Comparison

GSDlist vs Whendy Fast Time Planner

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

Head to head
About

GSDlist

This app offers a fresh approach to task management, allowing users to create detailed to-do lists with tags, locations, and team collaboration. It helps organize tasks by time, category, and location to create a focused daily list for efficient productivity.

Highlights
  • Task management with tags
  • Location-based task organization
  • Team collaboration features
  • Categorization of tasks
  • Daily 'Today' list creation
  • Time-based task management
Features
Read full description

A new take on ToDo Lists and task management with tags, locations, verbs, teams, and power. Build a deep list of things you intend to do, and manage them by time, category, and location into a Today list -- Getting' Stuff Done. The author is a veteran Apple developer and built this for his own use, and has over 37,000 closed items in the app, over almost 10 years of use. It's a good app.

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.

Screenshots

GSDlist1 screens
Whendy Fast Time Planner4 screens

Verdict

The call

The clearest difference is in-app purchases: GSDlist at none against Whendy Fast Time Planner's 1. GSDlist also leads on rating (5.0 vs 4.8) and iOS requirement (15.6 vs 17.0). Whendy Fast Time Planner's advantage is update cadence (every 3 weeks vs every 9 months) and ratings volume (11 vs 1). 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. GSDlist asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GSDlist holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Whendy Fast Time Planner has 11 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

GSDlist ships an update every 9 months, Whendy Fast Time Planner every 3 weeks. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

Scorecard6 real differences · 4 level
GSDlist versus Whendy Fast Time Planner: the parameters behind the verdict, then further details
ParameterGSDlistWhendy Fast Time Planner
PriceFreeFree
Rating5.0 (1 ratings) — better4.8 (11 ratings)
Positive reviews—100.0% of reviews
Number of ratings111 — better
Update frequencyEvery 9 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size28 MB3 MB
Age rating4+4+
DeveloperGlenn ReidHannes Oud

Customer experience

GSDlist

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Whendy Fast Time Planner

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GSDlist

No in-app purchases

1 purchases

Whendy Fast Time Planner

One-time1
  • Premium$3.99

Questions

Is GSDlist free?
GSDlist is free to download, with no in-app purchases.
Is Whendy Fast Time Planner free?
Whendy Fast Time Planner is free to download, with in-app purchases available.
Which has better reviews, GSDlist or Whendy Fast Time Planner?
GSDlist is rated higher. GSDlist averages 5.0 out of 5 from 1 ratings, while Whendy Fast Time Planner averages 4.8 from 11 ratings.
Do GSDlist or Whendy Fast Time Planner have ads?
Neither GSDlist nor Whendy Fast Time Planner shows ads.
Which is updated more often, GSDlist or Whendy Fast Time Planner?
GSDlist ships an update every 9 months, and Whendy Fast Time Planner every 3 weeks. Most recently, GSDlist was updated on October 2, 2026 and Whendy Fast Time Planner on October 9, 2026.

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