Kaff vs passNote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kaff
Discover, rate, and share your coffee experiences with a community of fellow enthusiasts. Find new coffee shops, leave reviews with photos, and connect with friends to see their favorite spots.
- Discover nearby coffee shops
- Rate shops with text and photos
- Post reviews without a rating
- Share community posts
- Follow friends and coffee lovers
- Explore a coffee-focused map
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Kaff is like Goodreads, but for coffee shops. Log the spots you visit, rate them, and say what you really thought. Follow friends and fellow coffee people, and your feed turns into a running list of where everyone’s drinking and what’s actually worth the trip. Coffee, matcha & everything else counts. Rate the cortado, the ceremonial matcha, the weird lavender latte. If it’s in a cup, it belongs here. WHAT YOU CAN DO Rate and review independent coffee shops with honest takes Follow friends and see their latest finds in your feed Build your coffee passport, a record of every shop you’ve been to Browse the map to see what’s near you Add a shop that’s missing so it’s here for everyone WHY KAFF Kaff started as a group chat called Latte Raters, where friends swapped coffee shop finds. Then one of them asked, “why don’t you just build it?” So we did. It’s all about independent shops, so you won’t find a large chain. The ratings come from real people with real opinions. Made in SoCal. Pull up a seat.
passNote
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Exchange diaries are a traditional form of communication in Japan, where people share their daily experiences and thoughts through a notebook. Even today, they remain popular among young people, offering a slower and more meaningful alternative to social media and instant messaging. With this app, you can easily experience the charm of exchange diaries on your smartphone. Share your daily life, hobbies, and thoughts while getting to know someone little by little. Unlike short messages, exchange diaries help build deeper connections. By taking time to write and respond, you can learn about each other's values and perspectives and develop lasting relationships. You can also connect with people from around the world. Discover real daily life, culture, school, work, and traditions that cannot be fully understood through travel or social media alone. Exchange diaries are also a great way to learn languages. Built-in translation helps you communicate with confidence while naturally learning real expressions used by native speakers. Why not start a special exchange diary with someone, somewhere in the world?
Screenshots
Verdict
The clearest difference is in-app purchases: Kaff at none against passNote's 1. Kaff also leads on iOS requirement (15.1 vs 18.0). passNote's advantage is ads (none vs shown) and update cadence (every 5 days vs monthly). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. passNote sells 1 in-app purchase, starting at $2.99 per month. Kaff asks for nothing beyond the download.
Kaff ships an update monthly, passNote every 5 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Kaff | passNote |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (24 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Monthly | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 41 MB | 80 MB |
| Age rating | 4+ | 17+ |
| Developer | Kaff | Ryota Izumi |
In-app purchases
Kaff
No in-app purchases
passNote
- Premium Membership$2.991 Month









