Rankscale vs Otterly.ai
Rankscale and Otterly.ai are the two obvious answers when the budget is small. Otterly wins on getting started — there is a free tier and nothing to calculate. Rankscale wins on what you get once you are paying — 17+ engines and 240+ regions for roughly $20/mo, at the cost of managing a credit balance. The choice is between the least friction and the most coverage per euro.
Rankscale
Credit-based AI visibility tracker spanning 17+ engines and 240+ regions, from roughly $20/mo.
Strengths:
- 17+ engines including Claude, Mistral, DeepSeek, and Grok
- 240+ regions and languages for international coverage
- Around $20/mo entry with no contract
Weaknesses:
- Credits require you to budget prompts × engines × frequency
- Breadth-first: claim-level analysis is thinner
- Team and collaboration workflows are light
Otterly.ai
Self-serve AI brand mention tracker with a genuinely free starter plan and paid tiers from around $29/mo.
Strengths:
- Free starter tier — no card, no budget approval
- Simplest onboarding in the category
- Clean dashboards that need no interpretation
Weaknesses:
- Covers three engines versus Rankscale's 17+
- Basic claim-level analysis
- Free plan quotas tighten as you scale
Verdict
Choose Otterly.ai if you want a zero-cost start, the simplest possible dashboard, and no credit maths — for a founder checking whether AI even mentions the company, that is the right first move. Choose Rankscale the moment you are willing to pay anything at all: at around $20/mo it tracks 17+ engines across 240+ regions, which is far more than Otterly covers, and includes Claude where Otterly does not. If you sell internationally or your buyers use anything beyond ChatGPT, Perplexity, and Gemini, Rankscale is the stronger buy despite the credit budgeting.
Both tools are counting mentions cheaply, and for that purpose neither is beaten by a third option here. Perciva sits in a different lane: buyer-intent prompt monitoring for B2B SaaS, where each answer is stored verbatim, the claims inside it are extracted, and you get an alert when a competitor takes your recommendation slot — from €49/mo, more than either tool above and across fewer engines than Rankscale.
Frequently Asked Questions
Which is cheaper?
Otterly.ai has a free starter tier, so it is cheaper at zero. Once you pay, Rankscale is cheaper — credit-based entry from around $17–20/mo versus Otterly's roughly $29/mo — and it covers many more engines at that price.
Do they track the same engines?
Not close. Rankscale covers 17+ engines including ChatGPT, Claude, Gemini, Perplexity, Copilot, Mistral, DeepSeek, and Grok across 240+ regions. Otterly focuses on ChatGPT, Perplexity, and Gemini.
Is credit-based pricing a problem?
It is a planning tax rather than a trap. Credits are spent per prompt, per engine, per scan, so you have to estimate your volume up front. Teams that want a fixed line item on the budget often prefer a flat monthly fee even when it costs more.