Comparison

Oovium vs DoChecklist

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

Head to head
About

Oovium

This app is a novel calculation sandbox that combines the functionality of calculators, spreadsheets, concept maps, and programming languages into a single, visually intuitive interface. It aims to make complex computing abilities accessible to a wider audience through explicit visual representations.

Highlights
  • Calculation sandbox
  • Visual programming interface
  • Spreadsheet functionality (GridBub)
  • Concept mapping (TextBub)
  • Custom function definition (MechBub)
  • Object instances (InstBub)
Features
Read full description

Oovium makes my geek heart flutter. - Anne Wind This app is a thing of beauty. - W Smith Jr Wow I love this - OkeyMor57 22nd century calculating - bill knighton This will become Hari Seldon’s Prime Radiant some day. - nicked off Oovium is not an attempt to rehash old outdated inventions, but it subsumes much of their functionality. The calculator, spreadsheet, concept map, programming language: Oovium is all of them and it's none of them. Oovium is the first (but certainly not the last) of an entirely new class of app, the calculation sandbox. It has been made possible by the invention of the touch device and Oovium's clean, efficient and tactile interface, designed for such devices, has been part of its DNA since its inception. At its heart, Oovium aspires to make powerful, sophisticated and complex abilities (such as those currently available only to programmers) accessible to a wider audience. Oovium understands that increasing accessibility does not mean dumbing down an application by hiding complex functionality, it means making that complex functionality understandable by creating explicit visual representations for it. The workspace of Oovium is a two-dimensional surface known as the Aether. Upon this aether a user can place Bubbles. There are currently four types of bubbles: - InstBub is an instance of an object, usually a number, which in turn may be the result of an expression. - MechBub allows the user to define their own functions. - GridBub allows for a tabular arrangement of numbers and expressions similar to a spreadsheet. - TextBub is a node that can be connected to other TextBub nodes in order to create concept maps. These bubbles can be connected to each other in order to render sophisticated calculations in a visual (and aesthetic) way. Libraries of custom functions can be developed and included in other aethers when needed. The concept of Oovium has six different aspects; in its current form it contains only one of these six aspects. It is a highly ambitious project with much more planned, that hopes to empower users; it hopes to change the way people think about and work with their computers; in short, it hopes to change the world! Come help drive its functionality; come help make Oovium happen!

About

DoChecklist

Features
Read full description

DoChecklist is a clean, focused checklist app for routines you want to complete the same way every time. Create checklists for everyday tasks, recurring workflows and procedures, travel, home projects, hobby routines, equipment setup, study plans, packing lists, cleaning schedules, inspections, and anything else where missing a step can slow you down. DoChecklist keeps the experience simple: open a checklist, go through the items, and clearly see what is done. Share checklist as PDF. Build checklists that match how you work. Add folders to organize related checklists, add sections inside a checklist, and group items by topic or stage. A travel folder might include Packing, Documents, Home Before Leaving, and Return Checklist. A home folder might include Weekly Cleaning, Plant Care, Garage Tasks, and Maintenance Checks. A work folder might include Meeting Prep, Publishing Steps, QA Review, or Client On-boarding. Some routines need flexibility. Others need a strict order, for example Aviation Checklist. DoChecklist supports both. For flexible lists, you can check items in any order. This is useful for shopping, packing, chores, errands, and project notes. For ordered checklists, items must be completed step by step. This is useful for setup routines, review processes, maintenance flows, and repeatable procedures where the sequence matters. You can also set a checklist to reset when opened, making it ready for routines you repeat often. Use it for daily startup tasks, weekly reviews, recurring household jobs, or any checklist you want to begin fresh each time. When you need to start over manually, you can clear checks from an individual checklist or clear a full folder of related checklists. DoChecklist is designed for iPhone and iPad with a native Apple-style interface that stays out of the way. Your lists are easy to edit, easy to check off, and easy to organize. The free version includes one checklist. Upgrade to DoChecklist Pro with a single lifetime purchase to create more checklists and use iCloud sync across your iPhone and iPad. Pro also supports continued independent development of the app. Features: - Create focused checklists for repeatable routines - Organize checklists into folders and subfolders - Add sections inside checklists - Choose ordered or free-form checking - Reset selected checklists when opened - Clear completed checks when you want a fresh start - Reorder folders, checklists, sections, and items - See completed checklists at a glance - Use DoChecklist on iPhone and iPad - Upgrade once for lifetime Pro access to all features - Sync with iCloud - Share checklists with other DoChecklist users. - No subscription - No ads - Privacy focused, no tracking DoChecklist is useful for: - Travel packing and pre-trip preparation - Weekly cleaning and home routines - Project launch steps - Study and exam preparation - Meeting and presentation prep - Equipment setup and teardown - Hobby workflows - Maintenance reminders - Personal routines - Recurring work processes - Shopping and errands - Moving checklists - Event planning - QA and review steps - Aviation flight checklists DoChecklist helps turn repeated tasks into clear, reusable workflows.

