Comparison

Orderly Check Lists vs Memorize Pi Digits

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

Head to head
About

Orderly Check Lists

Organize your tasks and errands with a visually appealing to-do list app. Features smart location-based reminders, cloud sync, and customizable folders for efficient management of your daily activities.

Highlights
  • Visual interface and layout
  • Unlimited folders for categorization
  • Location-based reminders
  • Fast cloud sync across devices
  • Email and automatic cloud backup
  • Recurring to-dos
  • Gesture-based controls
Features
Read full description

Turn chaos into clarity with the most beautiful to-do list app. Enjoy a sleek, clutter-free interface with smart location-based reminders. Quick glance at your to-dos on a unique layout that keeps your day in sight. The App is now updated with great features like "Fast Cloud Sync", that instantly syncs all the to-do lists across devices, ’Today Items’ view, ‘Due Items’, Email Backup, as well as ‘Automatic backup’ of all data on cloud. Key Features 1. Visual interface and layout, provides absolute ease for managing errands and chores. 2. Create unlimited Folders(Categories) to categorize multiple to-do lists under each of them. 3. ’Today items’ view enables you to quickly check of items that are due only today, across all categories. 4. Location based reminders, alerts you of a to-do at a particular location. 5. Email backup and Automatic backup, provides a secure backup of all your data on the cloud. 6. Create Recurring to-dos. 7. Powerful search within a folder or across all folders. 8. Easily re-order items, undo completed items on Today items as well as list notes. 9. ‘Due Items’ folder shows the items that are past due beyond this date. 10. ’New List’ button allows to quickly add a new note instantly from any folder. * * GESTURES * * # Pinch to zoom out. # Swipe left to delete to-do task # Long press to delete or drag and drop to move a to-do list to a different priority # Drag and Drop on the "New" icon to create a copy. # Drag and drop on the "Flip" icon to move it to another folder. ---- Orderly Premium --- Orderly premium features, now has Low light mode and pass-code protection enabled, as part of its In-App purchase. The cost of the In-App purchase is a one time cost of $0.99. Subscription Info Fast Cloud Sync plus Automatic Backup, our paid subscription product, is available for $6.99 per year for annual subscriptions or $2.99 per month for monthly subscriptions. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, with a cost of $6.99 for annual subscription or $2.99 for monthly subscription, as the case may be. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription, where applicable.” Privacy policy and terms of use https://tektontek.com/termsofuse.php STAY UPDATED - Website - https://orderly.tektontek.com/ Twitter - @AppLifeStyle Facebook - facebook.com/tektontek * * * * * MANY FIVE STAR RATINGS * * * * * * What some of our users say ! * @ Simple and Clean These days to do lists are complicated or busy looking. Not this app. So far the best I've used - by raptorpewpewlaser @ Best To Do App Available - Hands Down! This is by far the easiest to use "To do" app I've come across and definitely the most stunning! - Joseph Papino @ Just Right for me With this app I don't procrastinate to create a note due to the quick input set up for doing so. I believe someone had to be smart to create something so simple and straightforward. And, I commend the creator of this app for such a design. @ Great App This app is perfect ! Easy to use and very appealing visually. - Teacherosb @ Truly Original and highly practical My favorite feature is the ability to sync between iPad and iPhone. No more misplaced lists, they are always with me on any of my devices. - Silverstone Many exciting new features coming up. Get Orderly now and experience to-do lists in a whole new way. Once you use Orderly, you will never go back to your regular boring to do list manager!

About

Memorize Pi Digits

This app helps you memorize digits of Pi, offering up to one million digits for practice. It features a dark mode interface and a network competition mode for up to five players. Ideal for educational purposes and memory improvement.

Highlights
  • Memorize up to 1 million Pi digits
  • Dark mode UI design
  • Network competition mode (up to 5 players)
  • Educational game for memory improvement
  • Track progress day by day
Features
Read full description

