Cannabis Grow Guide

    Grow-Buddy AI vs MasterGrowbot AI: buy the app that keeps the whole grow in one place

    Published October 30, 2026 · Updated November 10, 2026

    Buy MasterGrowbot AI if you want one app to hold the plant photo, the written report, the follow-up task and the strain reference, on iPhone or Android. Grow-Buddy AI fits only when the lowest monthly charge is the whole decision and you never need video analysis, a strain library or a task list tied to a saved report. Those are different purchases, and the annual prices are closer than the monthly prices suggest.

    MasterGrowbot AI is the broader paid product. It bundles photo-based plant-health reports with next checks, a journal with notes and saved reports, daily care tasks, a 300-profile strain library on Pro and 600 on Premium, and short-video analysis on iPhone Premium. Grow-Buddy AI is the cheaper entry point: its listing describes a free tier with diagnosis, chat, journal and calendar, and a Premium plan at $2.99 per month or $24.99 per year.

    MasterGrowbot publishes this comparison and develops MasterGrowbot AI, so weigh the framing as you read. Store facts were checked November 1, 2026. This is a software and buying comparison, not an accuracy test.

    Skip the guesswork

    Keep your plant photos, notes, and daily tasks in one app.

    The short answer

    Buy MasterGrowbot Pro annual if you want the full working loop: photo report, saved journal entry, follow-up tasks and a strain library, with one subscription on iPhone or Android. It is $99.99 per year on iPhone and $59.99 per year on Android.

    Buy MasterGrowbot Premium annual if you are on iPhone and you will record short plant videos or want the 600-profile strain library. It is $199 per year.

    Grow-Buddy AI fits a narrower job: a low-cost diagnosis and logbook when you do not need video analysis, a strain reference or tasks attached to a saved report. Its free tier is the reason to look at it, and its Premium plan is the cheapest paid entry in this comparison.

    Start with the 3-day Pro trial on the App Store or the Android Pro plan on Google Play and test the full workflow on your own plants.

    What one MasterGrowbot subscription replaces

    Job on your listHow MasterGrowbot AI handles it
    Check a plant from a photoPhoto-based report with visible signs and the next checks to make
    Keep the resultJournal entry with your own notes and a saved report
    Remember what to do nextDaily care tasks built around the plant you checked
    Look up strain context300 strain profiles on Pro, 600 on Premium, with AI strain guidance
    Show leaves, stems and the roomShort-video analysis on iPhone Premium
    Use one system on either phoneThe same core workflow on iOS and Android

    The value is not a single scan. It is that the scan, the note, the task and the strain reference stay in the same record, so the next check starts where the last one ended. That is the part a free diagnosis tool does not replace.

    Open MasterGrowbot AI on the App Store

    The annual price gap is smaller than the monthly gap

    Grow-Buddy AI lists Premium at $2.99 per month or $24.99 per year. Its App Store description puts Professional at $8.99 per month with 30 days free, while the purchase list on the same page shows $7.99 per month or $79.99 per year. Ask the purchase screen which figure applies before you confirm.

    MasterGrowbot AI lists iPhone Pro at $7.99 per week, $29.99 per month or $99.99 per year, iPhone Premium at $12.99 per week, $49.99 per month or $199 per year, and Android Pro at $6.99 per week or $59.99 per year.

    On the annual plans, $20 separates Grow-Buddy Professional at $79.99 from MasterGrowbot iPhone Pro at $99.99. That is about 5 cents a day, and in this comparison it buys video analysis on iPhone, 300 strain profiles, task reminders and saved reports inside the same app. Android Pro at $59.99 per year is the lowest annual price among the paid plans here, and it includes the same photo, journal and task workflow.

    Weekly billing is the expensive route: $7.99 per week is $415.48 over 52 weeks, against $99.99 for a year of iPhone Pro. Android weekly at $6.99 is $363.48 against $59.99 annual. Choose annual unless you specifically want to cancel within weeks.

    Read the full Pro vs Premium plan breakdown before you pick a tier.

    What Grow-Buddy AI does well

    Grow-Buddy AI is a credible low-cost option. Its listing describes a free tier that already includes plant management, AI diagnoses, AI chat, the journal and the care calendar. It adds weather alerts aimed at outdoor grows, which MasterGrowbot AI does not describe. Its listing also states that data is stored locally on the device with PIN and Face ID protection, which appeals to growers who want the record kept on the phone.

    Those are real advantages for the right buyer. They are also narrow. The listing reviewed does not describe video analysis or a strain library, and it does not describe tasks attached to a saved report. The app is newer and has a much smaller review base than the established tools, with 8 US ratings at 4.4 stars when checked.

