Comparison

Utopia vs True Caller

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

Head to head
About

Utopia

This app offers a private and secure messaging experience through a decentralized peer-to-peer network. It prioritizes user control and data sovereignty by eliminating central servers and requiring no personal identification for registration. Enjoy end-to-end encryption and metadata protection for all your communications.

Highlights
  • Decentralized P2P architecture
  • Advanced cryptography (Curve25519)
  • Metadata shielding
  • Encrypted local vault
  • No email or phone number required
  • Unified secure ecosystem
Features
Read full description

Utopia Messenger is a breakthrough decentralized and private P2P ecosystem with no central server involved in data transmission or storage. Built on a unique peer-to-peer architecture, Utopia Messenger ensures that your digital footprint remains under your complete control. Introducing Utopia Messenger: the ultimate private communication platform that respects your personal boundaries. With Utopia, there's no need to provide your email or phone number. As a fully decentralized network with no intermediary servers, Utopia Messenger ensures your messages stay private, secure, and direct. Experience a new standard of digital sovereignty thanks to the unique nature of the Utopia protocol. Say goodbye to centralized data harvesting and hello to the next generation of secure messaging. Utopia Messenger is a high-security environment designed for professional and personal use without traditional user identification. For registration, you don’t need a phone number, SMS approval, ID card, or email address. Everything you need is to create a secure profile and invite your contacts to a protected space. Core Technical Features: Advanced Cryptography: All data within Utopia Messenger is protected with high-speed elliptic curve cryptography (Curve25519), ensuring that only the intended recipient can access your messages. Decentralized P2P Architecture: Experience direct device-to-device connectivity. Utopia Messenger’s unique protocol ensures stable performance and instant delivery without relying on central storage or third-party hubs. Metadata Shielding: By eliminating central servers, Utopia Messenger protects your communication metadata – including your IP address and connection patterns – from external surveillance. Encrypted Local Vault: Your message history and files are stored in an encrypted vault directly on your device, accessible only to you via your private key. Unified Secure Ecosystem: Send instant messages, transfer files, create group chats, and manage news feeds within a single, protected environment. Why Choose Utopia Messenger? Utopia Messenger eliminates the risks associated with centralized data storage. By using a distributed network, your information is never held on a central server, significantly reducing the surface for data breaches and ensuring your communication remains truly personal. Whether you are conducting a private discussion, sharing sensitive files, or managing a community channel, Utopia Messenger provides a full-fledged environment with a higher level of security and complete decentralization. How It Works: 1. Create a username and password to sign in – no email or phone number required 2. Get your Public Key and uCode from the Settings page, this is how others will find you 3. Add contacts by searching for their Public Keys 4. Start messaging Check us out on the web: https://u.is

About

True Caller

Identify unknown callers, block spam, and access contact details with real photos. This app offers a smart dialer, location sharing, and a live compass for enhanced communication and navigation.

Highlights
  • Identify unknown callers
  • Block spam and fraud
  • Reverse phone lookup
  • Real contact photos
  • Smart dialer
  • Location sharing
  • Live compass
Features
Read full description

True Caller - Caller Id Reveal every caller’s identity Know who’s calling before you answer with True Caller - Caller Id. Whether you’re receiving calls from unknown numbers, checking missed calls, or trying to identify suspicious callers, the app helps you stay informed with fast Caller ID, phone number lookup, number locator, and smart spam detection tools. Designed for everyday communication, True Caller - Caller Id combines caller identification, phone number lookup, caller location information, contact management, GPS-based utilities, and spam protection in one easy-to-use app. Key Features Caller ID Instantly identify incoming callers and view available caller information before answering. Reduce unwanted interruptions and recognize important calls with confidence. Phone Number Lookup Search phone numbers to identify unknown callers and review available caller information before returning missed or unfamiliar calls. Number Locator Access available number location and caller location information to better understand where incoming calls may originate. Caller Details View available caller details including name, region, network, and other supported information to help identify unknown numbers. Phone Tracker & GPS Tools Use built-in phone tracker and GPS features for supported location services, helping you share locations and stay connected with family and friends. Smart Dialer Quickly search your contacts with an intelligent dialer that suggests names and numbers while you type for faster calling. Contact Photos Display photos for saved contacts to create a more personalized calling experience. Location Sharing Share your location with friends and family or access supported shared locations directly within the app. Live Compass Navigate with the integrated compass to help determine direction while using supported location features. World Clock View multiple time zones with the built-in world clock, making it easy to stay connected across different regions. Spam Call Protection Identify potential spam callers and manage unwanted calls with powerful spam detection and call management tools. Offline Caller ID Access previously available caller information even when your internet connection is limited or unavailable. Fast & Easy Experience Enjoy a clean interface designed for quick Caller ID, number lookup, phone tracking tools, and everyday communication. Whether you’re identifying unknown callers, performing a phone number lookup, checking caller location information, managing contacts, or protecting yourself from spam calls, True Caller - Caller Id gives you the tools you need in one simple app. Download True Caller - Caller Id today and enjoy smarter Caller ID, number lookup, phone tracker, GPS utilities, caller location features, and spam protection. Disclaimer: Caller ID, phone number lookup, caller location, number locator, phone tracker, GPS, spam detection, and contact information are based on available data and supported services. Results may vary and may not always be complete or accurate. GPS and location-related features require the necessary permissions and user consent where applicable. Please review our Privacy Policy and End User License Agreement for more information. Privacy Policy: https://sites.google.com/view/truecalle-callerid/home Contact: Email: truecaller.phonetracker@gmail.com

Screenshots

Utopia4 screens
True Caller4 screens

Verdict

The call

The clearest difference is review sentiment: Utopia at 69% against True Caller's 0%. Utopia also leads on rating (4.2 vs 1.0) and in-app purchases (none vs 1). True Caller's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price 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. True Caller sells 1 one-off in-app purchase. Utopia asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Utopia holds the better App Store score, 4.2 against 1.0. That said, the two scores are not equally well evidenced: Utopia has 28 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 69% of Utopia's written reviews are positive against 0% of True Caller's.

UpkeepUpdate frequency

Utopia ships an update every 3 weeks, True Caller every 3 months. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.

Scorecard9 real differences · 1 level
Utopia versus True Caller: the parameters behind the verdict, then further details
ParameterUtopiaTrue Caller
PriceFreeFree
Rating4.2 (28 ratings) — better1.0 (4 ratings)
Positive reviews69.2% of reviews — better0.0% of reviews
Number of ratings28 — better4
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size192 MB46 MB
Age rating17+4+
DeveloperDuong HoangJamal Ud Din

Customer experience

Utopia

All ratings28 ratings
Positive71.4%
Neutral21.4%
Negative7.1%
Written reviews52 reviews
Positive69.2%
Neutral23.1%
Negative7.7%

True Caller

All ratings4 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Utopia

No in-app purchases

1 purchases

True Caller

One-time1
  • Premium Access$3.99

Questions

Is Utopia free?
Utopia is free to download, with no in-app purchases.
Is True Caller free?
True Caller is free to download, with in-app purchases available.
Which has better reviews, Utopia or True Caller?
Utopia is rated higher. Utopia averages 4.2 out of 5 from 28 ratings, while True Caller averages 1.0 from 4 ratings.
Do Utopia or True Caller have ads?
True Caller shows ads; Utopia does not.
Which is updated more often, Utopia or True Caller?
Utopia ships an update every 3 weeks, and True Caller every 3 months. Most recently, Utopia was updated on November 12, 2026 and True Caller on October 30, 2026.

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