Privacy Policy & Subscription Terms
Black GS · Last updated 26 September 2026
Black GS is a practice app for SSC General Studies. This page explains exactly what the app records and why, how the Premium subscription is billed, and how to cancel it or ask for a refund. It is written to be read, not to be skimmed past.
There is no account
Black GS has no sign-up, no password, and no login screen. We never ask for your email address or phone number, and the app does not read your contacts, your location, your camera, your microphone, or the files on your phone.
What the app records
| What | Why |
|---|---|
| A device identifier, stored only as an irreversible SHA‑256 hash | So your practice history survives reinstalling the app or clearing its data. We cannot turn the stored hash back into your device id. |
| Your display name, if you choose to set one | Shown beside your rank on the leaderboard. Leaving it empty is fine — you simply appear as “Aspirant”. You can change or clear it at any time in Settings. |
| Your practice record — tests taken, answers chosen, scores, time spent, ranks and saved questions | To show your results, your accuracy, your rank against other users, and the questions you bookmarked. This is the app's whole purpose. |
| Reports you write about a question | So we can correct mistakes in the question bank. Only what you type in the report box is sent. |
| App preferences — theme and question language | So your choices follow you to a new phone. |
| App version and platform | To tell you when an update is available and to diagnose problems. |
| Subscription records, if you buy Premium | So the app knows your subscription is active. Exactly what is stored is listed under What we store about a purchase. It does not include your card or payment details, which we never receive. |
Premium subscription — what it costs and how it is billed
Black GS is free to use. Premium is an optional paid subscription that removes every advertisement and opens all mock tests, previous-year papers and book chapters.
| Plan | Price | Renews |
|---|---|---|
| Monthly | ₹30 | Every month |
| Yearly | ₹200 | Every 12 months |
Prices are shown in the app and include any taxes Google Play collects. The exact price and currency you are charged is the one Google Play shows you on the purchase screen, which may differ from the figures above if you are outside India or if prices change.
Google Play takes the payment, not us. Every Premium purchase is processed by Google Play Billing under Google's own Play Terms of Service and Privacy Policy. We never see, receive or store your card number, UPI id, bank details or billing address.
Automatic renewal
Premium renews automatically at the end of each period, and Google Play charges the payment method on your Google account, until you cancel. Renewal is normally attempted around 24 hours before the current period ends.
Which device it applies to
A subscription belongs to the Google account that bought it, so it works on any phone signed in to that account — tap Settings → Premium → Restore purchase on the new phone. Your practice history, by contrast, is tied to the device record described above, so moving to a new phone can restore your subscription without restoring your history, or the other way round. Write to us if you need a history moved across.
If a payment fails
Google Play may put the subscription into a grace period or on hold while it retries. Premium keeps working during a grace period and stops while a subscription is on hold; the app tells you which has happened and links you to Google Play to fix the payment method. If the payment is never collected, the subscription expires and the app simply returns to the free version with all your history intact.
Price changes
If a price changes, Google Play notifies you in advance and, where Google requires it, asks you to accept the new price before charging it. You can cancel instead, and you will not be charged the new price.
Cancelling
You can cancel at any time, and you do not need to contact us to do it:
- Open the Google Play Store app, or go to play.google.com/store/account/subscriptions
- Tap Subscriptions → Black GS → Cancel subscription
The same page is one tap away inside the app, under Settings → Premium → Manage subscription.
Cancelling stops future charges only. It does not end the period you have already paid for: Premium keeps working until that period's end date, and then the app returns to the free version. Nothing you have practised, saved or scored is removed when Premium ends.
To avoid being charged for the next period, cancel at least 24 hours before the current period ends.
Refunds
In short: because Google Play collects the money, Google issues the refunds. We cannot refund a payment we never received — but we can and will support a reasonable request, and you are welcome to write to us either way.
Asking Google Play
Refund requests are made through Google:
- Within 48 hours of the charge — open play.google.com/store/account/orderhistory, find the order and choose Request a refund. Google often approves these automatically.
