Chat Go AI vs Sphere
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Chat Go AI
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Introducing Chat Go AI, the ultimate solution for organising your conversations and chats. Our app is built on top of our powerful API, which allows you to easily create, manage, and organize your dialogs in folders. With Chat Go AI, you can keep all of your conversations in one place and easily access them whenever you need to. Whether you're managing multiple projects, keeping up with friends and family, or collaborating with colleagues, our app makes it easy to stay on top of your conversations. Chat Go AI offers a variety of features to help you stay organised and efficient. You can create folders to group related conversations, customise your chat settings, and even set reminders to follow up on important messages. Whether you're a busy professional, a social butterfly, or just someone who likes to stay organized, Chat Go AI has everything you need to keep your conversations under control. Download the app today and start chatting with ease!
Sphere
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The simplest way to experience the worldβs best AI models on iPhone. Why choose between ChatGPT, Claude, and Gemini when you can have all of them in one place? Sphere is designed from the ground up for iOS, giving you an effortless, iPhone-first experience with zero technical friction. NO SETUP. NO API KEYS. JUST PURE SIMPLICITY. Most multi-model tools feel like complicated developer playgrounds. Sphere is different. There are no API keys to configure, no confusing parameters, and no cluttered web views. Just open the app, type or speak your prompt once, and watch top frontier models generate answers side-by-side in real time. DESIGNED EXCLUSIVELY FOR IPHONE β’ Native iOS Experience β Clean dark interface, smooth gestures, and responsive haptics built for your thumb. β’ Swipeable Comparison β Effortlessly swipe through answers from GPT, Claude, Gemini, Grok, and DeepSeek. β’ Voice Dictation β Speak your ideas hands-free on the go. β’ Multimodal Attachments β Seamlessly attach photos, documents, and screenshots for instant analysis. β’ Thread History β Keep every multi-model conversation organized, searchable, and saved. THE FRONTIER MODELS INCLUDED: β’ OpenAI: GPT 6.1 Sol, GPT 6 Luna β’ Anthropic: Claude Opus 5.5 & Claude Sonnet 5.5 β’ Google: Gemini 3.1 Pro & Flash 3.8 β’ xAI: Grok 4.7 β’ DeepSeek: R1 Reasoning FREQUENTLY ASKED QUESTIONS Why use Sphere instead of a single AI app? Every model has unique superpowers. GPT excels at logical reasoning and structured formatting. Claude produces nuanced, natural writing. Gemini has unparalleled live web awareness. DeepSeek provides deep mathematical step-by-step thinking. Sphere lets you cross-check and pick the best answer every single time. Do I need my own API keys? No. Sphere handles all model access under one simple subscription. You never have to create developer accounts or manage API credits. How does the subscription work? Sphere requires an active Sphere Pro subscription (available monthly or annually at a 43% discount). Your subscription gives you full access to all frontier models, parallel multi-model streaming, and file attachments with no token calculations or surprise bills. SPHERE PRO Upgrade to Sphere Pro for complete access to frontier models, side-by-side multi-model streaming, and advanced document analysis. Subscriptions are billed securely through your Apple ID and can be managed or canceled anytime in your iPhone Settings β Apple ID β Subscriptions. Privacy Policy: https://mnemosphere.ai/sphere/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
Chat Go AI and Sphere are too close to call on the numbers: across 5 compared parameters β price, update cadence, in-app purchases and device support among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Chat Go AI sells 3 in-app purchases, starting at $9.99 per 7 days and Sphere sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
Chat Go AI ships an update every 4 weeks, Sphere every 3 weeks. Both last shipped on October 25, 2026.
| Parameter | Chat Go AI | Sphere |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Every 3 weeks β better |
| Ads | β | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod β better | iPhone |
| Requires iOS | 15.2 β better | 16.4 |
| Further details β not scored | ||
| Size | 83 MB | 57 MB |
| Age rating | 4+ | 17+ |
| Developer | Pavlo Stupak | Rajesh Cherukuri |
In-app purchases
Chat Go AI
- Weekly Pro3 Days trial$9.997 Days
- Monthly Pro Tariff$24.991 Month
- Yearly Pro Tariff$89.991 Year
Sphere
- Sphere Pro: Compare AI Models$7.991 Month
- Sphere Pro: Multi AI Copilot$54.991 Year









