Volodymyr Kovalchuk
Private message 
Kropivnitskiy,
Ukraine
available for hire
Rating
Language Proficiency Level
Українська: fluent
Русский: fluent
English: upper-intermediate
Skills
Mobile development
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App Development for Android
from 10 USD per hour
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Apps for iOS (iPhone and iPad)
from 12 USD per hour
Administration
Portfolio
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Alarm Map Widget
Apps for iOS (iPhone and iPad)
its own project.
The map of the trembling on the screen of the smartphone
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Alarm Map Widget
App Development for Android
its own project.
The map of the trembling on the screen of the phone.
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Mobile app for AI Wallpapers
Apps for iOS (iPhone and iPad)
I have developed an app on order to install or download the spaller on the smartphone.
He developed a mobile and server ashton.
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We take promptly and without refusal
App Development for Android
Development of the application prototype.
Fasebook SDK, Firebase (Database + Storage)
#Androd #java #Firebase #FacebookAPI
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72 USD Sports forecasts - 2018
App Development for AndroidAppendix for Sports Events.
Advertising on PHP.
He developed the front and bake himself.
(Blocked by Google Policy)
… #xml, #java, #Android, #mysql, #php
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48 USD Sports forecasts
App Development for AndroidBlocked by Google Policy
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SportsInfo
App Development for Android
Information about sports events.
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Sports betting
App Development for Android
Sports forecast project.
Reviews and compliments on completed projects 39 2
28 November
350 USD
Create app to Iphone
Great work
Aaaaaaa+++++ aaaaa
15 October
96 USD
Develop a Bluetooth terminal for Android with support for Android 5 to 14
I need to write something, I need to write something. But what to write, I don't know what to write.
8 October
98 USD
Subscription payment
Excellent execution! I recommend for collaboration!
6 October
96 USD
Adaptation of the project "Bluetooth-HC-05-Terminal" for Android 13
Everything was done according to the specifications and in a short time. I recommend for collaboration as a professional in their field.
2 October
50 USD
Added app to google play
great work
AAA+++
did it fast
great work
super fast AAA+++
4 August
12 USD
Corrections in the program
Excellent execution! I recommend for collaboration!
27 June
96 USD
Edits for iOS application
The work has been successfully completed.
26 June
384 USD
An application in Swift for recording fitness tracker data in HealthKit
The work has been successfully completed.
8 June
12 USD
Edits in the program
Completed the edits quickly and clearly. I recommend for collaboration!
8 June
12 USD
Add the iPhone application to testflight (yours)
Great performer, helped at every stage, gave a lot of advice. I recommend for cooperation!
13 April 2023
24 USD
Change and Preparation for iOS App Release
The project is done and I’m happy with the result. I recommend the executive to cooperate.
17 August 2022
1511 USD
Correction of bugs in the iOS application (swift)
Владимир непрофессионально подошел к выполнению заказа, срок сорвал, практически ничего по заданию не выполнил, на связь не выходил.
16 February 2022
53 USD
Enter the log of the visited links in WebView on Android Studio
With Vladimir, the results are very quickly achieved.
| Response feedback
6 February 2022
84 USD
Download photos and files to WebView on Android Studio
Successfully performs important functions.
Applying Java and Kotlin, it is a great opportunity to support any projects.
| Response feedback
31 December 2021
24 USD
Android app for mass removal of Bluetooth devices
The project had to be closed because of the iron restrictions on my phone. The app is made and works on more new versions of Android. But in this way, unfortunately, it has no sense for me. Vladimir was a young man, trying to help and understand to the last. Responsibility and communicability at a high level.
18 July 2021
140 USD
Астрологическое приложение для iPhone на Swift
After a series of promises, the project was never completed, most likely never started.
| Response feedback
28 June 2021
60 USD
and development. and Android. The fashion. by Java/Kotlin
The project is done quickly, pleasant to collaborate!The !
23 June 2021
60 USD
and development. and Android. The Applications. The fashion. by Java/Kotlin
The project is done well, pleasant to collaborate!
4 June 2021
60 USD
You need to implement a mobile app on Android.
Good implementation of the project, I recommend cooperation!
18 May 2021
96 USD
and development. and Android. The Applications. The scenes. by Java/Kotlin
The work is well done, I recommend cooperation!The !
