CELUM vs Paperless 24
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CELUM
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CELUM: Digital Asset Management in Your Hand Whether you're at a trade fair, visiting a customer or simply out and about, with CELUM’s mobile app you not only have fast and convenient access to your content, it makes sharing from your mobile device a breeze. ACCESS On the go with your mobile device in hand, access your content with CELUM. Search and filter relevant content to download to your device. SHARE With your mobile device, use share assets via instant messaging, social media or email, etc. UPLOAD Take images/videos with your mobile device. Immediately upload it to CELUM without having to wait or transfer them to a PC/MAC. TAG With just a few taps of your fingers, apply metadata to make assets easily searchable for your colleagues to start working on them now. BENEFITS AND FEATURES Instant Content Access with Your Mobile Device Just opening CELUM gives you instant access to all your assets stored on our platform. Be it JPEGs, PSD, PowerPoint, videos, audio files etc., freely search for what you want and never come up empty of the content you need. YOU'VE FOUND IT - NOW SHARE IT Sort your assets according to specific criteria like last modified, date created, asset name or asset size in a dropdown menu in ascending or descending order. If you know exactly what you are looking for, just put in the full-text search term. Once you have what you need, select it and download it to your device. Share it via email, social media, WhatsApp or wherever you need. UPLOAD AND ADD METADATA Have some exciting photos, videos, or documents to share right now? No problem. Open CELUM and add them straight to our platform. But don't just dump those new additions in there. Tag and assign metadata. The unique description makes the assets you uploaded easier to find, filter and manage within your organization’s content system. Doing your future self a favour when you need to go back and find the content to use later. To use this app your company must be a CELUM customer. You must be an authorized user with login credentials.
Paperless 24
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Paperless 24 puts your document archive on your iPhone and iPad. The app talks straight to your own paperless-ngx server — no detour through someone else's cloud, no subscription, no account with us. SCAN AND FILE • Document scanner with edge detection, multi-page • Photos and PDFs from your library or the Files app • Drive a network scanner over Wi-Fi (AirScan/eSCL, 300 dpi) • Batch scan: feed a whole stack at once — the app splits it into separate documents, and one tap corrects a wrong split • Send anything into the archive from any other app via the share sheet NAMED FOR YOU • The magic wand reads the first page and suggests title, correspondent, type, tags and date • Missing correspondents, types and tags are created along the way • It all runs on device — the text never leaves your iPhone FIND • Full-text search across the recognised text of every document, with search history • Filter by tag, correspondent, type, date range and custom fields • Load, apply and create saved views from your server • Spotlight: your documents show up in iOS search • Ask your archive: put a question in your own words and get an answer with its sources READ AND EDIT • PDF view with search hits highlighted • Recognised text in reading mode: warm paper tone, serif type, adjustable size • Phone numbers, links and addresses are tappable • Summary at the press of a button • Translate with no connection needed • Change title, date, correspondent, type, ASN, tags and custom fields • Add and delete notes • Create, list and revoke share links STAY ON TOP OF IT • Inbox as its own tab, with a badge • Swipe to tag, edit or delete • Multi-select: set a tag or correspondent on many documents at once • Manage tags, correspondents and types — nested tags included • Trash with restore and permanent delete • Custom fields of every kind: text, number, date, select, yes/no, monetary, document link OFFLINE • Download everything and read it with no connection • Edits and uploads are queued and sent automatically once you are back • Storage use always visible, single files removable MULTIPLE ACCOUNTS • As many servers and users as you like, with separate data per account • Face ID or Touch ID lock • Two-factor sign-in (TOTP) • Credentials live in the iOS keychain ON EVERY DEVICE • Widget with your latest documents or an overview • Siri and Shortcuts: scan, search, open inbox, ask your archive • A notification when new post lands in the inbox • Three-column layout on iPad • Settings kept in sync across devices via iCloud • Six colour themes, a free accent colour, OLED black, five alternative app icons • German, English, French, Spanish, Italian, Dutch WHAT YOU NEED Paperless 24 is a client app. You need your own paperless-ngx server (version 2.x through 3.0.x). Without one, try the demo mode with sample data at any time. PRIVACY The app only ever talks to your server. No tracking, no ads, no analytics, no relay servers. Summaries, suggestions and translations run on device.
Screenshots
Verdict
The clearest difference is price: CELUM at Free against Paperless 24's $1.99. CELUM also leads on iOS requirement (15.0 vs 18.0). Paperless 24's advantage is update cadence (weekly vs monthly). On ads, 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
CELUM is free to download; Paperless 24 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CELUM ships an update monthly, Paperless 24 weekly. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.
| Parameter | CELUM | Paperless 24 |
|---|---|---|
| Price | Free — better | $1.99 |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 14 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | celum gmbh | Thomas Dillmann |
In-app purchases
CELUM
No in-app purchases
Paperless 24
No in-app purchases









