Reviewers report that the Smallpdf mobile app delivers a generally positive experience, with 69 positive mentions out of 94 total, indicating a strong overall sentiment. Many users praise its intuitive interface, reliable performance, and powerful tools for managing PDFs on the go. However, a notable number of complaints center on recurring technical issues, subscription management, and unexpected charges. The app’s rating has fluctuated over time, dipping to 1★ in April 2026 due to a surge in negative feedback, but rebounding to 5★ in June and July 2026, suggesting recent improvements or a shift in user sentiment. Despite these ups and downs, the majority of users continue to view the app as a dependable and efficient tool for everyday document tasks.

What customers praise

Users frequently highlight the app’s clean design, ease of use, and fast processing times. Many appreciate how simple it is to perform core tasks like compressing, merging, and converting PDFs with just a few taps. Longtime users often express loyalty, citing consistent results and a familiar workflow that matches the web version. The app is especially praised for helping users reduce file sizes and manage scanned documents efficiently.

What customers said:

  • „I've been happily using Smallpdf for ages“ - Trustpilot · 5★ ·
  • „I love this app“ - Google Play · 5★ · · translated · Spanish
    „I love this app“

    Original„Me encanta esta aplicacion“

  • „it simplifies everything in just two steps.“ - Trustpilot · 5★ · · translated · Spanish
    „it simplifies everything in just two steps.“

    Original„te facilita todo en dos pasos.“

Common complaints

Common complaints include app crashes during heavy tasks, such as combining large numbers of images into a single PDF. Several users report that the app freezes or becomes unresponsive, especially after extended use. Others mention difficulties with subscription management, including being unable to cancel or change plans, and frustration over unexpected charges. Some users also note that the app requires a paid subscription for full access, even though it initially appears free.

What customers said:

  • „After a while, it completely stopped working“ - Google Play · 3★ · · translated · French
    „After a while, it completely stopped working“

    Original„après un certain temps ça a complètement cessé de fonctionner“

  • „The application is very good“ - Google Play · 1★ · · translated · Indonesian
    „The application is very good“

    Original„Aplikasinya sangat bagus“

  • „The application is indeed comprehensive, but it would be nice to be able to use it when…“ - Apple App Store · 1★ · · translated · French
    „The application is indeed comprehensive, but it would be nice to be able to use it when needed.“

    Original„L’application est en effet complète mais encore faudrait il pouvoir l’utiliser quand on en a besoin.“

How it has changed over time

The app’s performance and user satisfaction have shown clear shifts over time. Ratings dropped sharply in April 2026, with a single 1★ review citing a complete failure to function, and earlier months like November 2025 also saw low scores due to bugs and crashes. However, from June 2026 onward, the app regained strong support with multiple 5★ reviews, suggesting recent fixes or improvements. The fluctuating ratings reflect ongoing challenges with stability and user trust, despite overall positive sentiment.

What customers said:

  • „No possibility of a permanent purchase for the Pro version“ - Google Play · 1★ · · translated · French
    „No possibility of a permanent purchase for the Pro version“

    Original„Pas de possibilité d'achat définitif pour la version Pro“

  • „you have to uninstall the application“ - Google Play · 1★ · · translated · Indonesian
    „you have to uninstall the application“

    Original„harus di uninstal aplikasinya“

  • „When trying to combine 150 photos into a PDF, the application closes.“ - Apple App Store · 1★ · · translated · Polish
    „When trying to combine 150 photos into a PDF, the application closes.“

    Original„przy próbie połączenia 150 zdjęć w pdf aplikacja się zamyka“

Practical takeaways

For users considering the app, it’s important to be aware of the subscription model and potential billing issues. While the app offers powerful tools and a smooth experience, users should carefully review payment terms and ensure they can cancel if needed. It’s also wise to avoid entering payment details if not ready to commit. Overall, the app remains a top choice for mobile PDF management, especially for those already familiar with the Smallpdf ecosystem.

What customers said:

  • „Do not enter your card in the app if you don't want surprise charges.“ - Google Play · 1★ · · translated · Spanish
    „Do not enter your card in the app if you don't want surprise charges.“

    Original„No ingresen su tarjeta en la app si no quieren cobros sorpresa“

  • „An application that takes money from you“ - Apple App Store · 1★ · · translated · Italian
    „An application that takes money from you“

    Original„Applicazione che ti prende soldi“

  • „Please refund my money“ - Apple App Store · 1★ ·

Over time

Rating trend: 2.3 in 2025-08 to 4.2 in 2026-07.1.01.52.02.53.03.54.04.55.02025-082026-012026-07
Rating trend: 2.3 in 2025-08 to 4.2 in 2026-07.
Data as table
Monthly average rating
MonthAvg. ratingCount
2025-082.333
2025-095.002
2025-105.001
2025-112.004
2025-125.001
2026-015.002
2026-024.147
2026-034.502
2026-041.001
2026-055.002
2026-065.0010
2026-074.205

Sentiment over time

Sentiment over time: positive share from 33% (2025-08) to 80% (2026-07).0%25%50%75%100%2025-082026-012026-07
Sentiment over time: positive share from 33% (2025-08) to 80% (2026-07).
Data as table
Monthly sentiment (shares)
MonthPositiveNeutralNegativeCount
2025-0833%0%67%3
2025-09100%0%0%2
2025-10100%0%0%1
2025-1125%0%75%4
2025-12100%0%0%1
2026-01100%0%0%2
2026-0286%0%14%7
2026-03100%0%0%2
2026-040%0%100%1
2026-05100%0%0%2
2026-06100%0%0%10
2026-0780%0%20%5

Customer voices

Short excerpts - full reviews are available at the original source.

„Very good application“

★★★★☆Google PlayTranslated· SpanishOriginal
„muy buena aplicación“

„improve the application's speed, reliability, efficiency, and security with artificial intelligence and precision“

★★★★★Google PlayTranslated· ItalianOriginal
„migliorare la applicazione velocità affidabilità efficienza sicurezza con intelligenza artificiale e precisione“

„I appreciate the application.“

★★★★☆Google PlayTranslated· FrenchOriginal
„j'apprécie l'application“

„very good application“

★★★★★Google PlayTranslated· FrenchOriginal
„très bonne application“

„Through the three free trials, I notice that the application is pleasant and easy to use“

★★★★★Apple App StoreTranslated· FrenchOriginal
„Au travers des trois essais gratuits, je constate que l’application est agréable et simple d’utilisation“

„the application is quite simple and straightforward to use“

„Excellent application“

„I feel it is a trustworthy application with strong features and excellent results.“