This is a list of finished products that are "Bitcoin Cash first"

memo.cash - uncensored site like Twitter, uses Bitcoin Cash for tipping and publishing (it costs about $0.001 to publish an update)

member - uncensored Reddit (similar to memo.cash in other regards)

purse.io - buy things from Amazon with significant discounts using Bitcoin Cash

read.cash - (this site) publish your articles, get upvotes in Bitcoin Cash

tewtew.com - earn BCH each time someone watches your video

honest.cash - similar to read.cash - upvotes with Bitcoin Cash

bitcoincash.network/voting - IFP (infrastructure funding proposal) vote monitoring

bitcartcc.com - create your Bitcoin Cash store (hosted or self-hosted, read more)

tipbitcoin.cash - tipping Bitcoin Cash for Twitch users

bitbirdy.com - Bath & Beauty, Beard & Skincare, BitBirdy Swag, Home Goods, Jewelry & Watches, Kitchen, Novelty, Sports & Outdoor, Tech Gadgets, Travel Gear

satoshiwall.cash - paywalls using Bitcoin Cash (publish content, users need to pay to reveal the contents)

CASHBOX - paywalls using Bitcoin Cash

chaintip on Reddit and on Twitter - give nice people tips on Reddit and Twitter

tips.bitcoin.com - printable expiring Bitcoin Cash tips

Marco Coino, where2.cash - maps of merchants accepting Bitcoin Cash

local.bitcoin.com - non-custodial (can't steal your money) exchange of Bitcoin Cash to local and online currency

CoinText - send and receive Bitcoin Cash using SMS only

fullstack.cash - BCH Blockchain-as-a-service

explore.fullstack.cash - Web-based UI for interacting with the BCH-api REST API

neutrino.cash - the fast, light and privacy-preserving Bitcoin Cash wallet.

Haven app - buy and sell stuff for Bitcoin Cash with no commissions

local.bitcoin.com/goods/Buy - buy and sell stuff for Bitcoin Cash

Cryptophyl - exchange for SLP tokens (tokens on Bitcoin Cash blockchain, including the regulated USDH stablecoin pegged to US Dollar)

TXstreet - visualization of Bitcoin Cash blocks (vs Bitcoin BTC blocks)

Blockchain.poker - Poker using Bitcoin Cash

CashID - identity protocol ("Login using Bitcoin Cash") with identity manager app (beta)

donatebutton.cash - generate a button for your site for users to donate Bitcoin Cash

CashAddress.org - generate Bitcoin Cash wallets

CashAccount.info - reserve a name for yourself (send money to Alex#120938 instead of bitcoincash:qe7je30j2j32j3.....)

Gateway.cash - accept Bitcoin Cash (PayButton)

DoubleSpend.cash - statistics of double-spending attempts (currently out of last 3362 attempts, none were successful if sent more than 1 second later)

Free.Bitcoin.com - faucet (gives a small amount of Bitcoin Cash to start using it)

CashTippr - WordPress plugin to receive Bitcoin Cash tips

WhoTipped.it - displays last tips given on memo.cash

BCHnodes.online, CashNodes.io - data about Bitcoin Cash nodes

Bitcoin Cash register - accept Bitcoin Cash At Retail Locations

CashGames.bitcoin.com - online gambling using Bitcoin Cash

AcceptBitcoin.Cash , GreenPages.cash , Cryptwerk.com/pay-with/bch - big lists of merchants accepting BCH

SatoshiDice.com - online gambling using Bitcoin Cash

BitcoinCashNotes - paper wallets

TheFutureOfBitcoin.cash - website about development of Bitcoin Cash

BitcoinAliens - earn small amounts Bitcoin Cash for playing games

bchpls.io - Bitcoin Cash Point-of-sale system

BCHcoffee.org - rewards are given out to coffee shops for giving Bitcoin Cash payments a chance, anyone who brings them on board gets half the reward

SimpleCash.co - like Stripe for Bitcoin Cash (how to get an invite)

signup.cash - JavaScript for your site to request user payment in Bitcoin Cash or posting to memo.cash

googol.cash - earn Bitcoin Cash translating things or pay with Bitcoin Cash to get something translated (read more)

fountainhead.cash - a lot of Bitcoin Cash tools for developers

tippr/reddit - Bitcoin Cash tipping on Reddit

bchwars.com - vote for stuff with your Bitcoin Cash stash (just send a small amount of 546 sats to vote with your full amount)

SLP tokens - just like Ethereum tokens, but much cheaper ($0.001 per transaction), including our own fully-regulated stablecoin USDH

podium.cash - rating of the most popular SLP tokens

tutorial.cash - a lot of information about BCH and SLP tokens

vanity.cash - personalize your wallet or social media profile with a custom Bitcoin Cash address

Some interesting things to read:

Know of any other apps? Let us know in the comments.

Suspended

c4.cash - (not BCH specific, but worth a mention) purchase Steam, Amazon, Google Play, AppStore gift cards anonymously

lazyfox.io - do things, get paid in Bitcoin Cash (currently in development of version 2, so new registrations are not allowed)

Possibly defunct

NakamotoGame - online gambling using Bitcoin Cash

BitcoinCashForum.online - Bitcoin Cash forum