---
title: Read a Peak-Flow Log as Session Bests, Not Averages — Free
description: Three attempts in, one number out — but which one? Keep the largest attempt per session separate from the others before you compare sessions, and the log stays inspectable instead of collapsing into a guessed average.
category: health
last_verified: 2026-10-01
freshness: green
published: 2026-10-01
canonical_url: https://gratis-ai.pages.dev/articles/peak-flow-session-best-log.html
companion_app_url: https://gratis-ai.pages.dev/apps/peak-flow-session-best-log.html
reading_time_minutes: 10
tags: health, peakbest, local-first, explicit-assumptions, no-account
---

# Read a Peak-Flow Log as Session Bests, Not Averages — Free

Three attempts in, one number out — but which one? Keep the largest attempt per session separate from the others before you compare sessions, and the log stays inspectable instead of collapsing into a guessed average.

**Free and complete.** This guide is a standalone free tool — no account, no card, anywhere. The only paid option is one optional extra outcome: $4 one-time. Nothing in the free tier is gated.

## Who it's for

People who log peak-flow readings and want them sorted honestly

## What's free

- one complete unwatermarked peak-flow strip run in the app
- three labeled samples and unlimited article-demo calculations
- complete result text and a user-triggered input-state link

## Optional paid add-on

**$4 one-time.**

- unlimited subsequent peak-flow strip app calculations after a local convenience signal
- print the peak-flow strip with visible assumptions and its safety boundary
- CSV of the displayed L/min best and row workings; conditional estimate uses your manual-retyping minutes
- five local reading summaries (headline/count/time), not saved full inputs or cross-device backups

## Sources & verification

- Tool: GratisAI local-first instrument (no key, no account)
- Primary source: the free tool itself (local-first, no external dependency)
- Last verification: 2026-10-01 (green)

## Use it

- Interactive guide: https://gratis-ai.pages.dev/articles/peak-flow-session-best-log.html
- Companion app: https://gratis-ai.pages.dev/apps/peak-flow-session-best-log.html
- This machine-readable mirror: /mirrors/peak-flow-session-best-log.md

*Generated free at https://gratis-ai.pages.dev/articles/peak-flow-session-best-log.html — every guide on GratisAI is a complete, working tool. $0, no account, no card, anywhere.*