How to set up Grabber on your Android phone — Amazon Flex auto-accept walkthrough

This is a step-by-step install and setup guide for Grabber, the Amazon Flex auto-accept app for Android. The first install takes about five minutes, including the part where you grant the one permission Grabber needs to work. After this guide you’ll have the app running, filters configured, and your first five free credits ready.

If you haven’t read the pricing comparison yet, the short version is: every accepted block costs 7p at the £35/500-credit rate, your first 5 are free, and there’s no subscription. Full breakdown in the previous post.

What you need before you start

An Android phone signed into your Amazon Flex driver account.
A few minutes to grant one permission and set your filters.
Nothing else. No card, no email signup, no Google Play account changes.

Step 1 — Download the APK

Grabber is sideloaded, so you grab the APK directly from our GitHub Releases page rather than the Play Store. Tap this on your Android phone:

https://github.com/aynerseda-droid/gtrabber/releases/download/v1/app-prod-release.apk

The first time you tap an APK, Android will ask whether to allow installs from your browser. Allow it, then open the downloaded file from your notifications shade or the Downloads folder, and tap Install.

Want to verify the APK is clean before installing? The download has been scanned by VirusTotal: 0 / 93 detections across every security vendor. The file’s SHA-256 is 19ffddf87626f6eb360aa1afb6ca5cd3e6075e9346e978b1fab363328b91ffb0 — if you want to check that what you downloaded matches what we published, run shasum -a 256 app-prod-release.apk on macOS/Linux or Get-FileHash app-prod-release.apk -Algorithm SHA256 in Windows PowerShell.

Grabber doesn’t auto-update from the Play Store (that’s the trade-off of sideloading). To get a new version, come back to this URL when we publish a release; you’ll see the new tag on GitHub.

Step 2 — Open the app and accept the terms

First launch shows the terms screen. Read it, accept it. Grabber’s terms are short on purpose; the important parts are the disclaimer about not being affiliated with Amazon and the part where you acknowledge that automation in the Flex app is your responsibility, not ours.

Step 3 — Grant the Accessibility permission

This is the only permission Grabber needs. The walkthrough screen explains why:

Why Accessibility specifically? Because it’s the only Android mechanism that lets a third-party app read what another app is showing on screen and tap on its buttons. No Accessibility, no automation. Every block-grabber on Android works the same way at this layer.

What Grabber actually reads: only the offer cards inside the Amazon Flex app (com.amazon.flex.rabbit). It doesn’t read any other app, doesn’t scrape passwords, doesn’t mirror your screen to a server. The only data leaving your phone is anonymised crash reports via Firebase Crashlytics if something goes wrong.

Tap the button that opens Android Settings, find Grabber in the Accessibility services list, and turn it on. Android will show a warning — this is a standard system warning for any app using Accessibility, not specific to Grabber. Confirm and come back. The walkthrough will switch to:

That’s the permission done. You won’t need to revisit Accessibility settings unless Android revokes the permission (which it sometimes does after long periods of disuse).

Step 4 — Pick your language (optional)

Grabber ships with 12 languages: English, Arabic, German, Spanish, French, Italian, Dutch, Polish, Portuguese, Romanian, Russian, and Turkish. The app picks one based on your phone’s system language; switch it from this sheet if you want something different. Translations cover the full UI — settings, filters, walkthrough, error messages.

Step 5 — Set your filters

This is where Grabber’s value lives. Filters are the rules that decide which offers from the Flex app are worth tapping Accept on and which to skip. The pricing post covered Today filters; here’s the Future tab that handles offers for blocks starting tomorrow or later:

The fields you set are the same on both tabs:

Warehouse station codes — only consider blocks at stations you’re willing to drive to.
Minimum hourly rate — reject anything below your floor.
Minimum block length — skip short blocks if you only want 3-hour-plus.
Start-time windows — only accept blocks that start within hours you’re available.

Set Today and Future independently. You almost always want different rules: Today is reactive (any block in the next few hours that pays well), Future is selective (only the slots you actually want for tomorrow morning, say).

If you find a combination that works, save it as a Preset — one tap to switch between, say, “weekday school run” and “weekend long blocks”.

Step 6 — The home screen and the floating overlay

Home screen is where you start and stop the scanner. The big button at the bottom switches between Idle (Grabber is doing nothing) and Scanning (Grabber is watching the Flex app and tapping Accept on matches).

The floating overlay is the small circular button that follows you across all apps. It’s how you start or stop the scanner without coming back to Grabber every time. Drag it to a corner that doesn’t cover anything important in the Flex app. The first time it appears, Android will ask for the “Draw over other apps” permission — that’s standard for any floating button (chat heads, password managers, etc.).

Settings — what to know, what to leave alone

Settings has more knobs than you usually need. The two worth knowing about:

Scan interval — how often Grabber re-checks the Flex offers screen. Default is conservative for battery life; bump it up if you’re trying to catch fast-moving offers and don’t mind battery cost.
Notifications — turn on to get a notification when a block is accepted (handy if Grabber is running in the background and you want to know without checking).

The rest of the defaults are fine for almost everyone.

Help — built into the app

The Help screen has the canonical setup walkthrough, an FAQ, and links to support. If something doesn’t behave the way this guide describes, the Help screen is the first place to check — it’s updated with every release.

Your first five accepted blocks are on us

Open Settings → License and you’ll see 5 credits already in the balance. Those are yours, no card needed. Each accepted block consumes one credit. If Grabber catches you 5 blocks — that’s your trial. After that, top-up packs are £1 / 10 credits, £8 / 100, £35 / 500. The pricing post runs the maths on what that costs per year compared to commission-based bots.

If you finish setup and Grabber catches its first block within an hour, you’ve answered the only question that matters: does this thing work for your schedule. The free credits exist so you can find that out without paying first.

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