Most auto dialers fail on the phone, not in the app: the battery saver quietly stops them. This setup guide for a free auto dialer app for Android fixes that on RMDialer in minutes, so reminders ring on time.
Calling on RMDialer is free with no sign-in, and automatic list dialling can be tried for three days. This page is the phone side: permissions, the default phone app, battery and autostart, brand by brand.
- Android 8 and newer
- Default phone app
- Battery unrestricted
- Reminders on time
- Fixes by symptom
Basic dialer free, no login · Auto dialer: 3-day trial, no card
Your own SIM, own Android phone, no virtual number · Mobile app + Web CRM in one plan · No card for the trial
How do you set up a free auto dialer app on Android?
Setting up a free auto dialer app on Android is mostly about the phone, not the app. Install it from Google Play on a handset running Android 8 or newer, accept the prompt to make it the default phone app, and allow phone, call log and contacts access so it can place calls and tell connected calls from missed ones. Allow notifications and display over other apps so the session bar and reminders show up. Then set battery to unrestricted and switch on autostart, because Samsung, Redmi, Vivo and Oppo phones otherwise pause the app and reminders arrive late. On Samsung that means adding it to Never sleeping apps. On RMDialer, the plain calling screen needs no account at all, while auto dialling a list, with reminders attached, unlocks during a three-day trial that asks for no card and later costs ₹159 a user each month when billed yearly.
- Android 8 or newer, from Google Play
- Make it the default phone app
- Battery unrestricted, autostart on
- Basic dialer free; auto dialer in the 3-day trial
What does a free auto dialer app for Android need from your phone?
Six things the handset has to allow. Miss one and the app looks broken when it is only blocked.
Android 8 or newer
RMDialer runs on Android 8.0 and every later version, which covers the budget handsets most calling teams are given.
The default phone app role
Android asks once whether to set RMDialer as the default phone app. Say yes, or incoming calls keep opening the old dialer without the lead's details.
Phone, call log and contacts
Phone to place calls, call log to record what happened, contacts to show names. Refuse call log and the app cannot tell a connected call from a missed one.
Notifications and alarms
The running-session bar and follow-up reminders arrive as notifications with exact alarms. Blocked notifications mean a reminder you never see.
Display over other apps
Lets a due reminder or the after-call sheet appear on top of whatever is open. Without it, those arrive only as a notification.
Battery set to unrestricted
With battery optimization on, Android may pause the app and reminders arrive late or not at all. Set it to unrestricted for the dialer.
What businesses say about RMDialer
Real businesses, real numbers: how owners and sales teams across India and 12+ countries use RMDialer every day.
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“Earlier I was dialling 80 to 100 portal leads a day by hand from Excel. With RMDialer auto dialer app I import the sheet, press start and it calls one by one from my own Jio SIM. Between calls I mark Interested or Site visit in two taps and the follow-up rings me on time. Closed 3 flats last month from leads I would have forgotten.”
Rakesh Choudhary Real estate consultant · Property advisory Jaipur -
“Hindi mein app chalta hai, yeh sabse badi baat. Season shuru hone se pehle 400 kisaan ki list auto dial ho jaati hai, aur jo bole "baad mein call karna" uska reminder set. Excel se auto call kaise kare, yeh Google pe dhoondh ke yahan aaya tha. Ab do saal se use kar raha hoon.”
Mahesh Bishnoi Proprietor · Agri-input dealership Bikaner -
“GST and ITR deadlines mean 200 client calls in a fortnight. The auto dialer runs the list, the remark goes on the client's number, and the ones who said "documents by Friday" ring the assistant on Friday. A follow up reminder app that lives inside the phone dialer is the only kind my staff will keep using.”
Sanjay Shah Partner · Chartered accountancy firm Ahmedabad -
“Collections calling is volume work. The auto dialer clears 250 numbers per executive per day from their own SIM, promise-to-pay dates become reminders, and the daily call report shows connected versus not reachable per person. Talk time per employee ended the "phone was busy all day" excuse.”
Ramesh Pandian Recovery manager · NBFC collections Madurai -
“Most CRM tools here are built for a desk. Our brokers sell from their phones, so a telecalling CRM inside the dialer made sense. Leads from Facebook ads land in the app, the auto dialer calls them, and the tripping schedule rings each broker. Tagalog interface, own Globe SIM, no VoIP number for clients to distrust.”
