Independent software research43 records · prices verified 13.09.2026
The Plain StackSoftware decisions, with the receipts
FR
RESEARCH LOG

Everything we checked, and when.

Every price check, every recheck and every correction, dated and sourced. This is the record of the work, not a news feed.

43tools tracked
64price records
94sources cited
23corrections published
0hands-on tests

Every line is a check that was actually performed, with its date and its source. Corrections are our own mistakes; they are not counted as price movements. Nothing is ever deleted from this log — older entries are folded away, not removed.

13.09.2026

Correction

Five prices had only ever been read on the annual view

Notion, Linear, Gamma, Calendly and n8n were published at a figure the vendor only offers on a twelve-month commitment. Re-read on each vendor's monthly view: Notion €9.50 → €11.50, Linear $10 → $12, Gamma $9 → €10, Calendly $10 → $12, n8n €20 → €24. Hootsuite is now recorded in the euros its own page shows rather than in dollars. Perplexity was re-read and is unchanged: its public page still publishes no monthly-billing figure at all, and the record now says so.

Correction

Every French page had been returning a 404 for two days

A rebuild on 11 September began serving French articles at their English address, so every French URL that had ever been indexed stopped working. The translated addresses are restored, 69 permanent redirects now cover the broken window and the older spellings before it, and each page names its counterpart in the other language. Build checks were added that fail the deployment if a French page ever goes missing again.

Correction

n8n price corrected

We were publishing €20.00. The month-to-month price is €24.00. Corrected to the month-to-month figure already recorded in this record's own billing condition

Source · n8n.io ↗

12.09.2026

Correction

Fourteen records showed the annual rate as the headline price

Vendor pricing pages open on the annual view, and fourteen of our records had taken the number shown on arrival. The month-to-month figure was already written out in each record's own billing condition, so the error was in which number we promoted, not in what we observed. Jasper, Writesonic, Copy.ai, Zapier, Otter.ai, Fathom, Descript, Krisp, Miro, Trello, Asana, ClickUp, Airtable and Figma now show the price you pay without committing to a year, with the annual equivalent stated beside it. Miro is a disclosed partner and its published price went up like the rest.