Comparison

Delete Contacts ` vs Conversion Calculator

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

Head to head
About

Delete Contacts `

Organize, clean, and back up your address book with a privacy-focused contact management tool. Its intuitive card interface allows for quick deletion or retention of contacts, with a trash feature for review. It also offers duplicate removal and export options.

Highlights
  • Card-based contact view
  • Swipe to keep or delete
  • Trash for deleted contacts
  • Duplicate contact remover
  • Contact backup
  • Contact export
Read full description

Take control of your address book with a smart, all-in-one contact management app. Effortlessly organize, clean up, and back up your contacts — all while keeping your privacy protected. This app does not access or store your contacts. With an intuitive card-based interface, managing your address book is fast and satisfying. Swipe up to keep a contact or swipe down to delete — it's that simple. Key Features: View contacts as cards for a clean, easy-to-navigate experience Swipe up to keep or swipe down to delete unwanted contacts Review deleted contacts in the trash before permanently removing or restoring them Duplicate Contacts Remover: Find and merge or delete duplicate entries in one tap Contacts Backup: Securely back up your entire contact list Contact Exporter: Export contacts in standard formats for easy sharing or migration Try the app for free. An in-app purchase or subscription may be required to unlock unlimited access. Privacy-first design: We never access your contacts. Everything happens securely on your device. Privacy Policy: https://enginesstudio.tech/privacy/cleanly Terms & Conditions: https://enginesstudio.tech/terms/cleanly

About

Conversion Calculator

This utility app offers a comprehensive unit conversion tool for various needs, including cooking, travel, and work. It supports over 120 units across 15 categories, with metric and imperial options. The app works offline and allows for customization of displayed decimals and category order.

Highlights
  • 15 categories and 120+ units
  • Metric and imperial conversions
  • Cooking, weight, length, temperature, and more
  • Offline functionality
  • Customizable decimal display
  • Apple Watch app
Features
Read full description

Convert cooking measurements, kg to lbs, feet to meters, Celsius to Fahrenheit and psi to bar in a tap. Conversion Calculator is a fast, clean unit converter for the kitchen, travel, the gym, school and work. COOKING & KITCHEN • Cups, tablespoons, teaspoons, fluid ounces, pints, quarts and gallons • US and imperial (UK) cups, pints and gallons kept separate, so recipes come out right • Grams, ounces and pounds for baking WEIGHT & BODY • kg to lbs, stones, ounces, grams and milligrams LENGTH, AREA & LAND • Feet, inches, meters, cm, miles, km, yards and nautical miles • Square feet, square meters, acres and hectares TEMPERATURE, SPEED & MORE • Celsius, Fahrenheit and Kelvin • km/h, mph, knots and m/s • Energy: calories, kcal, joules and kWh • Data: bytes, KB, MB, GB and TB • Time: seconds to hours PRESSURE, FUEL, POWER & MORE • Pressure: psi, bar, kPa, atm, mmHg and inHg • Fuel economy: mpg (US and UK), L/100 km and km/L • Power: horsepower (hp), kW and watts • Torque: N·m, lbf·ft and kgf·m • Force: newtons, lbf and kgf • Angle: degrees, radians and gradians MADE FOR EVERYDAY USE • 15 categories and 120+ units, metric and imperial • Swap units in one tap and copy the result • Reorder categories so the ones you use are on top, or hide the rest with Pro • Choose how many decimals to show • Apple Watch app for conversions on your wrist • Works offline Converting is free. Pro is an optional one-time purchase.

Screenshots

Delete Contacts `4 screens
Conversion Calculator4 screens

Verdict

The call

Delete Contacts ` and Conversion Calculator both sit at 4.7 stars, but that hides the real split: 100% of Conversion Calculator's written reviews are positive against 38% of Delete Contacts `'s. Conversion Calculator also leads on ads (none vs shown) and device support (3 vs 1). On price, rating, ratings volume and update cadence 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. Delete Contacts ` sells 4 in-app purchases, starting at $4.99 per 7 days and Conversion Calculator 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

On the App Store both sit at effectively the same score — 4.7 for Delete Contacts ` against 4.8 for Conversion Calculator. Both are backed by a comparable volume of ratings — 138 and 165 respectively. Written reviews are what separate them: 38% of Delete Contacts `'s written reviews are positive against 100% of Conversion Calculator's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 weeks. Both last shipped on November 12, 2026.

Scorecard3 real differences · 7 level
Delete Contacts ` versus Conversion Calculator: the parameters behind the verdict, then further details
ParameterDelete Contacts `Conversion Calculator
PriceFreeFree
Rating4.7 (138 ratings)4.8 (165 ratings) — better
Positive reviews37.5% of reviews100.0% of reviews — better
Number of ratings138165 — better
Update frequencyEvery 5 weeksEvery 5 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size13 MB10 MB
Age rating4+4+
DeveloperENGINES STUDIO LABCollins Cheruiyot

Customer experience

Delete Contacts `

All ratings138 ratings
Positive91.3%
Neutral2.9%
Negative5.8%
Written reviews8 reviews
Positive37.5%
Neutral0.0%
Negative62.5%

Conversion Calculator

All ratings165 ratings
Positive95.8%
Neutral3.0%
Negative1.2%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Delete Contacts `

Subscriptions2
  • Access for 1 week$4.997 Days
  • Premium Access for 1 Year3 Days trial$9.991 Year
One-time2
  • Tip$0.99
  • Delete Contacts Pro$12.99
1 purchases

Conversion Calculator

One-time1
  • Unlimited access forever$8.99

Questions

Is Delete Contacts ` free?
Delete Contacts ` is free to download, with in-app purchases available.
Is Conversion Calculator free?
Conversion Calculator is free to download, with in-app purchases available.
Which has better reviews, Delete Contacts ` or Conversion Calculator?
Conversion Calculator is rated higher. Delete Contacts ` averages 4.7 out of 5 from 138 ratings, while Conversion Calculator averages 4.8 from 165 ratings.
Do Delete Contacts ` or Conversion Calculator have ads?
Delete Contacts ` shows ads; Conversion Calculator does not.
Which is updated more often, Delete Contacts ` or Conversion Calculator?
Delete Contacts ` ships an update every 5 weeks, and Conversion Calculator every 5 weeks. Most recently, Delete Contacts ` was updated on November 12, 2026 and Conversion Calculator on November 12, 2026.

Other comparisons