My Kelp vs PoolStack
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
My Kelp
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My Kelp is a tool for ocean farmers enrolled in GreenWaveβs Kelp Climate Fund to track the growth, quality, and climate benefits of kelp crops. The app helps farmers keep better records of their growing season to make informed farm decisions and communicate harvest quality to buyers. My Kelp Features -Guided sampling protocol to track kelp biomass, biofouling, and images per species on your farm -Reports: Based on kelp biomass tracking, My Kelp calculates the estimated carbon and nitrogen removal of your farm so you can start to understand your farmβs climate impact. -Farm log: record consistent farm data and refer back to them in years to come. Conduct year-over-year comparisons and make informed decisions to improve farming techniques for future seasons. -Export and share: All the data in My Kelp is exportable and shareable. You own and control your data. -Offline sync: On the water or at home, My Kelp works with or without an internet connection. My Kelp is by GreenWave, a nonprofit dedicated to training and supporting ocean farmers in the era of climate change, working with coastal communities around the world to create a blue economy - built and led by farmers.
PoolStack
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PoolStack is the field companion for pool service companies. Techs get their day in one list, admins see every route live, and invoices go out before the truck leaves the driveway. YOUR DAY, READY EVERY MORNING Open the app to today's route: every stop, time window, and status in one list, or on the map. Know what's done, what's next, and what's left. EVERY VISIT, DONE RIGHT Each stop has its service checklist, access notes, and photo requirements. Gate codes, dog warnings, and arrival windows are right where you need them. Complete required items, capture before and after photos, and move on. WATER CHEMISTRY IN SECONDS Log readings poolside: free chlorine, pH, TA, and more. PoolStack checks every reading against your target ranges, suggests the dose to bring the water back, and records every chemical applied with the visit. INVOICING FROM THE FIELD Turn completed work into an invoice with line items, subtotal, and tax. Send it on the spot and track outstanding, overdue, and paid from your phone. BUILT FOR TEAMS Admins see live progress across every tech and route, manage customers and properties, and keep the whole operation moving. Techs see exactly what they need and nothing they don't. WORKS WHERE YOU WORK Backyards do not always have signal. PoolStack keeps your day available and syncs your changes when you are back online. PoolStack is designed for pool and spa service companies of any size, from a solo route to a full fleet. Get your evenings back.
Screenshots
Verdict
The clearest difference is update cadence: PoolStack at every 9 days against My Kelp's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
My Kelp ships an update every 4 weeks, PoolStack every 9 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | My Kelp | PoolStack |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Every 9 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod β better | iPhone |
| Requires iOS | 15.1 β better | 16.4 |
| Further details β not scored | ||
| Size | 53 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | GreenWave Organization Corp. | Pooly LLC |
In-app purchases
My Kelp
No in-app purchases
PoolStack
No in-app purchases
Questions
Is My Kelp free?
Is PoolStack free?
Do My Kelp or PoolStack have ads?
Which is updated more often, My Kelp or PoolStack?
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