FreeByte icon

FreeByte MSISDN wallet, GB packs and token catalog

1GB APP COMPANY DMCC · Telecom 4.3 ★

FreeByte is the Kazan Kazan mobile rewards app from 1GB APP COMPANY DMCC. Users sign in with a phone number and SMS code, complete tasks and check-ins, spin the wheel, invite friends, and redeem earned rewards for mobile internet packages and shopping vouchers. The app also offers token packs, partner websites and phone-number-based transfers. Its catalog includes Turkcell-specific data packs alongside brand vouchers, reflecting its Turkish Kim GB İster / Kazan Kazan branding. On Google Play, FreeByte holds a 4.32 rating across 224,094 reviews.

GB reward balances and wheel tokens sit in separate records: amount measures the wallet pool, while tokenBalance tracks tokens and pointLimit and dataLimit describe remaining redemption caps. Catalog entries join productId, value and price with the carrier-eligibility flag onlyTurkcell. Telecom operations teams can compare those offer attributes with remaining caps when planning data-pack redemptions.

Redemption results carry purchaseId, transactionId, state, deliverable and code; ledger entries add partner, reason, created, value and type. Together, these records support voucher-partner settlement and rewards-ledger reconciliation. Phone-number destinations distinguish peer transfers through toMsisdn from charity recipients identified by msisdn. openData Studio turns these reward, catalog and transaction records into callable open data for authorized integrations.

Screenshots

  • FreeByte screenshot 1
  • FreeByte screenshot 2
  • FreeByte screenshot 3
  • FreeByte screenshot 4
  • FreeByte screenshot 5

API surface

The endpoints and request/response examples below are reconstructed from the app's interface — illustrative, not a live capture.

  • Send MSISDN login OTP

    POST /v1/subscriber-access/challenges osint

    Sends a sign-in OTP to the subscriber msisdn and returns code plus timerValue, the countdown before a resend is available.

    Auth: None. Supply the subscriber msisdn to request an SMS code.

    • msisdn
    • code
    • timerValue
    POST /v1/subscriber-access/challenges HTTP/1.1
    Accept: application/json
    Content-Type: application/json
    
    {
      "msisdn": "<subscriber-msisdn>"
    }
    {
      "code": "OK",
      "timerValue": 120
    }
  • Check MSISDN account status

    POST /v1/subscriber-access/eligibility osint

    Checks whether a subscriber is an existingUser and whether electronic-communications consent is recorded in etkAccepted before OTP sign-in.

    Auth: None. Supply the subscriber msisdn before OTP sign-in.

    • msisdn
    • etkAccepted
    • existingUser
    POST /v1/subscriber-access/eligibility HTTP/1.1
    Accept: application/json
    Content-Type: application/json
    
    {
      "msisdn": "<subscriber-msisdn>"
    }
    {
      "etkAccepted": true,
      "existingUser": true
    }
  • Exchange OTP for session token

    POST /v1/subscriber-access/sessions osint

    Completes the subscriber OTP sign-in and returns a session token plus code for use with subsequent Bearer-authenticated requests.

    Auth: None. Supply msisdn, otp and osType. The returned token is used as Authorization: Bearer <session-token> on subsequent authenticated calls.

    • msisdn
    • otp
    • osType
    • token
    • code
    POST /v1/subscriber-access/sessions HTTP/1.1
    Accept: application/json
    Content-Type: application/json
    
    {
      "msisdn": "<subscriber-msisdn>",
      "otp": "<sms-code>",
      "osType": "ANDROID"
    }
    {
      "token": "<session-token>",
      "code": "OK"
    }
  • Read GB wallet balance

    GET /v1/rewards-wallet/data-balance openbanking

    Reads amount, the signed-in subscriber's GB wallet pool displayed as the home-screen balance.

    Auth: Authorization: Bearer <session-token>. Accept: application/json.

    • amount
    GET /v1/rewards-wallet/data-balance HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    {
      "amount": 3500
    }
  • Read token balance

    GET /v1/rewards-wallet/token-balance openbanking

    Reads tokenBalance, the paid or earned token count used for the wheel and token catalog.

    Auth: Authorization: Bearer <session-token>. Accept: application/json.

    • tokenBalance
    GET /v1/rewards-wallet/token-balance HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    {
      "tokenBalance": 12
    }
  • Read point and data spend limits

    GET /v1/rewards-wallet/redemption-caps openbanking

    Returns pointLimit and dataLimit, the remaining point and mobile-data redemption caps for the signed-in subscriber.

    Auth: Authorization: Bearer <session-token>. Accept: application/json.

    • pointLimit
    • dataLimit
    GET /v1/rewards-wallet/redemption-caps HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    {
      "pointLimit": 5000,
      "dataLimit": 10240
    }
  • List wallet transaction history

    GET /v1/rewards-wallet/ledger-entries openbanking

    Lists wallet ledger entries with partner, reason, created, value, type and date for credits and debits of GB or points.

    Auth: Authorization: Bearer <session-token>. Accept: application/json.

