ICO/IDO Launchpad Development Guide 2025

Token launches are the primary fundraising mechanism for blockchain projects. Whether you're building an ICO (public sale) or IDO (Initial DEX Offering), a purpose-built launchpad gives your project the professional credibility and smart contract security investors expect.

Part of our Blockchain & Web3 Development Complete Guide.

ICO vs IDO vs IEO

Type	Platform	Price Discovery	Liquidity
ICO	Direct website	Fixed price	Manual listing
IDO	DEX launchpad	AMM price discovery	Instant DEX listing
IEO	Centralized exchange	Fixed price	CEX listing
Private Sale	Bilateral	Negotiated	Vested

Token Sale Smart Contract Architecture

Sale Contract Features

• Whitelist/KYC gate: Only approved addresses can participate
• Tier system: Different allocation limits per tier (Bronze/Silver/Gold)
• Hard cap / Soft cap: Automatic refund if soft cap not met
• Time window: Start/end timestamps enforced on-chain
• Price discovery: Fixed price or FCFS (first-come-first-served)

Vesting Contract

Critical for investor confidence and price stability:

Token Vesting Schedule Example:
- 10% unlocked at TGE (Token Generation Event)
- 6-month cliff (nothing unlocks)
- 24-month linear vesting (remaining 90% distributed monthly)

Solidity implementation:
function claimVested() external {
    uint256 vested = calculateVested(msg.sender);
    require(vested > 0, "Nothing to claim");
    vestingBalance[msg.sender] -= vested;
    token.transfer(msg.sender, vested);
    emit Claimed(msg.sender, vested);
}

DEX Liquidity Lock

Post-launch, liquidity LP tokens must be locked (6–12 months minimum) to prevent rug pulls. Eifasoft uses Unicrypt or PinkLock for verifiable lock contracts.

Launchpad Platform Features

For building a multi-project launchpad (like PadSwap, TrustPad):

• Project submission: Application form + team verification
• Due diligence: Smart contract audit requirement + team KYC
• Staking tiers: Users stake launchpad tokens to earn allocation tiers
• Guaranteed allocation: Tier-based guaranteed participation
• Lottery system: Fair distribution for oversubscribed launches

India Compliance

Token sales targeting Indian investors must consider:

• SEBI: Tokens resembling securities require SEBI compliance
• FEMA: Foreign exchange received from non-residents
• IT Act: Crypto income taxation
• PMLA: AML/KYC obligations

Eifasoft integrates Sumsub or Onfido for compliant KYC verification.

Development Cost

Type	Features	Cost (INR)
Single project ICO	Sale + vesting + KYC	₹2,50,000 – ₹4,50,000
IDO launchpad	Multi-project + staking tiers	₹5,00,000 – ₹9,00,000
Full launchpad platform	All features + mobile	₹10,00,000 – ₹18,00,000

FAQ

Q: Do you handle the token creation as well? Yes — Eifasoft creates ERC-20/BEP-20/TRC-20 tokens as part of the ICO package. Token design, tokenomics review, and contract audit included.

Q: Can I list on PancakeSwap automatically after IDO? Yes — post-IDO auto-liquidity contracts automatically add raised funds + team allocation to PancakeSwap/Uniswap at a specified ratio immediately after the sale closes.

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Launch your token with Eifasoft's battle-tested launchpad infrastructure. Contact us for a free tokenomics review.