Build vs Buy a Mentoring Platform: Do You Need Software?
Build vs buy for a mentoring platform comes down to three options: run the program yourself with spreadsheets, forms and calendars; build an in-house tool; or buy mentoring software. Spreadsheets suit small pilots, building suits organizations that already ship software, and buying suits most programs that need to grow without growing the admin team.
This guide is vendor-neutral. It compares the three options, shows what a do-it-yourself setup looks like when it works, lists the signals that you have outgrown it, and ends with a checklist you can use in a planning meeting. If you are new to the category, start with what mentoring software is and what it does.
What are your three options?
Every mentoring program needs the same basic jobs done: collect applications, match people, help them meet, keep them going, and report what happened. The question is who does those jobs: people with general tools, your own developers, or a product built for it.
- Do it yourself (DIY). General tools you already have: Google Sheets or Microsoft Excel for the participant list, Google Forms or Microsoft Forms for applications and feedback, shared calendars and email for meetings.
- Build in-house. Your own developers create a mentoring tool, or extend an intranet, LMS or HR system with mentoring features.
- Buy. Subscribe to mentoring software that already covers applications, matching, scheduling, reminders and reporting.
None of these is right for everyone. The table below compares them on the points that usually decide it.
How do DIY, build and buy compare?
| Criterion | DIY (sheets, forms, calendar) | Build in-house | Buy mentoring software |
|---|---|---|---|
| Setup effort | Low: a few days to set up forms and a sheet | High: design, development, testing, security review | Low to medium: configure a program, import participants |
| Matching at scale | Manual; fine for a few dozen people, slow beyond that | Whatever you build; good matching logic takes real effort | Usually built in, often with rules or self-selection |
| Scheduling | Participants arrange meetings by email or calendar invites | Requires calendar and video integrations you build and maintain | Usually built in: availability, booking, calendar sync |
| Reminders and follow-up | Manual emails from the coordinator | Requires scheduled jobs, email delivery and templates | Usually automated and targeted |
| Reporting | Rebuilt by hand in the sheet each time | Whatever you build; every new question is a new feature | Standard reports and exports |
| Data protection | Depends on sharing settings and discipline; easy to overshare a sheet | Your responsibility end to end | Shared: vendor secures the platform, you control access and contracts |
| Maintenance owner | The program coordinator | Your engineering team, indefinitely | The vendor |
| Cost type | Mostly staff time | Development budget plus ongoing engineering time | Subscription plus some admin time |
Two points are easy to miss. First, DIY is not free: its cost is coordinator time, and that grows with every participant. Second, building is not a one-time cost: the tool needs someone to keep it running after the project team moves on.
What does a DIY mentoring program look like?
A DIY setup is a sensible way to run a first pilot. It lets you learn what your program needs before you commit to anything. Here is a version that works for a small cohort.
- Write your matching criteria first. Pick three to five things that matter: goals, skills or field, seniority, location or time zone, language. Ask the same questions of mentors and mentees so the answers line up.
- Create two forms. One for mentors, one for mentees, in Google Forms or Microsoft Forms. Use dropdowns and checkboxes rather than free text wherever you can; free text is hard to match on.
- Collect everything in one sheet. Link both forms to a single Google Sheets or Excel file. Add columns for match status, match date, first meeting date and last check-in.
- Match by hand. Sort and filter by your criteria, propose pairs, and have a second person review them. Record why each pair was matched in a notes column.
- Send introductions. Email each pair with names, the reason they were matched, expectations for the first meeting and a suggested schedule.
- Let pairs book meetings. Mentors share a booking link or a few time slots from their calendar; pairs add their own video links.
- Check in on a rhythm. Send a short check-in form every three or four weeks: have you met, how useful was it, do you need help. Copy the answers into the main sheet.
- Close with a survey. At the end of the cycle, send a final feedback form and build a simple summary: pairs matched, pairs that met, satisfaction, what to change.
Lock down sharing on the sheet from day one. It holds personal data, and a link shared “with anyone” is easy to forward by mistake. If you are in the EU or UK, the GDPR applies to this data whatever tool you use.
Done carefully, this works. Many programs start exactly like this, and the lessons from it make any later software decision much better.
When have you outgrown spreadsheets?
