other surprisingly well. Otterly tells you why you're not being cited (GEO audit, crawler simulation). RankBits tells you where you're invisible across the broadest set of surfaces. The ideal stack for a serious team might be both: Otterly for diagnostics, RankBits for breadth.