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

1. Key Pricing Principles and Limits

The service is designed with a transparent Freemium model, allowing you to comfortably handle everyday conversion tasks without a mandatory subscription or recurring fee:

  • Basic Free Access: Each user is given 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 Heavy 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 limited to 100 MB to prevent server overload and Celery queue congestion.

2. Payment Security and Account Balance

Balance top-ups are processed 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), Russian bank cards, MIR and SBP (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 solely for the duration of the active working session — no more than 15 minutes (900 seconds).
  • Upon expiration of the 15-minute timer, the background system daemon permanently deletes both original and converted files from the disk. Data recovery is not possible.
  • Via 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 switching, the bot provides specialised 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 text recognition from scans and photos (OCR).

If you have any questions, the bot features a 24/7 free AI Concierge (the "🆘 AI Help" button), as well as direct contact with technical support via the /support command.

How many files can I convert for free?

Each 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?

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

How much does conversion cost beyond the free limit?

If the 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?

Top-up is available via the /buy command or through the "Personal Account" button. 4 payment methods are supported: Telegram Stars (in the messenger app), Russian bank cards / MIR / SBP (Lava.top), cryptocurrency USDT, TON, BTC (CryptoBot), and international cards Visa / Mastercard (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 strictly restricted from service personnel and third parties. File contents are never used to train artificial intelligence models.

How long are files stored on the server?

Original and converted files are kept on the server only for the duration of the active working session — no more than 15 minutes (900 seconds). This is necessary so you can download the result or choose another format without re-uploading. After 15 minutes, the files are permanently deleted by an automated cleanup process.

How can 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 an archive in JSON (Art. 20 GDPR), "Clear history" wipes the operation log, and "Delete account" permanently removes 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 a 1:1 square from the center, optimise the frame rate, and send a native round video message for forwarding to chats and channels.

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

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

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

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

How can I get a bonus balance for free conversions?

The service has a referral programme (the /ref command): you receive $0.20 USD on 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 file structure damage, 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 within the bot. Click the "🆘 AI Help" button in the menu and ask any question in 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 service?

To contact customer support, 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/.