Comparison

ReadLock vs SPSS File Viewer

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

Head to head
About

ReadLock

This app helps you reclaim your reading time by blocking distracting apps and websites during dedicated reading sessions. It uses AI to score your comprehension based on your notes, ensuring genuine engagement with your reading material. Track progress, manage your book library, and build a consistent reading habit.

Highlights
  • Distraction locking via Screen Time
  • AI comprehension scoring
  • AI summary suggestions
  • Book scanning and search
  • Works with any book format
  • Progress tracking
  • Habit building tools
Features
Read full description

The most successful people in the world read more than everyone else. Yet most of us can't finish a single book, not because we lack time, but because social media, doom-scrolling, and endless notifications keep pulling us away. ReadLock helps you take back your attention. Set a reading session, choose the apps and website categories that distract you most, and ReadLock locks them using Screen Time so your phone stops competing with your book. When your session ends, update your reading progress or notes, and ReadLock's AI scores your comprehension before your apps unlock. No skimming. No faking it. Just real reading. "Just one more scroll" becomes "just one more page." It works with any book format: paperback, hardcover, e-book, or PDF. No special reader required. Key Features * Distraction Locking (Screen Time): Lock selected apps and distracting website categories during your reading sessions. When a locked app is opened, the ReadLock shield screen appears. * AI Comprehension Scoring: After each session, write a short note on what you read. ReadLock's AI compares your notes against your pages and scores your focus and understanding before your apps unlock. You can't fake your way through. * AI Summary Suggestions: Not sure how to capture what you read? ReadLock's AI rewrites your notes into a cleaner, sharper summary — turning scattered thoughts into real understanding. * Book Scanning & Search: Add any book instantly by scanning the cover or searching the title. Your reading journey starts in seconds. * Works with Any Book Format: Track progress and take chapter notes for both physical and digital books. No special reader required. * Flexible Reading Sessions: Set reading windows for morning, afternoon, or evening and build a consistent daily routine. * Progress Tracking: Update pages read, mark chapters as completed, and watch your reading habit grow day by day. * Notes & Key Takeaways: Capture chapter notes and important lessons as you read. AI sharpens them after every session. * Book Library: Add books by scan or search, organize by category, and pick up right where you left off. * Habit Building: Streaks, session history, and gentle reminders to make reading stick as a long-term habit. How to Use ReadLock 1. Sign in with Google or Apple, or continue as a guest—your choice. 2. Add your current book by scanning the cover or searching the title. 3. Tap Locked Apps → Add, grant Screen Time permission, and select the apps, categories, or websites you want to block. 4. Tap Set Daily Reading Target and pick your reading window. 5. When your session is active, opening a locked app shows the ReadLock shield screen. 6. When the session ends, open ReadLock → open your book → add your notes → let AI score your comprehension → tap Save to confirm your reading and unlock your apps. Permissions Screen Time permission is required to enable app and website blocking. Without it, ReadLock will still run but cannot shield distractions. ReadLock uses analytics to improve app performance and user experience. Sign-In Options Google Sign-In, Sign in with Apple, and Guest mode. Ads & Subscriptions Free users may see interstitial ads at certain points. Premium subscribers enjoy an ad-free, fully unlocked experience via in-app subscription. Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ https://readlock.us/agreements/terms/

About

SPSS File Viewer

Features
Read full description

SPSS File Viewer opens SPSS data files right on your iPhone or iPad. No desktop license, no cloud upload, no account — open a .sav file from Mail, Files or AirDrop and see your data in seconds. VIEW YOUR DATA • Fast data grid for thousands of rows and hundreds of variables • Value labels shown inline (toggle raw values any time) • Full variable dictionary: names, labels, types, formats, measurement levels, missing definitions • Value label sets with every code–label pair UNDERSTAND YOUR DATA • Frequencies with percentages, valid/cumulative percent and bar charts • Descriptive statistics: mean, median, quartiles, standard deviation, skewness, kurtosis and more • Histograms and distribution summaries • Weighted statistics — respects the weight variable stored in your file • Split-file analysis by any categorical variable • Filters, sorting, random sampling SHARE AND EXPORT • Export data to CSV or Excel (XLSX) • Copy tables as TSV (paste straight into Google Sheets or Excel) or Markdown • Statistics reports as text, Markdown or PDF • Save filtered subsets back to .sav FILE SUPPORT • SPSS .sav and compressed .zsav • SPSS portable .por • Handles long strings, custom missing values, dates and multi-byte encodings Everything runs on your device. Your data never leaves your phone. Need more than viewing? TRTT — our full SPSS alternative — adds editing, crosstabs, chi-square, t-tests, ANOVA, regression, charts and a real syntax window. Search for "TRTT" on the App Store.

Screenshots

ReadLock4 screens
SPSS File Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: SPSS File Viewer at none against ReadLock's 7. On price, ads, device support and iOS requirement 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. ReadLock sells 7 in-app purchases, starting at $5.99 per 7 days. SPSS File Viewer asks for nothing beyond the download.

Scorecard1 real difference · 8 level
ReadLock versus SPSS File Viewer: the parameters behind the verdict, then further details
ParameterReadLockSPSS File Viewer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhoneiPhone, iPad — better
Requires iOS1717.0
Further details — not scored
Size68 MB6 MB
Age rating17+4+
DeveloperAcha IgweRafal Rybnik

In-app purchases

7 purchases

ReadLock

Subscriptions7
  • ReadLock Premium (weekly)3 Days trial$5.997 Days
  • ReadLock Premium (Monthly)1 Month trial$5.991 Month
  • ReadLock Premium (Monthly)2 Months trial$9.991 Month
Show 4 more
  • ReadLock Premium (Yearly v2)$29.991 Year
  • ReadLock Premium (Yearly)$49.991 Year
  • ReadLock Premium (Yearly)3 Days trial$49.991 Year
  • ReadLock Premium (Yearly)3 Days trial$69.991 Year
None

SPSS File Viewer

No in-app purchases

Questions

Is ReadLock free?
ReadLock is free to download, with in-app purchases available.
Is SPSS File Viewer free?
SPSS File Viewer is free to download, with no in-app purchases.
Do ReadLock or SPSS File Viewer have ads?
Neither ReadLock nor SPSS File Viewer shows ads.

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