Comparison

Weekly Diary vs 100 Days

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

Head to head
About

Weekly Diary

Features
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Diary entries are displayed in a ‘Week to View’ format, showing start time and title. Weekly Diary is automatically synchronised with your Apple Calendar app. Navigation - Tap chevrons to switch back and forth between weeks. Tap ’Select date’ button to locate a specific date. Add new diary entry - Tap on a date header to show a ‘New Event’ form. Selecting ‘All-day’ on the form leaves the start time blank. Edit an existing diary entry - Tap an existing diary entry to display an ‘Edit Event’ form. Day View - Tap on the right chevron on a date header to view the day's appointments in detail. Settings screen - Choose which calendars to display in Weeky Diary. Specify a default event start time and event duration if needed. Help screen - Tap ‘Show help’ on Settings screen to show this information.

About

100 Days

Features
Read full description

Build unbreakable habits and achieve your biggest goals with 100 Days of Challenge. Whether you want to read every day, master a fitness routine, practice mindfulness, drink more water, or break an unhealthy habit, 100 Days of Challenge gives you the visual clarity and motivation to stay consistent. WHY 100 DAYS? Research shows that creating permanent life changes takes time and deliberate focus. An open-ended habit tracker is easy to abandon, but a 100-day commitment gives you a clear finish line: long enough to transform your identity, yet structured enough to stay focused day by day. FEATURES DESIGNED FOR CONSISTENCY: • Minimalist 100-Day Grid: See your entire journey in one glance. Tap once to mark off each day completed. • Custom Challenges: Personalize your habits with unique icons, emojis, and vibrant color themes. • Purpose & Intention: Write down your personal "Why" for each challenge to stay motivated on tough days. • Pure Focus, No Distractions: Clean, distraction-free interface designed to get you in and out in seconds. • Private & Secure: Your habits and personal goals stay completely private on your device. FREE vs. PREMIUM: • Free: Create and track up to 2 active challenges simultaneously. • Premium: Unlock unlimited challenges and support ongoing indie development. Cancel anytime in App Store settings. - Monthly: .99/month - Annual: .99/year (Save over 58%) Start your 100-day transformation today. One day, one mark, one habit at a time. --- Apple Standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hundred-days-of-challenge.vercel.app/privacy.html Additional Terms: https://hundred-days-of-challenge.vercel.app/terms.html

Screenshots

Weekly Diary4 screens
100 Days4 screens

Verdict

The call

The clearest difference is in-app purchases: Weekly Diary at none against 100 Days's 2. 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. 100 Days sells 2 in-app purchases, starting at $4.99 per month. Weekly Diary asks for nothing beyond the download.

UpkeepUpdate frequency

Weekly Diary ships an update every 5 months, 100 Days every 4 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 5 level
Weekly Diary versus 100 Days: the parameters behind the verdict, then further details
ParameterWeekly Diary100 Days
PriceFreeFree
Update frequencyEvery 5 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size1 MB1 MB
Age rating4+4+
DeveloperDavid ClarkRaghav Sharma

In-app purchases

None

Weekly Diary

No in-app purchases

2 purchases

100 Days

Subscriptions2
  • Pro Monthly$4.991 Month
  • Premium$24.991 Year

Questions

Is Weekly Diary free?
Weekly Diary is free to download, with no in-app purchases.
Is 100 Days free?
100 Days is free to download, with in-app purchases available.
Do Weekly Diary or 100 Days have ads?
Neither Weekly Diary nor 100 Days shows ads.
Which is updated more often, Weekly Diary or 100 Days?
Weekly Diary ships an update every 5 months, and 100 Days every 4 months. Most recently, Weekly Diary was updated on October 30, 2026 and 100 Days on November 5, 2026.

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