Comparison

Pdf Studio vs SinceWhen

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

Head to head
About

Pdf Studio

Features
Read full description

Listen and read books and great stories together with Pdf Studio. Now you can listen to a good book even when you can’t pick one up—on your commute to work, when training at the gym, while folding laundry, when traveling or any other time. It's always good and more interactive when you listen what you read. Pdf Studio App is very useful for reading novels, ebooks, syllabus books, etc... Pdf Studio makes any time a story time with great audible functionality of reading pdfs. Pdf Studio is fastest, smallest and simplest of all its kind. Why use Pdf Studio? 1. Listen with text 2. Makes your pdf audible 3. Change Language anytime 4. Jump directly to a particular page 5. Play and pause anytime 6. Full screen view for easy reading 7. Change text size as per your need

About

SinceWhen

Effortlessly track irregular tasks and chores without the pressure of daily streaks. Record events with a tap, receive gentle reminders, and visualize your progress with smart intervals and custom charts. Keep your mind clear by letting the app manage your unique rhythms.

Highlights
  • Zero-friction logging with widgets
  • Gentle, custom nudges and offline reminders
  • Smart intervals and dynamic sorting
  • Visual history with auto-scaling charts
  • Total customization with colors and emojis
  • 100% private and secure, on-device data
Features
Read full description

Stop asking, "When did I last do that?" Standard habit trackers demand daily streaks. But real life doesn't happen every 24 hours. You change the AC filter, wash the pillows, get sick, and track your cycle when it actually happens. When you try to log these irregular events in a normal app, they break your streak and hit you with a red ring of failure. SinceWhen is the "anti-streak" day counter. No guilt, no daily pressure. Just a quiet, stress-free timeline of your actual life. NEW: TRACK MULTI-DAY DURATIONS Not everything happens in a single moment. SinceWhen now supports logging durations from start to finish. • Private Period Tracking: A secure, bloat-free way to track your cycle. No pink themes, no accounts, no data harvesting. • Health & Sickness: Log exactly how many days a fever, migraine, or cold actually lasted. • Travel & Breaks: Track vacations, digital detoxes, or multi-day fasting. Just tap to start and tap to end. Your home screen tracks the current day (e.g., "Day 3"), and your interval charts will elegantly shade the entire duration. TRACK ANY IRREGULAR ROUTINE We built this for the messy, easy-to-forget maintenance tasks that streak-based apps ignore. • Home Maintenance: AC filters, deep cleaning the fridge, washing bedsheets, checking smoke detectors. • Plant & Pet Care: Unpredictable watering schedules, repotting, flea and tick medication, grooming. • Car & Life Admin: Oil changes, tire rotations, haircuts, dental visits. • Health & Self-Care: Irregular vitamins, pain relief, eye drops, replacing contact lenses. • ADHD-Friendly: A zero-shame, zero-streak visual history for executive dysfunction. SMART PREDICTIONS & INSIGHTS You don’t have to set a rigid schedule. • Learns Your Real Rhythm: Our Pattern-Aware engine calculates your natural intervals. If your routine shifts, SinceWhen instantly recognizes your new rhythm and adjusts expectations. • Interactive Calendar: Tap any day on your Insights grid to see exactly what you did and the notes you left. • Due at a Glance: See what is expected today, tomorrow, or overdue via smart, zero-pressure nudges. • Custom Time Display: Tailor exactly how time is counted—choose strict 24-hour periods or calendar midnights crossed. LOG IT IN SECONDS When your hands are full, you don’t want to tap through an app. • Interactive Widgets: 1-tap logging directly from your Home Screen or Lock Screen. • Siri Integration: Just say, "Hey Siri, log the fridge cleaning," and it saves in the background. • Apple Shortcuts: Build custom automations, or trigger logs from Back Tap. YOUR DATA, IN YOUR HANDS Your life is private, and your data stays on your device. • 100% Private: No accounts, no logins, zero data tracking. • iCloud Sync: Seamlessly syncs your logs, pins, and hidden items across your iPhone and iPad. • Direct File Access: Auto-backups save directly to your iCloud Drive Files folder (SinceWhen_Latest.json) so you can build your own custom scripts. SINCEWHEN PRO Start completely free. Track your first 3 events forever, no credit card needed. Upgrade to unlock unlimited events, full iCloud sync, Siri logging, and interactive insights: • Monthly: Includes Apple Family Sharing. • Yearly: Includes Apple Family Sharing (Best subscription value). • Lifetime: A simple one-time purchase to own it forever (Family Sharing not included). With Family Sharing (Monthly/Yearly), your entire household can track chores, pet care, and home maintenance together—each using their own Apple ID, keeping everything fully private. Privacy Policy: https://devapt.com/sincewhen/privacy Terms of Use: https://devapt.com/sincewhen/terms

Screenshots

Pdf Studio4 screens
SinceWhen4 screens

Verdict

The call

The clearest difference is in-app purchases: Pdf Studio at none against SinceWhen's 3. Pdf Studio also leads on iOS requirement (15.5 vs 17.6). SinceWhen's advantage is ads (none vs shown) and update cadence (every 9 days vs every 3 weeks). On price 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. SinceWhen sells 3 in-app purchases, starting at $4.99 per month. Pdf Studio asks for nothing beyond the download.

UpkeepUpdate frequency

Pdf Studio ships an update every 3 weeks, SinceWhen every 9 days. The most recent releases landed on September 23, 2026 and October 9, 2026 respectively.

Scorecard4 real differences · 6 level
Pdf Studio versus SinceWhen: the parameters behind the verdict, then further details
ParameterPdf StudioSinceWhen
PriceFreeFree
Rating—4.3 (13 ratings) — better
Positive reviews—87.5% of reviews
Number of ratings—13 — better
Update frequencyEvery 3 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better17.6
Further details — not scored
Size57 MB10 MB
Age rating4+4+
DeveloperSatyam SahuBasharath Shaik

In-app purchases

None

Pdf Studio

No in-app purchases

3 purchases

SinceWhen

Subscriptions2
  • SinceWhen Pro + Family (Monthly)$4.991 Month
  • SinceWhen Pro + Family (Yearly)$19.991 Year
One-time1
  • SinceWhen Pro (Lifetime)$39.99

Questions

Is Pdf Studio free?
Pdf Studio is free to download, with no in-app purchases.
Is SinceWhen free?
SinceWhen is free to download, with in-app purchases available.
Do Pdf Studio or SinceWhen have ads?
Pdf Studio shows ads; SinceWhen does not.
Which is updated more often, Pdf Studio or SinceWhen?
Pdf Studio ships an update every 3 weeks, and SinceWhen every 9 days. Most recently, Pdf Studio was updated on September 23, 2026 and SinceWhen on October 9, 2026.

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