Stellarcast vs Otterly.AI: which AI visibility tool fits you?
An honest side-by-side of Stellarcast and Otterly.AI: what each costs, which engines each plan checks, whether it can fix what it finds, and how it proves results.
Stellarcast is our product, so read this knowing our bias. It is written to be useful anyway, including where Otterly.AI is the better choice. Every fact about Otterly.AI comes from its own pricing and product pages, checked on 26 September 2026; confirm anything that decides your purchase with the vendor.
The short answer
Otterly is the lowest-cost mainstream tracker, with fully published pricing and a practical audit toolkit. Stellarcast costs $10 more to start, includes Google AI Mode and Gemini rather than selling them as add-ons, and goes on to ship fixes and prove the lift.
See how AI engines describe your brand first: get a free visibility audit, no card.
Side by side
| Stellarcast | Otterly.AI | |
|---|---|---|
| Pricing | Public: $39, $89, $249, $549/mo; agencies $599 and $1,499/mo | Lite $29/mo ($25 annual), up to Premium $489/mo; Enterprise custom from 1,000 prompts |
| Engines | Six, daily, on every paid plan: Google AI Overviews, ChatGPT, Gemini, Perplexity, Google AI Mode, Microsoft Copilot (Claude and Grok on Enterprise) | ChatGPT, AI Overviews, Perplexity, Copilot included; AI Mode and Gemini ($9 to $149/mo) and Claude ($29 to $439/mo) are add-ons |
| Fixes shipped to your site | Drafts fixes and, after your approval, ships them to WordPress or Shopify (from $89) | No publishing; audits, recommendations, content briefs and a placement marketplace |
| Proof of impact | Lift ledger: every claim labelled MEASURED, LIKELY or TOO-EARLY, with a range | No lift method described on its pricing or product pages |
| Markets | 18 markets, each measured with native-language prompts, on every plan | 50+ countries |
| Trial | No trial; free audit with no card | 14 days, no card |
Checked 26 September 2026 against each vendor's own pages.
Where Otterly.AI wins
- The lowest entry price among mainstream trackers: $29 a month, with a 14-day trial and no card.
- Unlimited team members and brand reports on every plan.
- A practical optimisation toolkit: crawler and content audits, recommendations and a placement marketplace.
- ChatGPT Ads tracking on all plans, and every add-on price published.
Where Stellarcast wins
- Google AI Mode and Gemini included on every plan, not sold as add-ons.
- Fixes shipped to WordPress or Shopify after your approval, from $89.
- A lift ledger with a confidence label on every claim.
- Native-language prompts per market, so a German buyer's question is asked in German.
How to decide
- Choose Otterly.AI if you are a small team that needs affordable monitoring of the four core engines plus a list of fixes to work through yourself.
- Choose Stellarcast if you need all six engines without add-ons, and want fixes shipped and results proven. See the plans.
See what AI says about you today
The free audit asks Google AI Overviews, ChatGPT, Gemini and Perplexity the questions buyers in your market ask, and shows where a competitor is named instead of you. No card, no commitment.
Get your free visibility auditFrequently asked questions
Is Stellarcast a Otterly.AI alternative?
Yes. Both track whether AI engines name and cite your brand. Otterly is the lowest-cost mainstream tracker, with fully published pricing and a practical audit toolkit. Stellarcast costs $10 more to start, includes Google AI Mode and Gemini rather than selling them as add-ons, and goes on to ship fixes and prove the lift.
How much does Otterly.AI cost compared with Stellarcast?
Otterly.AI Lite is $29 a month ($25 on annual billing) and Premium is $489, with Gemini, Google AI Mode and Claude as paid add-ons. Stellarcast starts at $39 a month with six engines included. Checked 26 September 2026.
Which AI engines do Otterly.AI and Stellarcast track?
Otterly includes ChatGPT, Google AI Overviews, Perplexity and Copilot, and sells Gemini, AI Mode and Claude as add-ons. Every Stellarcast paid plan checks Google AI Overviews, ChatGPT, Gemini, Perplexity, AI Mode and Copilot daily.
Can Otterly.AI publish fixes to my website?
No publishing; audits, recommendations, content briefs and a placement marketplace. Stellarcast drafts fixes and, after your approval, ships them to WordPress or Shopify from its $89 Starter plan.