Ai Gravity vs Compress PDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ai Gravity
This AI assistant helps you chat, generate and edit images, analyze documents, and browse the web. It offers powerful AI tools in a simple interface for everyday tasks, with free and unlimited Pro options.
- AI chat for questions and writing
- Image generation from text
- Image editing
- Document and photo analysis
- Web browsing mode
- Voice input
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Ai Gravity is your all-in-one AI assistant for iPhone — chat, create images, edit photos, analyze documents, and work smarter in one beautifully designed app. Whether you need quick answers, creative visuals, or help understanding a PDF, Ai Gravity brings powerful AI tools together in a simple experience built for everyday use. FREE FEATURES • AI chat for questions, writing, brainstorming, translation, and step-by-step help • Image generation from text descriptions • Image editing — upload a photo and describe the changes you want • Document and photo analysis (PDF, CSV, images) • Web browsing mode for up-to-date answers • Voice input (optional, with your permission) • Chats, collections, and gallery saved privately on your device Free users receive a limited number of AI uses. Upgrade to Pro for unlimited access. AI GRAVITY PRO — AUTO-RENEWING SUBSCRIPTION Unlock the full Ai Gravity experience with unlimited access to: • Unlimited AI chat • Unlimited image generation • Unlimited image editing • Unlimited document and photo analysis • Web browsing mode • Priority responses Subscription options (prices may vary by region): • Pro Weekly — $4.99 per week • Pro Monthly — $19.99 per month • Pro Yearly — $59.99 per year Payment is charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel subscriptions in Settings > Apple ID > Subscriptions after purchase. PRIVACY & AI DATA SHARING Ai Gravity asks for your explicit permission before sending any content to third-party AI services. You can review providers, models, and your sharing preference anytime in Settings > Review AI Data Sharing. AI features may send text, images, voice transcriptions, and document content to third-party AI providers to generate responses you request. Chats and creations are stored locally on your device. Privacy Policy: https://agarsupaya.com/gravity-ai-privacy.html Terms of Use: https://agarsupaya.com/gravity-ai-terms.html Support: agarsupaya@icloud.com
Compress PDF
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Compress PDF — Shrink File Size, 100% On Your Device Is a PDF too large to email, upload, or submit? Compress PDF reduces file size in seconds, right on your iPhone or iPad — without ever sending your document to a server. COMMON PROBLEMS THIS SOLVES - An application portal rejects your file for exceeding its size limit - A form, registration, or submission system caps uploads at a few MB - Your email provider blocks large attachments - A scanned document or photo-heavy PDF is taking up way too much storage - You just want a faster, lighter file to share If any of that sounds familiar, Compress PDF fixes it in a few taps. 100% OFFLINE — NOTHING IS EVER UPLOADED Unlike most PDF compressor apps, which quietly send your files to a server to process them, Compress PDF works entirely on-device. Your contracts, IDs, scans, and personal documents never leave your phone. No account, no sign-up, no cloud dependency — just fast, private compression, even with no internet connection. 5 COMPRESSION LEVELS — PICK ONE, OR TAKE FULL CONTROL - High Quality — light compression, virtually no visible quality loss - Medium — balanced size reduction - Standard (Recommended) — a smart default so you don't have to think about it - Low Quality — maximum size reduction when you need the smallest file possible - Custom — full manual control over JPEG quality, image resolution/DPI, color mode (grayscale or black & white), metadata removal, thumbnail removal, and font optimization — with a live estimated size preview as you adjust Most competing apps give you a single "compress" button and hope for the best. Compress PDF gives you a real dial when you need one, so you can hit an exact size target for a strict upload portal instead of guessing. BATCH COMPRESS MULTIPLE PDFs AT ONCE Select several files and compress them together in a single batch job. A dedicated progress screen shows the true status of every file — waiting, compressing, done, failed, or skipped — instead of one vague spinner. When it's finished, Share All or Export All bundles every result into a single zip so you're not tapping through separate share sheets one file at a time. HANDLES PASSWORD-PROTECTED PDFs Locked PDF? The app detects it and asks for the password instead of silently failing partway through. A COMPLETE PDF WORKFLOW, NOT JUST A COMPRESSOR - Built-in viewer to preview any PDF before or after compressing — vertical or book-style scrolling, pinch-to-zoom, rotate, jump-to-page, print, and share - Export or Save to any location you choose — not locked into app-only storage - History tracks every compression with before/after size and % saved, searchable by name, with quick re-share, re-export, or delete BUILT FOR EVERYONE Available in 20 languages with full right-to-left support for Arabic and Urdu. Light, dark, and system themes, each fully designed. Set your default compression level once so returning visits don't require re-picking settings. WHO IT'S FOR - Students and professionals submitting documents with a strict size cap - Anyone emailing large scans, reports, or contracts - People freeing up storage without sacrificing document quality - Power users who want manual control over DPI, quality, and color — not just a black-box "compress" button Compress PDF is free to use, with ads. Pro is an auto-renewable subscription (in-app purchase) that removes all ads and lifts the batch-size limit for unlimited files per batch — support ongoing development and get early access to new features. Download Compress PDF and shrink your files in seconds — privately, offline, and exactly the way you want. Terms of use: https://codifyappsprivacy.blogspot.com/p/terms-of-use.html
Screenshots
Verdict
The clearest difference is ads: Ai Gravity at none against Compress PDF's shown. Compress PDF's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support 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. Ai Gravity sells 3 in-app purchases, starting at $4.99 per 7 days and Compress PDF sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
| Parameter | Ai Gravity | Compress PDF |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | — | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 33 MB |
| Age rating | 17+ | 4+ |
| Developer | Tri Noviantoro | Muhammad Awais Younas |
In-app purchases
Ai Gravity
- Fable AI Pro Weekly$4.997 Days
- Fable AI Pro Monthly$19.991 Month
- Fable AI Pro Yearly$59.991 Year
Compress PDF
- Premium Week$2.997 Days
- Premium Month$7.991 Month
- Premium Year$49.991 Year









