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Jeeng (OpenWeb) platform help — AI-powered multi-channel ad monetization for email publishers with AdFill vacant slot backfill, AdServe direct campaign extension, AdMarket advertiser marketplace (150M+ opt-in subscribers), Google Ad Manager integration, push notification and newsreader monetizati...
Kevel platform help — API-first ad server infrastructure for building custom ad platforms (sponsored listings, native ads, email ads, retail media networks), Decision API, Campaign Management API, Inventory API, UserDB, Audience segmentation, Forecast API. Use when setting up Kevel to serve ads i...
Lettergrowth platform help — free newsletter cross-promotion directory with 1,300+ newsletters searchable by category, subscriber count, and recency for finding swap partners. Use when you can't find newsletters to cross-promote with, looking for newsletters in your niche that are open to swaps, ...
Passendo platform help — European email ad server and SSP for newsletter publishers with programmatic exchange, direct-sold campaigns, first-party data targeting, priority waterfall (guaranteed deals, exchange, house ads), and 15+ demand partners. Use when setting up Passendo to monetize your new...
Listmonk platform help — open-source self-hosted newsletter and mailing list manager with full REST API, multi-SMTP queues, transactional email, Go templates, and PostgreSQL backend. Use when Listmonk emails aren't sending and SMTP test always shows success, campaigns stop midway due to SES throt...
Letterly platform help — AI speech-to-text app that transforms voice recordings into polished emails, social posts, and structured notes with 25+ rewrite options. Use when setting up Letterly for converting voice memos into content (posts, emails, journals, to-do lists), configuring custom rewrit...
Paved platform help — newsletter sponsorship marketplace, programmatic Ad Network, Booker direct-deal management, Radar lead enrichment, ESP monetization integrations. Use when can't find newsletter sponsors, newsletter ad revenue is too low, sponsors aren't renewing, unsure how to price newslett...
PostApex platform help — email newsletter ad network connecting advertisers with 500+ publishers across 50+ categories, native ads, affiliate ads (beta), CPC-based revenue model, publisher analytics dashboard. Use when you want to monetize your newsletter with PostApex ads but aren't getting fill...
Mobile and web push notification strategy — opt-in optimization, rich push, segmentation, timing, frequency capping, deep linking, A/B testing, and analytics. Covers strategy and implementation across Braze, OneSignal, Airship, Firebase/FCM, Customer.io, Klaviyo, Iterable, and MoEngage. Use when ...
Proton Mail platform help — privacy-first encrypted email with end-to-end encryption, zero-access architecture, Hide-my-Email aliases, Proton Mail Bridge for IMAP/SMTP, bundled Calendar/Drive/VPN/Pass (Free 1GB / Mail Plus ~$4/mo / Unlimited ~$10/mo, Swiss-based, 100M+ users). Use when setting up...
Waitlister platform help — pre-launch waitlist platform with hosted landing pages, points-based viral referrals, built-in email broadcasts, REST API, and five HMAC-signed webhook events. Use when choosing Free (100 subscribers) vs Launch $15/mo (unlimited subs, referrals + broadcasts) vs Growth $...
UpViral platform help — viral referral marketing and list-building platform (by Emarky) for viral sweepstakes, giveaway/reward campaigns, pre-launch waiting lists, and milestone referrals, with REST API (`app.upviral.com/api/v1/`, form-encoded `uvapikey` + `uvmethod`), Callback-URL webhooks, IP-b...
Groove.cm platform help — GroovePages, GrooveFunnels, GrooveSell, GrooveMail, GrooveAffiliate, GrooveMember, GrooveVideo, GrooveWebinar, GrooveBlog, GrooveKart, GrooveProof. Use when a Groove module isn't working right, GrooveMail emails aren't sending, GrooveSell checkout is losing buyers, Groov...
Spark Mail platform help — cross-platform AI email client by Readdle with Smart Inbox categorization, Gatekeeper sender screening, AI writing and summarization, email translation, team collaboration (shared drafts, internal comments, delegation), calendar integration, works with Gmail/Outlook/iCl...
SendPulse platform help — email marketing, Automation 360, chatbots (WhatsApp/Instagram/Telegram/Facebook/Viber/TikTok), CRM, online course builder (EDU), website/landing page builder, web push notifications, SMS campaigns, Viber campaigns, SMTP/transactional email, pop-ups, email verifier, API. ...
Clean Email platform help — cross-platform inbox cleanup tool with bulk actions, Auto Clean rules, True Unsubscriber, Smart Folders, and Privacy Monitor ($9.99/mo or $29.99/yr, works with Gmail/Outlook/Yahoo/iCloud/any IMAP). Use when inbox is overloaded with thousands of old emails and need bulk...
Closum platform help — omnichannel marketing automation: email, SMS, WhatsApp, Telegram, Web Push from one dashboard, drag-and-drop editors, no-code automations, AI assistant, landing pages, contact management. Use when Closum campaigns not sending or reaching inboxes, automations not triggering,...
Customer.io platform help — customer engagement and marketing automation for behavior-based multi-channel messaging (email, SMS, push, in-app, WhatsApp). Use when automations aren't triggering on the right behavior, transactional messages are failing or delayed, segments aren't updating as expect...
eM Client platform help — cross-platform desktop email client with calendar, tasks, contacts, PGP/S/MIME encryption, AI writing assistance, message translation, mass mail, and tracking pixel blocking. Works with Gmail, Outlook, Exchange, iCloud, Yahoo, and any IMAP provider on Windows, macOS, And...
Unboxd platform help — AI email secretary that reads every email and extracts action items with deadlines into daily briefings, supports Gmail/Outlook/IMAP ($7.50-41.67/mo). Use when action items keep getting lost in email threads, spending too much time reading and triaging emails, daily briefin...
Iterable platform help — cross-channel customer engagement with Studio journey builder, AI suite (Brand Affinity, STO, Predictive Goals), and Smart Ingest from 23+ data sources. Use when Studio journeys aren't triggering correctly, campaigns or experiments produce unexpected results, email/SMS/pu...
Kit (formerly ConvertKit) platform help — email marketing, visual automations, sequences, landing pages, forms, Creator Profile, Commerce (digital products, paid newsletters), Creator Recommendations, subscriber tagging and segmentation, engagement scoring, API. Use when Kit emails aren't sending...
GetProspect platform help — B2B email finder, verifier, enrichment, and cold email outreach with 200M+ contacts and 26M+ companies. Includes LinkedIn Email Finder Extension, contact enrichment (40+ attributes), email verification (97% deliverability guarantee), and cold email sequences. Use when ...
Klaviyo platform help — AI-first B2C CRM and marketing automation for e-commerce with predictive analytics, 350+ integrations, and cross-channel messaging. Use when Klaviyo flows not triggering, segments returning wrong contacts, Shopify data not syncing to Klaviyo, predictive scores (CLV, churn)...
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