Comparison

NPK Calculator vs RichChip Beta

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

Head to head
About

NPK Calculator

This app helps optimize fertilizer solutions for plants by calculating the correct ratios of macronutrients and micronutrients. It aims to save money, prevent nutrient imbalances, and improve nutrient uptake for healthier plant growth in hydroponics or soil.

Highlights
  • Optimizes macronutrient and micronutrient ratios
  • Database of fertilizers
  • Nutrition programs from experienced growers
  • Saves money on fertilizer solutions
  • Prevents fertilizer burns and nutrient lock-out
  • Optimizes nutrient uptake
Features
Read full description

Living beings such as plants require a proper balance, especially of nutrients, for optimal growth. Essential nutrients are necessary for basic functions, and trace nutrients for the best health. Nutrient lock-out can occur when the pH is out of balance or when there is too much of a nutrient. Even if overdosing doesn't occur, nutrients can be wasted by adding too much solution per fertilizing cycle. NPK Calculator is an app for optimizing the ratio of macronutrients and micronutrients in your fertilizer solution for use in hydroponics or soil. Our in-app database contains many simple and complex fertilizers in the market. Several nutrition programs by knowledge growers with long-term experience are available in preset tabs. -Save money on fertilizer solution (up to 50%) -Know the ratio of elements available in your solution -Prevent fertilizer burns and nutrient lock-out -Optimize nutrient uptake

About

RichChip Beta

Control and update your RC100 device with this app. Monitor battery, firmware, and settings. Record and play audio, including encrypted files.

Highlights
  • Monitor RC100 device status
  • Update device firmware
  • General and encrypted audio recording
  • Modify recording and control options
  • Play audio files
Features
Read full description

A. This APP is mainly used with RC100 device, which can make users more handy. The main functions include turning on or off various control options, changing usage functions and product updates, etc. B. Key Features v. Know the current status of RC100, including battery power, product item number and device firmware version, or update the product firmware. vi. General recording and encrypted recording audio. vii. Modify recording or control options, such as gain, button and LED settings, etc. viii. Play normal recording audio files or encrypted recording files.

Screenshots

NPK Calculator3 screens
RichChip Beta4 screens

Verdict

The call

The clearest difference is price: RichChip Beta at Free against NPK Calculator's $2.99. RichChip Beta also leads on iOS requirement (13.0 vs 18.5). NPK Calculator's advantage is rating (3.3 vs 1.0) and update cadence (monthly vs every 3 months). On 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

RichChip Beta is free to download; NPK Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NPK Calculator holds the better App Store score, 3.3 against 1.0. That said, the two scores are not equally well evidenced: NPK Calculator has 8 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

NPK Calculator ships an update monthly, RichChip Beta every 3 months. The most recent releases landed on October 18, 2026 and October 1, 2026 respectively.

Scorecard6 real differences · 4 level
NPK Calculator versus RichChip Beta: the parameters behind the verdict, then further details
ParameterNPK CalculatorRichChip Beta
Price$2.99Free — better
Rating3.3 (8 ratings) — better1.0 (1 ratings)
Positive reviews33.3% of reviews—
Number of ratings8 — better1
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.513.0 — better
Further details — not scored
Size3 MB54 MB
Age rating4+4+
DeveloperAnton SimonovMYTEK CORP.

Customer experience

NPK Calculator

All ratings8 ratings
Positive50.0%
Neutral12.5%
Negative37.5%
Written reviews12 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

RichChip Beta

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

NPK Calculator

No in-app purchases

None

RichChip Beta

No in-app purchases

Questions

Is NPK Calculator free?
NPK Calculator costs $2.99, with no in-app purchases.
Is RichChip Beta free?
RichChip Beta is free to download, with no in-app purchases.
Which has better reviews, NPK Calculator or RichChip Beta?
NPK Calculator is rated higher. NPK Calculator averages 3.3 out of 5 from 8 ratings, while RichChip Beta averages 1.0 from 1 ratings.
Do NPK Calculator or RichChip Beta have ads?
Neither NPK Calculator nor RichChip Beta shows ads.
Which is updated more often, NPK Calculator or RichChip Beta?
NPK Calculator ships an update monthly, and RichChip Beta every 3 months. Most recently, NPK Calculator was updated on October 18, 2026 and RichChip Beta on October 1, 2026.

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