Comparison

FertAdvisor vs How to Win Friends

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

Head to head
About

FertAdvisor

This app helps homeowners and turfgrass professionals calculate fertilizer needs for lawns. It provides tools for spreader calibration, label interpretation, and application guidance through animations and videos.

Highlights
  • Fertilizer amount calculation
  • Spreader calibration
  • Fertilizer label reading
  • Application technique guidance
  • Soil sampling videos
  • Area calculation
Features
Read full description

FertAdvisor assists homeowners and turfgrass practitioners in calculating the amount of lawn fertilizer needed, drop and rotary spreader calibration, and reading a fertilizer label to properly apply fertilizer to turfgrass areas. Built in calculators help you determine how much fertilizer will be needed to properly fertilize turfgrass areas, streamline calibration calculations, calculate the amount of nitrogen, phosphate and potash that will be applied to their area based on the fertilizer selected. Animations and videos guide turfgrass enthusiasts on how to take a soil sample, properly apply fertilizer using drop and rotary spreaders, calibrate a fertilizer spreader, and calculate lawn surface area. Tips on application techniques, accurate calibration, proper fertilizer timing, nitrogen source selection combine to provide users a comprehensive tool that will help ensure accurate applications and reduce misapplications that can potentially damage turfgrass, waste fertilizer and/or pose environmental risk.

About

How to Win Friends

Features
Read full description

HOW TO WIN FRIENDS Build stronger, more meaningful relationships with timeless ideas inspired by Dale Carnegie’s How to Win Friends and Influence People. How to Win Friends turns 30 well-known relationship principles into a practical daily habit. Thoughtful reminders help you revisit ideas such as showing genuine interest in others, listening attentively, and making people feel appreciated—at moments that fit your schedule. WHY HOW TO WIN FRIENDS? Reading a great principle once is easy. Remembering to apply it in everyday conversations is harder. How to Win Friends keeps these ideas within reach through customizable reminders, a complete principle library, and a Home Screen widget. Whether you want to communicate better at work, strengthen personal relationships, or become a more thoughtful listener, the app helps you practice one small principle at a time. KEY FEATURES • Thoughtful Reminders Receive a relationship principle at times that fit your day. Choose daily, weekly, or monthly rotation. • Your Own Schedule Select a time window and notification interval that work for you. • Home Screen Widget Keep the current principle visible throughout the day with the premium Home Screen widget. • Principle Library Explore 10 principles for free. A single one-time purchase unlocks lifetime access to the complete collection of 30. • Personalize Your Practice Choose which principles to include and whether they appear sequentially or in a random order. • Notification Sounds Use the default sound or silence reminders for free. The lifetime unlock includes additional Gentle, Bright, and Warm sounds. • Available in 16 Languages Read the principles and use the app in English, Arabic, Bengali, Simplified Chinese, Dutch, French, German, Hindi, Italian, Japanese, Korean, Portuguese, Russian, Spanish, Traditional Chinese, and Turkish. • Private by Design No account, no sign-up, and no advertisements. Your principles, preferences, and notification schedule stay on your device. WHO IS IT FOR? • Professionals who want to communicate more effectively • People looking to build deeper, more authentic relationships • Anyone who wants to become a better listener • Readers who want to put Dale Carnegie’s ideas into practice • Anyone who believes meaningful relationships grow through small, consistent actions BETTER RELATIONSHIPS, ONE PRINCIPLE AT A TIME How to Win Friends isn’t about quick tricks or manipulation. It’s about becoming more attentive, appreciative, and genuinely interested in the people around you. Download How to Win Friends and make better relationship habits part of your day.

Screenshots

FertAdvisor4 screens
How to Win Friends4 screens

Verdict

The call

The clearest difference is update cadence: How to Win Friends at every 2 months against FertAdvisor's every 10 months. FertAdvisor's advantage is iOS requirement (9.0 vs 17.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

FertAdvisor ships an update every 10 months, How to Win Friends every 2 months. The most recent releases landed on October 12, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
FertAdvisor versus How to Win Friends: the parameters behind the verdict, then further details
ParameterFertAdvisorHow to Win Friends
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size65 MB6 MB
Age rating17+4+
DeveloperUniversity of ConnecticutJip van der Heide

In-app purchases

None

FertAdvisor

No in-app purchases

None

How to Win Friends

No in-app purchases

Questions

Is FertAdvisor free?
FertAdvisor is free to download, with no in-app purchases.
Is How to Win Friends free?
How to Win Friends is free to download, with no in-app purchases.
Do FertAdvisor or How to Win Friends have ads?
Neither FertAdvisor nor How to Win Friends shows ads.
Which is updated more often, FertAdvisor or How to Win Friends?
FertAdvisor ships an update every 10 months, and How to Win Friends every 2 months. Most recently, FertAdvisor was updated on October 12, 2026 and How to Win Friends on October 30, 2026.

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