Comparison

Nitro PDF Pro vs Transpa Event

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Nitro PDF Pro

Edit, annotate, and secure PDF documents on the go. This app offers powerful tools for professionals to manage PDFs, including mobile scanning and AI-powered data extraction. Seamlessly integrate with cloud services and use styluses for precise markups.

Highlights
  • Edit and annotate PDFs with precision tools
  • Organize pages, merge, and extract PDFs
  • Mobile scanning with OCR for searchable PDFs
  • Secure documents with password protection
  • AI-powered data extraction from tables
  • Seamless integration with cloud storage
Features
Read full description

Nitro PDF Pro is the modern PDF solution with everything you need to edit, annotate, manage, and secure documents on the go. Built for professionals who need powerful PDF tools anywhere, anytime. Create, edit, and manage PDFs seamlessly across iPhone and iPad. Nitro PDF Pro integrates with Apple's Files app and your favorite cloud services—iCloud Drive, OneDrive, Box, Dropbox, Google Drive and more—so your documents are always within reach. Work with Apple Pencil or Bluetooth styluses for freehand drawing, writing, and annotating, and use mobile scanning to turn receipts and documents into PDFs. GET MORE DONE WITH NITRO'S POWERFUL PDF FEATURES EDIT AND ANNOTATE Highlight, underline, draw, add text, and leave comments on any PDF with precision tools designed for touch and Apple Pencil. • Edit text and images with full-page paragraph reflow • Add sticky notes, text edits, and freehand drawings • Highlight and underline key passages • Mark documents with stamps such as Approved or Draft PAGE MANAGEMENT Organize your documents your way. • Add, delete, reorder, and rotate pages • Extract specific pages into a new document • Merge multiple PDFs and documents into a single file MOBILE SCANNING Turn paper into searchable PDFs instantly. • Scan documents, receipts, and business cards directly on your device • Automatic edge detection and perspective correction • Turn scanned documents into searchable, editable PDFs with OCR • Batch scan multiple pages in one session SECURE AND PROTECT Keep every document, and everything inside it, safe with password protection, encryption, and permission controls. • Password-protect files and restrict copying or editing • Permanently redact sensitive information AI-POWERED PRODUCTIVITY Get AI tools built for privacy and control, so you can boost productivity without compromising security. • Automatically extract structured data from tables and forms SEAMLESS INTEGRATION Work where you work, with the tools you trust. • Open PDFs directly from the Files app, OneDrive, and SharePoint • Share via AirDrop, Mail, or third-party apps • Access your documents across iPad and iPhone with iCloud sync Try Nitro PDF Pro for free with a 14-day trial and see why it's the PDF editor for professionals who need to create, edit, and collaborate on PDFs with confidence—from the office to anywhere. Questions about Nitro PDF Pro? User Guides give you step-by-step instructions for editing, annotating, scanning, securing, and managing documents. Get instant support via our in-app Knowledge Assistant or connect directly with our expert team.

About

Transpa Event

Features
Read full description

Organiser un événement à plusieurs, c'est réunir de l'argent — et devoir en rendre compte. TranspaEvent remplace les carnets, les feuilles de calcul et les récapitulatifs envoyés chaque soir sur WhatsApp par un registre partagé que chacun consulte en temps réel. COMMENT ÇA MARCHE Un responsable enregistre les cotisations reçues et les dépenses engagées. Tous les membres voient les mêmes chiffres, mis à jour à l'instant. Personne ne peut modifier un montant sans que cela apparaisse. CE QUE VOUS POUVEZ FAIRE • Enregistrer les cotisations en dollars ou en francs congolais — le montant reçu et le taux appliqué sont conservés, chacun retrouve la somme qu'il a donnée • Répartir la saisie entre plusieurs personnes : trésorier et collecteurs peuvent enregistrer depuis Kinshasa, l'Europe ou ailleurs • Distinguer ce qui est engagé de ce qui est payé : l'écran affiche l'argent en caisse, les sommes déjà promises et ce qui reste réellement disponible • Photographier les justificatifs de dépense • Choisir qui voit quoi grâce aux groupes de visibilité : la famille proche n'a pas les mêmes accès que les connaissances • Échanger dans une discussion réservée aux membres • Diffuser une annonce à tout le monde en une fois • Recevoir une notification à chaque mouvement • Obtenir à la clôture un rapport PDF horodaté, adapté au groupe de chaque destinataire AUCUN PAIEMENT DANS L'APPLICATION TranspaEvent n'encaisse ni ne transfère aucun fonds. L'argent reste entre les mains du trésorier de l'événement. L'application sert uniquement de registre : elle note ce qui a été reçu et dépensé en dehors d'elle, pour que chacun puisse le vérifier. POUR QUI Pour les familles et les communautés qui organisent des funérailles, un mariage, un baptême ou toute collecte solidaire — sur place comme dans la diaspora. Née d'une histoire vraie : trois fichiers Excel envoyés chaque jour depuis Kinshasa, salués par tous pour leur transparence. TranspaEvent en fait un outil.

