Comparison

Formulize vs Promo Buddy

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

Head to head
About

Formulize

Create and manage personalized calculation formulas with this intuitive app. It supports basic arithmetic, custom formulas, and dynamic variables, making complex math accessible for students and professionals alike.

Highlights
  • Custom formula creation and saving
  • Basic arithmetic operations
  • Intuitive user interface
  • Dynamic variable input
  • Operator precedence support
Features
Read full description

Formulize is a user-friendly calculator app designed to help you create and manage custom formulas with ease. Whether you’re a student, professional, or just need a reliable tool for your everyday calculations, Formulize makes complex math simple. Key Features: • Custom Formulas: Easily design and save your own formulas for quick access. • Basic Calculations: Handle fundamental arithmetic operations with support for addition, subtraction, multiplication, and division. • Intuitive Interface: Enjoy a clean, easy-to-use interface that simplifies the process of creating and managing your formulas. • Variable Support: Input variables to make your calculations dynamic and flexible. • Operator Precedence: Ensure accurate results with built-in support for operator precedence.

About

Promo Buddy

Easily calculate discounts on purchases by entering the original price and applying one or two discounts. See your final price and savings instantly in your preferred currency, whether it's your device's default or one chosen for travel. Shop smarter and save time with this fast, lightweight tool.

Highlights
  • Calculate discounts
  • Apply one or two discounts
  • View final price
  • Track savings
  • Select preferred currency
  • Automatic device currency detection
Features
Read full description

What will you actually pay? Promo Buddy calculates the final price after one or two discounts, with optional tax. Check an offer in seconds before you buy. From clearance racks to online sales, skip the mental math. Enter the original price, apply a discount and see your final price and savings at a glance. CALCULATE ANY DISCOUNT Choose a quick 10%, 20%, 30% or 50% discount, or enter your own percentage. Adjust the numbers to check another offer in seconds. STACK TWO DISCOUNTS An extra 20% off an already reduced item? Add a second discount and let Promo Buddy apply the reductions one after the other to calculate your final price and savings. INCLUDE TAX Enter your tax rate to see the final price, discounts and tax included. YOUR CURRENCY, READY TO GO Promo Buddy automatically selects a currency based on your device’s region. Choose another whenever you like and save your favorites for quick access. MADE FOR QUICK PRICE CHECKS A clear layout, handy percentage shortcuts and an easy-to-read result keep the focus on the numbers you need. No account or sign-up required. Add Promo Buddy to Control Center to quickly open the calculator while you shop. REMOVE ADS, ONCE Use Promo Buddy with ads, or remove them with a one-time in-app purchase. No subscription. Check the price. See the savings. Decide if it’s worth it.

Screenshots

Formulize2 screens
Promo Buddy4 screens

Verdict

The call

The clearest difference is rating: Promo Buddy at 5.0 against Formulize's 4.5. Promo Buddy also leads on monetization model (ad-supported vs free with in-app purchases). Formulize's advantage is ads (none vs shown). On price, ratings volume, 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. Formulize sells 1 one-off in-app purchase and Promo Buddy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Promo Buddy holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Scorecard3 real differences · 7 level
Formulize versus Promo Buddy: the parameters behind the verdict, then further details
ParameterFormulizePromo Buddy
PriceFreeFree
Rating4.5 (2 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequency—Fortnightly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.5 — better17.6
Further details — not scored
Size30 MB11 MB
Age rating4+4+
DeveloperMorten GregersenChloe Agostini

Customer experience

Formulize

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Promo Buddy

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Formulize

One-time1
  • Formulize Pro$2.99
1 purchases

Promo Buddy

One-time1
  • Remove Ads$1.99

Questions

Is Formulize free?
Formulize is free to download, with in-app purchases available.
Is Promo Buddy free?
Promo Buddy is free to download, with in-app purchases available.
Which has better reviews, Formulize or Promo Buddy?
Promo Buddy is rated higher. Formulize averages 4.5 out of 5 from 2 ratings, while Promo Buddy averages 5.0 from 1 ratings.
Do Formulize or Promo Buddy have ads?
Promo Buddy shows ads; Formulize does not.

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