Comparison

GrowDoc vs Cannabis Journal

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

Head to head
About

GrowDoc

Instantly diagnose cannabis plant issues with a single photo. Get science-backed solutions to improve THC, yield, and terpenes. Access expert guides and a male/female scanner for optimal growth.

Highlights
  • Photo diagnosis of cannabis plant problems
  • Science-backed solutions for plant health
  • Infographics, videos, and accurate images
  • Male/female plant scanner
  • Expert growing guides and blog
  • Covers various growing methods and scales
Features
Read full description

GrowDoc is your pocket-sized cannabis plant doctor; diagnose your cannabis plant problems faster than ever! An undiagnosed cannabis plant problem can drastically lower THC, yield, and terpenes! Never let another issue ruin your plants and flowers again. Cannabis plant problems that destroy plants and flower: - Pests - Nutrient Deficiencies/Toxicities - pH Imbalances - Nutrient Lock - Over/ Under Watering - Pathogens / Viruses - Light / Spray burn - and more With just one photo of your sick cannabis plant, our cutting-edge machine learning AI, combined with years of cannabis plant research, diagnoses and offers you solutions that work, making it the must-have app for new and experienced growers alike. That’s not all… Grow Better with these key features: - Photo diagnosis of your unhealthy cannabis plants - Heal your sick plant with science-backed solutions - Learn more about cannabis plant problems with helpful infographics, videos, and 100% accurate images from our many research projects - Make sure you are growing what you want with our male /female scanner - Get expert information and exclusive growing guides with the Growers Blog It doesn't matter whether you're growing out of passion, medicinally, hydroponically, organic, soil, large or small scale grow, indoor, or outdoor; GrowDoc helps you grow better because we are growers first and understand all of the struggles we growers face. Diagnose, Solve, and Grow with GrowDoc! AGREEMENTS: PRIVACY POLICY: https://growdoc.net/home/privacy_policy TERMS AND CONDITIONS: https://growdoc.net/home/terms_conditions OUR SOCIALS: FACEBOOK: https://www.facebook.com/grow.doc.395 INSTAGRAM: https://www.instagram.com/growdocapp/ PINTEREST: https://www.pinterest.ca/GrowDocApp/ LINKEDIN: https://www.linkedin.com/company/growdoc/ LINKTREE: https://linktr.ee/growdoc GrowDoc is registered in Canada and intended for the legal Cannabis markets only

About

Cannabis Journal

Track your cannabis experiences, logging strains, products, and their effects. Discover ideal activities for different strains and understand how they impact medical conditions. Approach dispensaries with confidence by knowing what works best for you.

Highlights
  • Log cannabis strains and products
  • Record effects and activities
  • Track impact on medical conditions
  • Rate strains by price, THC, aroma, flavor
  • Gain dispensary confidence
Features
Read full description

The Cannabis Journal is the best way to get the most out of your cannabis experience. Log the effects of specific cannabis strains and products. Keep a record of the best activities for those strains whether it's hiking, music-making or sleep. Know what products can help or hurt sensitive medical conditions and health problems. View your journal's highest rated and lowest rated strains by price, THC percentage, aroma, flavors and more. Approach the dispensary with confidence by understanding what genetics and strains work for you and which ones do not. Don't be uncertain about your experience the next time you purchase or consume cannabis. Get the strain journal app and let cannabis enhance your life with confidence. Subscription plans: Annual: $12.99 Payments and Renewal: Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase No cancellation of the current subscription is allowed during the active period. Terms of use: https://cannabisjournal.app/terms-of-use/ Privacy policy: https://cannabisjournal.app/privacy-policy/

Screenshots

GrowDoc4 screens
Cannabis Journal4 screens

Verdict

The call

The clearest difference is rating: Cannabis Journal at 3.4 against GrowDoc's 1.6. Cannabis Journal also leads on update cadence (every 5 days vs every 5 weeks) and review sentiment (43% vs 24%). GrowDoc's advantage is monetization model (free with in-app purchases vs subscription). On price, ratings volume, ads and in-app purchases 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. GrowDoc sells 2 in-app purchases, starting at $49.99 per year and Cannabis Journal sells 1 in-app purchase, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cannabis Journal holds the better App Store score, 3.4 against 1.6. Both are backed by a comparable volume of ratings — 12 and 28 respectively. Written reviews point the same way: 24% of GrowDoc's written reviews are positive against 43% of Cannabis Journal's.

UpkeepUpdate frequency

GrowDoc ships an update every 5 weeks, Cannabis Journal every 5 days. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
GrowDoc versus Cannabis Journal: the parameters behind the verdict, then further details
ParameterGrowDocCannabis Journal
PriceFreeFree
Rating1.6 (12 ratings)3.4 (28 ratings) — better
Positive reviews24.2% of reviews43.5% of reviews — better
Number of ratings1228 — better
Update frequencyEvery 5 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size88 MB41 MB
Age rating17+17+
DeveloperGrowDoc App Inc.Passion Project Productions, LLC

Customer experience

GrowDoc

All ratings12 ratings
Positive8.3%
Neutral8.3%
Negative83.3%
Written reviews33 reviews
Positive24.2%
Neutral12.1%
Negative63.6%

Cannabis Journal

All ratings19 ratings
Positive84.2%
Neutral0.0%
Negative15.8%
Written reviews23 reviews
Positive43.5%
Neutral0.0%
Negative56.5%

In-app purchases

2 purchases

GrowDoc

Subscriptions1
  • Premium Yearly Membership$49.991 Year
One-time1
  • 1 Month Access$4.99
1 purchases

Cannabis Journal

Subscriptions1
  • Cannabis Journal7 Days trial$9.991 Year

Questions

Is GrowDoc free?
GrowDoc is free to download, with in-app purchases available.
Is Cannabis Journal free?
Cannabis Journal is free to download, with in-app purchases available.
Which has better reviews, GrowDoc or Cannabis Journal?
Cannabis Journal is rated higher. GrowDoc averages 1.6 out of 5 from 12 ratings, while Cannabis Journal averages 3.4 from 28 ratings.
Do GrowDoc or Cannabis Journal have ads?
Neither GrowDoc nor Cannabis Journal shows ads.
Which is updated more often, GrowDoc or Cannabis Journal?
GrowDoc ships an update every 5 weeks, and Cannabis Journal every 5 days. Most recently, GrowDoc was updated on November 7, 2026 and Cannabis Journal on November 4, 2026.

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