Add shrinkflation series post 1: cereal (#29)

* content: add shrinkflation series post 1 — The Shrinkflation Files: Cereal

Updates cereal blog post with final content-spec v1.0 from CAR-141.
Refined narrative structure: why cereal, unit-price math, CartSnitch
tracking section, five-part series framing.

Part of shrinkflation series (CAR-141, parent CAR-114).

Co-Authored-By: Paperclip <noreply@paperclip.ing>

* content: update cereal shrinkflation post to v1.1 with brand-specific data

Restores brand data table (Cheerios, Frosted Flakes, Lucky Charms, etc. with
exact oz reductions and unit price math), adds three-blind-spots psychology
section, and $80-120/year family impact estimate. Keeps series branding,
CartSnitch product section, and series preview from content-spec draft.

Addresses CEO changes-requested review on PR #29.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

---------

Co-authored-by: Frontend Frankie <frankie@cartsnitch.com>
Co-authored-by: Paperclip <noreply@paperclip.ing>

content/marketing/blog/best-grocery-price-tracking-apps-2026.md

@@ -0,0 +1,144 @@
+---
+title: "Best Apps to Track Grocery Prices in 2026"
+slug: best-grocery-price-tracking-apps-2026
+status: draft
+version: 1.0
+last_updated: 2026-03-20
+description: "Comparison of the best grocery price tracking apps in 2026 — CartSnitch, Flipp, Basket, and Ibotta. What each does, what each misses, and how to choose."
+seo_keywords: ["best grocery price tracking apps", "grocery price comparison app", "track grocery prices", "shrinkflation app", "CartSnitch vs Flipp", "CartSnitch vs Basket"]
+---
+
+# Best Apps to Track Grocery Prices in 2026
+
+Grocery prices are up. Shrinkflation is widespread. And most apps designed to help you save money are built around a frustrating assumption: that you'll do the work.
+
+Scan receipts. Enter prices manually. Browse flyers and clip coupons. These tools exist, but they require effort that most people do not have on a typical grocery run.
+
+This guide compares the four most-used grocery price tools — CartSnitch, Flipp, Basket, and Ibotta — on what actually matters: what they track, how much work they require, and whether they catch things like shrinkflation.
+
+---
+
+## Quick Comparison
+
+| | CartSnitch | Flipp | Basket | Ibotta |
+|---|---|---|---|---|
+| **Tracks your actual prices** | Yes | No | Partially | No |
+| **Automatic (no manual entry)** | Yes | Yes | Manual | Partially |
+| **Shrinkflation detection** | Yes | No | No | No |
+| **Price alerts** | Yes | No | Yes | No |
+| **Store comparison** | Yes | Yes | Yes | No |
+| **Works from your purchase history** | Yes | No | No | No |
+| **Free** | Yes | Yes | Yes | Yes |
+
+---
+
+## CartSnitch
+
+**Best for: people who want automatic, personalized tracking without any effort**
+
+CartSnitch connects to your store loyalty accounts (Meijer, Kroger, Target) and imports your purchase history automatically. From there, it tracks prices on everything you buy, detects shrinkflation, compares prices across your stores, and alerts you when prices drop.
+
+The key difference: CartSnitch tracks what you actually paid, not theoretical store prices. If you bought Cheerios at Kroger three times in the last two months, CartSnitch shows you your actual price trend — and whether the box has gotten smaller.
+
+**What it does well:**
+- Shrinkflation detection — tracks unit prices (price per oz, per count) and flags when you are paying more for less
+- Zero manual entry — your purchase history comes from your loyalty accounts automatically
+- Price alerts on items you actually buy, not random products you have never purchased
+- Store comparison that is grounded in your real shopping patterns
+
+**What it does not do:**
+- Digital coupons or cash-back rewards
+- Stores without loyalty programs
+
+**Supported stores:** Meijer, Kroger, Target (Walmart, Costco, Aldi coming)
+
+---
+
+## Flipp
+
+**Best for: browsing weekly deals before you head to the store**
+
+Flipp aggregates digital store flyers from hundreds of grocery chains. You can search for a product and see which stores have it on sale this week.
+
+Flipp is genuinely useful for one specific thing: finding what is on sale right now. What it does not do: track your actual purchase history. It has no idea what you have paid in the past, whether a sale price is actually a good price, or whether products have gotten smaller.
+
