PDF Reader & Tools vs DopaDo
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
PDF Reader & Tools
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PDFKit is the privacy-first PDF reader and toolbox that does everything on your device ā no uploads, no accounts, no waiting in line. Open any PDF and read it like a book, with paginated turn animations, sepia/dark backgrounds, font-size and line-spacing controls, bookmarks, and highlights that sync across reading sessions. Or stay in classic document mode for forms, contracts, and reports. Then jump straight into the toolbox: merge multiple PDFs, split a single document by page range, compress a giant scan to email size, convert images to PDF (and PDF pages back to images), rotate, reorder pages, add a password, watermark a draft, or stamp page numbers. Every operation runs locally ā your files never leave your device. BUILT FOR READING ⢠Three reader modes: Document, Book (paginated), Reflow (resizable text) ⢠Five backgrounds: White, Sepia, Gray, Dark, AMOLED Black ⢠Bookmarks and highlights, with one-tap export ⢠Auto-resume where you left off, even across app restarts FULL OFFLINE TOOLBOX ⢠Merge multiple PDFs into one ⢠Split by page range or every N pages ⢠Compress with quality presets (low / medium / high) ⢠Convert images (JPG/PNG/HEIC) to PDF ⢠Convert PDF pages to images ⢠Rotate, reorder, delete pages ⢠Password-protect a PDF ⢠Add watermark or page numbers PRIVACY FIRST ⢠100% on-device processing ā files NEVER uploaded ⢠No account required ⢠No data collection or tracking ⢠Works fully offline LIBRARY YOU'LL ACTUALLY USE ⢠Grid and list views ⢠Filter by recents, favorites, or completed ⢠Sort by name, date, size, or last opened ⢠Search across imported documents ⢠Custom collections for organizing If you've been frustrated by web-based tools that limit free uploads, slow conversion queues, and unclear data policies, PDFKit is the tool you've been waiting for. Read your PDFs, fix your PDFs, and keep them entirely yours. Download PDFKit and own your PDF workflow.
DopaDo
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Built for ADHD brains, not against them. Shrink any habit to a two-minute start, get the win, and keep streaks that forgive you. Forgot to tap yesterday? Mark it done ā it still counts. If every other habit app has made you feel like a failure by day three, you're not the problem. They're built on willpower and perfect streaks. ADHD brains run on something else: a tiny start, an instant reward, and zero shame when life happens. JUST START ā BEAT TASK PARALYSIS Every habit shrinks to a 2-minute version. "Go to the gym" becomes "put your shoes on." One big button. Starting is the whole goal ā and once you start, momentum does the rest. WHAT NOW? ā ONE HABIT, PICKED FOR YOU Some days the list itself is the obstacle. Tap once and DopaDo picks the single habit to start right now, from your own history on your own device: a streak at risk first, then the one you usually do around this hour, then whichever is quickest. It always tells you why it chose that one. GOALS THAT FIT THE HABIT ā 8 GLASSES, 20 MINUTES, 3 PAGES Not every habit is a single tap. Give one a number and DopaDo counts with you ā 3/8 on the habit, on the widget, on your Lock Screen ā and the day completes when you get there. THE DAY YOU FORGOT STILL COUNTS Did it but never tapped it? Open the habit, tap that day, done. Your streak counts it, and a Streak Freeze you spent on it comes back. No begging, no penalty. INSTANT DOPAMINE ā REWARDS YOUR BRAIN CAN FEEL Finish anything and you get a real hit: a satisfying sound, a happy buzz, confetti, and points that tick up. No waiting weeks for a payoff your brain can't picture. STREAKS THAT FORGIVE YOU Miss a day and a Streak Freeze covers it, automatically. Build a streak and you earn more of them. Life happens; your progress shouldn't evaporate because of one bad Tuesday. YOUR WEEK, YOUR DAYS Not every habit is a daily. Set the weekdays each one runs, and the days it's off simply don't count against you. Rest days are rest, not failure. WIDGETS AND SIRI Check a habit off from the Home Screen or Lock Screen without opening the app. Ask Siri "what now in DopaDo" and it will tell you what to start. PRIVATE BY DESIGN No account. No sign-up. No servers. Every habit, every streak and every insight lives on your device and nowhere else. Your patterns are analysed on-device, by your phone, for you. DOPADO PLUS The free app gives you four habits and everything above. DopaDo Plus adds unlimited habits, the Insights screen ā your patterns, your best hours, your real completion rate ā and a companion that grows with you. DopaDo Plus is an auto-renewing subscription: $6.99/month, or $39.99/year with a 7-day free trial. Payment is charged to your Apple Account at confirmation and renews automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kaspar.works/dopado/privacy DopaDo is a habit-support app, not a medical device. It does not diagnose, treat or cure ADHD or any condition. Questions? kaspar.works/dopado/support
Screenshots
Verdict
The clearest difference is in-app purchases: PDF Reader & Tools at none against DopaDo's 2. PDF Reader & Tools also leads on update cadence (daily vs fortnightly) and device support (3 vs 1). On price and ads there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. DopaDo sells 2 in-app purchases, starting at $6.99 per month. PDF Reader & Tools asks for nothing beyond the download.
PDF Reader & Tools ships an update daily, DopaDo fortnightly. Both last shipped on October 11, 2026.
| Parameter | PDF Reader & Tools | DopaDo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily ā better | Fortnightly |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad, iPod ā better | iPhone |
| Requires iOS | 13.0 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 37 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Gunawan Santoso | Kaspar Works, LLC |
In-app purchases
PDF Reader & Tools
No in-app purchases
DopaDo
- DopaDo Plus$6.991 Month
- DopaDo Plus7 Days trial$39.991 Year







