C2 Simon Task vs Timetell Online
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
C2 Simon Task
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The iOS app "C2 Simon Task" is intended for those who are interested in psychology, those who are learning psychology, and those who are researching it. * The effect of the Simon task appears as the difference in the time to recognize the direction indicated by the color in the following two cases, for example. ใป When a figure of the color indicating the left is displayed on the left side (compatible) ใป When a figure of the color indicating the right is displayed on the left side (incompatible) The purpose of this app is to be able to see the effect of the Simon task numerically. The iOS app "C2 Simon Task" records the response time of a simon task (task conflict) in milliseconds. Response time is the time from when the task is displayed to when the answer button is touched (touchdown). The recorded data can be output to a CSV file and read into a spreadsheet application such as Excel. You can change the trial interval, the left and right colors, the shape of the shape, the size of the shape, the brightness of the background, and so on. [details] https://app.brain-workout.org/simontask-e/
Timetell Online
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In order to use this App for time registration and planning your organization must have access to a Timetell Online environment Ask the Timetell administrator in your organization about the possibilities. Among other things, the App offers the following functionality: * Book hours on activities, projects and customers with hours and times * Specify if hours are billable * Submit expenditures for costs and travel distances * Clock in and out * Submit leave requests * View current leave balance * View and edit appointments in your personal TimeTell calendar * View and edit appointments in your colleagues' TimeTell calendar * Convert a Timetell calendar appointment to an hour booking * View customer contact information from your TimeTell calendar * Reception list and exportable calamity report All options are configured automatically in accordance with your Timetell authorization profile. To set up this app you need the following information: * User name * Password * Name of Timetell environment to connect to Please contact your organization's Timetell administator for this information. * Available functionality depends on the TimeTell setup you are connected to * Continuous use of background GPS can significantly reduce battery life
Screenshots
Verdict
The clearest difference is price: Timetell Online at Free against C2 Simon Task's $3.99. Timetell Online also leads on update cadence (every 3 weeks vs every 11 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Timetell Online is free to download; C2 Simon Task costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
C2 Simon Task ships an update every 11 months, Timetell Online every 3 weeks. The most recent releases landed on September 24, 2026 and September 12, 2026 respectively.
| Parameter | C2 Simon Task | Timetell Online |
|---|---|---|
| Price | $3.99 | Free โ better |
| Update frequency | Every 11 months | Every 3 weeks โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.6 โ better | 16.0 |
| Further details โ not scored | ||
| Size | 1 MB | 182 MB |
| Age rating | 4+ | 4+ |
| Developer | Yasuyoshi Ota | TimeTell BV |
In-app purchases
C2 Simon Task
No in-app purchases
Timetell Online
No in-app purchases
Questions
Is C2 Simon Task free?
Is Timetell Online free?
Do C2 Simon Task or Timetell Online have ads?
Which is updated more often, C2 Simon Task or Timetell Online?
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