Screenshots

Nitro PDF Pro4 screens
Transpa Event4 screens

Verdict

The call

The clearest difference is in-app purchases: Transpa Event at none against Nitro PDF Pro's 2. Transpa Event also leads on update cadence (every 2 days vs every 2 months) and iOS requirement (15.0 vs 26.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nitro PDF Pro sells 2 in-app purchases, starting at $19.99 per year. Transpa Event asks for nothing beyond the download.

UpkeepUpdate frequency

Nitro PDF Pro ships an update every 2 months, Transpa Event every 2 days. The most recent releases landed on October 30, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
Nitro PDF Pro versus Transpa Event: the parameters behind the verdict, then further details
ParameterNitro PDF ProTranspa Event
PriceFreeFree
Rating3.9 (161 ratings) — better—
Positive reviews12.3% of reviews—
Number of ratings161 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size63 MB20 MB
Age rating4+4+
DeveloperNitro Software, Inc.HIGH VISION IN INFORMATION OF TECHNOLOGY NETWORKS

Bugs and requests

Nitro PDF Pro

Reported bugs

19 issues
  • Cannot reorder PDF files
  • Crashes when opening PDFs from websites/email
  • Does not save markups or documents
  • Difficulty creating new folders
  • Cannot rotate pages
Show 14 more
  • Cannot markup/draw on PDFs with editing disabled
  • Does not save documents after editing
  • Cannot rotate PDFs
  • Program freezes up
  • Fails to save after deleting pages
  • App crashes after update
  • Editing is lost prior to crash
  • Crashes every time to edit a PDF
  • Cannot handle deleting pages
  • Crashes when opening fillable PDFs
  • Crashes when typing in fields
  • No Apple Pencil support
  • Stylus link gives 404 error
  • Bugs like suddenly not being able to draw

Requested features

10 requests
  • Keyboard support (Cmd + F for search)
  • Ability to cancel search with Esc
  • OCR and conversion to text documents on tablets
  • User manual for iPad app
  • Support for Apple Pencil
Show 5 more
  • Ability to create table of contents
  • Ability to create fillable forms
  • Ability to rearrange pages
  • Ability to add to library
  • More intuitive interface

Transpa Event

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Nitro PDF Pro

Subscriptions1
  • Annual Subscription14 Days trial$19.991 Year
One-time1
  • Nitro PDF Pro for iOS$9.99
None

Transpa Event

No in-app purchases

Questions

Is Nitro PDF Pro free?
Nitro PDF Pro is free to download, with in-app purchases available.
Is Transpa Event free?
Transpa Event is free to download, with no in-app purchases.
Do Nitro PDF Pro or Transpa Event have ads?
Neither Nitro PDF Pro nor Transpa Event shows ads.
Which is updated more often, Nitro PDF Pro or Transpa Event?
Nitro PDF Pro ships an update every 2 months, and Transpa Event every 2 days. Most recently, Nitro PDF Pro was updated on October 30, 2026 and Transpa Event on October 6, 2026.

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