Comparison

imp™ vs Zillit

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

Head to head
About

imp™

This app works with a smart home device to filter unwanted landline calls, allowing only desired contacts to reach you. It also functions as a remote answering machine for your landline, letting you manage voicemails from anywhere.

Highlights
  • Real-time call filtering
  • Greenlist Technology™
  • Syncs iPhone contacts
  • Remote voicemail access
  • Do Not Disturb mode
  • Invite others to landline
Read full description

Use of the imp app™ requires our WiFi-enabled imp box™ (sold separately). Meet imp™ - the smart, simple, and easy solution for making landline spam calls go away. Powered by our Greenlist Technology™, the imp app, and imp box work together to eliminate all unwanted landline calls. This real-time call-filtering technology silently handles the calls you don't want to deal with, freeing you up to focus on welcoming only those calls you actually want to receive. With your imp box in place, the app gives your landline phone superpowers. After seamlessly syncing your iPhone's contacts with your landline at setup, you are ready to receive calls only from people you want to talk to. That means no more spam, scam, telemarketing, robo, or any other unwanted caller of any shape or size. imp is the first smart home answering machine, allowing you to receive and listen to your home's landline voicemails no matter where in the world you are. imp-sters also have the ability to put their landline into "Do Not Disturb" mode, as well as invite others to your landline. Created by our team of experts from the fields of old-school landline technology, secure networks, and modern telecommunications, imp is a new approach to your landline phone experience. With imp you now have the power to welcome calls by design, and silence the rest. To learn more about imp, visit us at: www.joinimp.com

About

Zillit

This app offers a unified communication platform for entertainment industry professionals and others. It allows for real-time notices, image uploads, calendar events, and secure document sharing. Users can make individual or group audio/video calls and communicate privately via units or chat, all within a project-based framework.

Highlights
  • Real-time notices and image uploads
  • Calendar event creation
  • Secure document sharing (general/confidential)
  • Individual/group audio & video calls
  • Private communication via Units or Chat
  • Cross-device sync (desktop/mobile)
  • Project-based communication
Features
Read full description

ZILLIT App is all encompassing communication tool for the Entertainment Industry professionals and for professionals in Other fields. It can send notices, upload images, create calendar events, all in real time. You can upload & share documents generally or confidentially. You can make individual or group audio & video calls. You can communicate privately thru Units or thru Chat. You can work from your desktop or from your mobile device with auto sync between them. It offers all communication in one place. Communication is done only on project basis which the app provides. No need to collect phone numbers or give out yours while working on a project. It is completely private and flexible. It is simple to create a project or join a project. You can create multiple projects and switch between them easily. It is offered in 21 languages.

Screenshots

imp™3 screens
Zillit4 screens

Verdict

The call

The clearest difference is update cadence: Zillit at every 4 days against imp™'s every 2 months. imp™'s advantage is iOS requirement (12.1 vs 15.0). On price, rating, ratings volume and ads 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for imp™ against 5.0 for Zillit. Both are backed by a comparable volume of ratings — 12 and 8 respectively.

UpkeepUpdate frequency

imp™ ships an update every 2 months, Zillit every 4 days. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 8 level
imp™ versus Zillit: the parameters behind the verdict, then further details
Parameterimp™Zillit
PriceFreeFree
Rating5.0 (12 ratings)5.0 (8 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better8
Update frequencyEvery 2 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.1 — better15.0
Further details — not scored
Size36 MB473 MB
Age rating4+4+
DeveloperIts My Phone, IncZillit LLC

Customer experience

imp™

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Zillit

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

imp™

No in-app purchases

None

Zillit

No in-app purchases

Questions

Is imp™ free?
imp™ is free to download, with no in-app purchases.
Is Zillit free?
Zillit is free to download, with no in-app purchases.
Which has better reviews, imp™ or Zillit?
imp™ and Zillit are both rated 5.0 out of 5 on the App Store, from 12 and 8 ratings respectively.
Do imp™ or Zillit have ads?
Neither imp™ nor Zillit shows ads.
Which is updated more often, imp™ or Zillit?
imp™ ships an update every 2 months, and Zillit every 4 days. Most recently, imp™ was updated on October 1, 2026 and Zillit on October 4, 2026.

Other comparisons