Maria Santos Operations lead · Real estate brokerage Manila, Philippines -
“Renewal reminder is the reason I pay for it. Every policy due date rings me 30 days, 7 days and 1 day before, with the client's number right there. Earlier 3 to 4 renewals a year quietly went to other agents. Small app, big difference for a single agent like me.”
Sunita Verma LIC advisor · Insurance agency Indore
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How do you stop Samsung, Redmi, Vivo and Oppo phones closing the auto dialer?
Each brand adds its own battery manager on top of Android. Menu names change between software versions, so search the settings for the words below if a path looks different.
| Phone brand | Where to look | What to switch |
|---|---|---|
| Samsung | Battery settings, then Background usage limits, then Never sleeping apps | Add RMDialer to Never sleeping apps |
| Redmi, Xiaomi, Poco | The Autostart list, usually under Security or Apps | Switch Autostart on for RMDialer, and set battery to no restrictions |
| Vivo, iQOO | Background app management or Auto-launch | Allow RMDialer to run in the background and launch automatically |
| Oppo, Realme | Auto-launch or Background app management in the battery or app settings | Allow auto-launch and background activity for RMDialer |
| OnePlus, Motorola, other Android | Settings, Apps, RMDialer, Battery | Choose Unrestricted or Don't optimize |
RMDialer's own settings show whether battery optimization, autostart and display over other apps are still off.
What is free in RMDialer on Android, and what is the trial?
Two different things, both without a card.
Free, with no login
Calling itself. Once RMDialer is the phone's dialer, every ordinary incoming and outgoing call runs through it free, and no account has to be created first.
Free for 3 days, then paid
Automatic list dialling plus everything around it: the after-call sheet, reminders that ring, WhatsApp and team reports. When the three days end, keep it for ₹159 a user each month on annual billing or ₹249 on quarterly billing, tax extra.
Why is my auto dialer app not working on Android?
Six symptoms, what usually causes each one, and the fix. Nearly all of them are a setting on the phone.
| What you see | Likely cause | Fix |
|---|---|---|
| Reminders arrive late or never ring | Battery optimization is on | Set battery to Unrestricted; on Samsung, add the app to Never sleeping apps |
| The app stops working after an hour in the background | The phone's Autostart or background manager closed it | Switch Autostart on in the brand's own list |
| Incoming calls show the old dialer | Another app is still the default phone app | Accept the default phone app prompt, or pick it under Default apps in Android settings |
| A reminder shows only as a notification | Display over other apps is off | Allow display over other apps for RMDialer |
| Calls go out from the personal SIM | The SIM choice was left on ask or the wrong slot | Pick the business SIM in the dialer settings |
| Every call looks missed in the history | Call log permission was refused | Grant call log access under Apps, RMDialer, Permissions |
How does an insurance agent in Madurai get an auto dialer working on a Redmi phone?
An illustration with round numbers, showing the one setting that decides whether reminders ring.
Picture an insurance agent in Madurai with 180 policyholders whose premium falls due over the next two months. She installs RMDialer on her Redmi phone from Google Play, accepts the prompt to make it the default phone app, and allows phone, call log and contacts access. The basic dialer works straight away, with no login.
She signs in to start the 3-day trial, imports the premium list and runs her first auto dial session in the evening, when policyholders are home. Eleven people ask to be called back on particular days, and she sets a reminder for each.
The next morning, two of those reminders have not rung. The app's settings show battery as "Optimized", and the phone's Autostart list has RMDialer switched off. She sets battery to no restrictions, switches Autostart on, and allows display over other apps.
From then on each reminder pops up over whatever she has open, with the policyholder's name and the premium amount from her remark. Nothing about the app changed; a display permission and two battery switches did.
Free auto dialer for Android, free Android auto dialer app: the same install
People on a budget phone usually search for a free auto dialer for Android, someone browsing the Play Store types "free Android auto dialer app", and callers who think of it as calling rather than dialling ask for a free auto calling app for Android. Word order moves around too. Whichever phrase brought you here, the setup on the phone is the same, and it is the part most guides skip.
