# Caleo—PDF Highlights Organizer > Qualitative research analysis tool for PDF documents. (iPhone/iPad app by Caleo for Qualitative Research, LLC.) - Source: https://appshunter.io/ios/app/caleopdf-highlights-organizer/id1491075028 (this page in markdown: same URL + `.md`) - Developer: [Caleo for Qualitative Research, LLC](https://appshunter.io/developer/1491075027) - Category: Productivity, Education - Price: Free - Rating: 3.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 5 MB - Languages: English - Released: 2020-08-17 - Data updated: 2026-10-29 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/caleopdf-highlights-organizer/id1491075028/reviews.md ## What is Caleo? Caleo gives you the tools to do your best qualitative research. Quickly analyze both textual and visual data. Import, analyze, and synthesize results. Code all your qualitative data with touch. Import PDF sources from interview transcripts to scanned photographs, from book chapters to research articles—every PDF becomes source material to analyze with ease. Create your own themes by name and color, with researcher notes on each. Analyze data by coding the artifacts in your sources. Then visualize your results grouped by themes. Sort artifacts and even recode by simple drag-and-drop. Find what's most salient in your data by word occurrences. Automatically calculate word frequencies of all proper nouns in textual data. Easily view statistics grouped by project, by source, or by theme. Share your projects with colleagues—seamlessly export and import entire projects. Useful to backup and restore projects too. Or share just your analysis by themes, exported as PDFs or easily printed. Securely Synced. All your data synced with your iCloud so it's on all your devices. Example projects included to try out: - Study of University Handbooks - Learning Qualitative Research - Travel Guides Study Caleo is free to use for examples projects, start new projects, add new sources, and view statistics. Subscribe to create more than three themes and start doing your best qualitative research. Terms of Use: https://www.caleo.app/terms-of-use ## Key features - Import and analyze PDF sources - Code qualitative data with touch - Create and color-code themes - Visualize results grouped by themes - Calculate word frequencies - Share and export projects ## Is Caleo safe? Not enough ratings yet to assess Caleo. ## Is Caleo legit? Caleo—PDF Highlights Organizer is no longer available in the App Store. The AppsHunter Legitimacy Score for Caleo is 35 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/caleopdf-highlights-organizer/id1491075028/reviews.md ### 2/5 — Promising but needs work *2021-02-22, version 2020.08.18* I recently paid for the premium version of this app because it seemed promising -- much simpler and more intuitive than NVivo (not to mention a fraction of the cost). But there is no help available, and I can't find a way to contact the developer directly. For some reason, it is not allowing me to select snippets of my PDFs of historical newspapers to code. I realize it might not be able to read the text, but looking at the sample projects it seems like I should be able to draw a box around the part of the file I want to code. ## Frequently asked questions about Caleo ### What is Caleo? Caleo is a productivity app designed to help users analyze qualitative data from PDF documents. It allows for coding, theme creation, and data visualization. ### What kind of data can I import into Caleo? You can import various PDF sources including interview transcripts, scanned photographs, book chapters, and research articles. ### How does Caleo help with analysis? Caleo enables you to code your qualitative data, create custom themes with notes, and visualize your findings grouped by these themes. It also calculates word frequencies for textual data. ### Can I share my research projects with others using Caleo? Yes, you can seamlessly export and import entire projects with colleagues. You can also share your analysis by themes, exported as PDFs or printable documents. ### Is Caleo available on multiple devices? Caleo securely syncs with your iCloud, making your data available on all your supported Apple devices, including iPhone, iPad, iPod, and Mac. ### What are the limitations of the free version of Caleo? The free version of Caleo allows you to use example projects, start new projects, add new sources, and view statistics. To create more than three themes, a subscription is required. ### What is the pricing for Caleo? Caleo is free to use for basic features and example projects. A subscription is needed to unlock advanced features like creating more than three themes. ### How often is Caleo updated? The latest version of Caleo was released on August 19, 2020, with the last update on August 20, 2020. This indicates a recent update history. ## Version history (last 1 release) ### 2020.08.19 — 2020-08-20 Bug fixes and performance improvements ## Apps similar to Caleo | App | Rating | Price | Category | | --- | --- | --- | --- | | [Küçük Adımlar](https://appshunter.io/ios/app/kucuk-admlar/id1631550900) | — | Free | Productivity | | [Flexblocks - Time Blocking](https://appshunter.io/ios/app/flexblocks-time-blocking/id1631938060) | 1.0 (2) | Free | Productivity | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-29.*