PBuilder vs PromptSmith
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PBuilder
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PromptBuilder brings AI prompt creation, image generation, and image editing into one streamlined creative workflow. When you are not sure what to write, guided questions help organize your idea into a clearer prompt for AI image and video tools. Review prompts for different models, generate images in the app, and continue with template-based image or photo editing. Key features • Create prompts for AI image generation • Plan prompts for AI video generation • Organize ideas with guided chat • Review prompt output for multiple AI models • Generate images inside the app • Edit images and photos with templates • Save history and resume previous work • Follow a clear credit-aware generation flow Great for • Writing stronger AI image prompts faster • Creating AI art and social media visuals • Planning detailed video-generation prompts • Moving from prompt creation to image editing in one app • Comparing prompt styles across AI models Turn your idea into a structured prompt and generated image with less friction using PromptBuilder.
PromptSmith
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PromptSmith is an app that automatically generates “optimized prompts” to help you get more accurate and higher-quality responses from AI. Simply enter your question, and the app creates professional-grade instructions that anyone can use—no expertise required. In addition, nothing you type is ever sent outside the app. All processing is completed locally on your device, ensuring safe and secure use. ■ Key Features • No login required — start immediately No account creation, email registration, or setup needed. Just open the app and use it instantly. • Automatically generates optimized prompts from your input Your text is transformed into clear, structured instructions that AI can easily understand, improving response accuracy. • Professional-level prompts for beginners Even without prompt engineering knowledge, anyone can produce high-quality prompts that draw out precise AI responses. • Works with any AI service—not only ChatGPT Compatible with Claude, Gemini, Copilot, LINE AI chat, and most AI platforms. Simply copy and paste the generated prompt.
Screenshots
Verdict
The clearest difference is in-app purchases: PromptSmith at none against PBuilder's 3. PBuilder's advantage is update cadence (every 4 days vs every 6 weeks). On price, ads, 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. PBuilder sells 3 in-app purchases, starting at $5.99 per month. PromptSmith asks for nothing beyond the download.
PBuilder ships an update every 4 days, PromptSmith every 6 weeks. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.
| Parameter | PBuilder | PromptSmith |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 6 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 18.5 |
| Further details — not scored | ||
| Size | 38 MB | 5 MB |
| Age rating | 17+ | 12+ |
| Developer | BySho2 | AKIRA SASAKI |
In-app purchases
PBuilder
- Light Plan$5.991 Month
- Basic Plan$9.991 Month
- PremiumPlan$14.991 Month
PromptSmith
No in-app purchases