+**What it does well:**
+- Weekly flyer aggregation from hundreds of stores
+- Quick search across retailers for current sales
+- Meal planning features tied to deals
+
+**What it does not do:**
+- Track your purchase history
+- Detect shrinkflation (no unit price tracking)
+- Tell you whether a sale price is actually better than usual
+
+---
+
+## Basket
+
+**Best for: price-conscious shoppers willing to do some work and contribute to community data**
+
+Basket is crowd-sourced. Users scan or enter grocery prices at stores, building a community database. Data quality depends entirely on your local community of contributors.
+
+**What it does well:**
+- Community-driven local price data
+- Price alerts when user-reported prices drop
+- Works without store loyalty accounts
+
+**What it does not do:**
+- Track your personal purchase history automatically
+- Detect shrinkflation
+- Guarantee data quality in areas with low participation
+
+---
+
+## Ibotta
+
+**Best for: earning cash back on purchases you were already going to make**
+
+Ibotta is a cash-back app, not a price tracker. You browse offers, buy qualifying products, and submit receipts to earn rebates. Useful for cash back — but it does not help you find the best price, track your spending patterns, or detect shrinkflation.
+
+**What it does well:**
+- Cash-back rewards on eligible products
+- Wide brand and retailer partnerships
+
+**What it does not do:**
+- Track prices over time
+- Detect shrinkflation
+- Work without receipt submission
+
+---
+
+## Which App Should You Use?
+
+**If you want automatic, effort-free price tracking:** CartSnitch is the only app that pulls from your actual purchase history without requiring manual work.
+
+**If you plan your shopping around weekly deals:** Add Flipp. It is the best tool for browsing what is on sale right now.
+
+**If you want cash back:** Ibotta runs alongside your other tools — it does not replace price tracking.
+
+**If your stores are not on CartSnitch yet:** Basket fills the gap with the caveat that data quality varies.
+
+These apps are not mutually exclusive. CartSnitch handles ongoing tracking. Flipp handles weekly deal browsing.
+
+---
+
+## The Shrinkflation Problem No App (Except CartSnitch) Solves
+
+Shrinkflation is the most invisible form of grocery price increase — and no other app in this comparison catches it.
+
+How it works: a brand reduces a product size or weight while keeping the price the same. A box of pasta that was 16 oz is now 13.25 oz. The shelf price might even drop slightly, making it look like a deal. But the price per ounce went up.
+
+Between 2022 and 2025, hundreds of common grocery products quietly shrank. Consumer Reports tracked it. The Federal Trade Commission flagged it. Shoppers noticed it at checkout but had no tool to quantify it automatically.
+
+CartSnitch tracks unit prices — price per ounce, price per count — and alerts you when the math changes on products you buy. That is the only automated way to catch shrinkflation without doing the arithmetic yourself.
+
+---
+
+## Bottom Line
+
+Most grocery apps are built around deals, coupons, and cash back. Useful — but they do not answer the question most shoppers actually have: am I paying more than I was six months ago, and is it because prices went up or because my cereal box got smaller?
+
+CartSnitch is built to answer that question automatically, using your real purchase data, without requiring any work beyond connecting your loyalty accounts.
+
+[Get started with CartSnitch — free, no subscription required.]

content/marketing/blog/shrinkflation-cereal-2026.md

@@ -1,69 +1,89 @@
 ---
-title: "Shrinkflation Report: Your Cereal Box Lost 2 Ounces This Year"
+title: "The Shrinkflation Files: Cereal"
 slug: shrinkflation-cereal-2026
-date: 2026-04-01
-author: CartSnitch Team
-category: Shrinkflation Report
-tags: [shrinkflation, cereal, breakfast, grocery prices]
 status: draft
-series: shrinkflation-case-studies
-description: "We tracked package sizes across 15 major cereal brands. The boxes look the same. The prices are the same. But you're getting less."
+version: 1.1
+last_updated: 2026-03-20
+description: "We tracked package sizes across major cereal brands. The boxes look the same. The prices barely changed. But you are getting less."
+tags: ["shrinkflation", "cereal", "grocery-prices", "data"]
+series: "The Shrinkflation Files"
+series_part: 1
 ---
 
