Comparison

ZeroSlip vs Contacts Manager

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

Head to head
About

ZeroSlip

This app provides tax-compliant digital receipts accessible via a customer app or SMS. It offers features like return and warranty reminders, store information, and product links. Receipts can also be exported as PDFs.

Highlights
  • Tax-compliant digital receipts
  • Return and warranty reminders
  • Store opening hours and social media links
  • Product information and links
  • Exportable PDF receipts
Features
Read full description

A ZeroSlip Smart Receipt is a tax compliant, easily accessible proof of purchase that lives directly in your Customer App, or via SMS. And it’s free. ZeroSlip Smart Receipts are intuitive and interactive giving you immediate access to features including: 1. Return barcodes and reminders 2. Warranty reminders 3.Opening hours & social media links for your favourite stores 4. Product information and product links 5. Unlock digital marketing channel on ZeroSlip Smart Receipt 6. Exportable PDFs of your receipts

About

Contacts Manager

Read full description

Contacts Manager is the ultimate utility to organise, clean, and optimise your iPhone's address book. Designed with a strict privacy-first, on-device architecture, your contacts never leave your phone. Whether you need to merge years of duplicate entries, clean up messy phone numbers, or bulk-apply country codes, Contacts Manager handles it all instantly with built-in safety backups. Key Features: β€’ Find & Merge Duplicates: Instantly scan your entire address book to find matching names, emails, or phone numbers. Review them one by one or merge them all with a single tap.Β  β€’ Advanced Filtering & Selection: Search and filter your contacts by exact character lengths (e.g., First Name less than 5 characters) and seamlessly bulk-delete or merge the results.Β  β€’ Premium Cleanup Tools: Automatically identify and delete "Empty Ghosts" (contacts missing both a name and a phone number), and instantly auto-capitalize all names in your contact list.Β  β€’ Manual Bulk Edits: Add or replace prefixes across thousands of contacts at once. Perfect for updating local numbers to international formats (e.g., adding +61 or +977).Β  β€’ Remove Blank Spaces: Clean up messy formatting by instantly stripping unnecessary spaces and characters from all saved phone numbers.Β  β€’ Robust Backup System: Safety is the priority. The app automatically creates a local backup before any major bulk action. You can store up to 3 backups, restore them at any time, or export them in standard formats (VCF, CSV, JSON). Designed for speed, safety, and ultimate privacy. Get your contacts perfectly organised today!

Screenshots

ZeroSlip4 screens

Verdict

The call

The clearest difference is device support: ZeroSlip at 2 against Contacts Manager's β€”. ZeroSlip also leads on iOS requirement (12.0 vs 16.6). On price and in-app purchases 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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences Β· 5 level
ZeroSlip versus Contacts Manager: the parameters behind the verdict, then further details
ParameterZeroSlipContacts Manager
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
AdsNoβ€”
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPod β€” betterβ€”
Requires iOS12.0 β€” better16.6
Further details β€” not scored
Size32 MB1 MB
Age rating4+4+
DeveloperKhurram BashirBishow Raj Adhikari

In-app purchases

None

ZeroSlip

No in-app purchases

None

Contacts Manager

No in-app purchases

Questions

Is ZeroSlip free?
ZeroSlip is free to download, with no in-app purchases.
Is Contacts Manager free?
Contacts Manager is free to download, with no in-app purchases.

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