    • partner
    • reason
    • created
    • value
    • type
    • date
    GET /v1/rewards-wallet/ledger-entries HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    [
      {
        "partner": "FreeByte",
        "reason": "TASK_REWARD",
        "created": "2026-10-21T09:14:03Z",
        "value": "250",
        "type": "CREDIT",
        "date": "2026-10-21"
      }
    ]
  • List market data packs and vouchers

    GET /v1/reward-market/offerings opendata

    Lists market data packs and vouchers with productId, wallet-unit price, onlyTurkcell eligibility and redemption metadata including deliverable, code and type.

    Auth: Authorization: Bearer <session-token>. Accept: application/json.

    • id
    • productId
    • name
    • value
    • price
    • onlyTurkcell
    • promoted
    • pinned
    • filterable
    • internal
    • deliverable
    • code
    • type
    • title
    • header
    • desc
    • buttonText
    • buttonUrl
    • deeplink
    • badge
    • image
    • fake
    GET /v1/reward-market/offerings HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    [
      {
        "id": 101,
        "productId": 201,
        "name": "Example 1 GB pack",
        "value": "1024",
        "price": 1000,
        "onlyTurkcell": true,
        "promoted": true,
        "pinned": false,
        "filterable": true,
        "internal": true,
        "deliverable": null,
        "code": null,
        "type": "DATA",
        "title": "1 GB internet",
        "header": "Turkcell",
        "desc": "Illustrative prepaid data pack",
        "buttonText": "Redeem",
        "buttonUrl": null,
        "deeplink": null,
        "badge": null,
        "image": "<catalog-image>",
        "fake": false
      }
    ]
  • Redeem a catalog product

    POST /v1/reward-market/redemption-orders openbanking

    Spends wallet value on itemId for receiver after pinOtp confirmation, returning purchaseId, transactionId, state, deliverable and code.

    Auth: Authorization: Bearer <session-token>. Accept: application/json. Supply itemId, receiver and pinOtp.

    • itemId
    • receiver
    • pinOtp
    • purchaseId
    • transactionId
    • state
    • deliverable
    • code
    POST /v1/reward-market/redemption-orders HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    Content-Type: application/json
    
    {
      "itemId": 201,
      "receiver": "<subscriber-msisdn>",
      "pinOtp": "<confirmation-code>"
    }
    {
      "purchaseId": "purchase-example-001",
      "transactionId": "transaction-example-001",
      "state": "DELIVERED",
      "deliverable": "<voucher-delivery-reference>",
      "code": "<voucher-code>"
    }
  • Transfer wallet value by MSISDN

    POST /v1/rewards-wallet/peer-sends openbanking

    Transfers amount of wallet GB or points to the subscriber identified by toMsisdn after pinOtp confirmation.

    Auth: Authorization: Bearer <session-token>. Accept: application/json. Supply toMsisdn, amount and pinOtp.

    • toMsisdn
    • amount
    • pinOtp
    POST /v1/rewards-wallet/peer-sends HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    Content-Type: application/json
    
    {
      "toMsisdn": "<recipient-msisdn>",
      "amount": 500,
      "pinOtp": "<confirmation-code>"
    }
    {}
  • List charity MSISDNs

    GET /v1/reward-giving/recipients opendata

    Lists charity donation destinations by msisdn and name so wallet value can be sent to a charity instead of a peer.

    Auth: Authorization: Bearer <session-token>. Accept: application/json.

    • msisdn
    • name
    GET /v1/reward-giving/recipients HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    [
      {
        "msisdn": "<charity-msisdn>",
        "name": "Example charity"
      }
    ]
  • List partner websites

    GET /v1/reward-market/partner-directory opendata

    Lists partner websites with title, url, featured and enabled flags plus image and story creative fields used in the rewards feed.

    Auth: Authorization: Bearer <session-token>. Accept: application/json.

    • id
    • title
    • description
    • details
    • image
    • buttonText
    • url
    • featured
    • internal
    • enabled
    • showTt
    • imageUrl
    • imageHeight
    • imageWidth
    • storyImageUrl
    • storyButtonName
    • storyOrder
    • storyOnly
    GET /v1/reward-market/partner-directory HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    [
      {
        "id": 42,
        "title": "Example partner shop",
        "description": "Earn on partner checkout",
        "details": "Open the partner site from the catalog",
        "image": "<partner-image>",
        "buttonText": "Visit",
        "url": "<partner-url>",
        "featured": true,
        "internal": false,
        "enabled": true,
        "showTt": false,
        "imageUrl": "<partner-image-url>",
        "imageHeight": 600,
        "imageWidth": 1000,
        "storyImageUrl": "<partner-story-image-url>",
        "storyButtonName": "Shop",
        "storyOrder": 1,
        "storyOnly": false
      }
    ]
  • List purchasable token packs

    GET /v1/reward-market/token-bundles opendata

    Lists purchasable tokenProductList bundles with googleProductId, tokenAmount, pointAmount, price and tokenProductType, and identifies the highlighted tokenProductIdWithBadge.