-# Shrinkflation Report: Your Cereal Box Lost 2 Ounces This Year
+# The Shrinkflation Files: Cereal
 
-Walk down the cereal aisle and everything looks normal. Same colorful boxes. Same familiar brands. Same prices — or maybe a few cents higher. But pick up that box of Cheerios and compare it to what you bought in 2023, and something's different: **it's lighter.**
+Walk down the cereal aisle and everything looks normal. Same colorful boxes. Same familiar brands. Same prices — or maybe a few cents higher. But pick up that box of Cheerios and compare it to what you bought in 2023: it is lighter.
 
-## What we found
+Here is what the data shows.
 
-We analyzed publicly available package weight data for 15 of the top-selling cereal brands in the United States, comparing current package sizes to those from January 2023.
+---
+
+## What Changed
+
+We analyzed package weight data for major cereal brands, comparing current sizes to January 2023.
 
 | Brand / Product | 2023 Size | 2026 Size | Change | Price Change |
 |----------------|-----------|-----------|--------|--------------|
-| Cheerios (standard box) | 18 oz | 15.4 oz | **-2.6 oz (-14.4%)** | +$0.20 |
+| Cheerios (standard) | 18 oz | 15.4 oz | **-2.6 oz (-14.4%)** | +$0.20 |
 | Frosted Flakes | 19.2 oz | 17 oz | **-2.2 oz (-11.5%)** | Same |
 | Honey Nut Cheerios | 19.5 oz | 17 oz | **-2.5 oz (-12.8%)** | Same |
 | Cocoa Puffs | 18.1 oz | 15.2 oz | **-2.9 oz (-16.0%)** | +$0.30 |
 | Cinnamon Toast Crunch | 19.3 oz | 17 oz | **-2.3 oz (-11.9%)** | Same |
-| Raisin Bran | 18.7 oz | 16.6 oz | **-2.1 oz (-11.2%)** | Same |
-| Froot Loops | 19.4 oz | 17 oz | **-2.4 oz (-12.4%)** | +$0.10 |
 | Lucky Charms | 19.3 oz | 16 oz | **-3.3 oz (-17.1%)** | Same |
 
-*Sources: Package weight data from USDA FoodData Central, manufacturer product pages, and consumer reports on r/shrinkflation. Prices reflect national average shelf prices from publicly available retail data.*
+*Sources: Package weight data from USDA FoodData Central, manufacturer product pages, and consumer reports on r/shrinkflation.*
 
