Learning and careers decision
InstaGroups
A technical user can build a useful, self-hosted team generator and tournament manager, but reproducing the full paid product (mobile apps, polished collaboration, scale-tested UX and support) is a larger effort and better served by continuing to pay.
Visit website↗Built by mrrobbo, who ships 4 products in this index
Not priced
No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.
$100one-off60 h to build
$0/mo6 h/mo upkeep
No published price to break even against.
No open-source build does this yet
Nothing published replaces this one, so a replacement starts from an empty file. Here is what it would have to cover.
What a replacement has to do
- Import a class roster, assign attributes (gender, ability, custom), run a balancing algorithm to produce teams, optionally create tournament brackets and record scores.
What it still won’t have
- Polished native iOS app and App Store distribution
- Refined UX polish and accessibility work
- Built-in analytics/dashboard polish and visualizations
- Customer support, onboarding flows, and billing/subscription management
- Scale-tested collaborative workspaces with real-time sync and conflict resolution
What remains hard
- Product polish and ongoing maintenance
First-year cost
No published price
InstaGroups does not publish a price we could read, so there is nothing to compare against. What building costs is below.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a single-tenant web app (Node.js + Express, Postgres, React) that replicates InstaGroups' core flow: allow CSV/manual roster import, store students with attributes, implement a configurable balancing algorithm (gender, ability, custom weights) that outputs teams, generate round-robin and knockout brackets, record scores and compute standings, and expose a simple sharing/invite link for a workspace. Out of scope: native iOS app, payment/billing, advanced analytics visualizations, real-time conflict resolution. Include input validation, error handling, unit tests for the balancing and bracket algorithms, and deployment scripts for a small cloud instance (e.g., DigitalOcean or AWS t3.small).
How we checked
How the score was reached
- Partly verdict base52
- Evidence score52
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 1
Every page the run actually retrieved.
- official productInstaGroups - Balanced Teams in Seconds
Integrity checks
What held up, and what did not.
