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Improvement for notification, alert sound, and location update to an iOS app. -- 2

Hi, I have an iOS app for food delivery service that needs improvement in its background service. It currently receives google firebase notifications that trigger an alert sound. The location update is done by polling an API from the backend. It is not working reliably now. I am looking forward to a developer who can improve this.

Feel free to ask any questions and I am looking forward to working with you.

This is a repost from the previous one. I have to use a fixed rate instead of an hourly rate to suit the financial department's requirements.

Skills: Mobile App Development, iPhone, Objective C, Swift, JSON

About the Client:
( 0 reviews ) Sathorn, Thailand

Project ID: #33720786

8 freelancers are bidding on average $274 for this job

(123 Reviews)
7.9
(128 Reviews)
6.6
narendrathakur29

I have 6 year experience in iOS [login to view URL] carefully reading your description, we are writing to you as we are very confident to fulfil your requirements. U can check my past job review . We use the latest ve More

$500 USD in 7 days
(22 Reviews)
4.9
GoyalRidhi

----------------Food Delivery Application------------------------------ For 5 years of mobile app development, I have carried out many successful projects, and my goal is my clients' success. I am sure I can fulfill yo More

$250 USD in 7 days
(13 Reviews)
4.8
(5 Reviews)
4.5
(25 Reviews)
4.5
kdsgroup24

Hi, You already have a food delivery service that needs improvement in its background service. notification, alert sound, and location update to an iOS app. I have 6 years of Experience in Mobile Applications & Websi More

$140 USD in 9 days
(1 Review)
2.0
jaydeepr

Hello, Hope you're well. I have more than 6 years of experience in iOS app development. I would like to work. Dm me so we can discuss further.

$200 USD in 10 days
(1 Review)
0.7