Plain: Horizon price hike $269→$299/mo + AI credits overhaul + Sidekick assistant now in base plan
What happened
Between the Mar 30, 2026 and Jun 29, 2026 captures of Plain's pricing page, Pulse recorded 3 changes: Horizon plan increased from $269/mo to $299/mo (additional seat $89→$99/mo). AI usage billing switched from a resolutions model (50/250/Custom, $100 per additional 100) to a credits model (2,000/15,000/Custom per mo); overage pricing is no longer shown as an explicit rate. Sidekick AI assistant moved from Frontier-exclusive to included at the base Foundation tier; Discord channel access moved from Horizon (bundled with Microsoft Teams) to Frontier-exclusive. In detail: AI usage billing metric changed from a 'resolutions' count model (Foundation 50, Horizon 250, Frontier custom; $100 per additional 100 resolutions) to a 'credits' model (Foundation 2,000/mo, Horizon 15,000/mo, Frontier custom credits). Overage pricing is no longer shown as an explicit rate - the comparison table now just says 'Credits apply' instead of '$100/100'; Sidekick AI assistant moved from Frontier-exclusive to included at the base Foundation tier (and thus all tiers). Discord channel access moved the opposite direction - previously bundled with Microsoft Teams at the Horizon tier, now Frontier-exclusive only; Horizon plan price increased from $269/month to $299/month; additional-seat price increased from $89/month to $99/month. Pulse files it as a pricing change (metric change, feature change, price increase) with an upward direction. Pulse's latest capture (Oct 12, 2026) lists Foundation at $45 and Horizon at $99.
It lands 38 days after Plain's previous change, "Plain removes machine users from all plan feature tables" (May 27, 2026). Before that Pulse recorded "Plain hikes Foundation 469% to $199, swaps AI per-resolution for credits" (May 5, 2026) and "Plain moves Discord channels to higher-tier Frontier plan only" (Apr 28, 2026). Plain has been tracked since 2026-03-02.
In the same window Revolut, Squarespace, Stripe and Brex also changed their CRM pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.
- Foundation, Horizon, Frontier · Pricing modelReworded$100/100Credits apply
- Frontier, Foundation, Horizon · FeatureChangedFrontier-exclusiveincluded
- Horizon · Price+11%$269/month$299/month
| Plan | Field | Before | After | Change |
|---|---|---|---|---|
| Foundation, Horizon, Frontier | Pricing model | $100/100 | Credits apply | Reworded |
| Frontier, Foundation, Horizon | Feature | Frontier-exclusive | included | Changed |
| Horizon | Price | $269/month | $299/month | +11% |
Values as written on Plain's public pricing page in the two captures Pulse compared; where the page states no number, the cells give the wording before and after.
Evidence
The two captures Pulse comparedFull-page captures of Plain's pricing page (plain.com) from Mar 30, 2026 and Jun 29, 2026; the change is marked near the top of the page, where horizon price reads $269/month and then $299/month.
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The two full-page captures with this change marked up are free with an account.
Plain, the last 90 days
Full history- Oct 12, 2026improvedPlain adds $10-$100 credit top-ups, doubles Foundation credits to 1,000/month
- Oct 5, 2026packagingPlain swaps seat bundles for $45 and $99 per-user pricing, cuts AI credits
- Jul 4, 2026improvedPlain: Horizon price hike $269→$299/mo + AI credits overhaul + Sidekick assistant now in base plan · this change
- May 27, 2026packagingPlain removes machine users from all plan feature tables
- May 5, 2026packagingPlain hikes Foundation 469% to $199, swaps AI per-resolution for credits
- Apr 28, 2026improvedPlain moves Discord channels to higher-tier Frontier plan only
Across CRM in the same window
All CRM changes- RevolutJul 4Revolut: Commission-free trades broken for Standard/Plus; Flexible Cash Funds APY adjusted
- SquarespaceJun 2Squarespace slashes prices up to 30% across all subscription tiers
- StripeApr 27Stripe rebrands Financial Accounts as Treasury
- BrexApr 18Brex Offers Up to 90K Bonus Points for New Signups in Limited-Time Deal
Questions about this change
Did Plain raise prices in June 2026?
Yes. Pulse captured Plain's pricing page on Mar 30, 2026 and again on Jun 29, 2026 and recorded 1 price increase: Horizon: $269/month → $299/month (+11%).
What changed on Plain's pricing page between Mar 30, 2026 and Jun 29, 2026?
Foundation, Horizon, Frontier pricing model: $100/100 → Credits apply, reworded; Frontier, Foundation, Horizon feature: Frontier-exclusive → included, changed; Horizon price: $269/month → $299/month (+11%). Pulse compared the captures it took on Mar 30, 2026 and Jun 29, 2026; the before/after table above lists each item as written on the page.
How often does Plain change its pricing?
Pulse recorded 3 other pricing-page changes for Plain in the 90 days before this one; the previous change was "Plain removes machine users from all plan feature tables" on May 27, 2026; Plain has been tracked since 2026-03-02.