Free tools for pool service companies

Most free pool service stacks are built out of general-purpose tools bent to fit the work. A single free Google account covers five of the jobs below - the schedule, the customer list, the service log, the route map, and a separate business phone number - which is why so many routes run on one. The gaps are not in the tools themselves; they are in the seams between them, because nothing in a generic stack knows that a pool is a pool.

The table is the practical version of the answer. Each row is a job an operator has to do every week, the free option people actually use for it, and the specific point where that option stops being enough. Read the third column first if you are deciding what to set up: it tells you which of these you will outgrow and which you will keep forever.

Only one category on that list is purpose-built for pool work and still free, and it is the one you use at the pool: chemistry calculators. Every dose you will ever add starts from a gallon number, and getting that number wrong makes every calculation after it wrong. A 16x32 rectangular pool at 5 ft average depth holds roughly 19,200 gallons, and a pool volume calculator gets you there in one screen for shapes that are harder to eyeball than a rectangle.

From there, three more cover the math you actually do on a route. A salt calculator sizes the bags for a new pool or a cell that is reading low. A chlorine and shock calculator handles routine dosing and a shock treatment. An alkalinity and pH calculator covers the balancing you do before either of the other two will hold. None of them ask for an account, an email, or a card, and if you want the reasoning behind the doses rather than just the number, the longer walkthrough of how much chemical to add covers the same math by hand.

Use them the way a tech actually works: get the volume once per pool and write it down somewhere permanent, because it never changes and every future dose depends on it. That single number is the difference between a calculator being a one-off convenience and being the thing that makes your dosing consistent across a whole book of pools.

A free stack breaks in the same three places for everyone, and none of them show up in the first few months. The first is chemical history: a calculator gives you today's dose and forgets it, and a spreadsheet row is not a trend. Three years of weekly service on 40 pools is about 6,240 visits, and the value of that record is not in any single row - it is in being able to see that one pool's calcium has climbed every summer for three years.

The second is proof. A customer who calls about cloudy water does not want to hear what you remember adding; they want to see what was added and when. A form response sitting in a spreadsheet tab is not something you can put in front of them. The third is the gap between the route and the invoice: in a free stack, the visit happens in one place and the bill gets written somewhere else from memory, which is where unbilled visits and forgotten extras quietly come out of your margin.

None of that argues against starting free. It argues for knowing which failure is going to find you first. On a small route it is almost always the proof problem, because it only takes one dispute, and the record you needed had to exist before the phone rang.

Yes, and the distinction that matters is free tier versus free trial. PoolBoss has a permanent free plan: $0, up to 20 pools, one admin user, no credit card at signup, and every feature included rather than a stripped-down preview - routes, chemical tracking, service reports, invoicing, and the mobile app. Most tools in this category offer a trial that expires in one or two weeks and then stops working, which is a different thing wearing the same word.

Keep it separate from the calculators in your head. The calculators are a pre-signup utility - no account, no limit, use them on someone else's pools if you want. The free plan is a real account with a real ceiling, and it is where the per-pool history and the customer-facing service report live, which are exactly the two things the free stack could not do. Under 20 pools, that combination costs nothing, which makes the honest advice here uncomfortable for a software company: if you are running eight accounts, you do not need to spend money on software, and you should not.

A solo operator around Mesa and Gilbert, Arizona, six months in, running eight pools. Addresses and gate codes live in a Google Sheet, the weekly route is a repeating Google Calendar event, and customers pay by Venmo. That is a completely reasonable setup for eight pools, and it costs him nothing. The dosing math he does on paper until a customer's salt cell starts throwing a low-salt error on an 18,000-gallon pool and he needs to know exactly what to add: about 150 pounds to bring it up 1,000 ppm, roughly four 40-pound bags. He finds a free salt calculator, gets the number in one screen without signing up, and starts using the volume and chlorine calculators the same way on other stops.

By month eight he is at seventeen pools and has a part-time helper, and the sheet has three different formats for the notes column depending on who filled it in. Then a customer calls about cloudy water and asks what was added last week. There is no answer - the calculator did the math and forgot it, and the only record of the visit is a Venmo memo that says "pool." Nothing about that is a disaster, and no customer left over it. But it is the exact moment the free stack stopped being free, because the thing he now needs is a record he should have been keeping for eight months. He signs up for the free plan, still at $0, to get chemical history and service reports in place before he crosses 20 pools and has to make a real decision.