# Lumin: View, Edit, Share PDF — user reviews > 189 indexed App Store user reviews of Lumin by Nitrolabs Limited, rated 4.50/5 from 887 ratings. - Source: https://appshunter.io/ios/app/lumin-view-edit-share-pdf/id1367372862/reviews - App overview in markdown: https://appshunter.io/ios/app/lumin-view-edit-share-pdf/id1367372862.md - Rating breakdown: 5★ 728 · 4★ 46 · 3★ 19 · 2★ 12 · 1★ 82 ## What do users think of Lumin? Overall sentiment: negative **Pros** - 🚀 Smooth performance - 👍 Easy to use - 💡 Useful annotation tools - 🚀 Fast PDF rendering **Cons** - 🐛 Crashes and freezes - 🔒 Unreliable data sync - 💰 Expensive subscription - 🐛 Buggy app experience **Commonly reported bugs** - Lost work and unsaved changes - Inability to open/access files - Frequent login issues - Compatibility problems on mobile **Most requested features** - Offline mode support - Split-screen functionality - Improved highlight/annotation tools - Better Google Drive integration ## Newest reviews (10 of 189) ### 4/5 — Good for schoolwork *2026-05-28, version 5.3.4* This App is good for schoolwork (especially English for me) However the colours in the highlight/draw do not automatically save upon changing which is really annoying because I would like to have the 3-4 colours saved so that I can apply the colour scheme even if I do not finish the annotations in one go Overall nice app - but could do with some minor improvements ### 2/5 — . *2026-01-05, version 4.9.0* - ужасно долго грузит, когда стираешь объект. это очень неудобно и тормозит процесс обучения - невозможно сделать двойной экран, было бы намного удобнее если б эта функция была ### 4/5 — Genial salvo la sincronización con Drive *2025-12-11, version 4.7.0* El programa es soberbio, funciona rápido y súper suave aquí en iPadOS. El problema serio es que al usarlo en sincronía con google drive empiezan a aparecer copias falsas de los documentos. Creo que pueda tener que ver con la copias de seguridad que google va haciendo de los documentos modificados, no lo sé con certeza, pero el caso es que es un verdadero fastidio porque no se puede saber en qué documento se está trabajando, hay que abrirlos y comprarlos con los cual la aplicación pierde su utilidad. ### 1/5 — PDF Editor Scam Marketing *2025-08-08, version 4.3.1* Was searching for online pdf editor. It’s website forced to install app for pdf editing. Whenever i installed app and tried to edit my pdf. It’s saying,, this feature coming soon 🤣🤣🤣 fraud. Totally scam!!! Hate it. ### 1/5 — Ignorance *2025-07-27, version 4.2.0* I applied for the trial which need my credit card number for automatic renewal but when i used the app during the trial period just ONCE and found out the result was not as I expected. I acknowledged I didn't cancel the subscription immediately due to busy schedule and when the trial is expired, they charge the card and ignored when I asked for refund eventho I never used the service after I got charged AT ALL. Couldn't be more disappointed. ### 4/5 — Buena app para estudiantes *2025-07-10, version 4.0.1* Me gusta mucho la app, tiene buenas herramientas para poder estudiar y seleccionar palabreas clave importantes de los textos, lo que si me gustaría es que hubiera un apartado premium para estudiantes que textos de más acceso a otras cosas y que sea más barato porque el premium actual está muy caro pero si llegan a sacar uno para estudiantes con plan anual y con un precio accesible sin duda alguna lo compraría ### 1/5 — impossible to cancel *2025-07-04, version 4.0.0* they make it hard and annoying to cancel. hate this app and service ### 1/5 — Can’t cancel your subscription through the app *2025-06-22, version 3.37.1* Why would you not be able to cancel your subscription through the app? Seems predatory. ### 2/5 — App Simply Doesn’t Work *2025-06-14, version 3.36.0* The app seems to freeze after about 30 seconds in a PDF. If I scroll down, it freezes… if I click one of the buttons in the app, then input goes through but then shortly afterward the app stops responding to any clicks/ inputs. ### 1/5 — Compras fuera de la app *2025-06-03, version 3.35.1* No deja guardar archivos si no se inicia sesión y no deja utilizar aplicaciones de más de 20mb ## Most critical reviews (10 lowest-rated) ### 1/5 — Terrible *2026-07-01, version 5.4.1* To sign a document just once, you’re forced to create an account and input your cc info. This guarantees a free trial. But when you try to cancel it, it’s impossible. Typing out the process requires a a full days work. To keep it short, don’t use ### 1/5 — Actual Thieves *2026-04-17* This is the worst decision you can make. This service costs $30 and they do not let you cancel it. I have tried probably 10 times now and contacted customer service. They tell me it is cancelled but I still get charged $30 a month. You would have more fun and get more use out of lighting $360 on fire once a year. The people who run this company should serve time. **Developer response:** Hi there, I'm sorry to hear about your experience. I would be happy to look into this for you. Please contact me on ella.james@luminpdf.com and I can look into your account and charges to cancel. I look forward to hearing from you. ### 1/5 — They stole my private data. *2026-03-06, version 5.2.2* Don't upload anything, they also withdrew money from my account without my permission. ### 1/5 — Hate this. *2026-02-16, version 5.2.1* Stick with a subscription, can’t figure out how to bleeping cancel it. 