---
title: "Tenon Log — small-crew site diary (not built)"
description: "A German-first site diary (Bautagebuch) for crews of one to five: a day entry in under a minute, offline, one price for the whole crew. Not released."
canonical_url: "https://tenon.tools/log/"
language: "en"
date_published: "2026-08-18"
last_updated: "2026-08-20"
source: "Tenon Tools"
---

# Tenon Log — the site diary for small crews

_Published: 2026-08-18_

> **Tenon Log does not exist yet. This page is not a store: there is no app, no price you can pay today, and no release date. Whether it gets built at all is decided by a German waitlist, and the decision date is 31 October 2026.**

_One entry per working day, in under a minute, offline on site — and a finished daily report as a PDF for the client._

> Tenon Log is a planned site-diary app for building firms of one to five people: one entry per working day in under a minute — weather, who was on site and for how many hours, work performed per trade, materials, obstructions, photos, signature — and from those entries a finished daily report as a PDF for the client, fully offline and with no account. The intended price is one licence for the whole firm rather than per seat: €29.99 a year or €69.99 once. It is not built, it cannot be bought, and no release date is being claimed. This page exists so the cross-promotion inside our other apps has somewhere honest to land.

The disconfirmation first, because it is the reason this page is a waitlist and not a product. We have no evidence that small German crews are angry about per-seat pricing. Six German incumbents were counted specifically — 608 reviews, 248 critical — and not one review contains a firm of this size identifying itself as such, so not one complains about being charged per head. Across the whole site-diary category, explicit per-seat price anger is 1 review out of 2,881 critical ones (0.03%).

That zero is a wrong-instrument result, not a refutation: a buyer priced out by a per-seat quote never installs the app and therefore never reviews it. What we do have is the structure — German incumbents commonly list €15–25 per user per month, some with seat minimums. What we lack is proof that this bothers you. The waitlist is how that gets settled, and if it settles the wrong way the app is not built.

Tenon Log is German-first by design: the market is Germany, and the legal framing — the Bautagebuch, obstruction notices under § 6 VOB/B — is the product rather than a translation of it. The German page is the real one; this is its English summary.

## At a glance

- **One entry, under a minute** — One screen, never a wizard: yesterday's entry can be carried over, weather fills itself in, and exactly one field is mandatory — the work performed.
- **One price for the whole crew** — The intended licence is per firm, not per seat — the crew shares it, fair use across five devices. What it is meant to cost is below; none of it is purchasable today.
- **Daily report as a PDF, offline** — Entries are meant to become a German Bautagebuch PDF or an English daily report — a single day or a date range, with photos and signature, produced without a network and without an account.

## Price (intended)

**€29.99 a year or €69.99 once — intended, not purchasable** — For the whole firm, not per seat, with fair use across up to five devices. "Intended" is meant literally: this exact price is what the waitlist is testing, you cannot pay it anywhere today, and if the test contradicts it the price changes rather than the story.

The planned free tier is one project with unlimited entries; its PDF reports carry a watermark.

_No per-seat pricing. No ads. No account. And no buy button today, because there is nothing to buy._

## What is Tenon Log meant to do?

The v1.0 scope is closed and will not quietly grow. It is shaped around a single routine: five minutes before knocking off, record the day; at the end of the month, hand the client a report.

- Projects with a day strip — one entry per working day, done or missing at a glance
- Weather and temperature filled in automatically, editable, and never blocking when offline
- People present with role and hours, so the hours record falls out of the diary
- Work performed per trade, materials and deliveries, free notes
- Obstructions (Behinderungen) as their own field — the same-day facts an obstruction notice under § 6 VOB/B needs
- Photos attached to the entry, through the same stamp-and-seal module Tenon Cam uses
- Signature on glass, taken on site
- PDF output: a single day or a date range, German Bautagebuch template plus an English daily report
- One-tap handover over WhatsApp, email or the system share sheet
- Everything stored offline, with an automatic local backup plus manual export and import
- Duplicate-yesterday and an evening reminder, so no working day is missed

## Why is there no download here?

The build is gated on demand evidence that has been written down in advance: signups on the German waitlist, structured interviews with firms from it, and independent instances found in German trade forums. The decision date is 31 October 2026. Nothing about this page moves that gate, and a release date published before the gate would be a number with nothing behind it.

If the gate passes, the app is built and ships in German first — written natively, not translated. If it fails, we say so by email instead of leaving the list sitting there.

## What is Tenon Log deliberately not?

Not a construction-management platform. No account, no cloud, no office-to-site sync, no team feed, no quotes and no invoices. Entries are meant to live on your device, which means we never see them and can neither lose nor switch them off.

That is a decision, not a gap. A firm that needs office, site management and subcontractors kept in sync is better served by a platform, and pays for one. The cost of the small, fixed version is that the backup is yours: the app is meant to back up locally on its own and offer a manual export — using it is still your job.

## FAQ

### When does Tenon Log come out?

There is no date, and none is being invented. First comes the decision on 31 October 2026 about whether it is built at all; only after that can a release date mean anything. The waitlist hears both — the decision, and any later date.

### Is there an English version?

The plan is German and English at launch, with the remaining languages in the first update. The German edition leads because the legal vocabulary is the product: Bautagebuch, Behinderungsanzeige, § 6 VOB/B. An English daily-report template ships alongside it.

### Why is the price in euros?

Because the market is Germany. €29.99 a year or €69.99 once, for the whole firm rather than per seat, is the intended price and the thing the waitlist is testing. Store pricing in other currencies would be set at release, and there is no release.

### How does this relate to Tenon Cam?

They are one codebase family. Cam's stamp-and-seal module — the pipeline that burns the stamp into the pixels at capture and seals a hash into EXIF — is the same module Log's diary photos would use. Tenon Cam is a separate app with its own scope; it is also not released yet.

### Can I be told when it launches?

Yes — the form below is the general Tenon Tools launch list, one email per app when it ships. The German waitlist on the German page is the one that decides Log itself; keeping the two lists apart is what keeps that count honest.

---

_This page describes a planned app. It is not an offer and not a commitment: scope and price may change before any release, and there may be no release. Notes about German construction documentation are practical orientation, not legal advice._

Page: https://tenon.tools/log/ — this file is its markdown mirror. All mirrors: https://tenon.tools/llms.txt