Screenshots

Oovium4 screens
DoChecklist4 screens

Verdict

The call

The clearest difference is in-app purchases: Oovium at none against DoChecklist's 1. Oovium also leads on update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement 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. DoChecklist sells 1 one-off in-app purchase. Oovium asks for nothing beyond the download.

UpkeepUpdate frequency

Oovium ships an update monthly, DoChecklist every 3 months. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Oovium versus DoChecklist: the parameters behind the verdict, then further details
ParameterOoviumDoChecklist
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews64.7% of reviews—
Number of ratings5 — better—
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size11 MB3 MB
Age rating4+4+
DeveloperAepryus SoftwareAntti Heinonen

Bugs and requests

Oovium

Reported bugs

134 issues
  • Subscription not working
  • Crashes on launch on iPad
  • Links to Dropbox no longer work
  • Update killed everything, crashes on first screen
  • Crashes regularly
Show 129 more
  • App crashes at launch
  • Crashes and lost data before saving
  • Crashes a few times on first use
  • Struggled to get rid of help demo
  • Crashes regularly and feels like a work in progress
  • On-screen hints don't rotate with screen orientation
  • Crashes very frequently
  • Cannot get an aether saved
  • App exits and data is gone
  • Redone calculations multiple times
  • Crashes at launch
  • Launch, crash, launch, crash
  • Splash screen up for a fraction of a second
  • Crashed 5 times in 15 minutes
  • Crash-prone
  • Keeps crashing
  • Is it this update?
  • Forum has no entries since September
  • App still supported/under development?
  • Testing of releases could be better
  • Crashes on start
  • Unusable
  • Landscape mode reverts to portrait
  • Attempts to remove bubble cause a crash
  • Problem with online forum
  • Forum in its infancy
  • Background fades slowly
  • No audio feedback option
  • No statistical functions
  • Too difficult to move and link bubbles
  • Help documentation nonexistent
  • No array of numbers from spreadsheet or data table
  • No zoom
  • No scrollbars
  • Black background poor choice
  • No labels for boxes
  • No separation in box between references and numbers
  • Can't move a box once it's down
  • No visual sign of connections like lines
  • Needs more functions
  • Hard to use and get lost
  • Trippy version of Apple calc
  • Odd to use
  • Subscription is paid but app not usable
  • Mac app not clear, tutorial for iOS only
  • Subscription not automatically renewed
  • App crashes on launch
  • App hasn't been updated in a long time
  • App hasn't kept up with iOS changes
  • Dropbox links no longer work
  • Crashes on launch on iPad
  • Update killed everything
  • Crashes on first screen
  • Crashes regularly
  • Feels like a work in progress
  • Implementation not intuitive enough
  • On-screen instructions are clunky
  • On-screen hints don't rotate
  • Odd, unwieldy interface
  • Tutorial limited to making bubbles
  • Lacks comprehensive help files
  • Video-based information useless for some
  • Interface prevents features from being used
  • Crashes regularly
  • Tedium
  • Custom UI elements instead of standard iOS
  • Not ready for prime-time
  • No statistical functions
  • Too difficult to move and link bubbles
  • Help documentation basically nonexistent
  • No ability to use an array of numbers from a spreadsheet or data table
  • Can't save a calculation web and reuse it
  • Can't zoom in
  • Interface isn't intuitive
  • Can be quite frustrating to begin with
  • Crashes very frequently
  • Can't get an aether saved
  • Once the app exits, it's gone
  • Redone the same calculations 3 times
  • Crashes at launch
  • Launch, crash, launch, crash
  • Splash screen up for a fraction of a second
  • Crashed 5 times in the last 15 minutes
  • GUI needs to be slicker and more polished
  • Crashed a few times on first use
  • Struggled to get rid of the help demo
  • Certain aspects are portrait orientation only
  • In app documentation is terribly lacking
  • Crash-prone
  • Documentation could be much better
  • Managed to crash it 5 times in the last 15 minutes
  • Lack of stability and good documentation
  • Beta at best right now
  • Keeps crashing
  • Is it this update?
  • Could do with a comprehensive set of instructions
  • Forum has no entries since September
  • Is this app still supported/under development?
  • Testing of releases could be better
  • Crashes on start
  • Unusable
  • Landscape mode reverts to portrait
  • Attempts to remove the offending bubble also cause a crash
  • In-app help is very sketchy
  • Price seems high for what seems more like an alpha version than a stable release
  • Limited in-app help
  • Problems with online forum
  • Needs Undo / Redo
  • Needs centering
  • Needs cut/paste formula
  • Needs colors
  • Needs search and save
  • Background fades slowly
  • No audio feedback option
  • No statistical functions
  • Too difficult to move and link bubbles
  • Help documentation is basically nonexistent
  • No ability to use an array of numbers from a spreadsheet or data table
  • No zoom
  • No scrollbars
  • Black is a poor choice of background color
  • No labels for boxes
  • No separation in a box between references from other boxes and numbers entered directly
  • Can't move a box once it's down
  • No visual sign of connections like lines
  • Needs more functions
  • Hard enough to use and once it is set up you get lost quickly
  • Trippy version of the apple calc
  • Kinda odd to use

