Comparison

Delta Chat vs nMobile

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

Head to head
About

Delta Chat

This decentralized messenger offers private, secure, and reliable instant messaging. It allows for easy setup on multiple devices and supports multiple chat profiles without requiring a phone number. Enjoy end-to-end encryption and the flexibility to run it with your own email or server.

Highlights
  • Decentralized instant messaging
  • Private onboarding without phone number
  • End-to-end encryption
  • Multiple chat profiles
  • Works on multiple devices
  • Self-hosted option
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

nMobile

This secure messaging app prioritizes user privacy by keeping all data on your device. It offers end-to-end encrypted chats, group management, and cross-platform compatibility. An optional wallet feature allows for managing cryptocurrency.

Highlights
  • End-to-end encrypted chat
  • Group chat management
  • Cross-platform compatibility
  • HTML/Markdown message formatting
  • Optional cryptocurrency wallet
  • NKN token support
Features
Read full description

nMobile secure chat protects your personal data by keeping it on your device where it belongs. All messages are encrypted and no data is ever stored in the cloud. Key features of nMobile: D-Chat: – Secure group chat and private one-on-one chat with end-to-end and hop by hop encryption – Manage private groups (group admin, add/remove user, mute) – Cross platform, chat with other nMobile users or use our compatible web browser plugin to securely chat with users on almost any device – Send images, animated gifs, and format your messages with HTML/MarkDown NKN Mobile Wallet (optional): – NKN Mainnet token formats supported – Manage your NKN wallet right from your mobile, create or import an existing wallet and export your wallet for backup. – Send or receive NKN token payments General: – supports both English and Chinese language nMobile is developed by NKN.org. NKN is building the world's largest mesh network featuring new communication services such as content delivery, secure messaging, and direct file transfer.

Screenshots

Delta Chat4 screens
nMobile4 screens

Verdict

The call

The clearest difference is review sentiment: nMobile at 92% against Delta Chat's 63%. nMobile also leads on rating (4.8 vs 4.5) and iOS requirement (13.0 vs 15.6). Delta Chat's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (127 vs 21). 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

nMobile holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Delta Chat has 127 ratings behind it against 21, 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 92% of nMobile's.

UpkeepUpdate frequency

Delta Chat ships an update every 3 weeks, nMobile every 3 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Delta Chat versus nMobile: the parameters behind the verdict, then further details
ParameterDelta ChatnMobile
PriceFreeFree
Rating4.5 (127 ratings)4.8 (21 ratings) — better
Positive reviews63.2% of reviews91.7% of reviews — better
Number of ratings127 — better21
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size61 MB73 MB
Age rating4+4+
DevelopermerlinuxNKN Labs Inc.

Customer experience

Delta Chat

All ratings127 ratings
Positive87.4%
Neutral3.1%
Negative9.4%
Written reviews136 reviews
Positive63.2%
Neutral8.1%
Negative28.7%

nMobile

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews12 reviews
Positive91.7%
Neutral0.0%
Negative8.3%

In-app purchases

None

Delta Chat

No in-app purchases

None

nMobile

No in-app purchases

Questions

Is Delta Chat free?
Delta Chat is free to download, with no in-app purchases.
Is nMobile free?
nMobile is free to download, with no in-app purchases.
Which has better reviews, Delta Chat or nMobile?
nMobile is rated higher. Delta Chat averages 4.5 out of 5 from 127 ratings, while nMobile averages 4.8 from 21 ratings.
Do Delta Chat or nMobile have ads?
Neither Delta Chat nor nMobile shows ads.
Which is updated more often, Delta Chat or nMobile?
Delta Chat ships an update every 3 weeks, and nMobile every 3 months. Most recently, Delta Chat was updated on October 25, 2026 and nMobile on October 24, 2026.

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