Synapse Notes vs AI PDF Translate

Synaps Notes is a private, on-device note app built for local AI. Write and organize notes directly on your iPhone. Chat with your own notes and documents using local AI models. Import PDFs, images, and text files with OCR support. Keep your data on-device by default, with optional Google Drive backup. No account is required to use the core features

Translating a PDF used to mean copying text into a browser tab, losing all formatting in the process, then manually fixing terms the translator got wrong. This app handles the whole document at once — keeping the layout as close to the original as possible — so what you get back is actually readable. TRANSLATION ENGINES Free users get Google Translate and Bing. Paid plans unlock GPT-4o, Gemini 2.5 Flash, DeepSeek, and Doubao. For academic papers and technical documentation, DeepSeek and GPT-4o handle domain-specific terminology more accurately. For quick turnarounds on everyday documents, Google is plenty. You choose the engine; you're not locked into one. BILINGUAL MODE When turned on, the original text and translation appear on alternating pages in the same file. Useful for cross-referencing the source, or for anyone studying a foreign language alongside a translation. BACKGROUND PROCESSING Translation runs on the server. Once you submit a file, you can close the app and do something else. You'll get a push notification when it's ready to download — no need to keep the screen on or wait around. WHAT IT HANDLES Academic papers, patent filings, technical manuals, financial reports, legal contracts — if it's a PDF, you can submit it for translation. PLANS · Free: A monthly page allowance that resets each month, Google Translate only · Basic: 150 pages/month, all engines · Pro: 500 pages/month, all engines, priority queue · Credits: No subscription required — buy a block of pages and use them whenever Subscriptions are billed through Apple and can be cancelled at any time in your device settings. Terms of Use: https://pdf.zentools.me/terms