Requested features

75 requests
  • Better terminology
  • Vastly better documentation
  • Pay-once option
  • Lower purchase price ($3.99 or less)
  • Graphing and graphics capabilities
Show 70 more
  • Loop structure (other than recursion)
  • Overlay for logic and decision making flow chart shapes
  • Link logic operators to number flow
  • Undo feature
  • Random number generator function
  • Loop structure
  • Better handling of labeling and grouped items
  • Standard iOS interface elements
  • Undo/Redo functionality
  • Centering
  • Cut/paste formula
  • Colors
  • Search and save functionality
  • Fade background faster
  • Audio feedback option (beep-boop sounds)
  • Statistical functions
  • Ability to use array of numbers from spreadsheet or data table
  • Scrollbars for canvas navigation
  • Labels for boxes
  • Separation in box between references and numbers
  • Ability to move a box after placement
  • Visual sign of connections (lines)
  • More functions
  • Zoom functionality
  • Scrollbars
  • Labels for boxes
  • Separation in box between references and numbers
  • Ability to move a box once it's down
  • Visual sign of connections like lines
  • More functions
  • Save calculations and functions
  • Improve UI slickness and polish
  • Remove help demo after first use
  • Add cues and clues for using the interface
  • Use standard iOS interface
  • Add simple titles or tips for objects
  • Guidance on aether list usage
  • Create own objects and make calculations based on them
  • Improve stability and error handling/recovery
  • Improve documentation
  • Add strings, constants, and units
  • Fix landscape mode orientation issue
  • Add Undo/Redo
  • Add centering
  • Add cut/paste formula
  • Add colors
  • Add search and save
  • Fade background faster
  • Audio feedback option
  • Statistical functions
  • Ability to use array of numbers from spreadsheet or data table
  • Zoom functionality
  • Scrollbars
  • Labels for boxes
  • Separation in box between references and numbers
  • Ability to move a box once it's down
  • Visual sign of connections like lines
  • More functions
  • Save calculations and functions
  • Improve UI slickness and polish
  • Remove help demo after first use
  • Add cues and clues for using the interface
  • Use standard iOS interface
  • Add simple titles or tips for objects
  • Guidance on aether list usage
  • Create own objects and make calculations based on them
  • Improve stability and error handling/recovery
  • Improve documentation
  • Add strings, constants, and units
  • Fix landscape mode orientation issue

DoChecklist

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Oovium

No in-app purchases

1 purchases

DoChecklist

One-time1
  • DoChecklist Pro$4.99

Questions

Is Oovium free?
Oovium is free to download, with no in-app purchases.
Is DoChecklist free?
DoChecklist is free to download, with in-app purchases available.
Do Oovium or DoChecklist have ads?
Neither Oovium nor DoChecklist shows ads.
Which is updated more often, Oovium or DoChecklist?
Oovium ships an update monthly, and DoChecklist every 3 months. Most recently, Oovium was updated on October 31, 2026 and DoChecklist on October 25, 2026.

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