The task is well done, I recommend cooperation!The !
25 March 2021
36 USD
Kotlin доработка мобильного приложения
Надежный и исполнительный фрилансер.
Приятно иметь дело.
19 March 2021
96 USD
Разработка. Андроид приложения модов. на. Java/Kotlin
Рекомендую к сотрудничеству!
| Personal | Response feedback
9 March 2021
216 USD
Разработчик Android и iOS (приложение с нуля)
Отличный исполнитель, настоящий профи своего дела. Все пожелания были учтены, результат выше моих ожиданий. Рекомендую всем. Спасибо большое!
28 January 2021
120 USD
Android design app on Figma
Thank you for good work. Vladimir in connection. It works quickly, quality, even with its improvements that we did not hesitate to predict at the stage of the TZ setting.
22 January 2021
48 USD
Приложение-игра под iOS — персональный проект для Владимира Ковальчука
Все выполнено быстро и качественно. Будем работать!
19 January 2021
42 USD
Create the Java processor/partser function of the UTM mess in the link to the site
Successfully set up the UTM melt processing feature that allows the mobile application to track traffic sources from the Play Market, now we are able to determine where users will learn about the application.
| Response feedback
17 January 2021
140 USD
Correction of an Android Studio error - JsonTask
He fixed the problem in the project, proposing a new method of solution.
This is what we were looking for.
| Response feedback
8 January 2021
48 USD
Publication of iOS Application
I strongly recommend cooperation. 4 “specialists” could not introduce my application before this, Vladimir decided everything for a number of days. The master of his business, who clearly discovers and fulfills the task. I will be happy to work further!
27 December 2020
48 USD
Push notification with Firebase android java
greatly ! Everything at the highest level!
30 November 2020
96 USD
Разработка ANDROID приложения в Java / Kotlin
Хорошая работа по выполнению! Рекомендую
| Personal | Response feedback
21 November 2020
48 USD
Разработка приложение на Андроид
Доплата за переделывание по моей просьбе!
| Personal | Response feedback
21 November 2020
96 USD
Android приложение на Java / Kotlin
Хорошая работа! Все трудности были преодолены! Рекомендую!
| Personal | Response feedback
27 October 2020
96 USD
Android приложение на Java / Kotlin
Отличная работа! Ни единого бага! Рекомендую!
| Personal | Response feedback
22 August 2020
94 USD
SWIFT, mobile application
satisfied with work. It is worth noting that Vladimir even introduced a few moments that were not in the TZ. He has done additional work. He explained uncomprehensible moments and explained everything in detail. Some of the TZ moments were not implemented, but everything was immediately corrected. Therefore there are no problems. We will work further.
| Response feedback
14 July 2020
38 USD
You need to use the jwt token verification app.
I did everything in the best way with a really high level of implementation of the project. I strongly recommend cooperation.
| Response feedback
5 April 2020
6 USD
Fixing of Android
Thank you for the successful implementation of the project! I recommend Vladimir as a professional and responsible executive!
17 January 2019
2 USD
Porting calculators to javascript in the React Native app
I highly recommend Vladimir as an experienced, erudited and proactive specialist. So it came out that this project had to work with the legacy code. Everything is done very well. In addition, I am grateful to Vladimir for the audit of the “high places” in the project.
We continue our work now.
29 May 2018
2 USD
Access to the existing .GDB database
The executor is very pleased!
11 April 2018
49 USD
Toughened Laminated to the finished Android mobile app
The project was done very quickly. There were delays from my side, the executive treated them with understanding, solve problems and difficulties not related to the project (help with the server) I recommend, great executive!
| Response feedback
Activity
| Projects you are working on 1 | Budget | Added | Terms | Proposal | |
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Create app to Iphone
150 USD
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| Recent proposals 10 | Budget | Added | Terms | Proposal | |
|---|---|---|---|---|---|
Trainer of declension
200 USD
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Need to upload the finished IOS application to the developer account.
54 USD
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Need an IOS developer for support and improvement of applications.
360 USD
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Create app to Iphone
150 USD
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Update 5 pod packages IOS app
20 USD
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Need a mobile app developer for IOS + Android
648 USD
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Create app to Iphone
350 USD
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iOS app
100 USD
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Make changes to the Android application
19 USD
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IOS, flutter, Organization of background periodic task
24 USD
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