Comparison

Cannoisseur vs Rosyn

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Cannoisseur

This app helps cannabis enthusiasts track, rate, and journal their experiences with various products. It allows users to add photos, categorize strains, note effects and flavors, and record purchase locations and batch information for a personalized cannabis journey.

Highlights
  • Photo journal entries
  • Personal strain library
  • Experience rating system
  • Product categorization
  • Detailed effect and flavor notes
  • Purchase location tracking
  • Cannabinoid and terpene logging
Read full description

Remember what worked, and what didn't. Cannoisseur is a private cannabis journal for patients and enthusiasts. Log every flower, vape, concentrate, edible, topical and tincture you try, and build a personal record of how each one made you feel. Next time you shop, you'll know what to look for. LOG EVERYTHING THAT MATTERS - Product name, type and dominance (indica, sativa or hybrid) - A 1–5 leaf rating and your own notes - Up to four photos of the product or label - Voice notes, transcribed on your device so you can read and search them later - What it helped with, from pain and sleep to focus and stress - Side effects such as dry mouth, anxiety or couch-lock - Where you bought it, with a map - Cannabinoid and terpene percentages from the lab label, including THCA, CBD, CBN, Total THC, myrcene, limonene and more Missing a terpene, symptom or side effect? Add your own. FIND ANY ENTRY IN SECONDS Search by strain, dispensary, symptom, or anything you said in a voice note. CANNOISSEUR PRO Turn your journal into personal research: - Shopping guide: pick a symptom and see the cannabinoids, terpenes, strains and dominance that worked best for you, with typical percentages to look for on the label. - Side-effect warnings: while you log, get a heads-up when a product or its compounds have been linked to side effects in your past entries. - What works for you: find the compounds that lift your ratings above your usual, and the strains and compounds behind your side effects. - Share a report: export a PDF summary of your journal to bring to your doctor or budtender. - Trends and favorites: your monthly rating trend and your best-rated dispensaries. Insights compare each result to your own average, and small samples count for less, so one great night can't top the list. PRIVATE BY DESIGN Your journal syncs through your own iCloud account. There are no ads and no sign-up, and voice transcription happens on your device. MADE FOR EVERY SCREEN Built for iPhone, iPad and iPhone Duo, with VoiceOver and Dynamic Type support throughout. BUILT BY ONE PERSON Cannoisseur is made by an independent developer. Pro subscriptions keep the app ad-free and fund new features for patients and enthusiasts.

About

Rosyn

This app helps cannabis users track their usage with intention and awareness. It visualizes tolerance shifts, allows quick logging of consumption methods and effects, and offers gentle suggestions for breaks. Designed for privacy, it keeps all data on the device.

Highlights
  • Private cannabis journaling
  • Tolerance visualization (moon cycle)
  • Quick logging of consumption and effects
  • Gentle suggestions for breaks
  • Data export option
  • On-device data storage
Features
Read full description

Meet Rosyn, a calm and private cannabis companion made for adult cannabis users who want to be more intentional about their use. Rosyn is not here to convince you to start using cannabis, use more, or quit. It is built for adults who already use cannabis and want a better way to understand their habits, learn from their experiences, and make more informed choices. Think of Rosyn as a budtender in your pocket, a personal cannabis journal, and a pattern finder all in one. Ask Rosyn about strains, terpenes, potency, methods, timing, and common effect patterns. Learn what myrcene, limonene, pinene, or caryophyllene may mean, and get plain-language context before your next session. Because cannabis is personal, Rosyn helps you go beyond generic strain descriptions. A strain that feels relaxing for one person may feel heavy, foggy, or distracting for someone else. With Rosyn, you can log what you used, how you used it, when you used it, and how it actually felt. Over time, your logs become a clearer picture of what works for you. You can track flower, vapes, edibles, tinctures, concentrates, topicals, and custom methods, along with potency, amount, mood, timing, effects, notes, and ratings. Rosyn also supports voice logging, so you can quickly describe a session without filling out every detail by hand. Say what happened, and Rosyn helps organize the important parts. As your history grows, Rosyn helps you notice patterns across strains, terpenes, methods, doses, moods, time of day, and effects. You may discover which products fit evenings better, which methods last longer than expected, or which routines are becoming more automatic than intentional. Rosyn can also help you understand tolerance changes over time. Tolerance can shift slowly, and it is easy to miss until cannabis no longer feels the way it used to. Rosyn compares your recent sessions with your own history so you can see when frequency, amount, or effectiveness may be changing. When it looks like you may need space, Rosyn can help you consider a pause, reset, or slower pace. No shame. No scare tactics. No pressure to quit. Just a gentle way to reflect and decide what feels right for you. Rosyn is made for adult cannabis users who want cannabis to stay helpful, intentional, and personal. Whether you use cannabis to unwind, get creative, sleep, manage discomfort, or simply be more present, Rosyn gives you a private place to track, reflect, and learn. Your cannabis history is personal, and Rosyn is designed with that in mind. There are no social feeds, public profiles, or judgmental streaks. Your logs are for you. If you choose, you can export your history for your own records or to share with someone you trust. Rosyn does not replace medical advice, professional care, or your own judgment. It simply helps you understand what you are using, how it feels, and what patterns are forming over time. Ask. Log. Learn. Adjust. Use cannabis with more intention. Download Rosyn and get to know your cannabis routine better. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Cannoisseur4 screens
Rosyn4 screens

Verdict

The call

The clearest difference is in-app purchases: Cannoisseur at none against Rosyn's 2. Rosyn's advantage is ratings volume (6 vs 1) and iOS requirement (18.0 vs 26.6). On price, rating, review sentiment and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Rosyn sells 2 in-app purchases, starting at $9.99 per month. Cannoisseur asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Cannoisseur against 5.0 for Rosyn. That said, the two scores are not equally well evidenced: Rosyn has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Cannoisseur ships an update monthly, Rosyn fortnightly. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Cannoisseur versus Rosyn: the parameters behind the verdict, then further details
ParameterCannoisseurRosyn
PriceFreeFree
Rating5.0 (1 ratings)5.0 (6 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings16 — better
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhoneiPhone, iPad — better
Requires iOS26.618.0 — better
Further details — not scored
Size5 MB37 MB
Age rating17+17+
DeveloperDanielle LewisMike Van Amburg

Customer experience

Cannoisseur

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Rosyn

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Cannoisseur

No in-app purchases

2 purchases

Rosyn

Subscriptions2
  • Rosyn Premium Monthly$9.991 Month
  • Rosyn Premium Yearly$99.991 Year

Questions

Is Cannoisseur free?
Cannoisseur is free to download, with no in-app purchases.
Is Rosyn free?
Rosyn is free to download, with in-app purchases available.
Which has better reviews, Cannoisseur or Rosyn?
Cannoisseur and Rosyn are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.
Do Cannoisseur or Rosyn have ads?
Neither Cannoisseur nor Rosyn shows ads.
Which is updated more often, Cannoisseur or Rosyn?
Cannoisseur ships an update monthly, and Rosyn fortnightly. Most recently, Cannoisseur was updated on October 24, 2026 and Rosyn on October 9, 2026.

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