Comparison

ai chat by api vs PDFnano

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ai chat by api

Features
Read full description

AI Chat by API – Use ChatGPT Plus Without a Monthly Subscription! Description Want to use ChatGPT Plus but don’t want to commit to a monthly subscription? If you only need ChatGPT for occasional use, our app allows you to access ChatGPT through OpenAI’s API – easily, cost-effectively, and without needing any coding skills. With AI Chat by API, users bring their own OpenAI API key and only pay for the API usage directly with OpenAI, saving money and offering unparalleled flexibility. The app does not process any payments or provide API keys – you control everything securely through OpenAI. Key Features Use Your Own OpenAI API Key: Access ChatGPT by entering your API key. Pay as You Go: No need to commit to monthly subscriptions – you only pay OpenAI for what you use. File Text Extraction: Extract text from PDFs and .TXT files, perfect for generating ChatGPT prompts. Seamless ChatGPT Interface: Enjoy an intuitive and clean design to enhance your ChatGPT experience. Copy and Reuse: Easily copy extracted or generated text with one tap. About API Keys and Payments Users must obtain an API key directly from OpenAI's platform. This ensures they have full control over their usage and spending. The app connects to OpenAI’s ChatGPT API, a paid service managed and billed by OpenAI. Payments for API usage are made directly to OpenAI using their supported payment methods. The app does not handle payments or provide external payment links. How It Works: Obtain your OpenAI API key directly from OpenAI’s platform. Add your API key in the app. Start chatting with ChatGPT or extract text from files to use as input for the chatbot. Control costs directly through OpenAI's pay-as-you-go model. Why Choose AI Chat by API? Save money by avoiding monthly subscriptions. Extract and use text directly from files to streamline your prompts. Enjoy full control over your API usage and spending. Download AI Chat by API now and experience the power of ChatGPT in a more flexible and cost-effective way! ******************** AI Chat by API – Use ChatGPT Plus Without a Monthly Subscription! Want to use ChatGPT Plus but don’t want to commit to a monthly subscription? If you only need ChatGPT for occasional use, our app allows you to access ChatGPT through OpenAI’s API – easily, cost-effectively, and without needing any coding skills.

About

PDFnano

Edit, translate, and manage PDF documents with a focus on on-device privacy. This app offers tools for scanning, converting, annotating, and organizing your files locally.

Highlights
  • Read, organize, and manage PDFs
  • Offline PDF translation with layout preservation
  • Scan documents and create PDFs
  • Convert PDFs to Word, Excel, or images
  • OCR for Arabic and English text
  • Add signatures and annotations
  • Remove hidden metadata for privacy
Features
Read full description

PDFnano is a comprehensive, privacy first PDF workstation engineered for iOS. It combines the power of fully offline document processing with the advanced analytical intelligence of Apple Private Cloud Compute PCC. Whether managing contracts, financial reports, academic research, or scanned archives, PDFnano delivers reliable productivity in one unified workspace. Core Capabilities: 1. Document AI Assistant (Beta): • Executive summaries for lengthy reports and dense documentation. • Instant extraction of decisions, next steps, and action items. • Detection and structured review of contractual obligations and legal risks. • Custom interactive inquiries grounded in verifiable verbatim citations. • Private and encrypted processing: Utilizes Apple Intelligence and Apple Private Cloud Compute PCC for complex reasoning, ensuring your document content is never stored, never logged, and inaccessible even to Apple. *Note: AI Assistant features require devices supporting Apple Intelligence and are currently in Beta. 2. Offline Document Translation (Beta): • Translate entire PDF files locally while strictly preserving fonts, layout, tables, and graphic elements. • One tap batch approval for documents up to 100 pages. • Granular paragraph level editing and translation review. *Note: Translation operates locally on device and is currently in Beta. Machine translation may contain errors. 3. High Performance Reading and Navigation: • Vertical fast page scrubber for instantaneous navigation across hundreds of pages with live page bubble indicator. • Seamless alignment with the Dynamic Island, status bar, and notch areas. • Instant viewport settling returning immediately to your exact reading location. • Double tap smart zoom and floating capsule for effortless navigation while zoomed in. • Visual OCR search on scanned documents and images with multi word phrase matching and typo tolerance. 4. Conversion and Document Scanning: • High fidelity PDF to Word docx conversion maintaining structure and typography. • Extract tables into Excel xlsx spreadsheets with automated data type recognition. • Integrated document scanner with perspective correction and edge detection. • Convert images to PDF and export PDF pages as high resolution images. 5. Editing, Signing, and Organization: • Create, place, and verify digital signatures on agreements and official forms. • Markup toolkit: pen, highlighter, sticky notes, and text annotations. • Reorder, rotate, delete, and extract individual pages. • Merge multiple PDF documents or split pages into independent files. • Smart file size compression for seamless sharing. 6. Uncompromising Privacy Architecture: • True local processing: Core reading, editing, translation, OCR, and file conversions execute entirely on device without an internet connection. • Cryptographically secure cloud intelligence: Any internet connectivity required by the AI assistant connects exclusively to Apple Private Cloud Compute PCC with cryptographic privacy guarantees. • Face blurring and visual redaction to shield confidential areas. • Metadata sanitization to strip author, GPS, and creation timestamps. • Document password encryption, AirPrint support, and interactive home screen widgets. Certain tools include daily usage limits in the free version. Unlimited access and pro features can be unlocked through an in app purchase. Standard Terms of Use: https://www.apple.com/legal/sla/

Screenshots

ai chat by api4 screens
PDFnano4 screens

Verdict

The call

The clearest difference is price: PDFnano at Free against ai chat by api's $1.99. ai chat by api's advantage is in-app purchases (none vs 1). On 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

CostPrice · In-app purchases · Ads · Monetization

PDFnano is free to download; ai chat by api costs $1.99 up front. PDFnano sells 1 one-off in-app purchase. ai chat by api asks for nothing beyond the download.

Scorecard2 real differences · 7 level
ai chat by api versus PDFnano: the parameters behind the verdict, then further details
Parameterai chat by apiPDFnano
Price$1.99Free — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.1 — better18.6
Further details — not scored
Size3 MB20 MB
Age rating4+4+
DeveloperINGOAMPTThamer Mohammed

In-app purchases

None

ai chat by api

No in-app purchases

1 purchases

PDFnano

One-time1
  • PDFnano Pro Lifetime$1.99

Questions

Is ai chat by api free?
ai chat by api costs $1.99, with no in-app purchases.
Is PDFnano free?
PDFnano is free to download, with in-app purchases available.
Do ai chat by api or PDFnano have ads?
Neither ai chat by api nor PDFnano shows ads.

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