    Auth: Authorization: Bearer <session-token>. Accept: application/json.

    • tokenProductList
    • tokenProductIdWithBadge
    • id
    • googleProductId
    • name
    • tokenAmount
    • imageUrl
    • pointAmount
    • price
    • tokenProductType
    GET /v1/reward-market/token-bundles HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    {
      "tokenProductList": [
        {
          "id": 3,
          "googleProductId": "example_token_pack_50",
          "name": "50 tokens",
          "tokenAmount": 50,
          "imageUrl": "<token-bundle-image-url>",
          "pointAmount": 0,
          "price": 2999,
          "tokenProductType": "IAP"
        }
      ],
      "tokenProductIdWithBadge": 3
    }
  • Create Stripe payment intent for tokens

    POST /v1/token-checkout/payment-drafts openfinance

    Creates a Stripe payment intent for tokenProductId, returning payment state, payer msisdn, amount, currency and the clientSecret, publishableKey, ephemeralKey and customerId needed by checkout.

    Auth: Authorization: Bearer <session-token>. Accept: application/json. Supply tokenProductId.

    • tokenProductId
    • msisdn
    • intentId
    • amount
    • currency
    • status
    • response
    • clientSecret
    • publishableKey
    • ephemeralKey
    • customerId
    POST /v1/token-checkout/payment-drafts HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    Content-Type: application/json
    
    {
      "tokenProductId": 3
    }
    {
      "tokenProductId": 3,
      "msisdn": "<subscriber-msisdn>",
      "intentId": "<payment-intent-id>",
      "amount": 2999,
      "currency": "try",
      "status": "requires_payment_method",
      "response": "ok",
      "clientSecret": "<payment-client-secret>",
      "publishableKey": "<publishable-key>",
      "ephemeralKey": "<ephemeral-key>",
      "customerId": "<payment-customer-id>"
    }
  • Read gamification mission progress

    GET /v1/reward-journey/mission-status opendata

    Reads the signed-in subscriber's mission progress through completedMission, totalMissionCount, missionActive, milestoneCategory and rewardGainedAmount.

    Auth: Authorization: Bearer <session-token>. Accept: application/json.

    • completedMission
    • rewardGainedAmount
    • milestoneCategory
    • missionActive
    • totalMissionCount
    GET /v1/reward-journey/mission-status HTTP/1.1
    Authorization: Bearer <session-token>
    Accept: application/json
    {
      "completedMission": 4,
      "rewardGainedAmount": 750,
      "milestoneCategory": 2,
      "missionActive": true,
      "totalMissionCount": 8
    }

Data categories

  • balances
  • transactions
  • identity
  • catalog
  • payments
  • missions

Where teams use this data

  • Prepaid data-cap reconciliation

    Ops jobs compare LimitResponse.dataLimit and pointLimit with redeemed MarketProductsResponse rows (onlyTurkcell, productId, value) so carrier packs are not oversold against the remaining cap.

  • Rewards ledger ETL

    Finance bots pull HistoryItem partner, reason, created, value and type plus BalanceResponse.amount and TokenBalance.tokenBalance to rebuild the GB/token ledger outside the app.

  • Voucher partner settlement

    Partner ops match BuyResponse.purchaseId, transactionId, state, deliverable and code to PartnerWebsiteItem.url rows after a pinOtp redemption.

  • MSISDN P2P transfer monitoring

    Risk desks watch TransferRequest.toMsisdn, amount and pinOtp alongside charity CharitiesResponse.msisdn destinations to separate peer sends from donations.

Frequently asked questions

How does FreeByte identify a subscriber?

Subscribers sign in with an MSISDN phone number and SMS OTP. The account check reports existingUser and etkAccepted, the communications-consent flag. Successful OTP confirmation returns a session token for Bearer-authenticated requests.

Which wallet balances and catalog fields are available?

The GB wallet pool uses amount, while paid or earned tokens use tokenBalance. The pointLimit and dataLimit fields describe the remaining point and mobile-data redemption caps. Catalog entries carry onlyTurkcell for carrier-specific eligibility alongside productId, value, price and type. The deliverable and code fields describe redemption delivery, allowing data packs and vouchers to be represented in the same catalog.

Which fields support redemption and transfer reconciliation?

Redemptions take itemId, receiver and pinOtp, then return purchaseId, transactionId, state, deliverable and code. Peer transfers use toMsisdn, amount and pinOtp; wallet ledger entries include partner, reason, created, value and type.

Are the displayed API routes live service addresses?

No. The paths and request and response examples are illustrative models of the app's data flows, not production service addresses. Example subscriber numbers, tokens and payment keys are placeholders.

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Topics

  • FreeByte API
  • Kazan Kazan rewards data
  • Kim GB Ister mobile rewards
  • GB wallet tokenBalance
  • Turkcell data pack catalog
  • voucher redemption ledger
  • pointLimit dataLimit

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