Comparison

Whendy Fast Time Planner vs ScheduleViewer

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

Head to head
About

Whendy Fast Time Planner

This app helps you avoid being late by calculating when to start each task for an event. Simply input your target completion time and the duration of each step, and it will provide a clear schedule.

Highlights
  • Calculate start times backwards from a target time
  • Input task durations
  • View start and end times for each step
  • Import events from calendar (Premium)
  • Export activities to calendar (Premium)
  • Share plans as formatted text
Features
Read full description

When should you get started? Just ask Whendy. No more time math: Start with a target time and then work your way back. It’s that simple! Time math is hard Do you sometimes get started too late? Ever arrived late to an appointment? Almost missed a flight? Or unnecessarily waited at the gate for hours? Sometimes you know when you need to be done, and you know how long each step takes. But it’s hard to do the math in your head and know when to start. Whendy makes it easy! Why Whendy? For many daily tasks, a proper project planner is overkill, a calendar seems clumsy, and a to-do list won’t tell you when. Whendy is a simple, clean, text-based way to plan out when to start each needed activity to arrive on time for your crucial event. It’s easy to make a plan Check out the screenshots and you’ll get it right away. Just type in your target time (when will your flight board?), and list the durations of steps before (from airport to gate 90 min, get parking 45 min, …, pack 60 min). Done! Whendy tells you when each step will begin and end, and when to start with step 1. Is Whendy for you? • Are you frustrated by time math where you are adding or subtracting times? • Do you like the effectiveness of a to-do list? • Do you like to keep it simple yet well thought-through? Then yes, Whendy is for you! *Whendy Premium*  • import events from your calendar. Quickly start a new plan without typing in the starting or ending time • export activities back to your calendar.  Premium is free for the first couple of uses so you can try it out without committing to anything. Additional ways to use Whendy Find out when you’ll be done • Type in "now" to insert the current time • Add tasks + durations • See when each step will begin and end, and when you’ll be done with everything Create a meeting agenda • Type in start time + duration of each segment • Done! Can we squeeze it in • You already have a plan for the day but new tasks pop up • Draft out your day to help you prioritize Share your plans • Send your plan as a nicely formatted text • Your friend or partner can stick to your mutual plan Created with love Whendy has been crafted with care. Hannes, its sole developer, has spent years refining it in daily use, before deciding to share it with you. It has helped with getting to countless appointments on time, juggling family life and chores as well as making the best use of weekends considering all family members’ needs.

About

ScheduleViewer

Features
Read full description

ScheduleViewer is the companion app for Provider Schedule Calendar. Instantly view the master schedule in real-time, with automatic updates as changes occur. Includes a print feature for easy schedule sharing or posting.

Screenshots

Whendy Fast Time Planner4 screens
ScheduleViewer3 screens

Verdict

The call

The clearest difference is in-app purchases: ScheduleViewer at none against Whendy Fast Time Planner's 1. ScheduleViewer also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (15.6 vs 17.0). On price, 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. Whendy Fast Time Planner sells 1 one-off in-app purchase. ScheduleViewer asks for nothing beyond the download.

UpkeepUpdate frequency

Whendy Fast Time Planner ships an update every 3 weeks, ScheduleViewer every 5 days. The most recent releases landed on September 8, 2026 and September 13, 2026 respectively.

Scorecard3 real differences · 7 level
Whendy Fast Time Planner versus ScheduleViewer: the parameters behind the verdict, then further details
ParameterWhendy Fast Time PlannerScheduleViewer
PriceFreeFree
Rating4.8 (11 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size3 MB3 MB
Age rating4+4+
DeveloperHannes OudMarlix Holdings, LLC

In-app purchases

1 purchases

Whendy Fast Time Planner

One-time1
  • Premium$3.99
None

ScheduleViewer

No in-app purchases

Questions

Is Whendy Fast Time Planner free?
Whendy Fast Time Planner is free to download, with in-app purchases available.
Is ScheduleViewer free?
ScheduleViewer is free to download, with no in-app purchases.
Do Whendy Fast Time Planner or ScheduleViewer have ads?
Neither Whendy Fast Time Planner nor ScheduleViewer shows ads.
Which is updated more often, Whendy Fast Time Planner or ScheduleViewer?
Whendy Fast Time Planner ships an update every 3 weeks, and ScheduleViewer every 5 days. Most recently, Whendy Fast Time Planner was updated on September 8, 2026 and ScheduleViewer on September 13, 2026.

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