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App Store Apps > Utilities > Serial-Sum Trainer
Serial-Sum Trainer icon

Serial-Sum Trainer

by Ralph Cos · Utilities · $2.99
On the App Store since November 2012 · Data updated 2026-10-15
App Store

Serial-Sum Trainer is made and published by Ralph Cos. AppBrain is an independent app data site and isn't affiliated with Ralph Cos. The app name, icon, screenshots and description belong to Ralph Cos and are shown as published on the App Store.

AppBrain's verdict

Last updated
August 25, 2026
Size
5.44 MB

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Store listing

By Ralph Cos, from the App Store
Serial-Sum Trainer Screenshot 1 of 5
Serial-Sum Trainer Screenshot 2 of 5
Serial-Sum Trainer Screenshot 3 of 5
Serial-Sum Trainer Screenshot 4 of 5
Serial-Sum Trainer Screenshot 5 of 5
Screenshots by Ralph Cos, from the the App Store listing
Description by Ralph Cos Written by the developer, not by AppBrain. Click to read.
This applet helps you train your mental skills to calculate reduced serial sums using the approach of 'outcasting the tens'. It targets close-up magicians familiar to tricks that require such skills.

The overall design of this app is geared towards Alain Nu's 'Serial Thrillers' plot as described in Alain Nu, 'Serial Thrillers', Alain Nu 2009.

The app cycles through 'Serial Thrillers'' logical phases and serves as a virtual spectator who whispers random digits. It allows you to validate your conclusions against the correct response before taking you right into the next cycle.

This is another app by yeahgic.com that aims at increasing your learning curve for mentally intensive tricks. Take it with you whereever you go.

Some Features:
- serial numbers up to 26 digt length
- The design is kept straightforward and simple and fully tailored to help you focus on the real work. Practicing magic you don't want no complicated, overloaded and distracting user interface. Less is more.

yeahgic.com dedicates to card magic apps since 2010. Its other commercial apps address the ACAAN plot, the Twice as Hard plot, Stack Training, and - probably the most courageous app in card magic academy - the Symbolic Method editor.

- Note: the app's design is limited to ascii-font without any pictures. No buttons - it responds to gestures only. The help text is spartanic without formatting. It has the minimum design required to achieve its purpose. Check out the free 'Random Input' app available at the Appstore to experience the look and feel. 'Serial-Sum Trainer' was created with passion and driven by commitment. If this is not what you expected, and considering the solid price, please do not hesitate to make use of Appstore's return option or contact yeahgic.com directly.
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Serial-Sum Trainer forms part of a comprehensive suite of apps that dedicate to technical learning tools for close-up magicians. Serial-Sum Trainer helps you train your mental skills to calculate reduced serial sums using the approach of 'outcasting the tens'. It targets close-up magicians familiar to tricks that require such skills. The app is geared towards Alain Nu's 'Serial Thrillers' plot as described in Alain Nu, 'Serial Thrillers', Alain Nu 2009.

A radical slim design.

Cycle through the logical phases of the challenges at hand. Name it the 'virtual spectator' concept.

Credits:
- credits to Alain Nu for his 'Serial Thrillers' plot as described in Alain Nu, 'Serial Thrillers', Alain Nu 2009.
- I like to thank Alain Nu for the permission to use his ideas for this commercial app.

Some Features:
- serial numbers up to 26 digit length
- display and whisper modes
- feedback driven development
- feels almost like a true deck of cards. Practicing card magic you don't want no complicated, overloaded and distracting user interface. Less is more.
- probably the most complete, and straightforward solution available.

A series of numbers, its serial count. Which digit is missing? Think, calculate, check, and again.
Swipe, swipe, think, verify. Serial swipes.

To experience the look and feel of 'Serial-Sum Trainer' load the free 'Random Input' app available by this developer.
Official page on the App Store

Safety and technology

Found in the app by AppBrain
Price
$2.99
App size
5.44 MB
Content rating
Everyone

Technologies used by Serial-Sum Trainer

Releases

Updates seen on the App Store
Version
2026.2
Launched
November 2012

No changelog data

Alternatives

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About the app and developer

About Serial-Sum Trainer

Serial-Sum Trainer is an utilities app developed by Ralph Cos.

What is the rating of Serial-Sum Trainer?

Serial-Sum Trainer has no ratings yet.

Is Serial-Sum Trainer free?

Serial-Sum Trainer costs $2.99. The app size is 5.44 MB. The latest version available is 2026.2. The last update was on August 25, 2026.

What are the requirements for Serial-Sum Trainer?

The app has a content rating of Everyone. The app has been available on the App Store since November 2012.

Developer information for Ralph Cos

Ralph Cos

Address:

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