😬😡 ### 1/5 — Save your time and space *2026-01-13, version 4.9.1* This app and their website has so much potential and they lack the ability to fix the glitches and lack of fixing everything that is wrong with both. I gave up and I’m switching back to adobe unfortunately. ### 1/5 — Doesn’t save changes *2025-11-15, version 4.5.2* Half of my study guide for an exam was completely gone. It just doesn’t save your work reliably. This was the last straw. Deleting. ### 1/5 — Charges you $30 a month even if you cancel *2025-10-26* DONT USE THIS APP ITS A SCAM! I was attempting the app for combining a document and did not want to sign up for the free trial. I forces you too in order to use the app. Then even after i confirmed I did not have an account with customer support through email, they have been charging me $30 a month behind my back. I don’t even remember giving them my card info. DONT USE THIS APP ITS A SCAM! The craziest part is that they legit told me that I didn’t have an account with them months prior. They thought I would recognize the charges and keep stealing $30 every other month without me knowing. DONT USE THIS APP ITS A SCAM! **Developer response:** We are grateful that you took the time to leave a review. We are truly sorry to read about your negative experience. We treat any claims of unauthorized billing and lack of account transparency very seriously. If you haven't already, please contact Lumin at support@luminpdf.com so that we can look into providing a refund. Thank you for bringing this matter to our attention. ### 1/5 — Annoying and Too Expensive *2025-10-24, version 4.4.0* Wouldn’t let me cancel my free trial as the web browser and app kept crashing when trying to access billing over the course of 2 weeks. $30 a month is too expensive just to sign a document online. I will not be using again ### 1/5 — Could not be worse *2025-10-22* Forced to use it to annotate a pdf for work. Easily the worst, most infuriating app of all time. Just doesn’t work at all and is simply awful. Makes you sign in two hundred times and “create a workspace” instead of just letting me create an account to edit a PDF. All I want to do is use the app but it won’t even let you do that without making you jump through forty hurdles. The annotate pdf function did NOT work and the ui is plain awful and janky. Avoid, avoid, avoid. **Developer response:** We sincerely appreciate you taking the time to share your feedback regarding your experience with Lumin. It sounds like the sign-in and initial workspace setup process caused considerable frustration, making it difficult for you to get straight to editing your PDF. We also note your comments about the annotation function not working and the UI being difficult to use. We have escalated your concerns to the relevant team for their review and investigation. Your detailed input is invaluable as we continuously work to improve the user experience. Thank you once again for your review. ### 1/5 — Buggy as hell - rly bad w/ apple pencil *2025-09-28, version 4.3.5* App occasionally just scrolls off to one side. Editing with the apple pencil is a nightmare, the app switches between allowing you to draw to selecting the most recently drawn items, which is horrible for when you’re writing text/equations as it cuts you off and selects random bits of drawings. ## Most praised reviews (10 highest-rated) ### 5/5 — Works Great *2026-03-02, version 5.2.1* Does exactly what I need. ### 5/5 — In my experience *2026-02-09, version 5.1.0* Best edit app out there!!! Five Stars!!! ### 5/5 — Useful app *2026-01-09, version 4.9.1* Help me a lot with viewing and editing pdf ### 5/5 — BEST PDF EDITOR APP *2026-01-08, version 4.9.0* I like the app very much , it is intuitive, user friendly layout. ### 5/5 — Good app *2025-12-27, version 4.8.0* Good app ### 5/5 — I love Lumin *2025-10-29, version 4.4.0* I use it on my work and it works very well I’m impressed and it’s my first year using it and will be editing again.😃👍🏽 ### 5/5 — Easy to use *2025-09-22* The app is simple and easy to use for editing and signing pdf documents **Developer response:** We really appreciate you taking the time to share your feedback. It's great to hear that you find Lumin simple and easy for editing and signing your documents! Thank you so much for your positive review. ### 5/5 — Love the app *2025-08-20* I love the amount of tools available in this that we can use when annotating our documents. This is especially good for students who are taking notes in class. I love that it also supports Apple Pencil for those who use iPad for note taking or drawing. **Developer response:** Thank you for your review. We're glad to hear that you're finding Lumin's tools helpful for your studies. We appreciate you taking the time to share your experience with us. ### 5/5 — I love this app *2025-08-01, version 4.3.0* Good app ### 5/5 — Good pdf editor *2025-07-11, version 4.0.1* Love it --- *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 2026-08-24.*