Teers vs Grassy — Comparing two social golf course ranking apps

If you've stumbled onto Grassy and Teers in the same week, you've probably noticed they're pitching a similar idea: a social app for ranking the golf courses you've played, framed around personal taste rather than star ratings.

That's a real and growing category. Both apps lean into the "Letterboxd of golf" analogy. Both reject in-round GPS tracking. Both believe what's missing from golf isn't another scorecard, it's a better way to remember and share the courses you actually care about.

Here's the honest comparison.

Quick comparison

| | Teers | Grassy | |---|---|---| | Pricing | Free | Free download, $2.99/week · $34.99/year · $199 lifetime for Grassy Pro | | Ranking mechanic | Tier-based (Elite/Great/Alright/Bad) with re-rank flow | Personal ranked list | | Friend matching | Phone contact match (hashed on-device) | Manual follow | | Import existing rounds | Yes — 18 Birdies CSV/photo OCR | No | | Predicted-score recs | Yes — based on your taste + friend rankings | No | | Shareable image cards | Yes — every ranking generates a card for iMessage / IG | Photos and posts, no shareable card | | Course database | US-focused with global API fallback | Worldwide, including simulators | | Web profiles | Coming | Yes — course pages are indexable on web | | Tee-time invites | No (booking links on courses) | Yes — OpenTee integration | | Live PGA leaderboards | No | Yes | | iOS version required | iOS 15+ | iOS 18+ | | Platforms | iOS | iOS | | Launched | 2026 | 2025 |

Where Grassy is stronger

Worldwide course database including simulators. If you play in indoor simulator leagues or you golf abroad regularly, Grassy's database picks up courses Teers' US-focused database may not have. The simulator inclusion is genuinely smart — that's a real and growing slice of how people play.

Web-indexable course pages. Grassy has public course pages at grassy.golf/courses/... that Google can crawl. That's good long-term SEO and means a Grassy course page can show up when someone searches for a specific course on the web. Teers' web profiles are on the roadmap; Grassy ships them today.

Tee-time invites via OpenTee. If you want to send a "let's play this Saturday" invite directly from a course page, Grassy has that baked in. Teers links out to booking sites for individual courses but doesn't have native tee-time invites.

Live PGA leaderboards. If you like to flip into a leaderboard during the Masters or the US Open, Grassy has that inside the app. Teers doesn't.

Polished native iOS experience. Grassy requires iOS 18+, which means they're using the newest Apple frameworks. The app reflects that — it feels native and clean.

Where Teers is stronger

Free forever. Grassy charges for the full experience — $2.99 per week, $34.99 per year, or $199 lifetime for Grassy Pro. Teers is completely free with no premium tier and no paywalled features. For two apps with essentially the same core promise (log, rank, share courses), price is a real consideration.

18 Birdies import. If you've been tracking rounds in 18 Birdies for years, Teers can import your course history via CSV or photo OCR. You arrive with a populated ranked list instead of starting from zero. Grassy requires you to add every course manually — which for a long-time 18 Birdies user is the difference between "I'll try this sometime" and "I have a real profile in 60 seconds."

Phone contact match for friends. Teers hashes your contacts on-device and shows you which people you already know are on the app. Your golf group chat populates automatically the moment you finish onboarding. Grassy's social graph requires manual following — which is a problem because a taste-based app is only as good as the people whose taste you can compare against. Bootstrapping that graph instantly matters.

Predicted-score recommendations. Teers learns your taste from your rankings and your friends' rankings, then predicts how much you'd like courses you haven't played — a personalized "you'll probably love this" signal. Grassy's discovery is purely follow-graph driven (you see what people you follow ranked). Teers' approach scales better as your network grows.

Tier-based ranking. Teers groups courses into Elite, Great, Alright, and Bad — the way golfers actually talk. Bumping a course up at the top of Great auto-promotes it to Elite. Most golfers can't ordinally rank 47 courses but can confidently bucket them, which makes the tier model more honest at scale.

Shareable image cards. Every ranking in Teers generates a beautiful card image that drops cleanly into iMessage and Instagram. The card becomes the marketing — your take on Pebble travels into your group chat as a visual, not just a link.

iOS 15+ support. Teers runs on older iPhones (iOS 15 and up). Grassy requires iOS 18, which excludes anyone on a slightly older device.

Which one should you use?

Use Grassy if: You play simulator leagues, you golf abroad regularly, you want native tee-time invites and PGA leaderboards inside the app, and the Grassy Pro pricing doesn't bother you.

Use Teers if: You want it free, you want your friends imported from contacts automatically, you're coming from 18 Birdies and want your history to come with you, you care about the AI-powered "you'll like this" recommendations, and you want every ranking to be shareable as a beautiful image card.

There's room for both apps in this category — it's brand new and neither has won. If you're a serious golf-app person, try both and see which one you keep opening.

Try Teers

Download Teers on the App Store — it's free forever, takes 30 seconds to set up, and your phone contacts who're already on Teers show up the moment you finish onboarding.