JKL Software
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UK software company · founded 2026

We make Weighve, the weight tracker that shows its working.

JKL Software Ltd is a small, independent British company building apps that are honest about what the data can and cannot tell you.

Our product

Weighve

Which way is your weight really going?

Weighve smooths the daily swings into one trend, and shows how sure it is.

Stays on your phone Exportable, always Back up and restore
Visit weighve.com Android · coming soon to Google Play
Weigh-ins Trend How sure
Inside Weighve

Today, the trend behind it, and how far you have come.

Weighve's Today screen with sample data: 87.85 kg inside a red-to-green dial with the needle at the green end, the word losing at minus 0.8 kg a week, and a bar showing half way from 95.75 kg to an 80 kg goal

Today

One dial: which way you are heading, as a share of your own plan.

Weighve's Chart screen with sample data: scattered daily weigh-ins with a smooth green trend line falling through them towards an 80 kg goal, estimated for around January 2027

Chart

Every weigh-in, and the trend through the noise.

Weighve's Progress screen with sample data: 7.9 kg down in 90 days, gold milestone medals at 90, 89 and 88 kg, and a week-by-week bar chart

Progress

Milestones passed, week by week.

Screens show sample data, not a real person's results.

Honest numbers

If the data cannot support a figure, we do not show one.

Yours to keep

Your data stays on your phone, and you can export it at any time.

No account

Open the app and start. There is nothing to sign up for.

Say hello.

hello@jklsoftware.co.uk