    A free diagnosis and a simple logbook are genuine draws if that is all you need. If you want the diagnosis to become a record you can act on next week, the MasterGrowbot workflow is the fuller purchase.

    Why a free tier is not the same as a working plan

    A free tier is a marketing surface, and free-tier definitions change. The features you rely on today can move behind a subscription later. That is not a criticism of Grow-Buddy specifically; it is how app businesses work.

    MasterGrowbot AI takes the opposite approach. Photo analysis and journal tools require Pro, so the free download is a look at the interface rather than a free diagnosis. The 3-day Pro trial for eligible new subscribers is how you test the real workflow before paying.

    That structure is easier to plan around. You know what the paid plan includes, you know the annual price, and you know the trial window. A subscription you can evaluate end to end is worth more than a free tier whose limits can move.

    Start the 3-day Pro trial

    Privacy and where your records live

    Plant photos and grow notes are personal records. Grow-Buddy AI's listing claims local storage with PIN and Face ID, which is a strong default for a phone-only record. Treat that as a developer statement and test it: add a record, close the app, reopen it, and confirm you can still find and delete it.

    MasterGrowbot AI's listing describes saved reports and journal entries with sharing through apps you choose, without a local-only storage claim. If local-only storage is a hard requirement, read each privacy policy before you upload photos and decide which model fits you.

    Either way, ask two questions before you commit a season of notes: can I export my record, and what happens to it if I cancel? Our journal app checklist covers the export, deletion and access tests worth running in the first week.

    Which app fits your phone

    iPhone. MasterGrowbot AI sells Pro and Premium. Pro covers photo reports, the journal, tasks and 300 strain profiles. Premium adds short-video analysis and 600 profiles. Both are available as annual plans at $99.99 and $199.

    Android. MasterGrowbot AI sells Pro at $6.99 per week or $59.99 per year, and no Premium tier. Video analysis is not sold on Android at any price today, so an Android buyer should not pay for a feature the store does not offer.

    Grow-Buddy AI. The app has an iOS listing and a Google Play listing under the package com.growexpert.growbuddy, which matches the iOS bundle identifier. Confirm the developer and the current offer on each store before subscribing, because several unrelated products use GrowBuddy-style names.

    If you switch phones, check that the workflow you rely on exists on the other platform before you commit a year. That single check prevents most subscription regrets.

    Start with the full workflow

    The fastest way to decide is to run one real plant through both jobs: a photo check and a saved follow-up. MasterGrowbot AI is built so that second step exists. Grow-Buddy AI is built so the first step is free.

    Download MasterGrowbot AI for iPhone or get it on Google Play. Paid features require a subscription, and the 3-day trial applies to eligible new Pro subscribers only.

    If you are still choosing a category, start with the AI plant diagnosis app guide and the best AI cannabis growing apps overview. For head-to-head decisions, see GrowDoc vs MasterGrowbot AI, GrowDiaries vs MasterGrowbot AI and HiGrade vs MasterGrowbot AI.

    Frequently asked questions

    Which app should I buy? Buy MasterGrowbot AI if you want photo reports, saved journal entries, tasks and a strain library in one paid app. Grow-Buddy AI fits only when the lowest monthly charge matters more than video analysis, strain profiles and report-linked tasks.

    Which app is cheaper? Grow-Buddy Premium is cheaper at $2.99 per month or $24.99 per year. On the annual professional tiers the gap narrows to $20: $79.99 for Grow-Buddy Professional against $99.99 for MasterGrowbot iPhone Pro, with video analysis, 300 strain profiles and tasks included in the MasterGrowbot price.

    Does MasterGrowbot Premium include the Pro trial? No. The three-day trial applies to eligible new Pro subscribers, and Premium does not include it. Confirm the offer shown to your account.

    Do iPhone and Android cost the same? No. iPhone Pro is $99.99 per year and Android Pro is $59.99 per year. Android has no Premium tier, so video analysis is an iPhone purchase.

    Which app diagnoses more accurately? We cannot say. Both listings describe AI-assisted photo diagnosis, the descriptions are developer-supplied, and we did not run a comparative accuracy test. Choose on workflow and recordkeeping, not on an unverified accuracy claim.

    Can I use both apps? Yes. Some growers keep a free diagnosis app for quick checks and MasterGrowbot for the saved record and tasks. Running two paid subscriptions for the same job usually costs more than it returns.

    Is Grow-Buddy AI the same as a GrowBuddy nutrient calculator? No. Grow-Buddy AI is a mobile diagnosis, chat and journal app published by HANS Brainfood GmbH. Other products use similar names, so check the publisher before subscribing.

    Download MasterGrowbot AI: Free 3-Day Trial

    Explore MasterGrowbot AI for plant photos, journal notes, and daily tasks. Check your app store for current trial eligibility and subscription terms.

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