How does SorteiGram pick a winner from Instagram comments?

SorteiGram uses a SHA-256 cryptographic hash combined with Fisher-Yates shuffle to randomly select a winner from all eligible comments. Anyone can audit the result with the public hash and seed.

Yes. SorteiGram is free for posts with up to 100 comments. For larger posts, the standard plan is $8.90 (R$24.90 in Brazil) and the premium plan with cinematic reveal is $19.90 (R$49.90 in Brazil).

Which platforms does SorteiGram support?

Instagram, YouTube, TikTok, Twitter/X, Facebook, Kwai, Threads, Telegram and WhatsApp giveaways are all supported.

What languages does SorteiGram support?

12 languages: Portuguese, English, Spanish, French, German, Italian, Turkish, Arabic, Hindi, Indonesian, Japanese and Korean.

Can the giveaway result be audited?

Yes. Every draw publishes a SHA-256 hash before revealing the winner and a seed after. Anyone can re-run the algorithm to verify the result was not manipulated.

Do I need to create an account?

No. SorteiGram works without registration.

How does SorteiGram detect fake accounts and bots?

An AI model analyzes comment patterns, account age, follower ratios, and engagement signals to flag fake accounts and bot entries before the draw.

Can I require participants to mention friends or follow my profile?

Yes. SorteiGram has eligibility filters: require mention of N friends, require specific hashtag, require follow.

Profissional

Contrato de Parceria para Sorteio

Modelo de acordo simples entre marca e influenciador para sorteio patrocinado.

ACORDO DE PARCERIA PARA SORTEIO

Entre:
PARTE A (Patrocinador): [Nome da empresa/CNPJ]
PARTE B (Divulgador): [Nome do influenciador/perfil]

Objeto:
Realizacao de sorteio promocional no Instagram conforme termos abaixo.

Premio:
[Descricao detalhada do premio]
Valor: R$ [valor]
Fornecido por: PARTE A

Obrigacoes da PARTE A (Patrocinador):
- Fornecer o premio em ate [X] dias antes do inicio
- Custear o envio ao ganhador
- Aprovar o conteudo antes da publicacao

Obrigacoes da PARTE B (Divulgador):
- Publicar 1 post no feed + 3 stories
- Manter o post por minimo 90 dias
- Realizar o sorteio via SorteiGram.app
- Divulgar o resultado com verificacao SHA-256
- Enviar metricas (alcance, engajamento) apos o sorteio

Prazo:
Inicio: [DATA]
Sorteio: [DATA]
Entrega do premio: ate [X] dias apos o sorteio

Remuneracao:
PARTE B recebera R$ [valor] via [metodo de pagamento]

Assinaturas:
_________________________
PARTE A

_________________________
PARTE B

Data: ___/___/______

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