Comparison

Rosyn vs CannaTrak

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

Head to head
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/

About

CannaTrak

Features
Read full description

Your Cannabis Journal CannaTrak is your cannabis journal — a single place to track everything about your licensed cannabis experience, built for speed and designed around your data. Built for speed. CannaTrak makes journaling easy. Scan a label or COA at the point of purchase, log usage with a single tap, and record how you were feeling and what you were doing in seconds. See your analysis right away — CannaTrak is designed to turn your entries into insight, fast. Your personal catalog. Every dispensary purchase becomes part of your journal — organized, searchable, and easy to look back on. Mark favorites, and keep your whole current stash ready for one-tap logging. Quick entries, every time. Took a hit from the vape pen? Log it in seconds and see your THC intake alongside how it made you feel and what you were doing at the time. Ate a gummy? Record it — mood, activity, and all — with a single click. Understand what you like. Sativa and indica labels don't actually appear on a COA — but terpene data does, and it's a much better predictor of what works for you. The more you journal, the sharper your instincts get. The full picture. Use CannaTrak to track usage, log how you felt or what you were doing, record abstinence or a craving, or simply keep tabs on your stash, dispensaries, and spending. CannaTrak is about the data — your journal, your history, your patterns. Your data, your call. Store your journal locally and delete it instantly, or sync across your devices — you decide. CannaTrak never tracks usage data back to you. Give it a try, and start keeping your cannabis journal.

Screenshots

Rosyn4 screens
CannaTrak4 screens

Verdict

The call

The clearest difference is in-app purchases: CannaTrak at none against Rosyn's 2. CannaTrak also leads on update cadence (every 3 days vs fortnightly) and iOS requirement (15.0 vs 18.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Rosyn ships an update fortnightly, CannaTrak every 3 days. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

Scorecard3 real differences · 7 level
Rosyn versus CannaTrak: the parameters behind the verdict, then further details
ParameterRosynCannaTrak
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.0 — better
Further details — not scored
Size37 MB22 MB
Age rating17+17+
DeveloperMike Van AmburgMichael J Katz

In-app purchases

2 purchases

Rosyn

Subscriptions2
  • Rosyn Premium Monthly$9.991 Month
  • Rosyn Premium Yearly$99.991 Year
None

CannaTrak

No in-app purchases

Questions

Is Rosyn free?
Rosyn is free to download, with in-app purchases available.
Is CannaTrak free?
CannaTrak is free to download, with no in-app purchases.
Do Rosyn or CannaTrak have ads?
Neither Rosyn nor CannaTrak shows ads.
Which is updated more often, Rosyn or CannaTrak?
Rosyn ships an update fortnightly, and CannaTrak every 3 days. Most recently, Rosyn was updated on October 9, 2026 and CannaTrak on October 3, 2026.

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