My iPhone apps

Maintenance updates status

As indicated in my previous post, I am currently in an update maintenance only phase to smoothly prepare for iOS 8.

First application concerned by this phase: SoHO Viewer.

Read more…

My roadmap for next months

This little post is to present you what I intend to work on for the next months.

As I will be quite busy due to personal and good reasons, I won't be able to make big updates for the time being. So I will focus on some small, maintenance related, application updates, intended to facilitate iOS 8 migration when the time will come.

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Updates waiting for review

A small post to talk about the updates currently waiting for review.

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Time for some numbers

Now that SoHO Viewer has been downloaded more than 50,000 times (51,1K according to itunesconnect reportings), it is time to give some numbers about it.

Read more…

All applications iOS 7 compatible

With SpiderChart 2.1 now available, all of my 6 applications currently present on the AppleStore have been updated for iOS 7.


Today the number of 300,000 downloads for my iOS applications (including updates) has been reached.

I want to thanks all my users for this.

SpiderChart 2.1

As promised an updated version of SpiderChart has been submitted to Apple for validation.

As a fact it was first submitted a week ago but I got to resubmit it after I found an issue with cloud synchronization for devices running on iOS 7.

The interface will remain globally the same, but without wood backgrounds images to better integrate with guidelines for the new iOS.

SpiderChart and iOS 7

In a few days iOS 7 will be released to public, it is a known fact that SpiderChart isn't really running well with this new iOS version.

I am currently working on an update that will fix those issues.

Loyd's Puzzle 2.4.0, Rotary Puzzle 1.4.0, Astro Kit 1.1

Summary of last updates:

Astro Kit - 1.1.0

Waiting for review:
Rotary Puzzle 2 - 1.1.0
Rotary Puzzle - 1.4.0
Loyd's Puzzle - 2.4.0

Read more…

Rotary Puzzle 2 - V1.1.0 waiting for review

Rotary Puzzle 2 version 1.1.0 will add Spanish and Portuguese localizations. Memory management is improved.

Read more…

Astro Kit 1.1 waiting for review

Astro Kit version 1.1 will add Spanish and Portuguese localizations.

Read more…

SpiderChart 2.0.1

SpiderChart 2.0.1 is now available on the AppStore, it fixes a bug present in the previous version causing a crash for iPad users.

SpiderChart 2.0 issue

A bug is present in the last update of SpiderChart causing a crash when launched on iPad.

A fixed version is already waiting for Apple's Approval.

I apology for the inconveniences caused by this situation.

SpiderChart 2.0 waiting for review

The longly awaited spiderchart version 2.0 has finally being submitted to Apple, it is currently waiting for review.Read more…

7,000 push notifications users

The last time I wrote in this blog was about two month ago to announce you were more than 6,500 subscribers to SoHO Viewer push notifications.

Well, you are now more than 7,000! I thank you all to continue using my applications Happy

6,500 push notification users

SoHO Viewer is now providing push notification services to more than 6,500 users.Read more…


Today the total number of downloads, including updates, for my iOS applications has exceeded 250,000

SoHO Viewer 2.2.2

SoHO Viewer version 2.2.2 is waiting for review.

It correct bugs that appeared in previous update.

Summary of last works

As I haven't posted for a long time, here is a summary of what has been done since last post.

Update for Rotary Puzzle and Loyd's Puzzle
Bug fixes on Soho Viewer's gatewayRead more…

SoHO Viewer notification push rate improved

Soho Viewer push notifications used to be processed twice an hour.
Since a few hours this process is now executed every three minutes.
Read more…

Rotary Puzzle 1.3

An update for rotary puzzle has been submitted to the app store, no new functionality but full support of iPad Retina and iPhone 5.

Loyd's Puzzle 2.3

An update for loyd's puzzle has been submitted to the app store, no new functionality but full support of iPad Retina and iPhone 5.

SoHO Viewer 2.2

SoHO Viewer has been updated with new indicators:
- pictures waiting for update
- pictures currently updating

Loyd's Puzzle ranked second!

Loyd's Puzzle a.k.a. le jeu du taquin is currently ranked second in the French AppStore under free Games/Kid for iPad !

Capture d’écran 2012-07-06 à 07.12.07

SpiderChart 1.0: waiting for review!

As promised, SpiderChart 1.0 was submitted to apple for validation.
I hope you will see it very soon on your AppStore.

New features :
- database is now synchronized via iCloud
- you can duplicate a spider chart with a long press on the chart list
- you can duplicate a dataset with a long press
- you can choose how to display the grid : no grid, with polygons (like before) or with circles

SpiderChart 1.0

At least the "first real" version of Spiderchart is coming! I plan to submit Spiderchart version 1.0 at the end of this week!

SoHO Viewer: what's really behind the application.

When the SOHO Viewer application refresh its content, the process is a bit more complex than just downloading images from a website. Well, first versions used to do so but since version 2.0 of SoHO Viewer another mechanism is used.
Read more…

SoHO Viewer 2.1 issues

Since version 2.1 SoHO Viewer has notifications push, this new functionality has caused an overload on the gateway which has resulted on severe application freeze on launch. The gateway has since been re-designed to support a greater load.

