Backplain vs Prism
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Backplain
Access over 30 AI models in one app to get faster, better answers. Compare responses from multiple AI engines side-by-side to instantly find the smartest solution. Boost productivity for research, writing, coding, and more.
- Access 30+ AI models
- Side-by-side response comparison
- Boost productivity
- Affordable subscription
- Private and secure
Read full descriptionHide full description
Backplain – Your All-in-One AI Chat Hub Access 30+ powerful AI models in one place and get better answers faster. Backplain sends your prompt to up to 10 AI engines at once—so you can compare responses side-by-side and instantly pick the smartest solution. Why Backplain? Multiple AI Models, One App: Chat with top AI engines like ChatGPT, PaLM, Llama, and more—all from a single interface. Instant Side-by-Side Comparison: Skip the guesswork. See how different AI models respond and choose the answer that works best for you. Boost Your Productivity: Perfect for research, writing, studying, coding help, brainstorming, decision-making, and idea exploration. One Affordable Subscription: Unlimited access to all AI models for just $9.99/month. No extra tokens or hidden fees. Private & Secure: Built with modern security and privacy practices to help keep your data safe. How It Works Install Backplain Sign up and start chatting Send a prompt Watch up to 10 AI models respond simultaneously Compare answers and pick the best one Backplain is built for students, professionals, creators, researchers, and anyone who wants reliable, high-quality answers—fast. Discover smarter insights, save time, and elevate your workflow with the power of multi-model AI. Start your free trial today and experience AI like never before. We are the Backplane of AI! This application is subject to the standard Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Prism
This app provides a unified workspace for comparing multiple AI models simultaneously. Get synthesized answers, identify model consensus, and view responses side-by-side. It offers focused conversations with individual models and image generation capabilities.
- Compare multiple AI models with one prompt
- Synthesize responses into a combined answer
- View side-by-side model comparisons
- Focused conversations with individual AI models
- Image generation and comparison
- Organize work with projects and history
- Incognito conversation mode
Read full descriptionHide full description
Prism brings leading AI models into one focused workspace. Ask once in Panel to compare independent responses, see where the models agree and disagree, and get a synthesized Combined Answer. Or use Chat for a focused conversation with one model. Compare Claude, GPT, Gemini, Grok, Perplexity, and more. Model availability can vary by plan and service configuration. WHY PRISM - One prompt, many perspectives: ask a panel of eligible models at once. - Blind judging: responses are shuffled and evaluated without model names. - Combined Answer: get a clear synthesis of the strongest ideas. - Consensus and disagreements: quickly understand where answers align or diverge. - Side-by-side responses: inspect every model's full answer yourself. - Best Fit chat: let Prism choose an eligible model, or pick one directly. - Image Compare: generate multiple visual interpretations and choose your favorite; Prism does not score pictures. - Projects and saved history: organize context and return to past work. - Incognito conversations: start a chat that is not saved, synced, or remembered. - Designed for iPhone, iPad, and Mac. Prism runs AI securely on our servers, so there are no provider API keys to manage. PLANS Prism is free to start. A signed-in Free account includes 10 Standard text asks and 1 image generation each month. Prism Pro includes 100 Standard text asks, 25 Frontier text asks, and 10 image generations each month. Monthly and annual auto-renewable subscription options are available. Your localized price is shown before purchase. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. You can manage or cancel anytime in your Apple Account settings. Terms of Use: https://prismpro.ai/terms Privacy Policy: https://prismpro.ai/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: Backplain at 15.1 against Prism's 26.0. On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Backplain sells 2 in-app purchases, starting at $9.99 per month and Prism sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Backplain against 5.0 for Prism. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
| Parameter | Backplain | Prism |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 2 |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 37 MB | 15 MB |
| Age rating | 17+ | 12+ |
| Developer | Backplain Inc. | TRADESTREAKS LLC |
Customer experience
Backplain
Prism
In-app purchases
Backplain
- Backplain Pro Monthly14 Days trial$9.991 Month
- Backplain Pro Yearly1 Year trial$99.991 Year
Prism
- Prism Pro (Monthly)$14.991 Month
- Prism Pro (Annual)$149.991 Year









