You never buy SMS from Hazira Khata — who actually pays for a message
Most schools and madrasas in Bangladesh used to buy a bulk-SMS service to reach guardians — so much per message, recharge when the balance runs out. So when a teacher sees "বার্তা পাঠান" in Hazira Khata, the first question is usually "do I have to buy messages separately?" The answer needs more than one line, because there are two different roads to the guardian and they cost differently.
Hazira Khata sells no SMS package and cannot send a single SMS by itself. There are two roads to a guardian's phone — the Digital Diary is completely free, while SMS is charged by your own operator from your own SIM. Here is the difference for one class in one month, with the arithmetic.
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First, plainly: Hazira Khata does not sell SMS or messages. There is no place in the app to buy messages, no package, no balance, no recharge. If anyone asks you for money for a "Hazira Khata message package", that is not Hazira Khata.
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There are two roads to a guardian. One — the Digital Diary, which travels over the internet inside the app. Two — your own phone's Messages app, which sends an ordinary SMS from your own SIM. They are separate things, and they cost differently.
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Road 1 — the Digital Diary, and it costs nothing. Open the class, tap "ডিজিটাল ডায়েরি" (Digital Diary), then "বার্তা পাঠান" (Send message). Write what you want, attach a photo or PDF if you like, choose who receives it, then tap "বার্তা পাঠান" at the bottom. Not one poisha is charged — ten messages today or a thousand, the cost is the same: zero.
A diary message never turns into an SMS. It lands inside the guardian's Hazira Khata app. So it has two conditions — the guardian must already be connected to the diary, and their phone needs internet. The number in the green box above the message field (how many guardians will receive this) is the truth. If it says 0, the message reaches nobody.
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Road 2 — an ordinary SMS, charged to your own SIM. When you send a receipt, a result, a certificate or a monthly report, a list appears — WhatsApp, এসএমএস (SMS), imo, অন্য অ্যাপে পাঠান (Send via another app). Tapping the "এসএমএস" row opens your phone's own Messages app with that student's guardian number already filled in.
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Here is the point — you press Send yourself, inside your own Messages app. Hazira Khata only opens that app and fills in the number; it does nothing more. So the charge comes off your own SIM balance at your operator's normal SMS rate (GP, Robi, Banglalink, Teletalk) — exactly as if you had typed the message yourself. Hazira Khata takes nothing from it.
The app cannot send an SMS on your behalf — it is not able to. Hazira Khata does not even ask for the phone's send-SMS permission. So there is no way for your balance to be spent without you knowing. Everything that goes out, goes out in front of you, by your own tap.
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Sending a photo or PDF by SMS makes it an MMS, not a plain text — a different operator rate, and carriers often reject it (PDFs more often than images). For documents and pictures, WhatsApp or imo is easier, and free when you have internet.
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There is no button that SMSes a whole class at once. SMS goes one guardian at a time, each one by your own hand. To reach a whole class in one action, the Digital Diary is the only way — and it is the free one.
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Do the arithmetic once and it settles the question. One class of 40, one notice a day, is 40 × 26 = 1040 SMS a month. At roughly 50 poisha each that is about ৳520 a month, every month, for one class. The same 1040 messages through the Digital Diary cost ৳0. Over a year that gap is thousands of taka.
So the real way to cut cost is not to hunt for SMS — it is to get guardians connected to the diary. Once connected, that guardian receives attendance, results, fees and notices free, forever. How to connect a whole class at once — hazirakhata.xyz/tutorials/connect-all-parents/
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A simple rule for choosing — guardian connected to the diary? Use the diary (free, whole class at once, kept in the app). Not connected, or no smartphone? SMS (your SIM's money, one at a time). Sending a document or picture? WhatsApp or imo (free, needs internet). Keep SMS for the guardians who genuinely have no smartphone, and move everyone else onto the diary.
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Check it yourself. After tapping "এসএমএস", look at the To field in your Messages app — the guardian's number should already be there. If it is, you are set; now you send it. To confirm a diary message went out, open "পূর্বের পাঠানো বার্তা" (Messages sent earlier) on the diary page — everything you sent is kept there.
Common questions
Do I have to buy messages separately to SMS guardians from Hazira Khata?
No. Hazira Khata does not sell SMS and has no way to buy messages inside the app. Digital Diary messages are completely free. The "এসএমএস" button opens your own phone's Messages app — that SMS is billed to your SIM by your mobile operator, not by Hazira Khata.
So does a Digital Diary message arrive as an SMS on the guardian's phone?
No. It goes inside the guardian's Hazira Khata app and raises a notification. A guardian without the app, or one who has not connected to the diary, does not get it — and it does not fall back to SMS. Connecting them first is the real job — hazirakhata.xyz/tutorials/connect-all-parents/
A guardian has a button phone, not a smartphone. How do I reach them?
For them SMS is the only road — tap the number on the student's profile, pick "এসএমএস", and send it from your Messages app. It costs you from your SIM. Keep that list short by connecting everyone else to the diary, and the cost stays small.
After I take attendance, does an SMS go automatically to the absentees?
No. Older versions had something like that; it was removed long ago. Now the box that appears after you save attendance has "বার্তা লিখুন" (Write a message), which builds a Digital Diary message — to everyone, or only the absentees, your choice. It is free, and nothing goes out unless you tap.
Does an SMS I send show up in the app afterwards?
No. An SMS sent from your Messages app stays on your phone; the app has no record of it. Only Digital Diary messages are kept, under "পূর্বের পাঠানো বার্তা" — with the date and the message type. If you want a record, use the diary.
Will the app ever send SMS directly, in a future version?
Not today, and no promise about when. Bulk SMS costs real money per message, so if it is ever added the institution would have to pay for it — it could not be free like the diary. If your institution genuinely needs it, tell the help desk; the decision will follow how many schools ask.
Does sending on WhatsApp cost anything?
No — WhatsApp and imo cost no per-message fee, only the internet you are already using. Unlike SMS there is no charge per message, so for photos, receipts or results WhatsApp is the cheapest road.
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More tutorials
- Using My Child as a parent Keep track of your child with no account at all — vaccine dates, memories, and your own attendance record.
- When a guardian asks to join, on their own A guardian opens the school's website, writes their child's name and sends a request. It lands in the institution tab. All you do is point at which student that is — the guardian confirms the rest themselves.
- Connecting every guardian at once Sending one link at a time takes all day for a class of forty. Send the join request to every guardian in one tap, and connect the parent standing in front of you with a QR code on the spot.
- Connecting a guardian to the diary The teacher shares a link or QR; the guardian taps it and is connected — class messages then reach their phone.
- Sending a message to guardians Notices, homework, fees or exam news — straight to the guardian's phone, free. Photos and PDFs too. Before you send, the app tells you who will actually receive it and who will not.
- Seeing who is connected, and removing someone After sending the requests, the only question that matters is whether it worked. The list at the bottom of the diary answers it — who is marked connected, who to call, and exactly what the red ✕ does.
- Sending the exam routine to guardians You already typed the routine into the app once. One tap sends that same routine to the guardians' phones — no retyping, no photographing a sheet of paper.
- How a parent contacts the teacher Under any diary message there is a button to reach the teacher. There is no reply box in the diary — this explains why, and what to do instead.