The DIY setup does not break on a specific day. It gets slower and more fragile until the coordinator spends most of their time maintaining it. Watch for these signals:
- Matching takes days, not hours, and you are no longer sure the pairs are the best ones available.
- Pairs go quiet and nobody notices until the end-of-cycle survey.
- Reminders depend on one person remembering to send them, and stop when that person is on leave.
- Several cohorts or programs live in separate copies of the same sheet, and nobody knows which version is current.
- Reporting means a rebuild. Each time leadership or a funder asks a question, someone spends a day reshaping the data.
- Access is hard to control. Too many people have edit rights to a file full of personal data.
- Participants ask for more: a place to see their mentor’s profile, book a slot, or find program resources.
If three or more of these sound familiar, it is time to choose between building and buying. Our guide to managing a mentoring program covers the day-to-day work that any tool should make lighter.
What are the hidden costs of building in-house?
Building looks attractive when you have developers and a clear idea of what you want. The first version is often quick. The costs come afterwards, and they are mostly ongoing rather than one-off.
- Maintenance. Calendar and video integrations change, browsers change, email deliverability rules change. Each change needs a developer, and mentoring tools rarely stay at the top of an engineering backlog.
- Feature growth. The first request after launch is usually “can we also…”: a second program, group mentoring, a new report, a certificate. Every one of them is a new project.
- Security and data protection. You become responsible for access control, encryption, backups, audits, data processing records and deletion requests. Under laws such as the GDPR, those duties do not go away because the tool is internal.
- Accessibility. Participants with disabilities must be able to use the tool. Meeting a standard such as WCAG takes design and testing effort, and it has to be checked again with every change.
- Localization. If participants work in more than one language, the interface, emails and help texts all need translating, and every new feature adds strings to translate.
- Knowledge risk. When the developer who built it leaves, the tool can become something nobody wants to touch.
Building still makes sense in some cases: when mentoring is a feature of a product you already sell, when it must live deep inside an existing platform your users never leave, or when your requirements are so unusual that no product covers them. Outside those cases, compare the ongoing cost of ownership with a subscription before you start.
What about buying mentoring software?
Buying moves maintenance, security of the platform and most of the feature work to a vendor. In exchange, you accept the product’s way of working and pay a subscription. The main risks are choosing a tool that does not fit your program, or one priced for a much larger organization than yours.
To reduce both risks, define your requirements first and test with a real pilot. Our guide on how to choose mentoring software has a checklist, a scoring method and the questions to ask vendors. To see how vendors publish their pricing and features, compare the best mentoring software on public facts, or start with the list of free mentoring software if your budget is tight or you are still at the pilot stage.
Which option should you choose? A decision checklist
Go through these questions with the people who will run the program. Count where most of your answers land.
| Question | Points to DIY | Points to build | Points to buy |
|---|---|---|---|
| How many participants in year one? | Up to a few dozen | Any size | Dozens to thousands |
| How many programs or cohorts? | One | Any | Several, or more planned |
| Is this a pilot or a long-term program? | Pilot | Long-term, core to your product | Long-term |
| How much coordinator time is available each week? | Plenty | Some | Little |
| Do you have developers with spare capacity for years, not months? | Not needed | Yes | Not needed |
| Is mentoring part of a product you sell? | No | Yes | No |
| Do you need reminders and reports without manual work? | No | You will build them | Yes |
| Do you need clear answers on data protection and access control? | Hard to give | Yours to provide | Ask the vendor in writing |
| Do participants need more than one language? | Manageable by hand | You must translate | Check the vendor’s languages |
A common path is to run one DIY pilot to learn what you need, then move to software for the second cohort. If you go that way, keep your matching questions and your feedback forms: they become the starting configuration for whatever tool you choose. More planning help is in our mentoring guides.
Where does Mentornity fit?
If you run a program and are leaving spreadsheets behind: Mentornity is free for up to 10 users with every feature switched on, which suits the pilot stage. You can bulk-import participants from Excel or publish application forms, match with a rule-based algorithm whose weights you can see (mentor matching software), let mentees book mentors’ time slots with automatic video links and calendar sync, send targeted reminders, and export reports as CSV, Excel or PDF. The interface runs in English, Turkish, Spanish, Italian, Portuguese and Dutch. Pricing is published per country. Create a free program and run your next pilot on it.