CortexLit

CortexLit tool · Movement · Runs offline · No account

Tracker Rule Builder

Turn a tracker number into an if-then rule with a floor, an action and a review date, and print it.

← Back to the article · See the evidence

This tool gives general information based on the research summarised in Activity Trackers: What the Trials Say They Do. It is not a medical device, does not diagnose, and does not replace advice from your clinician.

Your inputs

Share (opt-in)

Off by default. Anything here is built on your own device and nothing is uploaded. Pick exactly what goes on the card.

Preview of exactly what would be shared:




Free vs Plus

Free (this page)

  • full if-then rule with floor and trigger
  • printable card
  • text export and print
  • all citations and cautions

Plus (optional, one-time)

  • calendar (.ics) review reminders
  • unlimited share images
  • share card without the 'Made with CortexLit' footer

Checkout isn't live yet, so Plus is unlocked here with a local code. The check runs in your browser and can be bypassed; it is a placeholder for a real payment link.

Free tier: 1 share image per result.

Commercial disclosure: optional paid Plus tier; all evidence, cautions and the main result are free. No affiliate links, no sponsors.

What this is based on

Every output names at least one verified PubMed source. Identifiers were verified on 2026-10-11 in an earlier batch and carried over into this build; they were not re-queried here, and no retraction database was checked. Verification was at abstract level.

Brickwood 2019
Brickwood KJ, Watson G, O'Brien J, et al. Consumer-Based Wearable Activity Trackers Increase Physical Activity Participation: Systematic Review and Meta-Analysis. JMIR Mhealth Uhealth. 2019;7(4):e11819. doi:10.2196/11819. PMID: 30977740.
PMID 30977740 · systematic review meta analysis · weight 1.0 · abstract level

Ferguson 2022
Ferguson T, Olds T, Curtis R, et al. Effectiveness of wearable activity trackers to increase physical activity and improve health: a systematic review of systematic reviews and meta-analyses. Lancet Digit Health. 2022;4(8):e615-e626. doi:10.1016/S2589-7500(22)00111-X. PMID: 35868813.
PMID 35868813 · systematic review · weight 1.0 · abstract level

Chen 2015
Chen XJ, Wang Y, Liu LL, et al. The effect of implementation intention on prospective memory: a systematic and meta-analytic review. Psychiatry Res. 2015;226(1):14-22. doi:10.1016/j.psychres.2015.01.011. PMID: 25639373.
PMID 25639373 · systematic review meta analysis · weight 1.0 · abstract level

Limits: This builds a rule; it does not verify your tracker data or predict whether you will follow it. The if-then evidence comes from lab studies of prospective memory in young adults.

Privacy

Inputs stay in this page's memory. There is no telemetry, no analytics call and no network request. Saving is opt-in, local to this browser, deletable, and unencrypted.