SignalClock Lite vs Mental arithmetic quiz
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SignalClock Lite
This utility app displays a digital clock with a time signal function using local notifications. It offers multiple sound sets and font options. The free version has limitations on scheduling time signals to half-hour intervals.
- Local notification time signals
- Multiple sound sets
- iOS 10 font support
- Half-hour signal scheduling (free edition)
- Digital clock display
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Digital clock has time signal function based on Local Notification Center. Itβs free edition of βSignalClockβ. 5 different signal sound sets. All fonts iOS 10 supports are available in clock. 5 tone type are available in all sound file sets. Free edition limitations : - Able to schedule time signals on half hour unit ex. 00:00, 00:30, 01:00 ...
Mental arithmetic quiz
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Results: Statistics and display of results based on different users (local user roles), the total number of practice questions + the number of correct questions + the number of errors + the number that will be completed in the future, as well as the stars you have obtained and the achievements you have achieved; Challenge: quick start; addition operation; subtraction operation; multiplication operation; division operation; endless challenge; Question Bank: (Question Bank Settings) Configure configuration settings for various calculations and customize quizzes that suit you;
Screenshots
Verdict
The clearest difference is update cadence: Mental arithmetic quiz at every 8 days against SignalClock Lite's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SignalClock Lite ships an update every 7 months, Mental arithmetic quiz every 8 days. The most recent releases landed on September 9, 2026 and May 17, 2026 respectively.
| Parameter | SignalClock Lite | Mental arithmetic quiz |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | β |
| Update frequency | Every 7 months | Every 8 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 β better | 12.1 |
| Further details β not scored | ||
| Size | 28 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Masafumi Endoh | LiRen Sun |
In-app purchases
SignalClock Lite
No in-app purchases
Mental arithmetic quiz
No in-app purchases
Questions
Is SignalClock Lite free?
Is Mental arithmetic quiz free?
Do SignalClock Lite or Mental arithmetic quiz have ads?
Which is updated more often, SignalClock Lite or Mental arithmetic quiz?
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