# Perplexity vs Visual Field Test

Perplexity records 88,310,223 monthly visits with -3.7% month-over-month growth and Freemium pricing. Visual Field Test records 0 monthly visits with 0% growth and Free pricing.

| Metric | [Perplexity](https://openaitools.app/tool/perplexity-ai) | [Visual Field Test](https://openaitools.app/tool/visual-field-test) |
| :--- | :--- | :--- |
| Website URL | https://www.perplexity.ai | https://visualfieldtest.com |
| Categories | AI Search Engine, AI Answer, AI Copilot, Large Language Models (LLMs) | AI Symptom Checker, AI Healthcare, AI Detector, AI Monitor |
| Pricing Model | Freemium | Free |
| Monthly Visits | 88,310,223 | 0 |
| MoM Growth Rate | -3.7% | 0% |
| Primary Market | United States | Global |
| Direct Visits | 63,320,727 | 0 |
| Review Score | 4.7 | 4.4 |
| Saved Count | 185 | 0 |
| Supported Platforms | Website | Website |

## Perplexity

Perplexity is an AI-native answer engine and autonomous research platform designed to replace traditional keyword search and fragmented browser tab workflows. Instead of returning a ranked list of blue links, Perplexity interprets complex natural-language queries, crawls live web indexes, academic databases, financial filings, and social discussions in real time, and synthesizes direct, structured answers anchored by numbered inline citations. Beyond conversational search, the platform has evolved into a broader agentic ecosystem encompassing Perplexity Computer for autonomous multi-step tasks and the Comet AI browser assistant.

Under the hood, Perplexity orchestrates its proprietary web-grounded Sonar model family alongside frontier third-party reasoning models—allowing paid subscribers to route queries through Claude Opus 4 and Sonnet 4, OpenAI's o3-pro and GPT series, or Google's Gemini models, or run parallel evaluations via Model Council. Its Deep Research mode autonomously decomposes intricate questions, conducts dozens of iterative searches across hundreds of primary sources, and compiles exhaustive, exportable briefing reports in minutes. Users can also organize ongoing projects inside Perplexity Spaces, which fuse uploaded private documents (PDFs, CSVs, docs) with live web grounding and custom system instructions.

Perplexity serves an expansive audience ranging from students and journalists to equity analysts, legal researchers, and software engineers. Individual users can rely on the free tier for everyday fact-checking, step up to Perplexity Pro ($20/month) for daily deep research and model switching, or subscribe to Perplexity Max ($200/month) for uncapped high-compute agentic runs. Organizations adopt Enterprise Pro ($40/seat/month) and Enterprise Max ($325/seat/month) for SOC 2 compliance, zero data training guarantees, and internal knowledge connectors, while developers integrate real-time grounded citations into custom software via the Sonar REST API.

**Pricing & Plans:** Offers a permanent Free tier with unlimited Quick Searches, 3 Pro Searches per day, and 1 Deep Research query per month; Perplexity Pro costs $20/month ($200/year) and Perplexity Max costs $200/month ($2,000/year) for individuals. Team plans start at $40/seat/month ($400/seat/year) for Enterprise Pro and $325/seat/month for Enterprise Max, alongside usage-based Sonar API billing.

- **Deep Research Autonomous Reports:** Executes multi-step iterative web and document research across hundreds of sources, cross-checking facts and generating structured, citation-backed analytical reports that can be exported as PDFs or shared as interactive Perplexity Pages.
- **Multi-Model Routing & Model Council:** Lets Pro and Max subscribers switch dynamically between Perplexity's in-house Sonar models and top external models (including Claude 4, o3-pro, and Gemini) or compare multi-model reasoning outputs side by side.
- **Perplexity Spaces & Hybrid RAG:** Provides dedicated project workspaces where users upload local PDFs, spreadsheets, and text files, configure custom assistant instructions, and run queries that combine private document retrieval with live internet search.
- **Perplexity Computer & Comet Assistant:** Extends Perplexity from passive Q&A into agentic execution, turning high-level user requests into completed workflows, multi-tab browser actions, and automated data synthesis via the Comet ecosystem.
- **Sonar Web-Grounded Developer API:** Exposes Sonar, Sonar Pro, Sonar Reasoning Pro, and Sonar Deep Research over standard HTTP endpoints so developers can embed low-latency, live-cited web intelligence directly into third-party applications.

**Strengths:** Every generated statement links directly to numbered, verifiable web or document sources, drastically reducing ungrounded LLM hallucinations.; Deep Research mode delivers comprehensive, multi-page synthesis reports at a fraction of the time required for manual desk research.; Broad model optionality lets subscribers use Sonar, Claude, OpenAI, and Gemini models under a single $20/month subscription.; Focused search scopes (Academic, Finance, Web, Social) and Spaces allow clean separation between general browsing and domain-specific knowledge work.

**Limitations:** The Free tier is tightly restricted to 3 Pro Searches per day and just 1 Deep Research query per month with no manual model selection.; Power users requiring heavy agentic Computer runs or uncapped o3-pro/Opus-level research must jump from $20/month Pro to the steep $200/month Max tier.; Synthesized summaries can still inherit inaccuracies if underlying top-ranked web sources contain outdated or biased reporting.

[Profile (Markdown)](https://openaitools.app/tool/perplexity-ai.md)

## Visual Field Test

:

Visual Field Test is an independent, browser-based perimetry tool aimed at people who want to keep an eye on their peripheral vision between professional exams. After you cover one eye and fix your gaze on a central cross, small dots of light appear at random points around the screen; you press the space bar or click whenever you notice a flash. Each session runs about five minutes per eye and produces a colour-coded map where seen points and missed points are shown separately.

