Comparison

Tasks+Cal+Sync 4 vs To Do List & Habit Tracker

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

Head to head
About

Tasks+Cal+Sync 4

This app synchronizes contacts, tasks, and calendars using the SyncML standard. It's designed for users who need to connect with older systems or specific organizational requirements that rely on this legacy synchronization technology.

Highlights
  • SyncML synchronization for contacts, tasks, and calendars
  • App-internal calendar and task management
  • iOS contact group assignment
  • Acts as a local SyncML server
  • Month, day, week, and list calendar views
Features
Read full description

Please read the following desciption before buying this app! Tasks+Cal+Sync 4 is a niche app, suitable only when you need synchronizing contacts, tasks and calendar with a server or service which uses a standard called SyncML. The app does not support any other synchronisation technology! So please buy this app only if you know for sure that SyncML-based synchronisation is really what you need! This may be the case when the IT people of your organisation say so, and maybe even explicitly recommend using Tasks+Cal+Sync to synchronize calendars, tasks and contacts. In any case, please realize that for using this app, you need to know the URL of your syncml server, the login user to use, and the so called server paths for contacts/tasks/calendar. Only the provider of the SyncML service knows these details and can support you in establishing sync with his SyncML server. We as makers of the SyncML client app cannot! By now, SyncML is a legacy standard. It was invented in 2000, and many of that time's feature phones did support it. Since then, it has been largely superseded by other technologies, most notably CalDAV and CardDAV, which iOS supports out of the box without any extra app. But SyncML still exists, and for some older calendaring systems, it may be the only way to synchronize. For those cases, Tasks+Cal+Sync 4 exists. Tasks+Cal+Sync 4 is a rework of the former Tasks+Cal+Sync app, to allow using SyncML on iOS 10 and later (the original Tasks+Cal+Sync app only works up to iOS 9). But please note that Tasks+Cal+Sync 4 does not provide new features over the original Tasks+Cal+Sync - except for a contact list view with a way to easily assign contacts to groups. Otherwise Tasks+Cal+Sync 4 just carries the original Tasks+Cal+Sync functionality forward to make it usable with iOS10 and later. So now that you are certain SyncML based synchronisation is what you need - here's the summary for Tasks+Cal+Sync 4: • based on a mature and extensively interoperability tested SyncML engine, which powers many SyncML client and server products for different platforms (libsynthesis). • synchronizes app-internal calendar (not the iOS calendar! If you want that, have a look at "SyncML PRO 4"), app-internal tasks (not iOS reminders!) and iOS contacts to a SyncML compliant server or service in the internet or in the local network. • can act as SyncML server in the local WiFi network (e.g. to keep really old mobiles in sync with an iOS device) • has built-in tasks, month, day, week and list views for the iOS calendar (same as in original Tasks+Cal+Sync) • has a contacts list for the iOS contacts, and allows quickly assigning/removing contact group membership (that's a new feature in Tasks+Cal+Sync 4) Please visit the plan44.ch web page (see support link below) for support and FAQ, as well as documentation for download.

About

To Do List & Habit Tracker

Build positive habits and healthy routines to achieve your objectives. This app allows you to monitor any habit, good or bad, with customizable reminder notifications. It features a simple, intuitive design with no sign-up required.

Highlights
  • Habit tracking
  • Reminder notifications
  • Daily to-do lists
  • Goal achievement
  • Simple and intuitive design
Features
Read full description

Habitbybit is a habit tracker app that helps you build good habits and healthy routines to reach your goals. Track any habit good or bad with reminder notifications. No sign up required! FEATURES Reminders Simple design Intuitive use SOME POPULAR HABITS Health: Drink water, 8 hours sleep, take vitamins & more. Fitness: Exercise, stretch, take the stairs & more Hobbies: Play guitar, learn a language, paint & more Education: Learn a language, complete homework, study & more ----- Terms and Conditions: https://saltypistachio.com/habit-tracker-terms-and-conditions/ Privacy Policy: https://saltypistachio.com/habit-tracker-privacy-policy Do you have any questions or suggestions? Please send them to habitracker@saltypistachio.com

Screenshots

Tasks+Cal+Sync 44 screens
To Do List & Habit Tracker4 screens

Verdict

The call

The clearest difference is price: To Do List & Habit Tracker at Free against Tasks+Cal+Sync 4's $14.99. To Do List & Habit Tracker also leads on rating (4.7 vs 1.0) and update cadence (monthly vs every 20 months). Tasks+Cal+Sync 4's advantage is in-app purchases (none vs 4) and iOS requirement (10.0 vs 15.0). On 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

To Do List & Habit Tracker is free to download; Tasks+Cal+Sync 4 costs $14.99 up front. To Do List & Habit Tracker sells 4 in-app purchases, starting at $1.99 per month. Tasks+Cal+Sync 4 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

To Do List & Habit Tracker holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: To Do List & Habit Tracker has 269 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Tasks+Cal+Sync 4 ships an update every 20 months, To Do List & Habit Tracker monthly. The most recent releases landed on October 16, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 3 level
Tasks+Cal+Sync 4 versus To Do List & Habit Tracker: the parameters behind the verdict, then further details
ParameterTasks+Cal+Sync 4To Do List & Habit Tracker
Price$14.99Free — better
Rating1.0 (2 ratings)4.7 (269 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings2269 — better
Update frequencyEvery 20 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS10.0 — better15.0
Further details — not scored
Size8 MB46 MB
Age rating4+4+
DeveloperLukas ZellerThe Salty Pistachio

Customer experience

Tasks+Cal+Sync 4

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

To Do List & Habit Tracker

All ratings269 ratings
Positive93.3%
Neutral4.5%
Negative2.2%
Written reviews10 reviews
Positive50.0%
Neutral40.0%
Negative10.0%

In-app purchases

None

Tasks+Cal+Sync 4

No in-app purchases

4 purchases

To Do List & Habit Tracker

Subscriptions4
  • Monthly$1.991 Month
  • Monthly$3.991 Month
  • Annual7 Days trial$9.991 Year
Show 1 more
  • Annual7 Days trial$19.991 Year

Questions

Is Tasks+Cal+Sync 4 free?
Tasks+Cal+Sync 4 costs $14.99, with no in-app purchases.
Is To Do List & Habit Tracker free?
To Do List & Habit Tracker is free to download, with in-app purchases available.
Which has better reviews, Tasks+Cal+Sync 4 or To Do List & Habit Tracker?
To Do List & Habit Tracker is rated higher. Tasks+Cal+Sync 4 averages 1.0 out of 5 from 2 ratings, while To Do List & Habit Tracker averages 4.7 from 269 ratings.
Do Tasks+Cal+Sync 4 or To Do List & Habit Tracker have ads?
Neither Tasks+Cal+Sync 4 nor To Do List & Habit Tracker shows ads.
Which is updated more often, Tasks+Cal+Sync 4 or To Do List & Habit Tracker?
Tasks+Cal+Sync 4 ships an update every 20 months, and To Do List & Habit Tracker monthly. Most recently, Tasks+Cal+Sync 4 was updated on October 16, 2026 and To Do List & Habit Tracker on October 30, 2026.

Other comparisons