Second Eye vs Parallax
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Second Eye
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Stop guessing which AI is best - just see for yourself. 2nd Eye runs your question across multiple AI models at the same time and shows you the answers side by side. Compare Claude, Gemini, DeepSeek, and more leading AI models in seconds. WHY 2ND EYE? โข Ask once, get answers from multiple AIs instantly โข Compare text responses and AI-generated images โข Vote on the best answer and build your personal leaderboard โข Daily question mode to make AI part of your routine โข See response time and cost per model (Pro) FREE PLAN 29 credits/month with 3 top AI models - no credit card needed. PRO PLAN 300 credits/month, choose your own models, unlock runtime and cost display. Expand your credits anytime with the Expand Pack. Whether you're a professional, student, or just curious - 2nd Eye helps you get the best answer, not just an answer. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Parallax
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Stop copying the same prompt into different AI apps. Parallax sends your question to ChatGPT, Claude, Gemini, and Grok simultaneously โ then shows you where they agree, where they differ, and why it matters. WHY PARALLAX? Every AI model has blind spots. ChatGPT reasons differently than Claude. Gemini sees things Grok misses. The truth and the full picture is usually in the overlap. Parallax finds that overlap for you. FEATURES Compare AI Models at Once Ask one question. Receive responses from ChatGPT, Claude, Gemini, Grok, and more all running in parallel. No switching tabs. No copying prompts. Consensus Summary See what all models agree on. Parallax synthesizes common patterns across every response so you can find the signal in the noise. Divergence Analysis Find exactly where AI models disagree and what those differences reveal about your question. Useful for research, decision-making, and stress-testing ideas. Side-by-Side Layout A clean, structured interface built for comparison not conversation. Read every AI's take without losing context. Favorites & History Save queries that matter. Revisit previous comparisons across all your devices. Built for Depth Research, writing, brainstorming, studying, professional decision-making Parallax makes your AI workflow sharper and more reliable. WHO USES PARALLAX? Professionals who need AI output they can actually stand behind Researchers verifying facts across multiple AI sources Students cross-checking AI answers before using them Writers seeking the most balanced, complete perspective Anyone who's ever wondered: "What would the other AIs say?" PARALLAX PREMIUM Parallax Premium unlocks: Advanced Consensus Summaries Full Divergence Analysis Expanded history and saved queries Additional AI processing capacity Subscriptions auto-renew unless cancelled at least 24 hours before the current period ends. Manage subscriptions in your Apple ID account settings. IMPORTANT Parallax provides AI-generated informational content. AI responses may contain inaccuracies, incomplete information, or outdated material. Always verify important information independently. Parallax does not provide medical, legal, financial, or professional advice. Privacy Policy: https://www.appparallax.io/privacy Terms of Use: https://www.appparallax.io/terms
Screenshots
Verdict
The clearest difference is ads: Second Eye at none against Parallax's shown. Second Eye also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, update cadence and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Second Eye sells 2 in-app purchases, starting at $3.99 per month and Parallax sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Second Eye ships an update fortnightly, Parallax every 2 weeks. Both last shipped on September 10, 2026.
| Parameter | Second Eye | Parallax |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 2 weeks โ better |
| Ads | No โ better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 15.1 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 34 MB | 23 MB |
| Age rating | 9+ | 17+ |
| Developer | PRAGMATIC TECH INNOVATIONS LTD | Corinth Oร |
In-app purchases
Second Eye
- Pro Monthly$3.991 Month
- Expand Pack$1.99
Parallax
- Weekly Premium$4.997 Days
- Yearly Premium$99.991 Year
Questions
Is Second Eye free?
Is Parallax free?
Do Second Eye or Parallax have ads?
Which is updated more often, Second Eye or Parallax?
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