Olvid vs Delta Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Olvid
This private messaging app prioritizes user control and security. It does not require personal data, push contacts, or allow unsolicited messages. Enjoy secure, end-to-end encrypted conversations with guaranteed privacy.
- No personal data required
- User-controlled contacts
- No unsolicited messages
- End-to-end encryption
- End-to-end authentication
- Group creation
- No spam or advertising
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Olvid is the first private instant messaging application for everyone. What is a "private" messenger? It's a messenger: - That does not push new contacts on you. You are in control: you choose who you want to discuss with. Olvid offers several ways to invite other Olvid users, either face-to-face or remotely. - That does not require any personal data. Olvid won't ask for your phone number, for your email. Unlike your previous messenger, Olvid will never request access to your address book. - On which you will never receive unsolicited messages or messages from an unknown source. - Where all exchanges benefit from the same security and privacy as a real-world discussion behind closed doors. Olvid offers end-to-end encryption and end-to-end authentication by default, always, for everything you send or receive. Olvid guarantees you safe spaces, immune to external aggression, which isolate you from the digital noise and violence of other social networks. Create groups with your family, friends and key collaborators. No spam, no advertising. You finally regain full control over your communications. Olvid has been designed to be the best place to exchange on subjects that matter, with those who matter to you. Olvid - Technology ------------------ At the heart of Olvid, a 'cryptographic engine' coming from several years of research allows to mathematically prove the authenticity, the integrity, and the confidentiality of your communications.
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.
- Decentralized instant messaging
- Private onboarding without phone number
- End-to-end encryption
- Multiple chat profiles
- Works on multiple devices
- Self-hosted option
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: Delta Chat at none against Olvid's 4. Delta Chat also leads on ratings volume (127 vs 42). Olvid's advantage is review sentiment (80% vs 63%). On price, rating, update cadence 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
Both are free to download. Olvid sells 4 in-app purchases, starting at $4.49 per month. Delta Chat asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for Olvid against 4.5 for Delta Chat. Both are backed by a comparable volume of ratings — 42 and 127 respectively. Written reviews are what separate them: 80% of Olvid's written reviews are positive against 63% of Delta Chat's.
Olvid ships an update every 6 weeks, Delta Chat every 3 weeks. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.
| Parameter | Olvid | Delta Chat |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (42 ratings) | 4.5 (127 ratings) |
| Positive reviews | 80.0% of reviews — better | 63.2% of reviews |
| Number of ratings | 42 | 127 — better |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 141 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Olvid | merlinux |
Customer experience
Olvid
Delta Chat
In-app purchases
Olvid
- Individual$4.491 Month
- Family$5.991 Month
- Individual$44.901 Year
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- Family$59.901 Year
Delta Chat
No in-app purchases









