Comparison

PDFCrab vs Habit Tracker

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

Head to head
About

PDFCrab

Features
Read full description

PDFCrab lets you edit PDF files directly on your iPhone — no cloud, no subscriptions, no sign-in required. All processing happens locally on your device. -Forms Fill interactive PDF form fields directly in the app, then export the completed form. -Search in your PDF Search for any word or phrase across your document and replace it in place — the surrounding text keeps its layout. -Highlight text Highlight any passage of text to make it stand out. Choose the highlight color and opacity, then move or remove a highlight at any time. -Smarter text editing Related text now groups into sections, so you can select and edit a whole block at once instead of line by line. -OCR Scan a photo or PDF of a document and PDFCrab recognizes the text on-device, turning it into real, selectable, editable PDF text instead of a flat image. Review and correct recognized text, then save as separate files or merged into one PDF. -Cyrillic, Chinese, Japanese & Korean support Editing text and recognizing text via OCR now correctly handles Cyrillic and CJK scripts, not just Latin — the right font is embedded automatically based on what the text actually contains. -Edit text Tap any text in your PDF to select it, then drag it to a new position or update its content. Choose from 9 bundled fonts or keep the original. Preview font and size live before saving. -Edit images Move, resize, or remove images embedded in your PDF. Drag any corner or edge handle to resize precisely, or pick a quick percentage preset. -Page Tools Add page numbers in the position you choose, rotate any page, and switch between Standard and Letter page sizes — with a one-tap way back to the original size. -Manage Pages Browse a thumbnail grid of all pages to delete the ones you don't need — now extended with Reorder: drag pages into a new order and save when you're ready. -Export Turn any PDF into a TXT file, an audio narration, page images, a Word document, or a PowerPoint — directly on your device. -Password-protected PDFs Open, edit, and save encrypted PDFs. Add, remove, or change passwords. View encryption algorithm, key length, and per-flag permissions. Your password never leaves your device. -Annotate Draw, highlight, and add freehand annotations using Apple Pencil or your finger. -Privacy first PDFCrab never uploads your files. Everything stays on your device.

About

Habit Tracker

Build positive routines and achieve your goals with this daily habit tracker. It offers flexible tracking, progress visualization, and smart reminders to help you stay consistent. Integrates with Apple Health for automatic data syncing.

Highlights
  • Build and quit habits
  • Apple Health sync
  • Customizable schedules
  • Multiple tracking types
  • Progress visualization
  • Streak protection features
  • Built-in focus timer
  • Home and Lock Screen widgets
Read full description

Make today count with Habit Tracker: Planner Routine, a calm daily habit tracker for building routines, reaching goals, protecting focus time, and understanding your progress. Create habits for anything you want to build or quit. Track simple checkmarks, counts, durations, or custom values. Plan routines by day, category, time of day, start date, end date, and custom weekly schedules. See progress without digging. Your Today view shows daily goals, completion rate, category filters, and quick logging in one clean dashboard. Add notes after important completions so your habit history captures the reason behind the result, not just the checkmark. Works with Apple Health. Link supported habits and your progress fills in automatically from the Health app: steps, activity minutes, active energy, sleep, water, heart rate variability, and mindfulness minutes. Values you log in Habit Tracker can be saved back to Apple Health too. Health data only syncs after you grant permission, and sync is included for free. Turn consistency into insight with stats, streaks, heatmaps, and reports. Review weekly, monthly, and yearly progress, spot your best days, compare sleep and hydration trends, and connect mood logs with habit completion to learn what helps your days feel better. Protect your streaks on hard days. Every week of completed days banks a Streak Shield that is spent automatically to save a streak when you miss a day. Skip a day on purpose without losing momentum, or turn on Vacation Mode so nothing breaks while you are away. Get a nudge only when it matters. Smart streak risk alerts warn you in the evening before a streak ends, and an optional evening check-in lists whatever is still open for the day. Both stay quiet when everything is already done. Stay focused with a built-in focus timer. Run timed sessions, save deep work minutes automatically, and attach focus time to any duration habit. Keep habits close with Home Screen and Lock Screen widgets. Check progress, quick-log routines, and keep weekly, monthly, and yearly report widgets visible throughout the day. Built for everyday use: - Build and quit habits - Apple Health sync for steps, sleep, water, mindfulness, and more - Daily, weekday, weekend, and custom schedules - Checkmark, count, duration, and value tracking - Categories for routine, health, fitness, mind, work, and more - Habit templates for walking, water, sleep, meditation, reading, workouts, deep work, and more - Streaks, totals, heatmaps, and completion rates - Streak Shields, Vacation Mode, and streak-safe skip days - Smart streak risk alerts and an evening check-in - Mood logging and daily rewards - Focus sessions with automatic habit logging - Time and location reminders - Widgets for today, progress, and reports - Theme colors, with alternate app icons available in Premium - App Lock, export, and import tools available in Premium Habit Tracker Premium is an optional one-time purchase that unlocks unlimited habits, extra reminders, advanced reports, all widget habits, App Lock, backup/import, and alternate app icons. Your routines should feel clear, motivating, and easy to return to. Habit Tracker helps you notice what is working and keep going, one day at a time.

Screenshots

PDFCrab4 screens
Habit Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: PDFCrab at none against Habit Tracker's 1. On price, update cadence, 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. Habit Tracker sells 1 one-off in-app purchase. PDFCrab asks for nothing beyond the download.

UpkeepUpdate frequency

PDFCrab ships an update every 9 days, Habit Tracker weekly. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 9 level
PDFCrab versus Habit Tracker: the parameters behind the verdict, then further details
ParameterPDFCrabHabit Tracker
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 9 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size132 MB24 MB
Age rating4+4+
DeveloperIllia AbielientsevANDREI RUSTI

In-app purchases

None

PDFCrab

No in-app purchases

1 purchases

Habit Tracker

One-time1
  • Habit Tracker Premium$2.99

Questions

Is PDFCrab free?
PDFCrab is free to download, with no in-app purchases.
Is Habit Tracker free?
Habit Tracker is free to download, with in-app purchases available.
Do PDFCrab or Habit Tracker have ads?
Neither PDFCrab nor Habit Tracker shows ads.
Which is updated more often, PDFCrab or Habit Tracker?
PDFCrab ships an update every 9 days, and Habit Tracker weekly. Most recently, PDFCrab was updated on October 1, 2026 and Habit Tracker on October 15, 2026.

Other comparisons