Comparison

Serial vs OTG Cloud by Monster Digital

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

Head to head
About

Serial

Features
Read full description

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. ------------ 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.

About

OTG Cloud by Monster Digital

Wirelessly access and share media from SD cards, USB drives, and hard drives on your Apple devices. Stream content, back up files, and even create a Wi-Fi hotspot. The device also functions as a power bank for other gadgets.

Highlights
  • Wireless media access
  • File sharing
  • Video and music streaming
  • File backup
  • Wi-Fi hotspot creation
  • Power bank functionality
Read full description

OTG Cloud by Monster Digital Quick Description Use the Monster Digital OTG Cloud app with the OTG Cloud device (sold separately) to wirelessly access and share videos, photos and music on SD cards, microSD cards, USB flash drives and hard drives through your iPhone, iPad, iPod touch and Mac. Any device with Wi-Fi and our App or a browser to can access memory connected to OTG Cloud to upload, download and stream. OTG Cloud App and Device Use Scenarios Road trips - access movies via iPad, Mac, iPhone, Tablet, SmartPhone etc. At work - collaborate by sharing files wirelessly, no other network required. On a trip - wirelessly share the day's photos and videos with the group. Backup your files. Wired internet access but no wireless network? - Plug in the Ethernet cable to make a hot-spot. Use the onboard battery as a power bank and charge other devices. OTG Cloud Device (sold separately) Access USB hard drives up to 2TB Read and write to SD and microSD cards up to 64GB An unlimited number of users can connect via Wi-Fi Stream 1080p to 3 devices or 720p to 5 devices Create a wireless access point with internet router functions 2000mAh battery for 5 hours of use and can charge other devices via USB *Not a cellular device and no monthly fees. System Requirements iOS 5 or higher Mac OSX 10.6 or higher Compatibility Compatible with all iOS supported file types. Memory connected to OTG Cloud can store any file but your device must support the file type to read it. For any Assistance or Support Please Contact: support@monsterdigital.com FAQ - http://support.monsterdigital.com/hc/en-us Product Info - http://www.monsterdigital.com/wireless-streaming/otg-cloud Copyright (C) 2014 Monster Digital

Screenshots

Serial4 screens
OTG Cloud by Monster Digital4 screens

Verdict

The call

The clearest difference is price: OTG Cloud by Monster Digital at Free against Serial's $2.99. OTG Cloud by Monster Digital also leads on update cadence (every 5 weeks vs every 7 months) and iOS requirement (6.0 vs 15.6). On ads, in-app purchases and device support 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

OTG Cloud by Monster Digital is free to download; Serial costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Serial ships an update every 7 months, OTG Cloud by Monster Digital every 5 weeks. Both last shipped on November 1, 2026.

Scorecard3 real differences · 7 level
Serial versus OTG Cloud by Monster Digital: the parameters behind the verdict, then further details
ParameterSerialOTG Cloud by Monster Digital
Price$2.99Free — better
Rating—2.4 (60 ratings) — better
Positive reviews—16.0% of reviews
Number of ratings—60 — better
Update frequencyEvery 7 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.66.0 — better
Further details — not scored
Size5 MB17 MB
Age rating4+4+
DeveloperRalph CosSDJ Technologies, Inc

Bugs and requests

Serial

Not enough reviews yet to summarise bugs or requests.

OTG Cloud by Monster Digital

Reported bugs

7 issues
  • App no longer works with iOS 11 and later
  • Cannot transfer files by plugging in phone
  • Music player stops after one song
  • Video plays only in portrait mode
  • App freezes when accessing media server
Show 2 more
  • Cannot read photos from camera SD cards
  • Wi-Fi keeps flashing and stops working

Requested features

9 requests
  • Update the app for current iOS versions
  • Support 'Open In...' functionality for all file types
  • Improve music player functionality (playlists, continuous play)
  • Enable landscape mode for video playback
  • Allow import/export of all file types
Show 4 more
  • Add security features for shared networks (password protection for settings)
  • Improve file transfer speed
  • Support .m4v files
  • Allow changing router settings to connect to Wi-Fi

In-app purchases

None

Serial

No in-app purchases

None

OTG Cloud by Monster Digital

No in-app purchases

Questions

Is Serial free?
Serial costs $2.99, with no in-app purchases.
Is OTG Cloud by Monster Digital free?
OTG Cloud by Monster Digital is free to download, with no in-app purchases.
Do Serial or OTG Cloud by Monster Digital have ads?
Neither Serial nor OTG Cloud by Monster Digital shows ads.
Which is updated more often, Serial or OTG Cloud by Monster Digital?
Serial ships an update every 7 months, and OTG Cloud by Monster Digital every 5 weeks. Most recently, Serial was updated on November 1, 2026 and OTG Cloud by Monster Digital on November 1, 2026.

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