Instant reaction
When a matching block shows up, it acts in milliseconds. Your history shows the reaction time of every capture.
The problem
Hunting blocks by hand is a race you lose
Refresh, look, tap… and by the time you get there, the block is gone. The difference is reaction time.
Searching by hand
- Hours glued to the screen, refreshing
- You're late to the well-paid blocks
- You end up taking the leftovers
- You get tired; the competition doesn't wait
With Master Flex IA
With Master Flex IA
- The app watches the screen for you
- Reacts in milliseconds when a block appears
- Only takes blocks that match your filters
- Never gets tired, never gets distracted
Benefits
Built for drivers who want more and better blocks
Precise filters
Duration, pay per hour, station, start time, date and travel time. It only chases what's worth it to you.
Careful by design
It double-checks the details before touching anything. If something looks off, it stops and lets you know.
Less burnout
You start it and you stop it. It keeps its eyes on the screen so you don't have to.
Catch every wave
At peak times lots of blocks drop at once. With good filters you grab the best one without hesitating.
Private
Your filters and history stay on your phone. No ads, no tracking, and we never sell your data.
How it works
Up and running in four steps
- 1
Install and allow
Download the APK and turn on accessibility. We guide you for your phone's brand.
- 2
Set your filters
Tell it which blocks you want: hours, minimum pay, station and schedule.
- 3
Start the engine
Open Amazon Flex and tap start. The app watches the screen for you.
- 4
Automatic capture
When a block that matches your rules appears, it grabs it instantly.
How to use
Your filters are in charge
Set them once and adjust them anytime. The engine only acts when everything matches.
Key filter
Block duration (hours)
Enter the range of hours you're looking for, for example 3 to 5 hours. This is the filter that decides which blocks the app goes after on screen: set the minimum and maximum and everything outside is ignored. Without this range, the app can't know which block is worth it for you.
Minimum pay per hour
Set how much you want to earn per hour. Blocks below it are skipped automatically.
Stations
Choose which stations you accept blocks from and ignore the ones that don't work for you.
Start window
Pick the hours you want to start. No more blocks when you can't make it.
Date
Work only the day you want, or leave it open to any date.
Travel time
Skips blocks that start before you could reach the station.
Fine-tuning
Combine filters: the tighter your hours and pay, the more valuable the blocks it goes after.
Tip to get started: use broad filters at first (for example, 2 to 6 hours and a realistic hourly pay) to see activity, then adjust based on what you see in your area.
Pricing
Try it free. Keep it if it works for you.
One plan, everything included. Pay directly with the method that suits you.
Monthly plan
Free trial
$14.99/ month
No commitment: if you don't renew, it simply stops.
- Full engine, unlimited blocks
- All filters included
- One license per phone · free phone switch
- Updates included
- Direct support on Telegram and WhatsApp
Pay the way you prefer
How activation works
Payment happens outside the app. You pay, send us the receipt with your device code, and we activate you.
Accepted payment methods (tap to copy)
Zelle · Cash App · PayPal · Crypto
- Install and open the app. You'll see your device code, for example
H7RR-6MK9. - Ask for your free trial by messaging us that code.
- To keep going, pay with your preferred method and send the receipt + your code.
- We activate you. Tap “Check activation” and you're in right away.
Download
Download Master Flex IA for Android
Download APK
What's new in this version
The SHA-256 is the original file's fingerprint: use it to check the file hasn't been modified.
Requirements
- Android 7.0 or newer
- About 10 MB of free space
- Accessibility and “display over other apps” permissions
How to install it
Because it doesn't come from the store, Android asks for a couple of confirmations. That's normal and you only do it once.
- Download the file with the button.
- Open it and allow installs from this source.
- Install and open the app.
- Turn on accessibility when the app asks.
- Allow display over other apps (the floating button).
Android says “Restricted settings”? Go to Settings → Apps → Master Flex IA, three-dot menu → Allow restricted settings, then turn accessibility on again.
Guide for your phone
FAQ
Your questions, answered
What exactly does the app do?
It watches the Amazon Flex screen and, when a block that matches the filters you set appears, it grabs it instantly. You open it, start it and stop it; everything happens on your phone.
How does the free trial work?
You install the app, get your device code and message us. We activate a few trial days so you can use it with your own filters. If you like it, you pay and keep going; if not, you don't pay anything.
How do I pay, and how fast do you activate me?
You pay with Zelle, Cash App, PayPal or crypto and send us the receipt along with your code. As soon as we check it we activate your device; tap “Check activation” and you're in, no reinstall needed.
Does it work on more than one phone?
Each license activates one phone. If you switch phones, message us and we'll move your activation to the new one at no cost.
Does it work without internet?
It needs a connection to validate your license from time to time, but it keeps working for a few hours without signal so a network drop doesn't leave you stuck.
How do I get updates?
The app tells you when a new version is out and takes you to download it. It installs on top and you keep your activation.
Is it affiliated with Amazon?
No. Master Flex IA is an independent tool, not affiliated with or endorsed by Amazon. Using automation may not be allowed by the platform's terms: review your agreement and decide whether it's right for you.
Ready to grab more blocks?
Message us with your device code and we'll help you start your trial. Already using it? Tell us what you'd improve: every piece of feedback shapes the next versions.
Privacy
What we store, and what we don't
To activate your license we store
- A random ID created by the app and its public key
- The device code you see on screen
- Brand, model, Android version and app version
- Your activation status and last connection
We never collect
- Contacts, messages or photos
- Your location
- The contents of your phone
- Your filters or history: they never leave your phone