Comparison

Delta Chat vs CircleLynk

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

Head to head
About

Delta Chat

A decentralized instant messenger prioritizing privacy and ease of use. It allows secure communication with friends, family, and groups without requiring personal data like phone numbers. The app is flexible, reliable in challenging network conditions, and built on open-source principles.

Highlights
  • Private instant onboarding
  • No phone number required
  • Mutual consent for messaging
  • Multiple chat profiles
  • Works in bad network conditions
  • End-to-end encryption
  • Run with own email/server
Features
Read full description

Delta Chat is a reliable decentralized instant messenger that is easy and fun to use for friends, family, groups and organizations. Delta Chat is developed by a dedicated FOSS contributor community that jointly releases refinements and new features several times a year, across many stores and platforms world-wide. Features at a glance: • Private. Instant on-boarding without a phone number or other private data. • Friends & Family: Only chat with people you know. Unknown users cannot message or follow you without mutual consent. • Flexible. Supports multiple chat profiles and is easy to setup on multiple devices. • Reliable. Works under bad and adversarial network conditions. • Secure. Audited End-to-End encryption safe against network and server attacks. • Sovereign. Can be run with your own e-mail address or server. • FOSS. Fully Open Source/Free Software, built on Internet Standards.

About

CircleLynk

Experience secure and fast instant messaging with a minimalist interface. This app focuses purely on communication, protected by bank-grade encryption for maximum privacy. Connect with millions of users for a simple, distraction-free chat experience.

Highlights
  • Bank-grade encryption
  • Minimalist design
  • Lightning-fast delivery
  • Unique encryption keys per session
  • Distraction-free interface
Features
Read full description

At CircleLynk, every chat is protected by bank-grade encryption. We are committed to providing you with a secure, simple, and fast encrypted messaging tool — bringing communication back to its essence. We keep the App focused purely on instant messaging, with no unrelated content or distractions. Key Features: • Minimalist Design — A clean, uncluttered interface that puts your messages first. No distractions, just pure communication. • Message Encryption — All messages are protected with advanced encryption technology. Each session uses a unique encryption key for maximum privacy. • Lightning-Fast Delivery — Optimized protocols and a distributed server network ensure messages are delivered in milliseconds for a smooth, seamless experience. Ready to start a new way to connect? Join millions of users and experience simple, secure, and fast instant messaging. Website: www.circlelynk.com For any questions, feel free to reach out via the App: Settings → Privacy → About CircleLynk.

Screenshots

Delta Chat4 screens
CircleLynk4 screens

Verdict

The call

The clearest difference is rating: CircleLynk at 5.0 against Delta Chat's 4.4. CircleLynk also leads on review sentiment (100% vs 63%) and update cadence (weekly vs every 3 weeks). Delta Chat's advantage is ratings volume (129 vs 1). On price, ads, in-app purchases and monetization model 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

CircleLynk holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Delta Chat has 129 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 63% of Delta Chat's written reviews are positive against 100% of CircleLynk's.

UpkeepUpdate frequency

Delta Chat ships an update every 3 weeks, CircleLynk weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Delta Chat versus CircleLynk: the parameters behind the verdict, then further details
ParameterDelta ChatCircleLynk
PriceFreeFree
Rating4.4 (129 ratings)5.0 (1 ratings) — better
Positive reviews63.2% of reviews100.0% of reviews — better
Number of ratings129 — better1
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size60 MB117 MB
Age rating4+17+
DevelopermerlinuxCircleLynk (Guangzhou) Technology Co., Ltd.

Customer experience

Delta Chat

All ratings129 ratings
Positive86.8%
Neutral3.1%
Negative10.1%
Written reviews136 reviews
Positive63.2%
Neutral8.1%
Negative28.7%

CircleLynk

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Delta Chat

No in-app purchases

None

CircleLynk

No in-app purchases

Questions

Is Delta Chat free?
Delta Chat is free to download, with no in-app purchases.
Is CircleLynk free?
CircleLynk is free to download, with no in-app purchases.
Which has better reviews, Delta Chat or CircleLynk?
CircleLynk is rated higher. Delta Chat averages 4.4 out of 5 from 129 ratings, while CircleLynk averages 5.0 from 1 ratings.
Do Delta Chat or CircleLynk have ads?
Neither Delta Chat nor CircleLynk shows ads.
Which is updated more often, Delta Chat or CircleLynk?
Delta Chat ships an update every 3 weeks, and CircleLynk weekly. Most recently, Delta Chat was updated on October 30, 2026 and CircleLynk on October 31, 2026.

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