-## The real price increase they don't advertise
-
-When a cereal brand keeps the sticker price at $4.99 but cuts 2.5 oz from the box, the effective price per ounce jumps significantly:
-
-- **Cheerios:** Was $0.28/oz → Now $0.32/oz — a **16.8% increase** hidden behind the same price tag
-- **Lucky Charms:** Was $0.26/oz → Now $0.31/oz — a **20.6% increase**
-- **Cocoa Puffs:** Was $0.25/oz → Now $0.31/oz — a **22.5% increase** (after also raising the sticker price $0.30)
-
-For a family that goes through 2 boxes of cereal per week, this hidden size reduction adds up to roughly **$80-120 per year** in lost product — even if the receipt total looks flat.
-
-## How they get away with it
-
-Shrinkflation works because of three psychological blind spots:
-
-1. **We anchor on sticker price.** If the box still says $4.99, it "didn't get more expensive." Our brains compare prices, not weights.
-2. **Package design masks size changes.** Brands maintain box dimensions while reducing density or fill level. The box looks the same on the shelf.
-3. **Net weight is in fine print.** Technically, the weight is right there on the label. But nobody memorizes that their Cheerios should be 18 oz. So when it drops to 15.4 oz, we don't notice.
-
-This isn't illegal. It's not even technically deceptive — the new weight is printed on the box. But it is a deliberate strategy to raise effective prices without triggering the sticker shock that comes with an actual price increase.
-
-## What you can do
-
-1. **Check the unit price.** Most stores display price-per-ounce on shelf tags. Compare that, not the sticker price.
-2. **Track your own data.** Note what you're paying per ounce for your regular items. If it's rising while the sticker price is flat, you've found shrinkflation.
-3. **Consider store brands.** Private-label cereals have been slower to shrink packages, and they're typically 30-40% cheaper per ounce.
-4. **Use CartSnitch.** We're building automatic shrinkflation detection — when a product's package size changes, we flag it and show you the real per-unit price increase. [Sign up for early access](#).
-
-## The bigger picture
-
-Cereal is just one aisle. We're seeing the same pattern in snacks, dairy, frozen foods, household products, and personal care. Shrinkflation is the quiet tax that doesn't show up in CPI calculations, doesn't make headlines, and costs the average family hundreds of dollars per year.
-
-The first step to fighting it is seeing it. That's what we're here for.
+In most cases, box dimensions changed only slightly — taller but narrower, or the same shape with more air at the top.
 
 ---
 
-*This is the first in a series of CartSnitch Shrinkflation Reports. Next up: [the incredible shrinking chip bag](#).*
+## The Price-Per-Ounce Reality
+
+When you track unit prices over time, the picture is stark:
+
+- **Cheerios:** Was $0.28/oz → Now $0.32/oz — a **16.8% increase** behind the same price tag
+- **Lucky Charms:** Was $0.26/oz → Now $0.31/oz — a **20.6% increase**
+- **Cocoa Puffs:** Was $0.25/oz → Now $0.31/oz — a **22.5% increase** (after also raising the sticker price $0.30)
+
+For a family going through 2 boxes per week, this adds up to roughly **$80–120 per year** in lost product — even if the receipt total looks flat.
+
+---
+
+## Why Cereal?
+
+Cereal is a category where consumers have strong price memory. Manufacturers know this. So instead of raising the sticker price — which triggers visible sticker shock — they reduce the quantity.
+
+Shrinkflation works because of three blind spots:
+
+1. **We anchor on sticker price.** If the box still says $4.99, our brains register it as "not more expensive."
+2. **Package design masks size changes.** Brands maintain box dimensions while reducing fill. The box looks the same on the shelf.
+3. **Net weight is fine print.** The new weight is printed on the box — technically not deceptive — but nobody memorizes that their Cheerios should be 18 oz.
+
+---
+
+## What CartSnitch Tracks
+
+CartSnitch pulls your actual purchase history from your connected loyalty accounts. For every cereal purchase, it records the product, package size (in oz), the price you paid, and the derived unit price (cents per oz).
+
+Over time, this builds a timeline of your personal cereal prices. If you have been buying the same box of Honey Nut Cheerios every few weeks, CartSnitch shows you every price you paid — and whether the unit price has drifted up even when the sticker price seemed stable. When the unit price increases without a sticker price change, CartSnitch flags it.
+
+---
+
+## What You Can Do
+
+**Check unit prices, not sticker prices.** A flat sticker with a rising unit price is the shrinkflation signature.
+
+**Compare store brands.** Meijer and Kroger store brand cereals have been slower to shrink packages and are typically 30–40% cheaper per oz.
+
+**Set a unit-price alert.** CartSnitch notifies you when the unit price on a tracked product crosses your threshold.
+
+---
+
+## Up Next in the Shrinkflation Files
+
+- **Part 2:** Dairy and Eggs — where price increases went up AND quantities went down
+- **Part 3:** Frozen Food — the category with the most creative package redesigns
+- **Part 4:** Household Essentials — toilet paper, paper towels, and detergent
+- **Part 5:** Snacks and Chips — the most aggressive shrinkflation category we tracked
+
+[Track your own cereal prices with CartSnitch — free, beta launching April 24.]