ChatPDF AI vs Resum
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ChatPDF AI
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Ask a question. Get answers from your document. Clear summaries for papers, reports and study notes. Upload a PDF, DOCX, PPTX or photo. Ask questions in your own words, get a summary, then turn what you read into study material. β’ Create quizzes and flashcards from your documents. β’ Ask AI to explain charts, tables and visuals. β’ Import PDFs, Word files, slides and photos. Some features and higher usage limits require a ChatPDF Pro subscription. Privacy Policy: https://sauceai.vercel.app/privacy Terms of Service: https://sauceai.vercel.app/tos
Resum
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Some voice notes arrive at the worst possible moment. You are on a train, in a meeting, next to a sleeping baby, or simply not up for four minutes of someone thinking out loud. Share the voice note into Resum and read it instead. TRANSCRIPTS ARE FREE, ALWAYS Every voice note you share becomes text you can read, search, and copy. No minute counter, no account, no limit. Long messages are welcome: a six-minute note takes seconds. Got a burst of them? Share them all at once and they become one conversation, in the order they were sent. A SUMMARY WHEN THE MESSAGE IS LONG Resum also writes a short summary, gathers what you have been asked to do, and lists the questions waiting for an answer. Each task and question carries the speaker's own words, so you can see exactly where it came from. Anything Resum cannot find in the recording is marked as unverified rather than presented as fact β you should not have to answer a question nobody asked. NOTHING LEAVES YOUR IPHONE The transcript and the summary are both computed on this device. Your audio is never uploaded. There is no server to leak it, because there is no server: that is how Resum is built, not a checkbox in its settings. AN ARCHIVE THAT STAYS USABLE Everything you share is kept and searchable by any word that was spoken β accents and case included, so "reunion" finds "reuniΓ³n". Notes are grouped by day and can be filtered down to favourites, to the ones carrying tasks, or to where they came from. Rename any note; star the ones that matter. REPLY IN POINTS Resum drafts a numbered reply to the questions in the voice note, in the language it was spoken β not the language of your phone. It never writes the answers for you. RESUM PRO Transcripts stay free. Pro removes the limit on summaries. Β· Free: five summaries a week, unlimited transcripts. Β· Pro: unlimited summaries. Monthly or yearly, cancel any time in Settings. WHAT YOU NEED TO KNOW BEFORE YOU BUY Β· Transcription works on any iPhone running iOS 26, in more than 50 languages, including Russian, Ukrainian, Polish and Catalan. Β· Summaries use Apple Intelligence and therefore need an iPhone that supports it. They are available in Danish, Dutch, English, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Spanish, Swedish, Turkish, Vietnamese and Chinese. Russian is transcribed but not yet summarised β Apple's on-device model does not support it. Β· The first voice note in a new language downloads that language from Apple, which can take a few minutes. It happens once, and Resum shows the progress. Β· Resum has no recorder and no player: it turns voice notes other people sent you into text you can read. TERMS AND PRIVACY Resum Pro is an auto-renewing subscription, monthly or yearly, at the price shown in the app for your country. It renews until you cancel it in your Apple ID settings, and the App Store handles the payment. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://resum-cyan.vercel.app/privacy-policy
Screenshots
Verdict
The clearest difference is device support: ChatPDF AI at 3 against Resum's 1. ChatPDF AI also leads on iOS requirement (15.5 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. ChatPDF AI sells 5 in-app purchases, starting at $4.99 per 7 days and Resum sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
ChatPDF AI ships an update every 9 days, Resum every 10 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | ChatPDF AI | Resum |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days β better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.5 β better | 26.0 |
| Further details β not scored | ||
| Size | 100 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | nimet oz | Maksim Kuznetsov |
In-app purchases
ChatPDF AI
- Weekly Pro$4.997 Days
- Weekly Pro$6.997 Days
- Monthly Pro$19.991 Month
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- Yearly Pro$44.991 Year
- Yearly Pro$89.991 Year
Resum
- Resum Pro β Monthly$6.991 Month
- Resum Pro β Yearly$39.991 Year