You will also see it called free auto dialer for android, free android auto dialer app, auto dialer app for android free and free auto calling app for android. They describe the same thing, so whichever phrase brought you here, this is the page for it.
How do you set up RMDialer's auto dialer on an Android phone?
- 1
Install and accept the phone app prompt
Install RMDialer from Google Play and allow it to be the default phone app, then grant phone, call log and contacts.
- 2
Fix battery and autostart once
Set battery to unrestricted and switch on autostart or Never sleeping apps, so reminders ring on time.
- 3
Start the full trial and auto dial
Sign in to open the 3-day trial, pick a list and start a session. The next number waits until the outcome is saved.
Free auto dialer app for Android: setup questions
Can I get an auto dialer app for Android free?
Partly, and the line is worth knowing. Placing and taking ordinary calls in RMDialer costs nothing and needs no sign-in. Dialling a whole list automatically, together with reminders and WhatsApp, belongs to the full app, which you can use for three days before paying ₹159 a user each month on annual billing.
Which Android version does RMDialer need?
Android 8.0 or newer. That includes most budget phones handed out to calling teams in the last several years.
Why does an auto dialer app need call log and contacts permission?
Call log tells the app whether each call connected, how long it lasted and which number it was, which is how the list moves on. Contacts lets it show a name instead of a bare number. RMDialer uses them to keep the lead record, and each permission can be reviewed later under Apps in Android settings.
Do I have to make the auto dialer my default phone app?
For RMDialer, yes. Android only lets the default phone app handle incoming calls fully, and that is what puts the lead's name and last remark on screen when a customer rings back. You can switch back to the old dialer in Android settings at any time.
How do I stop Android closing the auto dialer in the background?
Set the app's battery setting to unrestricted, and on phones with their own manager, switch on autostart or background activity for it. On Samsung, add it to Never sleeping apps. RMDialer shows which of these is still off in its settings.
How do I turn on autostart for an auto dialer on a Redmi phone?
Open the Autostart list, usually found in the Security app or under Apps, find RMDialer and switch it on. Then set its battery saver to no restrictions. Menu names differ between MIUI and HyperOS versions, so search the settings for "Autostart" if it is not where you expect.
Where is Never sleeping apps on a Samsung phone?
In battery settings, under Background usage limits, then Never sleeping apps. Add RMDialer there so Samsung does not put it to sleep and delay reminders or the running session.
Why did my follow-up reminder not ring on time?
Almost always because battery optimization paused the app. RMDialer marks this in its settings as "Optimized: reminders may be delayed or missed"; tap it and change to unrestricted, and also allow display over other apps so the reminder pops up rather than hiding in notifications.
Can the auto dialer choose which SIM to call from on a dual-SIM phone?
Yes. RMDialer's dialer settings let each caller pick the SIM that dials, alongside the gap between calls and the speaker. Choose the business SIM once and every session uses it.
Does the auto dialer app work without mobile data?
The calls do, because they are ordinary SIM calls. Outcomes and remarks are saved on the phone and sync to the account when data or Wi-Fi returns, so a weak signal slows the syncing but not the dialling.
Is it safe to download a free auto dialer APK from a website?
Not worth it. An auto dialer asks for phone, call log and contacts access, and a file from an unknown site can do anything with them. Install RMDialer or any other dialer from Google Play, where the developer and permissions are listed.
Will an auto dialer app drain my phone battery?
Calls use battery the way any phone call does. Allowing the app to run in the background is what keeps reminders and the session bar reliable; it does not make the app dial on its own. Keep a charger on the desk for long calling days, as with any phone used all day.
Can I go back to my old phone dialer after trying RMDialer?
Yes. Open Android settings, then Default apps, then Phone app, and choose the previous dialer. Calls continue as before, and nothing is locked.
Does RMDialer work on cheap Android phones?
Yes, on budget handsets running Android 8.0 or newer. Brands that sell budget phones often have aggressive battery managers, so the autostart and battery steps on this page matter most on exactly those phones.
What happens after the free trial of the auto dialer ends?
Ordinary calling keeps working at no charge, with no account needed. To keep auto dialling, reminders, WhatsApp and team reports, choose a plan: ₹159 a user monthly when paid for a year, or ₹249 a user monthly for three months, with tax added.
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