Methodology · Price Index
Price Index: how we track and verify prices
We track the published price of 7,464 products and tools across 790 categories. Tracking began June 2026; since then we have recorded 2,574 verified price changes — 1,392 cuts and 1,174 increases — in an append-only log. Every figure is sourced to the public page it was captured from — the seller's or maker's own wherever they publish the number, otherwise the named public source — and dated.
- Hardware products tracked
- 5,889
- Software tools tracked
- 1,575
- Categories
- 790
- Tracking since
- June 2026
- Recorded price changes
- 2,574
- Cuts vs. increases
- 1,392 ↓ / 1,174 ↑
How we verify — our process
We call it sourced, dated, corroborated, logged. The same five steps run on every product and every tool, every cycle:
- Source from the page that publishes the figure. Every price comes from the public page it was captured from — the seller's or maker's own wherever they publish the number, otherwise the named public source. The host travels with the figure in the source URL, so which one it was is on the record rather than assumed.
- Record the exact URL and access date. We store the source URL and the date we read it. A dated, linked figure is what separates a fact of record from an undated claim.
- Corroborate where a second source exists. Where a second authoritative source publishes the same figure, we capture it too, so the value carries provenance depth, not a single point of failure.
- Snapshot into an append-only change-log. Each cycle we compare today's price to the last recorded one and write a new dated point only when a price first appears or actually moves. The log is append-only — history is never rewritten.
- Publish corrections openly. Anyone can flag an error; fixes are free and logged publicly. Accuracy is never paywalled and never affected by payment.
Recent recorded price changes
| Date | Item | Category | Was | Now | Δ |
|---|---|---|---|---|---|
| Eyedro Home Energy Monitor HW | Home Energy Monitors | $179 | $139 | ↓22% | |
| Roborock Qrevo Curv 2 Flow HW | Robot Mops | $699.99 | $999.99 | ↑43% | |
| Elegoo Neptune 4 Pro HW | 3D Printers | $229 | $235 | ↑3% | |
| Bca Tracker3 Plus HW | Avalanche Beacons | $287 | $289 | ↑1% | |
| Smallrig Cage Sony Fx3 Fx30 HW | Camera Cages | $67.5 | $89.99 | ↑33% | |
| Xp Pen Artist Pro 16 Gen2 HW | Drawing Tablets | $459.99 | $499.99 | ↑9% | |
| Peak Saunas Matterhorn 3 HW | Home Saunas | $10750 | $11450 | ↑7% | |
| Jackery Solarsaga 100w HW | Portable Solar Panels | $299 | $249 | ↓17% | |
| Lenovo Idea Tab Pro Gen 2 HW | Tablets | $436.99 | $433.99 | ↓1% | |
| Ninja Foodi Flexbasket Dz071 HW | Air Fryers | $159.99 | $199.99 | ↑25% | |
| Suunto Wing HW | Bone Conduction Headphones | $99 | $149 | ↑51% | |
| Shark Ultracyclone Pet Pro Plus Ch951 HW | Car Vacuums | $99.99 | $69.99 | ↓30% | |
| Hoover Cleanslate Pet Fh14000 HW | Carpet Cleaners | $129.99 | $99.99 | ↓23% | |
| Modern Forms Wynd 52 HW | Ceiling Fans | $549.95 | $439.96 | ↓20% |
Use the data
The change-log is free to read and free to download under CC BY 4.0:
- Price-history change-log — the full append-only series (NDJSON).
- All data endpoints — datasets, CSV/JSON exports, schema.
- Audit ledger — the tamper-evident hash-chain; verify the data was never rewritten.
- Citation receipts — dated records of where this data was cited.
- Corrections log — every fix we have published.
- How we make money — why ordering can never be bought.
Cite this dataset
The full dataset is deposited on Zenodo with a permanent DOI, so it can be cited in research, journalism and reference managers. The DOI always resolves to the latest version:
https://doi.org/10.5281/zenodo.20721846
The Front Desk Review (2026). Software, subscription and consumer-electronics facts: a sourced, dated pricing & specs dataset. Zenodo. https://doi.org/10.5281/zenodo.20721846
Writers and data desks: every figure on this site is free to quote. Name us and the date beside the figure, so a reader can check it. Questions, a custom cut of the data, or the full press/data kit — [email protected].
Spotted a stale or wrong price? Email [email protected] — corrections are free and logged.