Sphere vs Blank Apps
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Sphere
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The multi-model advantage. Every AI model has different strengths. GPT-5 reasons sharply. Claude writes beautifully. Gemini knows the web. Why settle for one? Sphere runs your prompt across up to 4 AI models simultaneously and shows you all the answers in a swipeable carousel, so you can read, compare, and use the best one. MODELS INCLUDED โข OpenAI GPT-5.5 & GPT-5.4 Mini โข Anthropic Claude Opus 4.8, Sonnet 4.6 & Haiku 4.5 โข Google Gemini 3.1 Pro & Gemini Flash 3.5 โข xAI Grok 4 โข DeepSeek R1 KEY FEATURES โข Side-by-side comparison โ see up to 4 models answer your question at once โข Real-time streaming โ answers appear as they're generated โข Voice input โ dictate your prompts hands-free โข Image & file attachments โ share screenshots, documents, and more โข Thread history โ every conversation is saved and searchable SPHERE PRO Unlock all premium models, compare up to 4 at once, and get 500 prompts per month with unlimited threads. Subscriptions are billed through your Apple ID. Cancel anytime in Settings โ Apple ID โ Subscriptions. Privacy Policy: https://mnemosphere.ai/sphere/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Blank Apps
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Blank is a blank page with a genie living in it. Tap the black square and say what you need: โข "A water tracker with a big + button" โข "A groceries list my partner and I can both edit" โข "A pomodoro timer that buzzes when time's up" Your app builds itself in front of your eyes โ and it's real. Your data saves. Your changes stick. Shake your phone whenever you want the genie back: "make the button green", "add a weekly chart", "undo that". Share any app with a link. Friends can use it instantly โ or remix it into their own. No templates. No app store inside the app store. Just you, describing what you want. Blank Pro โ optional subscription Blank Pro raises your daily limit to 500 generations a day, so you can keep building after the free daily allowance runs out. โข Blank Pro Monthly โ auto-renewable subscription, billed monthly โข Blank Pro Yearly โ auto-renewable subscription, billed yearly โข A 3-day free trial is available on both plans Prices are shown in the app before you buy, in your local currency. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription in your Apple Account settings after purchase. Any unused portion of a free trial is forfeited when you buy a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://blank.bodify.bod.ee/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Blank Apps at none against Sphere's 2. Blank Apps also leads on update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. Sphere sells 2 in-app purchases, starting at $7.99 per month. Blank Apps asks for nothing beyond the download.
Sphere ships an update every 3 weeks, Blank Apps every 6 days. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.
| Parameter | Sphere | Blank Apps |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 6 days โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 | 16.0 โ better |
| Further details โ not scored | ||
| Size | 57 MB | 53 MB |
| Age rating | 17+ | 12+ |
| Developer | Rajesh Cherukuri | FEEDOX LLC |
In-app purchases
Sphere
- Premium Monthly$7.991 Month
- Premium Yearly$54.991 Year
Blank Apps
No in-app purchases