Pi is constant, it is represented by the Greek letter π. The numerical value of π is 3.1415926....... Pi is infinite series irrational number. From wikipedia: Piphilology is the practice of memorizing large numbers of digits of π, and world-records are kept by the Guinness World Records. The record for memorizing digits of π, certified by Guinness World Records, is 70,000 digits, recited in India by Rajveer Meena in 9 hours and 27 minutes on 21 March 2015. This app is a tool to help you memorize pi digits, we offer first 1 million (1000000) Pi digit. It is the only tools your need to learn Pi. If you want to learn Pi ( π ), it should be the best Pi trainer software. You can learn Pi from 101 to Guinness World Records holder. This game is a very good educational game, learn it day by day. Some days later you will memory a lot of Pi Digit. Many users report that this app can help them to remember pi number, they can't believe that they can remember few hundred digits. But it is real. Every year March 14th is Pi day, to Celebrate Pi Day you can try to remember the first 100 digits. Using our app, you can do it in few hours. The UI design of this game is dark mode, it is the most modern app UI design. You can see the new coming OS also add dark mode theme. Add network competition mode, if all the devices are connected same local area network. You can create a network competition up to 5 people play on same time. FB : https://www.facebook.com/Pi-314-342764079883765/

Screenshots

Orderly Check Lists4 screens
Memorize Pi Digits4 screens

Verdict

The call

The clearest difference is ads: Orderly Check Lists at none against Memorize Pi Digits's shown. Orderly Check Lists also leads on price ($1.99 vs $4.99). Memorize Pi Digits's advantage is review sentiment (74% vs 59%). On rating, ratings volume, update cadence and in-app purchases 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

Orderly Check Lists costs $1.99 and Memorize Pi Digits $4.99 up front. Orderly Check Lists sells 3 in-app purchases, starting at $2.99 per month and Memorize Pi Digits sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for Orderly Check Lists against 4.4 for Memorize Pi Digits. Both are backed by a comparable volume of ratings — 292 and 155 respectively. Written reviews are what separate them: 59% of Orderly Check Lists's written reviews are positive against 74% of Memorize Pi Digits's.

UpkeepUpdate frequency

Orderly Check Lists ships an update every 3 months, Memorize Pi Digits every 5 months. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Orderly Check Lists versus Memorize Pi Digits: the parameters behind the verdict, then further details
ParameterOrderly Check ListsMemorize Pi Digits
Price$1.99 — better$4.99
Rating4.3 (292 ratings)4.4 (155 ratings) — better
Positive reviews59.4% of reviews74.4% of reviews — better
Number of ratings292 — better155
Update frequencyEvery 3 months — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.6
Further details — not scored
Size45 MB103 MB
Age rating4+4+
DeveloperTekton Technologies (P) Ltd.Oscar Tsang

Customer experience

Orderly Check Lists

All ratings292 ratings
Positive84.9%
Neutral4.1%
Negative11.0%
Written reviews298 reviews
Positive59.4%
Neutral13.8%
Negative26.8%

Memorize Pi Digits

All ratings153 ratings
Positive85.0%
Neutral5.2%
Negative9.8%
Written reviews43 reviews
Positive74.4%
Neutral4.7%
Negative20.9%

Bugs and requests

Orderly Check Lists

Reported bugs

4 issues
  • Lists randomly rearranging
  • Reminders not working as expected
  • Inability to restore purchases
  • Incompatibility with older devices

Requested features

4 requests
  • Subtasks and nested lists
  • Customizable themes and fonts
  • Improved location-based reminders
  • Better sync and backup options

Memorize Pi Digits

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Orderly Check Lists

Subscriptions2
  • Automatic Backup Monthly7 Days trial$2.991 Month
  • Automatic Backup Service7 Days trial$6.991 Year
One-time1
  • Orderly Premuim$0.99
1 purchases

Memorize Pi Digits

One-time1
  • Remove AD$1.99

Questions

Is Orderly Check Lists free?
Orderly Check Lists costs $1.99, and also offers in-app purchases.
Is Memorize Pi Digits free?
Memorize Pi Digits costs $4.99, and also offers in-app purchases.
Which has better reviews, Orderly Check Lists or Memorize Pi Digits?
Memorize Pi Digits is rated higher. Orderly Check Lists averages 4.3 out of 5 from 292 ratings, while Memorize Pi Digits averages 4.4 from 155 ratings.
Do Orderly Check Lists or Memorize Pi Digits have ads?
Memorize Pi Digits shows ads; Orderly Check Lists does not.
Which is updated more often, Orderly Check Lists or Memorize Pi Digits?
Orderly Check Lists ships an update every 3 months, and Memorize Pi Digits every 5 months. Most recently, Orderly Check Lists was updated on November 10, 2026 and Memorize Pi Digits on November 6, 2026.

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