Calibration software for small shops
The honest version first: under about 150 instruments, a well-kept spreadsheet can do this job. What matters is knowing where the spreadsheet stops, and what stepping up costs when it does.
The short version
Most calibration software pages want to sell you the upgrade. Here is the version a small shop actually needs: below roughly 150 instruments, a disciplined spreadsheet with one owner passes audits every day, and Gaugelog's free calibration log template gives you that spreadsheet. The line moves when reminders start getting missed, when a second person needs the register, when an auditor asks for history the sheet cannot show, or when the one owner leaves. At that point the step up is small: free up to 30 gauges, and a $49 plan that covers 150. Until then, keep the sheet and keep it well. Details checked 11 July 2026.
The threshold test
Five honest questions decide whether a small shop needs software at all. Count your yeses.
Has a due date been missed because nobody opened the file?
A spreadsheet warns nobody. If the answer is yes, the core mechanism has already failed once, and the audit finding is a matter of timing. This is the strongest single signal to move.
Does more than one person need the register?
Shared files fork. Two copies of the truth on two laptops is how instruments disappear from tracking. Software with unlimited users keeps one register everyone reads, including on the Free plan.
Can you show history, not just current state?
Auditors ask what the gauge read at its last calibration and what you did when one failed. A sheet holds a date; a record system holds as-found and as-left results, certificates and the trail of changes.
Would the register survive the owner leaving?
The commonest calibration crisis in a small shop is inheritance: the person who kept the sheet is gone and the audit is already booked. A register with its history and settings in one shared place survives the handover.
Still under the line on all four?
Then stay there. Download the free calibration log template, keep it disciplined, and revisit when one of the signals above shows up. Nothing here expires, and we would rather you come back in a year than churn in a month.
Free calibration log templateThe free plan is the small-shop plan
Free covers 30 gauges with unlimited users, certificate branding, Excel import and the interval library included. It is not a trial and it does not expire. A shop with two dozen instruments can run its whole program on it and never pay.
See what every plan includesThe step after Free is sized for small shops too
Starter covers 150 gauges at $49 per month billed annually, which lands where small shops actually buy. Per gauge, never per seat: the price follows your instrument count, not your headcount. No hidden fees. Ever.
The spreadsheet you keep today becomes the import file
Whenever the line is crossed, upload the sheet as it is. The mapper reads your column headers, you confirm the mapping, and past calibrations import as history. Nothing you maintain in the meantime is wasted work.
What Gaugelog doesn’t do
- If a spreadsheet is working for you, we mean it: keep it. The free template is complete, not a teaser.
- No measurement uncertainty calculations and no 17025 lab math. Gaugelog is for shops that use calibrated instruments, not calibration labs working under accreditation.
- No on-premises install. Cloud only, hosted in the EU, with full export on every plan: cancel anytime, export everything.
What your auditor sees
Overdue gauges are the first thing an auditor checks. When they ask, you answer with documents, not promises. Both samples below are generated by Gaugelog from fictional data.
Weighing it against another tool?
Small shops usually shortlist GageList next to Gaugelog. The comparison covers the free tiers, alert cadence and fees, dated and sourced, and says where GageList wins.
A GageList alternative without the ceilingsQuestions, straight answers
How many instruments before software makes sense?
Around 150 is the honest line, and it is fuzzy. Below it, one disciplined owner and a good template pass audits routinely. The signals that move the line earlier: missed reminders, multiple people needing the register, auditors asking for history, or the owner of the sheet leaving.
Is the free plan really free?
Yes. 30 gauges, unlimited users, import, certificates with your logo and the interval library, with no card and no expiry. You upgrade only when your register outgrows the cap; nothing converts on its own.
What does the first paid plan cost?
$49 per month billed annually, or $59 month to month, for up to 150 gauges. Unlimited users on every plan. No one pays to look.
We are two people and forty instruments. What should we do?
Download the free template, or open a Free account if you want reminders and shared access. Both are honest starting points: the template costs nothing to leave, and the Free plan costs nothing to keep.
What happens when we outgrow the free plan?
You move up one step, and the price follows gauge count only: your register, records and settings carry over unchanged. Cancel anytime, export everything.
Weighing your options before the audit?
Gaugelog is in development and launches in 2026. Until then you can generate a clean calibration certificate PDF with our free tool, no account needed, and compare the plans on the pricing page.