Comparison

Productivity Challenge Timer vs Melendar

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

Head to head
About

Productivity Challenge Timer

This app gamifies productivity by challenging users to work harder and track their habits. Earn ranks, unlock achievements, and monitor your work patterns over time to identify peak productivity periods. It focuses on intense work sessions and detailed time tracking for projects.

Highlights
  • Gamified productivity challenges
  • Rank and achievement system
  • Detailed work habit tracking
  • Project-specific time logging
  • Focus on uninterrupted work sessions
  • Productivity analytics by day/hour
Read full description

Productivity Challenge Timer aims to help you be more productive, more focused, waste less time and so on, you already know all that stuff. What this app is really about is challenging you to work harder and tracking your work habits. You'll earn/lose ranks depending on your performance, earn achievements and track your productivity over time, so you'll know how long you worked on what and during which days of the week and hours of the day you're at your most productive. Now here's a few things you should know before downloading: - This is not an organizer. If you can't keep track of what you're supposed to be doing, this is not the app for you. The app includes tracking of projects so you know how much time you spent working on each of your clients/books/websites/whatever - like a time sheet, but it's not meant to be an organizer or a to-do list. - This app will not let you pause work sessions or finish them early, so if you have a tiny baby-sized bladder and you need to pause every few minutes, this is not the app for you. The shortest work session you can set is 10 minutes and you're not supposed to be interrupted. Besides, I use this app too, and I'd be the first to abuse that pause feature to go look up useless nonsense instead of getting work done. - The purpose of this app is not to promote a healthy work-life balance, but to get you to work harder. Because of this, it does not recognize weekends or holidays or parenting or any other excuse people come up with to take time off, and it will demote you if you start slipping. Please don't expect the app to validate your personal goals, its sole purpose is to make you work harder, even when you shouldn't. That's it, thanks for reading and I hope you find this app as useful as I do.

About

Melendar

Features
Read full description

A shared calendar for couples, with privacy for every event. Bring two schedules into one clear view, count your days together, remember anniversaries and date nights, and plan trips as a team, without giving up control over your own time. NEW: THE US TAB Your life together, pinned in one place. • A days-together counter and your next milestone • Countdowns to anniversaries, birthdays and your next trip • See when you're both free and what's next together • Shared notes, places to go, and the days that matter: first date, moving in, engagement, wedding • Private gift ideas only you can see A SHARED CALENDAR MADE FOR TWO • See both schedules in Agenda, Day, 3 Days, Week and Month views • Create events for yourself or your partner • Add times, places, notes, repeats and reminders, and colour-code events with your own tags • Birthdays, your anniversary and the days that matter show up in Calendar every year PRIVACY FOR EVERY EVENT Choose what your partner can see each time you add a plan: • Together: both of you see every detail and can edit • Shared: your partner sees the details while you stay in control • Busy: only the time is visible; titles, places, notes and people stay private • Hidden: nothing is shared TRIPS, BUILT TOGETHER Turn an idea into a shared day-by-day itinerary. Organize dates, countries, cities, activities, bookings, saved places, travelers, maps and cover photos in one place. Flights keep local times at both ends, bookings keep their confirmation numbers and links, and you can move or duplicate a whole trip in one go. 6 WIDGETS FOR YOUR HOME SCREEN AND LOCK SCREEN • Days Together: every day since you got together • Countdown: days until your anniversary, next trip and pinned moments • My Person: whether your partner is busy or free, and what's next together • Up Next: the next part of your day • Today: a calm view of today's events • Melendar at a Glance: your next event on the Lock Screen MADE FOR EVERY SCREEN Melendar works on iPhone, iPad and iPhone Duo, folded or unfolded, with a seven-day Week view on the big screen. PRIVATE BY DESIGN Your content stays on your Apple devices and in your iCloud account through CloudKit. No ads, no third-party analytics, and no developer-run content database. A private invitation link connects you with one trusted person. SIMPLE, FAIR ACCESS The calendar, the Us tab and connecting with your partner are free. Each person can create three trips and keep three days of their own on Us for free. A one-time Melendar Plus purchase unlocks unlimited trips and days of your own. Your partner can edit a shared trip without buying anything. Plan closer. Share smarter. Keep life in sync with Melendar.

Screenshots

Productivity Challenge Timer4 screens
Melendar4 screens

Verdict

The call

The clearest difference is update cadence: Melendar at every 4 days against Productivity Challenge Timer's every 3 months. Productivity Challenge Timer's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases 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. Productivity Challenge Timer sells 1 one-off in-app purchase and Melendar sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Productivity Challenge Timer ships an update every 3 months, Melendar every 4 days. Both last shipped on November 6, 2026.

Scorecard2 real differences · 8 level
Productivity Challenge Timer versus Melendar: the parameters behind the verdict, then further details
ParameterProductivity Challenge TimerMelendar
PriceFreeFree
Rating4.8 (215 ratings) — better—
Positive reviews95.1% of reviews—
Number of ratings215 — better—
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.6 — better18.0
Further details — not scored
Size25 MB19 MB
Age rating9+4+
DeveloperVladimir JovanovicHongliang Sun

Bugs and requests

Productivity Challenge Timer

Reported bugs

3 issues
  • Occasional sound issues
  • Slow loading of historical data
  • Inconsistencies between iOS and Android versions

Requested features

5 requests
  • Apple Watch support
  • Customizable timer durations
  • Ability to add notes to sessions
  • Weekend/holiday mode to avoid demotions
  • More advanced goal-tracking and analytics

Melendar

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Productivity Challenge Timer

One-time1
  • Pro mode$8.99
1 purchases

Melendar

One-time1
  • Melendar Plus$5.99

Questions

Is Productivity Challenge Timer free?
Productivity Challenge Timer is free to download, with in-app purchases available.
Is Melendar free?
Melendar is free to download, with in-app purchases available.
Do Productivity Challenge Timer or Melendar have ads?
Neither Productivity Challenge Timer nor Melendar shows ads.
Which is updated more often, Productivity Challenge Timer or Melendar?
Productivity Challenge Timer ships an update every 3 months, and Melendar every 4 days. Most recently, Productivity Challenge Timer was updated on November 6, 2026 and Melendar on November 6, 2026.

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