The AI File Converter service help center provides detailed explanations of pricing rules, file size limits, personal data protection standards, and special features of the Telegram ecosystem.

1. Key Pricing Principles and Limits

The service is designed using a transparent Freemium model that allows you to comfortably handle everyday conversion tasks without a mandatory subscription or recurring fee:

  • Basic Free Access: Every user receives 5 free operations daily for any supported formats up to 20 MB in size. The counter resets every day at midnight (00:00 UTC).
  • Paid Mode for Large Files: Files ranging from 20 to 100 MB or conversions exceeding the daily limit are charged per item: the base cost is $0.02 USD per operation plus $0.001 USD for each megabyte over 20 MB.
  • Hardware Limit: The maximum incoming file size is capped at 100 MB to prevent server overload and Celery queue bottlenecks.

2. Payment Security and Account Balance

Account topping up is handled via secure gateways without collecting or storing payment details on the bot's side. Users have access to 4 independent payment channels: native Telegram Stars (XTR), bank cards via Lava.top, the CryptoBot cryptocurrency gateway (USDT, TON, BTC), and international acquiring via Tribute (Visa/Mastercard World).

You can check your current balance, remaining free quotas for today, and transaction history at any time directly in the bot using the /billing command.

3. Secure File Storage Policy (15 Minutes)

We strictly comply with European data protection standards (GDPR) and guarantee complete confidentiality of the processed documents and media files:

  • All operations are performed in isolated Docker containers without permanent storage on the server.
  • User files are stored in a temporary isolated buffer exclusively for the duration of the active working session — no longer than 15 minutes (900 seconds).
  • Once the 15-minute timer expires, the background system daemon permanently deletes both the source and converted files from the disk. Data recovery is impossible.
  • Through the /privacy command, users can export a machine-readable archive of their data in JSON format in one click (Art. 20 GDPR) or completely wipe their account from the database (Art. 17 GDPR).

4. Special Telegram Features and Support

In addition to standard format changing, the bot provides specialized Telegram multimedia tools: creating round video messages (VIDEONOTE), converting audio into native voice messages with a spectrogram (AUDIONOTE), extracting audio tracks from videos into MP3, and optical character recognition from scans and photos (OCR).

If you have questions, the bot offers a round-the-clock free AI Concierge (via the "🆘 AI Help" button), as well as direct contact with technical support via the /support command.

How many files can I convert for free?

Every user receives 5 free conversions daily. The quota counter automatically resets every day at midnight UTC (00:00). The free tier applies to any files in supported formats up to 20 MB in size.

What is the maximum file size supported by the service?

The free mode accepts files up to 20 MB in size. If you have funds in your balance, the limit increases to 100 MB. Files over 100 MB are not accepted by the bot in order to protect server hardware resources.

How much does conversion cost beyond the free limit?

If your daily limit is exhausted or the file size exceeds 20 MB, the conversion is charged from your balance: the base price is $0.02 USD per file plus $0.001 USD for each megabyte over 20 MB (for example, a 50 MB file costs: $0.02 + 30 * $0.001 = $0.05 USD).

How do I top up my balance in the Telegram bot?

You can top up your balance using the /buy command or via the "Personal Account" button. 4 payment methods are supported: Telegram Stars (in the messenger app), bank cards / SBP (Lava.top), cryptocurrencies USDT, TON, BTC (CryptoBot), and international Visa / Mastercard cards (Tribute).

How can I check my balance and remaining quota?

Send the /billing command to the bot or click the "💰 Personal Account" button in the main menu. The bot will show your current balance in USD, the number of remaining free attempts for today, and the total number of completed conversions.

Where are my files stored and who has access to them?

Files are processed in isolated temporary containers. Access to the contents of documents, photos, and videos is completely restricted from service staff and third parties. File contents are never used to train artificial intelligence models.

How long are files stored on the server?

Source and converted files are stored on the server only for the duration of the active working session — no longer than 15 minutes (900 seconds). This ensures you have time to download the result or choose another format without re-uploading. After 15 minutes, files are permanently deleted by an automatic cleanup process.

How do I delete my operation history or export my data?

A special privacy management menu is available in the bot via the /privacy command (GDPR): the "Export my data" button generates a JSON archive (Art. 20 GDPR), "Clear history" wipes the operation log, and "Delete account" permanently deletes your profile and all data from the database (Art. 17 GDPR).

How do I convert a regular video into a round video message ("videonote")?

Send a video (MP4, MOV, AVI) to the chat with the bot and click the "➔ VIDEONOTE" button. The bot will automatically crop the video to the center into a 1:1 square, optimize the frame rate, and send a native round video message ready to be forwarded to chats and channels.

How do I turn an audio file into a voice message with a waveform?

Send an audio recording or music in any format (MP3, WAV, FLAC, M4A) and select the "➔ AUDIONOTE" button. The file will be re-encoded into the OGG Opus format featuring an interactive audio waveform and support for sped-up playback (1.5x / 2x).

How do I recognize printed text from a photo or scan (OCR)?

Send an image (PNG, JPG, WEBP) or scan and select the target format "➔ OCR". The optical recognizer will extract the printed text and send it directly in a message as well as in a separate TXT text file.

How can I get a bonus balance for conversions for free?

The service runs a referral program (/ref command): you receive $0.20 USD credited to your balance for each invited friend who launches the bot for the first time, and the invited friend immediately receives a $0.10 USD welcome bonus upon registration.

How do I activate a gift promo code?

Send the command /promo CODE or simply send the received promo code as a message in the chat with the bot. The balance will be credited instantly.

What should I do if a file returns an error during conversion?

Most often, errors are related to a corrupted file structure, a password set on a PDF document, or a rare exotic codec. Try clicking the resend button or contact support.

How can I consult with the built-in AI assistant?

A free 24/7 AI Concierge operates inside the bot. Click the "🆘 AI Help" button in the menu and ask any question via text or voice — the neural network will reply in your language and help you figure out formats and settings.

How do I contact the project's technical support team?

To contact the support team, you can use: the support Telegram bot @ai_robot_support_bot, email [email protected], and the feedback form on the official website ai-robot.us/contacts/.