A new update of SoHO Viewer (2.1.1) is currently waiting for review, this update will help to further more reduce the stress on the gateway and prevent the application from freezing if such an overload should occurs again.

SoHO Viewer 2.0.1

SoHO Viewer is now in version 2.0.1

This version is only mean to fix a possible issue while being connected through a proxy server.

SoHO Viewer 2.0

SoHO Viewer is now in version 2.0.

This version resolves a major fault: SoHO Viewer was always re-downloading all pictures at launch.

I am pleased to announce you this fault is no more. The application now uses a gateway in order to know which pictures has been updated and should be downloaded.

SoHO Viewer update published

I have published a quick update to SoHO Viewer before the big one.

Double tap on a picture to zoom in / zoom out.

SoHO Viewer update in preparation

An update of SoHO Viewer is currently being prepared.

This update will only bring one thing, but I hope you will agree it will a major improvement.

In the current version, all pictures are re-downloaded while refreshing, even if they haven’t been updated on Nasa’s website. In the new version to come, only updated pictures will be re-downloaded.

Loyd's Puzzle 2.0

The awaited update for Loyd's Puzzle has been submitted!

Pasted Graphic

Improved graphical interface:

  • fully compatible with retina display

  • iPhone / iPad universal app

  • new background image

Improved user experience:

  • slide or tap a piece to move it

  • shake to shuffle

Astro Kit

I intend to submit to the AppStore a new iOS application. Update : DONE
Astro Kit is an utility to help setting up a telescope.

It gives those useful informations in one screen: - GPS coordinates - universal time - compass - Polaris local hour angle.

I created this software a few weeks ago in a mere half an hour for a personal usage.

As it could help many star lovers like myself I decided to publish it, even if the graphical user interface is minimalist.

It will also be my first application to be localized in three languages: - English - French - German

PS: Be careful to keep your iPhone away from any magnet or metal when using the compass. Some protections for iPhone include a magnet, the indicated direction becomes wronged.

Loyd's Puzzle 2.0.5

This update improves graphics on iPad
It also fixes some bugs

SohoViewer 1.8 (available on iTunes)

I have just submitted an updated version of SoHO Viewer to the App Store. It is now waiting for review!

MDI images are now replaced by images from the HMI instrument of the Solar Dynamics Observatory.

Pasted Graphic 1


This update is now available as a free download on the iTunes App Store.

SoHO Viewer quoted as one of the "10 free iPhone apps for spectacular stargazing"

The article
By Michael Cooney, Network World November 22, 2010 07:05 AM ET

SohoViewer 1.6 (update)

An updated version of SoHO Viewer has been submitted to the AppStore and is currently waiting for review.

It's add the long awaited description of the instruments.

Next version will include French localization.

Update: This upgraded version has been approved and should been available in a few hours.

Loyd's Puzzle 1.5

Loyd's puzzle 1.5 is currently waiting for review, this minor update has enhanced graphics for the pieces of the puzzle.

It also solves a bug in multitasking environment where the clock wasn't stopped when you quit the game without having solving it.

For the next update: full retina display compatibility, with an improved GUI experience.

SoHO Viewer 1.5 submitted (approved)

I have just submitted an updated version of SoHO Viewer for review.
What is new in this version?
Improved downloading system with better state indicator.Images are now refreshed on screen as soon as the new picture is retrieved. For improving quality for iPhone 4 and iPad users, the images downloaded are now 1024*1024 instead of 512*512. Improved memory management and performance.

SoHO Viewer 1.5 has been approved.

SoHO Viewer and the NASA

As some of you may have already noticed, there are some words about SoHO Viewer on the NASA's website
Check out the SOHO Viewer iPhone Application. Freeware. Download (
Download and Information). Credit: .Jerome Diaz.
I must admit that it's very gratifying to see that they talk about my work, even if only a few words.

Comme certains s'en sont peut être aperçu, il y a une référence à SoHO Viewer sur le site de la NASA.
Traduit de l'anglais : Allez voir l'application iPhone SOHO Viewer iPhone Application. Freeware. Téléchargement (
Download and Information). Crédit: .Jérôme Diaz.
Je dois admettre trouver gratifiant de voir une référence à mon travail, même si c'est uniquement sur quelques lignes.

SoHO Viewer: the sun in pictures This represents my second iPhone application validated by Apple ! More info here

As you may have already noticed, another page made its apparition : "SoHO Viewer".
This represents my second iPhone application validated by Apple !
More info

Loyd's puzzle/Le jeu du taquin: available in your favorite AppStore

After days of wait, the "Your application is Ready for Sale" mail finally arrived.
You can now buy it for the cheap price of 0.99$ (= 0.79&euroWinking. Evolutions are already scheduled.
For more informations, please visit
Loyd's puzzle

The Taquin Game

If all goes well, you will soon be able to use the first game software I ever wrote.
Taquin is a puzzle game, where YOU choose the picture you want to use, and the number of pieces.

Two hints mode will be availables:

  • shortly display the solved puzzle,

  • switch between picture pieces and number ones

Localization: English French
An automatic solver might be added in a next version.