Comparison

On Top To vs Kase₄

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

Head to head
About

On Top To

This app helps you become a "list person" with a minimalist design and intuitive swipe interface for organizing and prioritizing tasks. It's designed for those who struggle with organization and procrastination, consolidating all your to-dos into a single list.

Highlights
  • Minimalist design
  • Intuitive swipe prioritization
  • Single master to-do list
  • Customizable task highlighting
  • Organize life and work
Features
Read full description

Have you always wanted to be a "list person" but never been able to make the habit stick? Do existing systems for managing time and getting things done seem great, but not match the way you think and organize? Have you tried and failed repeatedly to organize life and work with planners, bullet journals, and complex workflow apps? On Top will make YOU into a "list person" with its minimalist design and intuitive swipe method for organizing and prioritizing. On Top is THE master to do list app for the messy, disorganized, and procrastinators among us. There's just one list for EVERYTHING. Move every single thing you need to do, buy, or remember from your brain into On Top. When it's time, swipe right and the tasks will go to the top (and stay at the top) where they'll be highlighted in a color of your choosing. At the grocery store? Swipe right on all the groceries. Just get to your desk for the workday? Swipe right on all the tasks you intend to tackle this day.

About

Kase₄

This app allows you to create and manage your own personal databases on your device. It offers flexibility in designing structures to track anything important, with features like inter-linked data, full-text search, and various field types. Your data remains private and accessible offline.

Highlights
  • Design custom databases
  • Inter-linked data
  • Full-text search with NLP
  • Multiple field types
  • Markdown support
  • Passcode and biometric lock
  • Data visualization (Formatters)
  • OCR for text recognition
Features
Read full description

Kase exists because it should. There should be a database app that can go anywhere with you. It should be: • Simple — Using it should be easy and intuitive, • Flexible — Once familiar with the basics, you can design any database to track anything important to you, and • Relational — Inter-linked data is an order of magnitude more useful. Plus, you don't want to repeat yourself. Additionally, it should be: • Personal — You should not need to worry about who can peek into your data, and • Always Available — High-speed wireless network should *not* be a prerequisite for accessing your own data. Structured data at your fingertips. Something like that didn't exist, so I started creating Kase in 2014. Basic Concepts: • Your Kase contains Boxes. • Each Box stores Decks that can relate to each other. • A Deck collects similarly structured Cards. • And a Card is where you put data Entries. Features: • Pick, assign, and organize with Categories, Tags, and Marks. • Search by name, notes, full text, or keywords: Full-text indexing with Natural Language Processing. • Highlight any Box, Deck, Card, Entry, or Keyword. • Deck definitions support inheritance! • Field types include Text, Number (with Unit), Money (with Currency), Date/Time (with Time Zone), Choice, Boolean, Link, Picture, and Document. - complete with multi-level auto-conversion • Write in Markdown and see rich formatted text. • Box can be locked with a passcode, and unlocked with Face ID or Touch ID. • Formatters (Fx) to visualize data in different ways without altering the data one bit. e.g. Unit Converter, NameMapper, WordScrambler, ICU Transformers... • Side-by-Side: Compare Cards easily by displaying in columns. • On-device Text Recognitions (OCR) for multiple languages. • Import/Export in CSV, JSON, or KASE. • Complete Backup & Restore. • iPad Multitasking support: Split View, Slide Over, etc. • Very customizable UI with custom locales What Kase Can't Do: - Cloud sync is not done yet (stay tuned...) What Kase Can Do: > From Data to Wisdom > Data ▹ Information ▹ Knowledge ▹ Wisdom 1. Store Data — the objective truths. 2. Organize Information — to reflect circumstances and current condition. 3. Systematically retrieve Knowledge — utilized for decision-making. 4. And that hopefully enables you to grasp Wisdom, comprehend insights, and ultimately create value. There are databases that belong to the Big Guys. The rest of them should stay personal. By now, you should realize how valuable your data is. So why give it away? Kase keeps your data yours. See www.wisd.com/kase for more details. Terms of Use (EULA): https://www.wisd.com/kase/eula

Screenshots

On Top To4 screens
Kase₄4 screens

Verdict

The call

On Top To and Kase₄ both sit at 5.0 stars, but that hides the real split: 93% of On Top To's written reviews are positive against 0% of Kase₄'s. On Top To also leads on price ($1.99 vs $9.99) and in-app purchases (none vs 4). On rating, update cadence, ads and monetization model 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

On Top To costs $1.99 and Kase₄ $9.99 up front. Kase₄ sells 4 one-off in-app purchases. On Top To asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for On Top To against 5.0 for Kase₄. That said, the two scores are not equally well evidenced: On Top To has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 93% of On Top To's written reviews are positive against 0% of Kase₄'s.

UpkeepUpdate frequency

On Top To ships an update every 3 months, Kase₄ every 2 months. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
On Top To versus Kase₄: the parameters behind the verdict, then further details
ParameterOn Top ToKase₄
Price$1.99 — better$9.99
Rating5.0 (10 ratings)5.0 (2 ratings)
Positive reviews92.9% of reviews — better0.0% of reviews
Number of ratings10 — better2
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size22 MB17 MB
Age rating4+4+
DeveloperUnsquander LLCKenneth Wong

Customer experience

On Top To

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews14 reviews
Positive92.9%
Neutral7.1%
Negative0.0%

Kase₄

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

On Top To

No in-app purchases

4 purchases

Kase₄

One-time4
  • Tip: Dollar$1.00
  • Tip: Coffee$2.00
  • Tip: Coffee, CA$4.00
Show 1 more
  • Tip: Caffè Mocha$5.00

Questions

Is On Top To free?
On Top To costs $1.99, with no in-app purchases.
Is Kase₄ free?
Kase₄ costs $9.99, and also offers in-app purchases.
Which has better reviews, On Top To or Kase₄?
On Top To and Kase₄ are both rated 5.0 out of 5 on the App Store, from 10 and 2 ratings respectively.
Do On Top To or Kase₄ have ads?
Neither On Top To nor Kase₄ shows ads.
Which is updated more often, On Top To or Kase₄?
On Top To ships an update every 3 months, and Kase₄ every 2 months. Most recently, On Top To was updated on October 24, 2026 and Kase₄ on October 24, 2026.

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