The platform offers two levels of testing. Simple mode gives a fast screening pass, while Advanced mode performs threshold testing on a 24-2 style point grid and reports clinical-style summary indices including Mean Deviation (MD) and Pattern Standard Deviation (PSD). Beyond the raw map, each result is accompanied by an AI-generated summary that describes your responses in plain language, along with your score, test duration and response-consistency checks.

Results are stored automatically and charted as per-eye trend lines so gradual changes become visible over weeks, months or years. A comparison view lines your tests up from oldest to newest and flags points that recovered on retest versus newly missed points, and you can export printable PDF reports covering the threshold map, grayscale, total deviation, probability map and global indices. Read-only sharing lets a doctor or family member review your history, and any test can be permanently deleted. The site is clear that this is an educational screening and monitoring aid, not a medical device or a diagnosis.

**Pricing & Plans:** Free for human users; no account fees or paid tiers are advertised for taking the visual field test. The site does charge automated crawlers and scrapers a per-request fee, but that does not affect normal visitors.

- **Guided home perimetry test:** A guided routine walks you through covering one eye, fixing on a central cross and pressing space or clicking whenever a light flash appears, taking about five minutes per eye.
- **Simple and Advanced test modes:** Simple mode screens your field quickly, while Advanced mode measures threshold sensitivity in decibels and reports Mean Deviation and Pattern Standard Deviation.
- **AI-powered plain-language summaries:** Every result arrives with a colour-coded map of seen versus missed points, a score, duration and response-consistency checks, plus a plain-language AI explanation.
- **Trend tracking and test comparison:** Tests are saved automatically and charted as per-eye consistency trends, with side-by-side comparison that highlights newly missed or recovered points and overall change.
- **PDF reports and secure sharing:** Export a printable PDF with threshold map, grayscale, total deviation, probability map and global indices, or share read-only access with a clinician or relative.

**Strengths:** Free to use in any modern browser, with no app install or clinic visit; Advanced mode reports decibel thresholds plus MD and PSD indices for deeper tracking; Automatic saving, per-eye trend charts and side-by-side test comparison; Printable PDF reports and read-only sharing with a clinician

**Limitations:** Browser-based screening is not a diagnostic medical device and cannot replace a clinical visual field exam; Results can be affected by screen calibration, room lighting, viewing distance and browser zoom; Simple mode is a coarse screen rather than an equivalent to in-clinic Humphrey 24-2 perimetry; Accurate threshold testing demands good fixation discipline, which some users find tiring

[Profile (Markdown)](https://openaitools.app/tool/visual-field-test.md)

## Frequently Asked Questions

### How do Perplexity and Visual Field Test compare in monthly traffic?

Perplexity has 88,310,223 monthly visits, while Visual Field Test has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Perplexity has a month-over-month growth rate of -3.7%; Visual Field Test has 0%.

### How does pricing compare?

Perplexity: Freemium. Offers a permanent Free tier with unlimited Quick Searches, 3 Pro Searches per day, and 1 Deep Research query per month; Perplexity Pro costs $20/month ($200/year) and Perplexity Max costs $200/month ($2,000/year) for individuals. Team plans start at $40/seat/month ($400/seat/year) for Enterprise Pro and $325/seat/month for Enterprise Max, alongside usage-based Sonar API billing. Visual Field Test: Free. Free for human users; no account fees or paid tiers are advertised for taking the visual field test. The site does charge automated crawlers and scrapers a per-request fee, but that does not affect normal visitors.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Google Gemini](https://openaitools.app/tool/gemini-gemini-advanced) | 2,637,398,242 | -0.1% | Freemium | Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds. | [.md](https://openaitools.app/tool/gemini-gemini-advanced.md) |
| 3 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries. | [.md](https://openaitools.app/tool/claude-2.md) |
| 4 | [Grok](https://openaitools.app/tool/grok) | 203,846,050 | -0.8% | Freemium | Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research. | [.md](https://openaitools.app/tool/grok.md) |
| 5 | [Genspark.ai](https://openaitools.app/tool/genspark-ai) | 10,215,720 | -7.9% | Freemium, Paid, Contact for Pricing | Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine. | [.md](https://openaitools.app/tool/genspark-ai.md) |
| 6 | [Semantic Scholar](https://openaitools.app/tool/semantic-scholar) | 8,198,672 | +5.8% | Free | Offers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries. | [.md](https://openaitools.app/tool/semantic-scholar.md) |
| 7 | [Consensus](https://openaitools.app/tool/consensus) | 6,014,388 | -1.2% | Freemium | Focuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search. | [.md](https://openaitools.app/tool/consensus.md) |
| 8 | [Kagi Search](https://openaitools.app/tool/kagi-search) | 4,647,605 | +3.2% | Free Trial, Paid | Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access. | [.md](https://openaitools.app/tool/kagi-search.md) |
| 9 | [Ubie](https://openaitools.app/tool/ubie) | 2,941,054 | -23.2% | Free | Free AI symptom checker developed by doctors | [.md](https://openaitools.app/tool/ubie.md) |
| 10 | [Doctronic AI Doctors + Human Doctors](https://openaitools.app/tool/doctronic-ai-doctors-human-doctors) | 1,131,516 | -24.8% | Freemium | AI health guidance with licensed doctors on demand | [.md](https://openaitools.app/tool/doctronic-ai-doctors-human-doctors.md) |

---
Source: https://openaitools.app/compare/perplexity-ai-vs-visual-field-test

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)