Free Mouse Colony Management Software for Your Whole Lab
Free Mouse Colony Management Software for Your Whole Lab
Most labs don't abandon spreadsheets because they love Excel. They stay on spreadsheets because the "real" software costs money they'd rather spend on mice, reagents, and people — and because the pricing is usually per seat, so adding the three students who actually touch the colony every day triples the bill. So the PI buys one license, one person becomes the bottleneck, and the rest of the lab keeps a private copy of the truth in a notebook.
We wanted to remove that excuse entirely. Moustra is now free mouse colony management software — and not free for one person with everyone else locked out. Free for your whole lab. No per-seat fees, no 14-day trial clock counting down, no core feature hidden behind an upgrade button. This post explains exactly what "free" covers, why we did it, and how to get your team onto one shared colony today.
Moustra is free — here's what that actually means
"Free" is an abused word in software, so let's be specific about what it is and isn't here.
Free means you can create an account, set up your colony, and run real day-to-day management — animals, cages, matings, litters, genotypes, weaning, notifications — without entering a credit card and without a paywall waiting at the end of a trial. It is not a stripped "lite" tier designed to frustrate you into upgrading. The features labs actually use every day are in the free plan.
What it isn't: it isn't a data hostage situation. Your records are yours. You can export colony data for grants, reports, and publications whenever you want, so "free" never turns into "trapped." If your needs ever grow into something that genuinely warrants a paid tier, that's a conversation about added scale — not a toll gate on the basics.
Free for your whole lab, not just one seat
The detail that matters most: Moustra is free for multiple users. A colony in Moustra isn't one person's account. It's a shared workspace your whole team joins — PI, lab manager, postdocs, grad students, undergrads, and technicians — and adding them costs nothing.
This is the opposite of how most legacy lab software is priced. The classic model charges per user, so the natural incentive is to minimize seats. That's exactly backwards for a mouse colony, where the people doing weanings, setting up matings, and scanning cages at the rack are often the ones without a license. When only one person can log changes, everyone else hands them sticky notes, and the database drifts from reality by Thursday.
Removing per-seat cost flips the incentive. Now the right move — getting everyone who touches the colony into the same system — is also the free move. The student who weans a litter logs it themselves, in the moment, on their own login. That's the foundation of every good team collaboration workflow: one shared source of truth that everyone can write to.
What's included on the free plan
Here's what your lab gets at no cost. This is the working toolkit, not a teaser:
- Unlimited team members — add every student, tech, and collaborator who touches the colony
- Animal, cage, and rack management — full records for every mouse and housing unit
- Breeding and mating tracking — set up pairs, trios, or harems and follow each litter
- Litter and weaning workflows — log births, track pups, and never miss a wean date
- Genotype and allele management — define genes, alleles, and inheritance for your strains
- Plug event tracking — log vaginal plugs and auto-calculate embryonic days for timed pregnancies
- Smart notifications — weaning reminders, cage alerts, and activity updates
- Data export — pull audit-ready reports for IACUC, grants, and publications
- Mobile access — manage the colony from your phone, including barcode scanning at the rack
You do not need to assemble this from add-ons. It's the plan.
Free vs. legacy per-seat lab software
The difference isn't just the headline price — it's how the price scales as your lab grows. Here's the practical contrast:
| What you're comparing | Typical legacy lab software | Moustra (free) |
|---|---|---|
| Base cost | Annual license or quote-on-request | $0 |
| Pricing model | Per seat / per user | Whole lab, unlimited users |
| Adding a new student | Costs another seat | Free |
| Trial pressure | Time-limited trial | No trial clock |
| Core features | Often tiered or gated | Included |
| Your data | Sometimes export-restricted | Export anytime |
| Mobile app | Rare or extra | Included |
For a six-person lab, per-seat pricing is the difference between licensing one person and licensing everyone. If you've ever priced this out against the incumbents, our transparent pricing comparison shows why "call us for a quote" has been the industry norm — and why a flat, free, whole-lab model is a different animal. You can also see the current details anytime on the pricing page.
Why we made colony management free
A few honest reasons.
First, the per-seat model actively makes colonies worse. Good colony data depends on the people at the bench logging events as they happen. Charging per seat pushes labs to do the opposite — concentrate access, create a bottleneck, and let the records rot. We didn't want our pricing to be the reason a colony's data was unreliable.
Second, the labs that most need real software are often the ones with the least budget to spare: a new PI's first R01, a teaching lab, a small core facility, a single grad student trying to keep a strain alive across a rotation. Gating the basics behind a license meant those labs stayed on spreadsheets, which is exactly where avoidable mistakes — lost litters, missed weanings, mystery cages — come from.
Third, we'd rather win labs by being genuinely useful than by trapping them in a contract. Free for the whole lab is the clearest way to say: try the real thing, with your real team, on your real colony, and decide for yourself.
How multiple users share one colony without stepping on each other
A fair question once everyone has a login: doesn't shared access get chaotic? It's the right worry — uncontrolled shared editing is how spreadsheets fall apart. Moustra is built for the opposite.
Everyone works against the same live colony, so there's no "which copy is current" problem. When a student weans a litter or a tech moves animals between cages, the change is immediately visible to the whole lab. Activity is attributed, so you can see who did what, which keeps the record honest and makes training new members far easier — they learn by doing, in the real system, instead of shadowing the one person with the license.
Notifications keep the team aligned without anyone babysitting a dashboard: weaning reminders, cage alerts, and colony updates reach the people who need them. The result is the thing per-seat pricing quietly prevents — a colony where the data matches the rack because everyone who changes the rack also updates the data.
Get your lab set up in four steps
You can go from zero to a shared colony quickly:
- Create your account at app.moustra.com — no credit card.
- Import your existing data. If you're coming from Excel, follow the spreadsheet migration guide to bring animals, cages, strains, and litters over without retyping.
- Invite your whole team. Add every student, tech, and collaborator — it's free, so don't ration invitations.
- Set up notifications so weaning dates and cage alerts reach the right people automatically.
Most labs are managing a real colony the same day they sign up.
What free changes for small labs and core facilities
Picture a four-person lab keeping a handful of strains alive on a tight budget. On per-seat software, the PI licenses one account, the colony lives in one person's head and one person's login, and the moment that person is at a conference, weanings slip. Switching to a free, whole-lab tool isn't just a line-item saving — it changes who's responsible for the data. Suddenly all four people own their corner of the colony, log their own events, and see the same truth.
That's the real payoff. Free removes the budget excuse; unlimited users removes the bottleneck excuse. What's left is a colony where the records are reliable because keeping them reliable finally costs nothing — not money, and not a fight over who gets the one seat.
If you've been rationing software seats while your grad students keep a shadow spreadsheet, this is the moment to stop. Move your colony into one shared system, add every person who touches a cage, and let the data finally match the rack — at no cost. Give Moustra a try and get your whole lab on the same page today.