- After 48 hours — use Google's form at support.google.com/googleplay/answer/2479637. Google reviews these case by case, and the decision is Google's to make.
Refunds are issued to the original payment method, and the time it takes to appear depends on your bank or payment provider, not on us.
Asking us
Write to sarkariquizapp@gmail.com
with the order id from your Google Play receipt (it looks like
GPA.0000-0000-0000-00000) and a line about what went wrong. We read
every message. Where a request is reasonable — for example a charge you did
not intend, a renewal you thought you had cancelled, a duplicate purchase, or
Premium that did not actually unlock — we will ask Google to refund it and
tell you what Google decides. We aim to reply within 3 working days.
Where we will usually say yes
- Premium was charged but never activated on your device, and Restore purchase did not fix it.
- You were charged twice for the same period.
- You were charged for a renewal within a few days of asking to cancel.
- A fault in the app made Premium unusable for most of the period you paid for.
Where we will usually say no
- The period is largely used and Premium worked as described. Cancelling is the right step there, and it takes effect at the end of the period.
- The reason is that the question bank does not contain a particular paper or chapter. What Premium includes is listed in the app before you buy, and new content is added over time rather than promised.
- The purchase was made on someone else's Google account without their knowledge — that has to go to Google, who can verify the account.
None of this limits any right you have under the consumer law that applies where you live.
Free trials and promotions
Black GS does not currently offer a free trial. If one is ever added, the length and the price after it ends will be shown on the Google Play purchase screen before you confirm, and cancelling before the trial ends means no charge.
What we store about a purchase
When you buy or restore Premium, the app sends the purchase token Google gave it to our server, and our server asks Google what that purchase actually is. We then store Google's answer:
- the purchase token and Google Play order id;
- which plan it is (product and base plan — monthly or yearly);
- its state (active, in grace period, on hold, paused, cancelled, expired);
- whether it renews automatically;
- its start and expiry dates, and when we last checked with Google;
- whether it was a test purchase.
That record is linked to the same device record described above, and to nothing else. We do not receive or store your name on the payment method, card or account numbers, UPI id, billing address, or the amount charged in your currency. We check with Google on each app launch, which is how a renewal, a cancellation or a refund is noticed without you having to tell us.
Advertising
The free version of Black GS is paid for by advertising. Ads are served by Google AdMob, which collects and uses data according to its own policies — including your device's advertising ID. Google's handling of that data is described at policies.google.com/technologies/partner-sites.
You can reset or delete your advertising ID at any time in Settings → Google → Ads on your Android device. Watching a rewarded video is always optional; the app records only that a reward was earned and for how long your access window runs, never anything about the advert itself.
Premium members are shown no advertisements at all — no banners, no full-screen ads and no rewarded videos — for as long as the subscription is active.
What we do not do
- We do not sell your data, to anyone, for any purpose.
- We do not share your practice record with other companies.
- We do not build advertising profiles ourselves.
- We do not track you across other apps or websites.
- We do not handle, see or store your payment details.
Where it is kept, and for how long
Your data is stored on our hosting provider's servers and is kept while you continue to use the app, so that your history remains available. Requests made by the app travel over HTTPS. Subscription records are kept for as long as we need them to prove what you were entitled to and to meet tax and accounting obligations, and are then deleted.
Deleting your data
Write to sarkariquizapp@gmail.com from any address and ask for your data to be deleted. To find your record we need the account id shown in the app under Settings → Account. We will delete your practice history, saved questions, display name and device record within 30 days and confirm when it is done. Uninstalling the app on its own does not delete anything from the server.
Deleting your data does not cancel a subscription, because the subscription lives on your Google account rather than on our server. Cancel it in Google Play first, or you will keep being charged for an app whose record of you is gone.
Children
Black GS is intended for candidates preparing for government examinations and is not directed at children under 13. We do not knowingly collect data from children under 13. If you believe a child has used the app, write to us and we will remove the record.
Changes
If this policy changes, the date at the top of this page changes with it, and material changes will be announced in the app.
Contact
sq.black.gs, and the blackgs_premium subscription sold
through Google Play.