PrimeThink vs Aster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrimeThink
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PrimeThink is the AI workspace that keeps your context yours, independent of any single AI provider. Most AI tools capture your institutional knowledge and lock it inside their model. PrimeThink flips that. It sits above the models as a context and reasoning layer, so your workflows, documents, and organisational memory stay with you while you switch freely between Claude, GPT, Gemini, Mistral, DeepSeek, and open-source models. On mobile, that means asking questions of your own data in plain language instead of navigating complex dashboards. Pull up records, capture meetings, and turn them into reusable memory your team can act on later. Full productivity, from your pocket. What PrimeThink solves: - AI fragmentation: one platform instead of a dozen disconnected tools, with a shared workspace where people and AI assistants work together in real time. - Vendor lock-in: a model-agnostic architecture that keeps you free to choose the best model for each task, and to change your mind. - Technical barriers: build working applications by describing them in natural language, no code required, so domain experts create workflows directly. - Context ownership: your knowledge lives in the platform, not the model, giving you a durable layer that outlasts any provider. PrimeThink turns scattered AI usage into a single, governed workspace: collaborative, model-neutral, and built to keep humans in control of the intelligence they use.
Aster
This AI assistant helps you create images from descriptions, understand photos, and generate text for emails, summaries, and plans. It offers natural language conversation and photo analysis to turn your ideas into actionable steps.
- Image generation from text prompts
- Photo editing and style transfer
- Hands-free voice conversations
- Photo and document analysis
- Email drafting and text rewriting
- Translation and summarization
- Project planning and checklists
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Turn an idea into an image, give a photo a new style or find the words you need. Aster brings AI image creation, photo editing, chat and voice conversations together on iPhone and iPad. CREATE IMAGES FROM WORDS Describe a scene, portrait or illustration. Explore different ideas and styles, then refine your request to shape the result. REIMAGINE YOUR PHOTOS Add your own photo and ask for a new look. Try an artistic style or describe the change you want in everyday language. WRITE, LEARN AND PLAN Draft an email, improve a message or brainstorm a caption. Translate text, summarize supported documents and break a plan into manageable steps. Ask questions about a photo to explore what it shows. TALK THROUGH YOUR IDEAS Use voice conversations or dictate a message when you would rather speak. Voice availability and quality vary by language and device. ACCESS AND SUBSCRIPTIONS Free access is limited. Paid plans have request and credit limits. Features depend on your plan and remaining credits. Local prices, billing periods and limits are shown before purchase. Apple subscriptions renew automatically unless cancelled through your Apple Account. You can restore purchases in the app. YOUR DATA Chat history is stored on your device. With your consent, requests, limited conversation context and selected attachments are processed by AI services to provide a response. You can clear history and withdraw AI-processing consent in Settings. AI can make mistakes. Check important information. Aster is not a medical, legal, financial or certified translation service. Image results vary with the request. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: PrimeThink at none against Aster's 4. PrimeThink also leads on ads (none vs shown). Aster's advantage is update cadence (weekly vs every 3 weeks). On price, device support and iOS requirement 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. Aster sells 4 in-app purchases, starting at $11.99 per month. PrimeThink asks for nothing beyond the download.
PrimeThink ships an update every 3 weeks, Aster weekly. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.
| Parameter | PrimeThink | Aster |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 67 MB | 192 MB |
| Age rating | 17+ | 12+ |
| Developer | Novaware Ltd | Illia Pereviazko |
In-app purchases
PrimeThink
No in-app purchases
Aster
- Project Aster Plus$11.991 Month
- Project Aster Pro$24.991 Month
- Project Aster Max$49.991 Month
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- Project Aster Ultra$99.991 Month









